The equation of line passing through the point (-3, -1) and is perpendicular to the line y = -x/2 - 5 is y = 2x + 5
What are perpendicular lines?perpendicular lines are defined as two lines that meet or intersect each other at right angles (90°).
In such lines the product of their gradients is -1.
if y = -x/2 - 5
then comparing the equation with y = mx + c
it means slope(m) = -1/2
so the slope(p) of the second line perpendicular to the above line will be
p x m = -1
p = -1/m
p = -1 ÷ -1/2
p = 2
so if x = -3, y = -1 and substituting these values into the equation of line , y = mx + c becomes
-1 = 2 x (-3) + c
-1 = -6 + c
collect like terms
c= 6 - 1
c = 5
Equation of the second line becomes,
y = 2x + 5
In conclusion, the equation of the lines passing through point(-3, -1) is y = 2x + 5
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In the picture, you see 1 paper cup and 5 paper cups that are stacked together. The table shows the heights of stacks with different numbers of cups.
Which function rule gives the height of a stack of cups in terms of the number of cups in a stack?
The function rule that gives the height of a stack of cups is h(c) = 8+ 2(c)
How to determine the function rule that gives the height of a stack of cups?
Looking at the image, 1 paper cup has a body height of 8cm (total height = 10cm) and the height of the cups increases by 2cm for each cup added.
If you add three cups, for example, the height increases by 6cm (3 x 2cm). If you add n cups the height will increase by 2n and the total height will be 8+2n
Number of cups, c >>>>> Process >>>>> Height of stack, h(cm)
c 8+ 2(c) h
h(c) = 8+ 2(c)
Note: It is h(c) because c is the input and h is the output
Therefore, the function rule that gives the height of a stack of cups in terms of the number of cups in a stack is h(c) = 8+ 2(c)
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A train travels at 80 miles per hour. An equation can be written that compared that the time(t) with the distance(d). What is the domaine and range?
The equation that compares the time (t) with the distance (d) would be; 80 (t) = d
What is an equation?
An expression that depicts the relationship between two or more numbers and variables is called an equation. Two or more equations that can be solved to get a singular result are referred to as a system of equations. The equation's power must be in one degree.
Given that A train travels at 80 miles per hour. We need to find the equation that compares the time (t) with the distance (d)
where t means time so if the train travels 2 hours then it will travel;
80 × 2 = 160 miles
Therefore, the equation that compares the time (t) with the distance (d) would be; d = 80t.
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The federal unemployment tax act (futa) is a payroll tax paid by employers on employee wages. The tax is 6. 0% on the first $7,000 an employee earns each year. If walmart has 1. 5 million employees in the u. S. , about how much does it pay in futa taxes annually?.
The amount of tax that Walmart pay annually in FUTA is $630 million .
In the question ,
it is given that ,
the amount that an employee earns in 1 year(E) = $7000
the tax rate (r) = 6%
number of employees in Walmart = 1.5 million = 1.5 × 10⁶
So , the amount of tax paid by Walmart in Federal Unemployment Tax Act(FUTA) can be calculated using the formula
Amount = r × n × E
Substituting the values of r , n , E in the amount formula ,
we get ,
Amount = 0.06 × 1.5 × 10⁶ × 7000
= 630,000,000
= 630 million .
Therefore , The amount of tax that Walmart pay annually in FUTA is $630 million .
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wich is the smallest angle in MNO?
For the given triangle MNO, as per the given measurements the smallest angle among all the three angles is ∠M.
As given in the question,
In the given triangle MNO,
Measure of the sides of the triangle are as follow:
MN = 18 yd
NO = 17 yd
MO = 19 yd
Arrange them in ascending order we have,
17 < 18 < 19
NO < MN < MO
From the given measurement of the sides of the triangle , smallest side is NO.
Angle opposite to side MN = ∠O
Angle opposite to side NO = ∠M
Angle opposite to side MO = ∠N
Angle opposite to the smallest side is the smallest angle.
∠M is the smallest angle.
Therefore, for the given triangle MNO, as per the given measurements the smallest angle among all the three angles is ∠M.
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Patrick has a rectangular backyard at his new house. After he built a square brick patio, he planted grass in the rest of the yard, as shown below. The grass area is 656 square feet. Two measurements of the grass region are shown in the diagram below. What is the side length of the square patio? Note: The figure is not drawn to scale.
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
A wholesale food supplier charges x dollars for each bag of flour and y dollars for each bag of sugar. Bakery A purchases seven bags of flour and five bags of sugar for a total cost of $260.45. Bakery B purchases five bags of flour and three bags of sugar for a total cost of $171.35. What is the cost of each bag of flour? Each bag of sugar?
