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2 years ago

Dr. Cwetna recorded all of the grades on a unit test on the chart below.

Mathematics

2 answers:

labwork [276]2 years ago

4 0

Answer:

1. 82.75

2.10.65

3. 93.4, 72.1

4. 104.05, 61.45

5. 114.7, 50.8

6. Yes

7. Because of the placement of these ranges on the graph

8. 35/91 = .38 %

By taking the amount of all of the students who scored a 90 or above and dividing it by the total amount of students.

Step-by-step explanation:

PLEASE MARK ME BRANLIEST

Molodets [167]2 years ago

3 0

Answer:

I got 2 more questions can somebody answer for me plz that adds to this. In your own words, explain HOW to find the standard deviation of this data set. What does the standard deviation tell you about this data? (20 points)

Step-by-step explanation:

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Mindy and Daisy are making necklaces using beads. