Is there anyone here that knows how to solve quadratic equations using the quadratic formula?
Answer:
Me, I just learned it, I can help
Step-by-step explanation:
Formula:
ax^2 + bx + c
Answer:
the quadratic formula is x = (-b +_ √b^2 -4ac)/2a
find a, b, and c by this: ax^2 +bx + c = 0
and plug the value into the quadratic formula
How do organism replace dead or injured cells? Organisms can take cells from other organisms. Organisms are limited to the amount of new cells that they can make through their lifetime. Organisms can make new cells by consuming other organisms. Organisms go through mitosis that allows new identical cells to be made.
Answer: Organisms go through mitosis that allows new identical cells to be made.
explanation:
mitosis also occures when cells are worn out or are injured and the mitosis will replace the injured cells
The monthly dues for a premium membership at a health club is $15 more than the cost of a standard membership. The premium member is $40. Write
and solve an equation to find the cost of a standard membership. Use the variable x.
Answer:
Step-by-step explanation:
40-15=x
25=x
check
25+15=40
The required cost of a standard member is $25 as of the given condition.
Given that,
The monthly dues for a premium membership at a health club is $15 more than the cost of a standard membership. The premium membership is $40.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
here,
Let the cost of the standard membership be x,
According to the question,
x = 40 - 15
x = 25
Thus, the required cost of a standard member is $25 as of the given condition.
Learn more about arithmetic here:
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Help!!!!Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.
Enter the correct answer.
Answer:
[tex]m=\frac{-1}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (0, -4)
Point (-8, 0)
Step 2: Find slope m
Substitute: [tex]m=\frac{0+4}{-8-0}[/tex]Add/Subtract: [tex]m=\frac{4}{-8}[/tex]Simplify: [tex]m=\frac{-1}{2}[/tex]- Mt. Everest is considered the tallest mountain in the world at 8,848 meters above sea level. In fact, the forgest
mountain in the world is Mauna Loa, in Hawai'i, Mauna Loa rises 4, 170 meters from sea level to the top of the
summit, but its base is deep under water. The base of the mountain is at -5,000 meters,
A probe is dropped 7, 500 meters straight down into Mauna Los from its summit.
At what height is the probe, relative to sea level?
meters
How far is the probe from the base of the volcano?
meters
Answer: 10000
A.) 4170m above sea level ;3330m below sea level
B) 1670 m from the base.
Step-by-step explanation:.
Given that:
Mauna Loa :
4,170 meters (from sea level to summit)
-5000 meters (base of mountain to sea level)
Depth of probe dropped from summit of Mauna Loa = 7500 m
Height of probe relative to sea level :
Depth of probe - height of Mauna Loa(from sea level to summit)
7500 m - 4170 m = 3330 m
Hence, height of probe relative to sea level :
4170m above sea level
3330m below sea level
Distance of probe from base of volcano:
Total depth of Mauna Loa = (4170 + 5000) = 9170m
Total depth of probe = 7500 m
Distance of probe from base :
9170 - 7500 = 1670 m
The probe is 1670 m from the base of the volcano.
4 and 2/3 divided by 2/5
Answer:
the answer is 35/3 ur welcome
Exits along interstate highways were formerly numbered successively from the western or southern edge of a state. However, the department of transportation has recently changed most of them to agree with the numbers on the mile markers along the highway. (a) what level of measurement were data on the consecutive exit numbers? Nominal ratio interval ordinal (b) what level of measurement are data on the milepost numbers? Nominal ordinal ratio interval (c) the newer system provided information on the distance between exits.
a. True
b. False
Answer:
Following are the answer to this question:
In question, a) ordinal.
In question, b) ratio .
In question, c) true.
Step-by-step explanation:
For its "ordained" existence, regular data is used to conduct surveys and questionnaires. To identify respondents into different categories, a quantitative methodology is employed to sufficient excess.
Its ratio data is defined as a statistical method with the same features as continuous variables, that recognize the proportion of each data to an absolute null as its source. In many other words, the meaning of the line graph may not be positive.
Its newest program gives the gap between exits data.
where is plymoth rock
Answer:
If u mean plymouth rock then the answer is
Lost at sea, they happened upon a piece of land that would become known as Cape Cod. After surveying the land, they set up camp not too far from Plymouth Rock. ... The 102 travellers aboard the Mayflower landed upon the shores of Plymouth in 1620. This rock still sits on those shores to commemorate the historic event.
