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kati45 [8]
4 years ago
13

Mackenzie investigated the relationship between the number of hours studying and the test score for some of the students in her

class. She constructed the scatterplot below.
Mathematics
2 answers:
son4ous [18]4 years ago
6 0

Answer:There is a relationship between study hours and test score. As the hours of studying increase, the test scores increase.

Step-by-step explanation:

From the given scatterplot in which Mackenzie investigated the relationship between the number of hours studying and the test score for some of the students in her class.

We can see that the dots are increasing in the right and go upward with respect to time.

It shows there is a relationship between the test score and hours of studying.

As the hours of studying increase, the test scores increase .

SVETLANKA909090 [29]4 years ago
5 0

Answer:

its letter C.

Step-by-step explanation:

The letter choices "A", "B", "D" do not make sense and they're incorrect!

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What is the slope of the line that goes through (-5,5) and (5,-7)
Ivenika [448]

Answer:

y2-y1/x2-x1

=-7-5/5-(-5)

=-12/10

=-6/5

Step-by-step explanation:

Given two points on on a line to find the slope we use the formula y2-y1/x2-x1 , hence the answer above.

3 0
3 years ago
Holly can walk 3.75 miles per hour. At that same rate, how far can she walk in 2.5 hours?
damaskus [11]
3.75 miles per hr........in 2.5 hrs =
3.75 * 2.5 = 9.375 miles
6 0
4 years ago
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Must a function that is decreasing over a given interval always be negative over that same interval ? Explain
Leno4ka [110]
Check the picture below.

5 0
3 years ago
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How to multiply workout<br><br><br>​
DENIUS [597]

Answer:

Steps to multiply using Long Multiplication

Multiplying 2-Digit by 2-Digit Numbers

Let us multiply 47 by 63 using the long multiplication method.

1. Write the two numbers one below the other as per the places of their digits. Write the bigger number on top and a multiplication sign on the left. Draw a line below the numbers. 



 

2. Multiply ones digit of the top number by the ones digit of the bottom number.

Write the product as shown.



 

3. Multiply the tens digit of the top number by the ones digit of the bottom number.



This is our first partial product which we got on multiplying the top number by the ones digit of the bottom number.

 

4. Write a 0 below the ones digit as shown. This is because we will now be multiplying the digits of the top number by the tens digit of the bottom number. Hence, we write a 0 in the ones place.



 

5. Multiply the ones digit of the top number by the tens digit of the bottom number.



 

6. Multiply the tens digit of the top number by the tens digit of the bottom number.



This is the second partial product obtained on multiplying the top number by the tens digit of the bottom number.

 

7. Add the two partial products.

 

In long multiplication method, the number on the top is called the multiplicand. The number by which it is multiplied, that is, the bottom number is called the multiplier.

So, a long division problem will have:



We follow the same method for multiplying numbers greater than 2-Digits.

The figure below shows the long division method to multiply 357 by 23

4 0
3 years ago
If f(x) = 4x + 3 and g(x) = 3x, evaluate for X = -1/2
miskamm [114]

Answer:

 f(-\frac{1}{2}) = 1

g(-\frac{1}{2} ) = -\frac{3}{2}

Step-by-step explanation:

Given the function f(x) = 4x + 3 and the function g(x) = 3x, to evaluate for x=-\frac{1}{2}, you need to substitute it into each function.

Then, for the function f(x), when  x=-\frac{1}{2}, you get:

 f(-\frac{1}{2}) = 4(-\frac{1}{2}) + 3

 f(-\frac{1}{2}) = 4(-\frac{1}{2}) + 3

 f(-\frac{1}{2}) = -\frac{4}{2}+ 3

 f(-\frac{1}{2}) = -2 + 3

 f(-\frac{1}{2}) = 1

For the function g(x), when  x=-\frac{1}{2}, you get:

g(-\frac{1}{2} ) = 3(-\frac{1}{2})

 g(-\frac{1}{2} ) = -\frac{3}{2}

4 0
3 years ago
Read 2 more answers
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