Answer:
Step-by-step explanation:
SI-
Class:
28
Graphing Review #2 (8)
Name: GO
1. The following database shows ice cream sales based on daily high temperatures.
Ice Cream Sales vs Temperature
Temperature C Ice Cream Sales
$215
14.2
16.40
$325
11.99
$185
15.2
600
$332
18.5°
$406
.
22.10
$522
$500
19.40
$412
25.1
3400
$614
15300
a) Construct a scatter plot
to compare the total sales
to the daily high temperature,
b) What type of correlation is $200
shown by the data?
100
c) Draw a line of best fit.
d) Predict what the total sales would
se if the temperature was 17°C ?
10
Ve6
Temperature
4k - (2k - 7)
Helppppp
Answer:
2k+7
Step-by-step explanation:
4k - 1 ( 2k - 7 )
4k-2k +7
1. If energy is the ability to cause change, then
what evidence is there that energy is produced in
the interaction between the wind and the blades of
the wind turbine?
Answer:
We get electricity, that's all the evidence
Step-by-step explanation:
Have a GOOD DAY
We will use the idea that "energy is the ability to cause change" to study the interaction between wind and the blades of a turbine.
This is actually really trivial, if we look at the blades and they are stopped, then we can conclude that there is no wind, thus there is no energy. (By the Newton's laws, we know that there must be a force to change the movement of something).
Now if wind comes, the wind will cause a force on the blades making them rotate.
So a form of energy comes, mechanical energy, and we can see how it produces changes.
Then by the rotation of the blades, there are dynamos that can be used to charge and store energy, this is (roughly) how a wind turbine works.
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x2 is to 441 as x3 is to ___.
Solve for c in x^2 = 441
Taking the square root of both sides x = 21
Now x^3 = 21^3 = 9,261
The answer is 9,261
The solution is x² is to 441 as x³ is to 9261
What is Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
x² = 441
Taking square roots on both sides , we get
x = 21
Therefore , x³ = 21 × 21 × 21
x³ = 9261
Hence , x² is to 441 as x³ is to 9261
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After Carlos purchased some stock, the price rose $6 per share: the price then dropped $8 per share. What integer represents the total change in the value per share.
Answer:
-2
Step-by-step explanation:
6+(-8)=-2
The force of gravity on the surface of jupiter is about 2.5 times as strong as that on earth. ON jupiter, the height of a ball dropped from a 100-meter tower is given by the function h(t) = -25t +100 meters at t seconds. How many seconds will it take for the ball to hit the ground?
Answer:
4 seconds
Step-by-step explanation:
Given
[tex]h(t) = -25t + 100[/tex]
Required
Determine what time it hits the ground
When the ball is on the ground, the height is at 0
i.e.
[tex]h(t) = 0[/tex]
Substitute 0 for h(t) in [tex]h(t) = -25t + 100[/tex]
[tex]0 = -25t + 100[/tex]
Collect Like Terms
[tex]25t = 100[/tex]
Solve for t
[tex]t = 100/25[/tex]
[tex]t = 4[/tex]
Hence, the ball will hit the ground in 4 seconds
---------Help, please :(----------
Answer:
No
Step-by-step explanation:
The function is not one to one because there are multiple x-values for each y-value.
Andreas drew the model below to represent the equation 20 + 10 = blank x (4 + 2).
A model with 5 rows of 4 and 5 rows of 2.
What is the missing value in Andreas’s equation?
2
4
5
6
Answer:
It's C.
Step-by-step explanation:
If you get both of them you can get the real answer
Answer:
its 5
Step-by-step explanation:
because 4+2=6 divide 30 by 6 and that will give you 5
eight more than three times a number is 32
Answer:
3 times 8 = 24 + 8 = 32
Step-by-step explanation:
Answer:
The number is 8
Step-by-step explanation:
3x + 8 = 32
3x = 24
x = 8
________
A number can be denoted as x. 3 times a number is 3 of that number, and 8 more than a number is that number plus 8. This relationship can be given by:
x + x + x + 8 = 32
(x + x + x) + 8 = 32
3x + 8 = 32
3x + 8 - 8 = 32 - 8
3x = 24
3x/3 = 24/3
x = 8
Please help!! Need this turned in!! In the picture!!
Answer:
I hope this helps please name me brainliest
Step-by-step explanation:
Answer all questions thoroughly, pls!!
1. How can you distinguish between linear and exponential functions?
2. How do increasing linear functions and exponential growth functions compare?
3. Give an example of a linear function and an exponential function.
1.You can recognize exponential and linear function by their graph.Linear functions are straights while exponential functions are curved lines.You can also recognize them by the change in your.If the same number is being added to y,then the function has a constant change and is linear.3:-An example of a exponential function is the growth of bacteria and A common equation,y=mx+b y=mx+b,(namely the slope-intercept form,which we will learn more about later)is a example of a linear function.2:-For constant increments in x,a linear growth would increase by a constant difference,and an experimental growth would increase by a constant ratio.