Step-by-step explanation:
Isabella pitches for her high school softball team. Of the 7 pitches she throws, 5 are strikes. She uses a standard deck of cards to model her pitches, with hearts, clubs, and spades representing strikes. Which statement about her model is true?
A- Her model can be improved the most by removing all the face cards from the deck. B-Her model cannot be improved. C-Her model can be improved the most by removing all the aces from the deck. D-Her model can be improved the most by removing the queens and kings of hearts, clubs, and spades.
Answer:
B. Her model cannot be improved.
Step-by-step explanation:
We make this conclusion because it seems Isabella's model isn't actually proffering any solution to increase/reduce the number of strikes she has had.
Hence, any changes made do not clearly seem to improve the present model she is using.
Answer:
The correct answer is D!
Step-by-step explanation:
Write an equation of the line graphed in slope-intercept form:
Answer:
-2.5x+2
I hope this is good enough:
y-intercept is at positive 2 so you would have +2
it has a negative slope because it is going downwards
on the graphing calculator I used 2 wasn't big enough to make the x intercept and 3 was to big so I went in the middle and it looked correct.
A car wheel has a diameter of 20.8 inches.
About how far does the car wheel travel in 1 rotation? 5 rotation? 30 rotations?
Answer:
65.312 inches326.56 inches1959.36 inchesStep-by-step explanation:
Givend = 20.8 inchesTo findTravel in 1, 5, 30 rotationsSolutionCircumference of the wheel is equal to one full rotation
C = πd = 3.14*20.8 = 65.312 inches5C = 5*65.312 = 326.56 inches30C = 30*65.312 = 1959.36 inchesAnswer:
1 rotation: 65.312 inches
5 rotations: 326.56 inches
30 rotations: 1959.36 inches
Circumference = π and diameter
3.14 x 20.8 = 65.312 inches
5C = 5 x 65.312 = 326.56 inches
30C = 30 x 65.312 = 1959.36 inches
Tyler's brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler's brother make per hour?
help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Straight lines.
Since there are more than one lines that can land plane safely, we take one of it,
When, X = 10 and Y = 7, so the equation we get as,
y-7 = m(x-10) + c
lets find slope, that is value of m,
y2-y1/x2-x1 = m
so, 9-7/ 7-10 = 2/-3
so, m= -2/3
so the final Equation is,
=> y-7 =(-2/3)(x-10) +c
-3+|n-2|>5
How would you solve this?
Answer:
3n-6>5
3n>5+6
3n>11
n>11/3
n>3.6
Answer:
n < 1/3
Step-by-step explanation:
-3(n-2) > 5
-3n + 6 > 5
-3n > 5 - 6
-3n > -1
n > -1/-3 (flip the sign of the inequality because you divided by a negative number)
Hence, n < 1/3 OR n < 0.333
I'm more than 9 dozen and less than the number of days in 4 months. The sum of my digits is 11.
Answer: 92 or 119
in 4 months, 2 months with 30 days per month, 2 months with 31 days per month
suppose: the number to find is X
have: 90 < X < 30.2 + 31. 2 ⇔ 90 < X < 122
if X is a number has 2 digits => X is xy
=> [tex]\left \{ {{x+y=11} \atop {90<x\leq 100}} \right.[/tex]
=> xy = 92
if X is a number has 3 digits => X is abc
we have: [tex]\left \{ {{a+b+c=11} \atop {100\leq abc<122}} \right.[/tex]
because 100 ≤ abc < 122 => a = 1; b = 0 or 1
+) if a =1 ,b = 0 but a+ b +c = 11 => c = 10 (removed because c is a 1-digit number)
+) if a = 1, b = 1 => c = 9
=> abc = 119
=> X is 92 or 119
Step-by-step explanation:
During Saturday’s game the football team gained 87 yards rushing and 213 yards passing how many more yards were gained passing than rushing.
Define a variable,write an equation, then solve.
the answer is 126 hope it helps
gordon types 1800 words in 25 minutes. word per minute
Answer:
72
Step-by-step explanation:
words per minutes= 1800÷25=72
Find the mean proportional for each pair. SHOW YOUR SOLUTION
1. 6, 24
Answer:
The mean proportional of 6, and 24 will be 12
Step-by-step explanation:
We know that the Mean proportional of two
numbers, x, and y : [tex]\sqrt{xy}[/tex]
Therefore, the mean proportional of 6, and 24
[tex]=\sqrt{6\times 24}[/tex]
[tex]=\sqrt{144}[/tex]
[tex]\mathrm{Factor\:the\:number:\:}\:144=12^2[/tex]
[tex]=\sqrt{12^2}[/tex]
[tex]\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a[/tex]
[tex]\sqrt{12^2}=12[/tex]
[tex]=12[/tex]
Therefore, the mean proportional of 6, and 24 will be 12.