The cost of each bag of flour is $ 18.85 and the cost of each bag of $ 25.7 which a wholesale food supplier charges for each bag of flour and for each bag of sugar.
Given that:
The cost of each bag of flour = x dollars
The cost of each bag of sugar = y dollars
Bakery A purchases seven bags of flour and five bags of sugar for a total cost of $260.45.
Bakery B purchases five bags of flour and three bags of sugar for a total cost of $171.35.
Making equation from both the above statements. We get,
7x + 5y = 260.45 ...... (1)
5x + 3 y = 171.35 ....... (2)
Multiplying equation (1) by 5 and equation (2) by 7. We get the value,
35x + 25y = 1302.25 ....... (3)
35x + 21y = 1199.45 ........ (4)
Subtracting equation (4) from (3). We get,
4y = 102.80
=> y = $ 25.70
Putting the value of y in equation (1). We get,
7x + 25.70 x 5 = 260.45
7x = 260.45 - 128.5
7x = 131.95/7
=> x = $ 18.85
Hence, we can say that a wholesale food supplier charges 18.85 dollars for each bag of flour and 25.7 dollars for each bag of sugar.
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If h(x) = -2x + 10, what is the value of x when h(x) = 2
Answer:
-6
Step-by-step explanation:
to solve you need to substitute the value of x in the equation which is given as 2so if you rewrite the equation it will be
-2(2)+10
=(-2*2)+10
=-4+10
=6
Alexa has $4.75 worth of dimes and quarters. She has 2 more dimes than quarters. Determine the number of dimes and the number of quarters that Alexa has.
Answer:
Alexa has 13 quarters and 15 dimes.
Step-by-step explanation:
First, we should set up a system of equations using the given information. We can use q to represent the number of quarters and d to represent the number of dimes.
Since quarters are $0.25, dimes are $0.10, and the total is $4.75 we know 0.25q + 0.1d = 4.75
The problem tells us that there are 2 more dimes than quarters, so d = q + 2
To solve for the number of quarters, we can substitute the second equation into the first equation.
0.25q + 0.1 (q + 2) = 4.75
0.25q + 0.1q + 0.2 = 4.75
0.35q = 4.55
q = 13
Then, to solve for the number of dimes, we can substitute q into the second equation.
d = q + 2
d = 13 + 2
d = 15
A Bunch of Systems
Solve each system of equations without graphing and show your reasoning. Then, check
your solutions.
2x + 3y = 7
-2x + 4y = 14
Answer:
(- 1, 3 )
Step-by-step explanation:
2x + 3y = 7 → (1)
- 2x + 4y = 14 → (2)
add (1) and (2) term by term to eliminate x
(2x - 2x) + (3y + 4y) = (7 + 14)
0 + 7y = 21
7y = 21 ( divide both sides by 7 )
y = 3
substitute y = 3 into either of the 2 equations and solve for x
substituting into (1)
2x + 3(3) = 7
2x + 9 = 7 ( subtract 9 from both sides )
2x = - 2 ( divide both sides by 2 )
x = - 1
As a check
substitute the values of x and y into the left side of both equations and if equal to the right side in both equations then the values of x and y are true.
(1) 2(- 1) + 3(3) = - 2 + 9 = 7 ← true
(2) - 2(- 1) + 4(3) = 2 + 12 = 14 ← true
then (- 1, 3 ) is the solution to the system
Answer:(- 1, 3 )
Step-by-step explanation:
which graph represents y=-2x
A graph which represents the linear function y = -2x is: graph B.
What is a graph?In Mathematics, a graph can be defined as a type of chart that is typically used for the graphical representation of data points or ordered pairs on both the horizontal and vertical lines of a cartesian coordinate, which are the x-axis and y-axis respectively.
Generally speaking, the graph of any proportional relationship is characterized by a straight line with the data points passing through the origin (0, 0) because as the values on the x-axis (x-coordinate) either increases or decreases, the values on the y-axis (y-coordinate) increases or decreases simultaneously.
In this context, we can reasonably infer and logically deduce that the relationship between x-values and y-values in the graph of y = -2x is proportional as it passes through the origin (0, 0).
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the normal model n(58,21) describes the distribution of weights of chicken eggs in grams. suppose that the weight of a randomly selected chicken egg has a z-score of -1.41. what is the weight of this egg in grams? round to the nearest hundredth of a gram.