The base of the triangle is 16 feet and the height of the triangle is 6 feet. What is the length of the congruent sides of the isosceles triangle?
Answer:
6 times 16 equals 96 divided by 2 (or half) equals 48
Step-by-step explanation:
Find the total cost to the nearest cent.
$49.95 pair of shoes; 5% tax
Answer:
$52.45
Step-by-step explanation:
the tax is $2.50, if we add that to $49.95 we get $52.45
Total cost will be $52.45.
What is Percentage?
A relative value indicating hundredth part of any quantity is called percentage.
Given that;
Cost of shoes = $49.95
Tax = 5%
Now,
The value of tax = 49.95 × 5%
= 49.95 × 5/100
= 2.50
So, Total cost = $49.95 + $2.50
= $52.45
Thus, Total cost will be $52.45.
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Please help! I'll give brainliest!
Who refused to help the colonists of Roanoke Island?
The Queen
Other colonists
British government
Croatoan Indians
Answer:
British Government
Step-by-step explanation:
Answer:The Croatan
Step-by-step explanation: I am literally on the module two exam and it’s obvious Plus I read about this
Sara used a number line to add. She started counting at 10, and then she counted until she
was over the number -4 on the number line. If Sara is modeling addition, what number did
she have to add to 10?
Answer:
-14
Step-by-step explanation:
I don't understand this, plz help
pretty please help me with my geometry work, thank you :)
Answer:
9. MP = 49
10. VT = 62
Step-by-step explanation:
#9
∵ In the rhombus, all the sides are equal in length
∵ MNOP is a rhombus
∵ MN = NO = OP = PM
∵ MN = 9x - 77
∵ OP = 3x + 7
→ Equate them to find x
∴ 9x - 77 = 3x + 7
→ Add 77 to both sides
∴ 9x = 3x + 84
→ Subtract 3x from both sides
∴ 6x = 84
→ Divide both sides by 6
∴ x = 14
→ Substitute the value of x in the expression of OP to find its length
∵ OP = 3(14) + 7 = 42 + 7
∴ OP = 49
∵ All the sides are equal in length
∴ MP = 49
--------------------------------------------------------------------------------------------------------
#10
∵ The diagonals of the square bisect each other
∵ STUV is a square
∵ SU and TV are its diagonals
∴ W is the mid-point of SU and TV
∴ SW = WU
∵ SW = 2x + 13
∵ WU = 8x - 41
→ Equate them to find x
∴ 8x - 41 = 2x + 13
→ Add 41 to both sides
∴ 8x = 2x + 54
→ Subtract 2x from both sides
∴ 6x = 54
→ Divide both sides by 6
∴ x = 9
→ Substitute x in the expression of SW to find it
∵ SW = 2(9) + 13 = 18 + 13
∴ SW = 31
∵ SU = SW + WU
∵ SW = WU
∴ SU = 31 + 31 = 62
∵ Diagonals of the square are equal in length
∴ SU = VT
∴ VT = 62
Ashley recently opened a store that uses only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person \dfrac{2}{3} 3 2 start fraction, 2, divided by, 3, end fraction of a minute to prepare one bag. How many hours will it take Ashley and 4 of her friends to prepare 1575 bags of samples?
Answer:
5.3 hours
Step-by-step explanation:
Ashley recently opened a store that uses only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes Ashley 2/3 of a minute to prepare one bag. It takes each of her friends 75% longer to prepare a bag. How many hours will it take Ashley and 4 of her friends to prepare 1575 bags of samples?
Time it takes 1 person to preprate one bag = 2/3 min
Time it takes each friend of Ashley: 75% more than 2/3 min
75% × 2/3 minutes
=75/100 × 2/3 minutes
= 0.75 × 2/3
= 0.5 min
= 1/2 minutes
Friends = 2/3 min + 1/2 min = 7/6 min per friend
Time it takes Ashley and the 4 friends working along to prepare one bag:
Ashley's time per bag = 1 bag / (2/3) min
= 3/2 bag/min
Ashley's friends time per bag = 1 bag / (7/6) min
= 6/7 bag/min
Total = 3/2 bag/min + 4 × 6/7 bag/min
= (3/2 +24/7)
= 69/14 bag/min
Time it takes to prepare 1575 bags of samples = number of bags / number of bags per min
= 1,575 bags / (69/14) bags/min
= 319.56 min
Convert to hours:
356.56 min / 60 min per hour
= 5.3 hours
Answer:
3.5 hrs
Step-by-step explanation:
Khan Academy!
Find the equation of the line that passes through the following two points: (3, -7) and (7, 2)
Answer:
[tex]y=\frac{9}{4}x-\frac{55}{4}[/tex]
Step-by-step explanation:
Slope-intercept form: y = mx + b
Slope formula: [tex]\frac{y2-y1}{x2-x1}[/tex]
Given points: (3, -7), (7, 2)
(3, -7) = (x1, y1)
(7, 2) = (x2, y2)
To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.