3. Which property of multiplication is shown by the equation
14.y.1 = 14y?
A. Associative
C. Commutative
B. Distributive
D. Identity
Answer:
identity
Step-by-step explanation:
it states that any number times 1 is equal to itself. so when u have 14y, you can multiply it by 1 and it will remain the same.
Answer:
identity
Step-by-step explanation:
Select the equation of the line that passes through the point (3,-1) and is
perpendicular to the line on the graph. (2 points)
1) y=-1
2) y = 3
3) x= -1
4) x = 3
Answer:
Y = 3.
Step-by-step explanation:
I think it's the best way to get
Answer:
y=3
Step-by-step explanation:
What is the value of n?
7.8x10^6=(3x10^4) (2.6x10^n
The value of n is...
Answer:
n = log([tex]\frac{100}{x^2}[/tex])
Step-by-step explanation:
Take the logarithm of both sides of the equation to remove the variable from the exponent.
please I need help! answer below.
Is A. B. C. D.?
Answer:
it is B
Step-by-step explanation:
I NEED HELP PLEASE!!!
Answer:
C (-13,-2)
Step-by-step explanation:
On the first half of a birdwatching trip, Marya saw 8 birds, and 25% were cardinals. By the end of the trip, she had seen 12 more birds, none of which were cardinals. What percent of all of the birds that Marya saw were cardinals?
Answer:
10% of all the birds she saw were cardinals.
Step-by-step explanation:
25% of 8 is 2
So she saw 2 cardinal birds overall.
12+8=20
2 0f 20 is 10%
Hope this helps. Have a nice day!
Explain what is occurring in each chunk of the graph
Answer:
Please check the explanation.
Step-by-step explanation:
As the given graph includes distance 'd' at the y-axis and time 't' at the x-axis.
so from the distance-time graph, it is clear that the graph includes 5 chunks.
The first chunk of the graph indicates that the object has started traveling. And the distance 'd' is being covered in time 't', as the slope is upward, hence the speed of the object is increasing.
Please note that speed is basically the distance covered per unit time.The second chunk of the graph indicates the no distance is being covered. It means the object is at rest.
The third chunk of the graph indicates that the distance 'd' is being covered in time 't', as the slope is again upward, hence the speed of the object is increasing and the object has started traveling.
The fourth chunk of the graph indicates that the slope is downward, and the object has started traveling to get back to the destination, and eventually, the object has reached the starting point.
What is the unit rate for the cereal when it is 3/$10?
A $3/box
B $3.30/box
C $3.33/box
D $3.67/box
Please help , this is for my math test and i really need to pass it, i’ll give brainliest and a thanks , please this is important!! (worth 20 points)
Answer:
the first dot is -5/4
the second dot is -3/4
the third dot is 0.25
the fourth dot is 1.5
the fifth dot is 6/3
FOR 30 POINTS
Which of the following is equivalent to 7.4 kilograms?
74,000 cg
74 hg
740 g
740,000 mg
Answer:
i belive the answer is 740,000 mg
GIVING 20 POINTS FOR THIS IF YOU ANSWER IT CORRECTLY!!!!!!!!!!
Which of the following sets represents the range of the function shown? (5 points)
{(–3, 4), (5, 11), (9, –1), (10, 13)}
{–3, 5, 9, 10}
{–1, 4, 11, 13}
{(4, –3), (11, 5), (–1, 9), (13, 10)}
{–3, –1, 4, 5, 9, 10, 11, 13}
Answer:
b (the second choice)
Step-by-step explanation:
range is basically the y
domain is like x
The graph below represents the following system of inequalities.
y > 2x + 1
x ≤ 0
Which set of ordered pairs satisfy the given system of inequalities?
A. {(-3,-2), (-2,-1), (-1,3)}
B. {(-1,3), (-2,-5), (4,-8)}
C. {(-3,-2), (-2,1), (-4,-8)}
D. {(-1,-3), (-2,-5), (-4,-8)}
Answer:
its D jus got it right!!!
Step-by-step explanation:
D. {(-1,-3), (-2,-5), (-4,-8)}