By using normal distribution, it is obtained that weight of a randomly selected chicken egg is 28.39 grams
What is normal distribution?
Normal distribution is a continuous type probability distribution whose probability density function is
[tex]\frac{1}{\sigma \sqrt{2\pi}}e^{-\frac{z^2}{2}[/tex]
where, z = [tex]\frac{x - \mu}{\sigma}[/tex]
[tex]\mu[/tex] is the mean and [tex]\sigma[/tex] is the standard deviation
In case of normal distribution
Formula for z = [tex]\frac{x - \mu}{\sigma}[/tex]
[tex]\mu[/tex] is the mean and [tex]\sigma[/tex] is the standard deviation
Let the weight of the egg be x grams
Here, z = -1.41, [tex]\mu[/tex] = 58 and [tex]\sigma[/tex] = 21
[tex]-1.41 = \frac{x - 58}{21}\\[/tex]
x = -1.41 [tex]\times[/tex] 21 + 58
x = 28.39 grams
Weight of a randomly selected chicken egg is 28.39 grams
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PLEASE HELP. I need both the x and y and the length of DF
The value of x is 17, y is 2 and length of DF is 20.
Basic Proportionality Theorem (can be abbreviated as BPT) states that, if a line is parallel to a side of a triangle which intersects the other sides into two distinct points, then the line divides those sides in proportion.
For x
DG = GE ( Given )
DG + GE = DE
DE = 2(DG)
DG/DE = 1/2
hence GH/EF = 1/2
By Basic Proportionality Theorem ( BPT )
(x – 3) / 28 = 1/2
after cross multiplication
2(x – 3) = 28
2x – 6 = 28
2x = 34
x = 17
For y
By Basic Proportionality Theorem (BPT) to side DF
DF = 2(DH)
DH/DF = 1/2
(y + 8) / (y + 8 + x – 7) = 1/2
after cross multiplication
2(y + 8) = y + 8 + x – 7
put x = 17
2(y + 8) = y + 8 + 17 – 7
2(y + 8) = y + 18
2y + 16 = y + 18
2y = y + 2
2y – y = 2
y = 2
DF = 2(2+8)
= 2(10)
= 20
Hence, x is 17, y is 2 and DF is 20.
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Solve the equation
2x²+ 8x - 1 = 0
by completing the square.
Give your answers correct to 2 decimal places.
Answer:
x = 0.08
Step-by-step explanation:
2x²+ 8x - 1 = 0
4x + 8x - 1 = 0
12x - 1 = 0
Add 1 to the -1 and to the 0 too
12x = 1
Divide both side
x = 0.08
The regular price of swimming lessons is $20 per hour. The sale price for new students is 75% of the regula
price. What is the sales price?
Daya contributes a set percentage of her gross pay towards a 401k account and will have a total of $172,486.00 by retirement. Daya's employer also contributes a set percentage, which will increase her total by $161,531.00. What is the percent increase between the total without Daya's employer contribution and the total with? Round to the nearest whole percent.
94%
79%
52%
48%
The percent increase between the total without Daya's employer contribution and the total with is A. 94%.
How to calculate the percentage?From the information, Daya contributes a set percentage of her gross pay towards a 401k account and will have a total of $172,486.00 by retirement and her employer also contributes a set percentage, which will increase her total by $161,531.00.
Therefore, the percentage increase will be:
= Increase in amount / Original amount × 100
= 161,531/172486 × 100
= 94%
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-3(x + 4) + 5x simplify
Answer:
Answer: 2x-12
Step-by-step explanation:
First, you distribute and then combine like terms. :)
Answer:
Step-by-step explanation:
Step 1 : Distribute
The distributive property is a rule in mathematics that is used to help simplify equations by using brackets
-3(x+4) + 5x
-3x - 12 + 5x
Step 2 : combine similar tribes
Similar terms are terms in algebra that have the same variables or constants in algebra. Similar terms of the algebraic form above are. Similar terms are terms in algebra that have the same variables or constants in algebra.
-3x - 12 + 5x
2x - 12
Step 3 : common factor
Common factor is the same factor of two or more numbers. For example, the factors of the numbers 18 and 12 can be determined in the following way. So, the common factors of these two numbers are 2, 3, and 6.
2x - 12
2 (x-6)
Completion
2(x-6)
A base-10 three digit number $n$ is selected at random. Which of the following is closest to the probability that the base-9 representation and the base-11 representation of $n$ are both three-digit numerals?