First, let's find the slope. To do this, input the given points into the slope formula:
[tex]\frac{2-(-7)}{7-3}[/tex]
Simplify:
2 - (-7) = 2 + 7 = 9
7 - 3 = 4
[tex]\frac{9}{4}[/tex]
The slope is [tex]\frac{9}{4}[/tex].
To find the y-intercept, input the slope and one of the given points(in this example I'll use point (7, 2)) into the equation and solve for b:
[tex]2=\frac{9}{4}(7)+b[/tex]
[tex]2=\frac{63}{4}+b[/tex]
[tex]-\frac{55}{4} =b[/tex]
The y-intercept is [tex]-\frac{55}{4}[/tex].
Now that we know the slope and the y-intercept, we can write the equation:
[tex]y=\frac{9}{4}x-\frac{55}{4}[/tex]
3 10/15 - 1 12/15
please help I will give you Brainlyest
Answer:
as a mixed number it will be 1 13/15
but in exact form it will be 28/15
Step-by-step explanation:
hope this helped.. :)
[tex]1\frac{13}{15}[/tex] is the solution for [tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex]
What is Fraction?Fractions represent the parts of a whole or collection of objects.
The given expression is
[tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex]
Firstly we need to convert this mixed fraction to improper fraction.
Improper fractions are fractions whose numerator is greater than denominator.
((15×3)+10)/15 - ((15×1)+12)/15
(45+10)/15 - (15+12)/15
55/15-27/15
15 is the LCM
(55-27)/15
28/15
Now we convert this to improper fraction
[tex]1\frac{13}{15}[/tex]
Hence [tex]1\frac{13}{15}[/tex] is the solution for [tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex].
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How many of you guys think Into The Night by Bath & Body Works is really masculine?
Answer:
I think it smells like a grandma but a strong one but it also smells good a little
Step-by-step explanation:
Which of these is an example of typing at an average rate of 42 words per minute?
Select one
Answer:
typing 16 words in 2/3 of a minute
Step-by-step explanation:
very very sorry for the late response wish i could have seen this earlier
Step-by-step explanation:
Answer:
typing 16 words in 2/3 of a minute
Step-by-step explanation:
If g(x)=4x-5 find g(-3).
Answer: -17
Explanation: If g(x) = 4x - 5, then g(-3) = 4(-3) - 5 which simplifies to -17.
Which three lengths could be used to form a right triangle?
15, 15, 48
19, 36, 57
51, 68, 85
7, 10, 14
Answer:
7, 10, 14 would be the answer
A stack of cards contains 17 red cards and 9 black cards. What are the odds against drawing a red card?
A. 9:17
B. 17:9
C. 9:26
D. 17:26
Answer:
Step-by-step explanation:
A
What is the area of this figure?
Please help!!
Answer:
16,200 im not sure if its right just multiply everything then add to multiplication x3
The gravity coaster travels 340 meters in 10 seconds. The hurricane coater travels 190 meters in 5 seconds. Both coaters travels at a constant. Mario wants to ride the faster roller coaster. How fast does the gravity coaster travel? Find the unit rate.
Answer:
Mario would like to ride Hurricane coaster.
Gravity coaster travels at a unit rate of 34 m/s.
Step-by-step explanation:
Distance traveled by Gravity coaster = 340 meters
Time taken by Gravity coaster = 10 seconds
Distance traveled by Hurricane coaster = 190 meters
Time taken by Hurricane coaster = 5 seconds
Unit rate is nothing but the distance traveled by each coaster in unit time.
To find the unit rate, we can use the following formula:
[tex]Speed = \dfrac{Distance}{Time}[/tex]
Unit rate or speed of Gravity coaster = [tex]\frac{340\ m}{10\ s} = 34\ m/s[/tex]
Unit rate or speed of Hurricane coaster = [tex]\frac{190\ m}{5\ s} = 38\ m/s[/tex]
So, the faster coaster is the Hurricane coaster.
Mario would like to ride Hurricane coaster.
Gravity coaster travels at 34 m/s.
Which of the following is equal to [(x^2y^3)^-2/(x^6y^3z)^2]^-3
Answer:
A,B,D
Step-by-step explanation:
right on edge
Answer:
A,B,D
Step-by-step explanation:
The soccer team is planning to sell health bars for a fundraiser. The prices of purchasing health bars from two different companies are represented by the system of equations shown, where x is the number of bars purchased and y is the total cost in dollars.
Company A: y=0.75x
Company B: y=10+0.50x
How many bars would the team need to purchase from each company in order for the total cost to be equal?
6
8
30
40
Answer:
30
Step-by-step explanation:
What is the slope and y-intercept of the linear function?
f(x)= 2/3x + 12
42 push ups in 5 minutes
Answer: Uh, hurray?
Step-by-step explanation: I can do 100 in a minute
Answer:
um are you saying i have to do this?
Step-by-step explanation:
n o not happening i've never been good at push-ups