A. 0.3 B. 0.4 C. 0.5 D. 0.6 E. 0.7
The probability that the representation in base-9 and the representation in base-11 are both three-digit numbers is 0.6753 which is approximately 0.7 option E.
Given,
We require the following inputs to determine the probability that both the base-9 representation and the base-11 representation are three-digit numbers:
The lowest base 10-based 3-digit base-11 numberThe largest three-digit base 9 in base 10 number.The total amount of 3-digit base-10 numbersThe base-11's lowest 3-digit number is 100.
The comparable number is 121 when expressed in base 10.
888 is the biggest 3-digit base-9 number.
The corresponding number is 728 when expressed in base 10.
As a result, there are the following possibilities:
Possibilities = 728 - 121 + 1
Possibilities = 608
The total number of 3-digit base-10 numbers is
Count = 999 - 100 + 1
Count = 900
The necessary probability is:
P = 608/900
Evaluate
P = 0.6753 ≈ 0.7
Therefore,
The probability that the representation in base-9 and the representation in base-11 are both three-digit numbers is 0.6753 which is approximately 0.7 option E.
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Please solve both blanks and round to the nearest tenth please<3
The inequality will be 3.70x ≤ 145 and the number of items that you can by is x ≤ 39
Total budget that you have = $145
The price of each item = $3.70
Consider the number of items = x
The inequality will be
3.70x ≤ 145
We have to solve the inequality to find the number of items
3.70x ≤ 145
Divide 3.70 on the both side of the inequality
3.70x / 3.70 ≤ 145 / 3.70
x ≤ 39.18
x ≤ 39
The number of items that you can buy is x ≤ 39
Hence, the inequality will be 3.70x ≤ 145 and the number of items that you can by is x ≤ 39
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Find the exact value of the expression. Do not use a calculator.
sin 79°-cos 11°
I got 0. I'm not sure if that's right.
Answer:
sin(79°) - cos(11°) = 0
Step-by-step explanation:
Based on the rule sin(90-x) = cos(x), we can transform the expression. See the attached for more details
Select the correct answer.
Which number best represents the slope of the graphed line?
A. -5
B.-1/5
C. 1/5
D.5
Answer:
A. -5
Step-by-step explanation:
You want the slope of a graphed line that crosses grid points (0, 2) and (1, -3).
SlopeThe sign of the slope is positive if the line goes up to the right. This line goes down to the right, so the sign of its slope is negative. (Eliminates choices C and D)
The magnitude of the slope is the ratio of vertical distance to horizontal distance between two points. This line drops 5 vertical squares for each square to the right, so its slope is ...
rise/run = -5/1 = -5
The slope is best represented by -5.
__
Additional comment
From a point on the line that is a crossing of grid lines, if the line crosses the next vertical grid line before it crosses the next horizontal grid line, the magnitude of its slope is less than 1.
Here, the line crosses several horizontal grid lines before it crosses another vertical grid line, so its slope has a magnitude greater than 1. When the choice is between -5 and -1/5, the larger magnitude number is -5.
From two points on the line, you can find the slope using the formula ...
m = (y2 -y1)/(x2 -x1)
m = (-3 -2)/(1 -0) = -5/1 = -5 . . . . . . using points (0, 2) and (1, -3)
The purchase price of an iPad is $610. If the sales tax rate is 6.5%, what is the amount of sales tax?
Answer:
Step-by-step explanation:
$603.5
Answer:39.65
Step-by-step explanation:
turn 6.5% to 0.065
610 x 0.065=39.65
Determine which integers in the set S:{-24, -6, 12, 24) will make the inequality (m-3) s(m-12) false. OS:{-24, 24} OS:{-24, -6} OS:{-6, 12} OS:{12, 24}
The integers in the set S:{-24, -6, 12, 24) that will make the inequality 1/3(m - 3) ≤ 1/6(m - 12) false are: S:{12, 24}.
How to determine the integers?In order to determine which integers are true and false with respect to a solution of the given inequality, we would have to test the given integers by substituting their values into the inequality as follows;
For integers (-24, 24), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(-24 - 3) ≤ 1/6(-24 - 12)
1/3(-27) ≤ 1/6(-36)
-9 ≤ -6 (True).
For integers (-24, 24), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(24 - 3) ≤ 1/6(24 - 12)
1/3(27) ≤ 1/6(36)
9 ≤ 6 (False).
For integers (-24, -6), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(-6 - 3) ≤ 1/6(-6 - 12)
1/3(-9) ≤ 1/6(-18)
-3 ≤ -3 (True).
For integers (-6, 12), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(12 - 3) ≤ 1/6(12 - 12)
1/3(9) ≤ 1/6(0)
3 ≤ 0 (False).
For integers (12, 24), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(12 - 3) ≤ 1/6(12 - 12)
1/3(9) ≤ 1/6(0)
3 ≤ 0 (False).
1/3(m - 3) ≤ 1/6(m - 12)
1/3(24 - 3) ≤ 1/6(24 - 12)
1/3(27) ≤ 1/6(36)
9 ≤ 6 (False).
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what is the probability of picking a blue marble randomly out of a bag of 6 blue marbles, 3 black marbles, and 8 orange marbles while rolling a 3 on a 6-sided dice at the same time?
Using the concepts of probability, we got that 0.063 is the probability of picking a blue marble randomly out of a bag of 6 blue marbles, 3 black marbles, and 8 orange marbles while rolling a 3 on a 6-sided dice at the same time
We know very well that probability is defined as the fraction of number of favorable outcomes to the total number of outcomes.
Here, we are rolling a 6-faced dice.
Getting 3 on the top face of dice is same as the any number getting from 1 to 6 on the top face of the dice.
So, every number has equal probability to come on the top face, therefore the probability of getting 3 on the top face of dice is (1/6)
Now, similarly total number of marbles in the bag=6 blue +3 black+8 orange marble=17 marbles.
Now, picking one marble from 17 marble is can be done in [tex]^1^7C_1[/tex] ways, similarly choosing 1 blue marble from 6 marble can be done in [tex]^6C_1[/tex] ways.
So, probability of picking 1 blue marble randomly=6/17
Now, the probability of picking 1 blue marble from 17 marbles along with rolling dice probability is given by =(6/17)×(1/6)=(1/17)=0.063
Hence, the probability of picking a blue marble randomly out of a bag of 6 blue marbles, 3 black marbles, and 8 orange marbles while rolling a 3 on a 6-sided dice at the same time is 0.063
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Question 12
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>
Cost of Bottled water. A water bottling company charges $8 per month for their water dispenser and
$4 for each gallon of water delivered. If you have g gallons of water delivered in a month, then the
expression 8 + 4g gives the amount of your bill for that month. Find the monthly bill for 20 gallons.
The monthly bill for 20 gallons of water is $88.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
A water bottling company charges $8 per month for their water dispenser and $4 for each gallon of water delivered.
If you have g gallons of water delivered in a month.
Then, the equation to represent the amount of your bill for that month.
8+ 4g
Now, for g=20 the amount of bill would be
= 8 +4(20)
= 8+ 80
= $88
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I need help with this please.
(50 POINTS)
Answer: ( -2, -3 )
Step-by-step explanation:
Can you guys help me please bc I tried this and I got it wrong .
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
you multiply the denominator with the denominator and the numerator with the numerator
[tex]\frac{5}{6}x\frac{2}{5}[/tex]
[tex]\frac{5x2}{6x5}[/tex]
[tex]\frac{10}{30}[/tex]
[tex]\frac{1}{3}[/tex]
Hopes this helps please mark brainliest
Evaluate n(x) = -1 - x + 4 when x = -2,0, and 5
x = -2, n(-2) = -1 - (-2) + 4 = 5
x = 0, n(0) = -1 - 0 + 4 = 3
x = 5, n(5) = -1 - 5 + 4 = -2
Look at the chart below. There are several places marked *
out with a blue box. Figure out what place goes in each
box. Then, type the second letter of each missing place in
order from greatest place value to least place value in
ALL CAPITALS.
Answer:
no chart
Step-by-step explanation:
show chart let us see what to use
The edges of a rectangular solid have these measures: 1. 5 feet by 1½ feet by 3 inches. What is its volume in cubic inches?.
Volume of the rectangular solid in cubic inches for the given measures of edges 1. 5 feet by 1½ feet by 3 inches is equal to 972 cubic inches.
As given in the question,
Given measures of edges of the rectangular solid is equal to :
1. 5 feet by 1½ feet by 3 inches
Length = 1.5 feet
Conversion 1 feet = 12 inches
1.5 feet = 1.5 × 12
= 18 inches
Width = 1½ feet
= 3/2 feet
= ( 3/2 ) × 12
= 18 inches
height = 3 inches
Volume of the rectangular solid = length × width × height
= 18 × 18 × 3
= 972 cubic inches
Therefore, volume of the rectangular solid in cubic inches for the given measures of edges 1. 5 feet by 1½ feet by 3 inches is equal to 972 cubic inches.
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Can someone help me with this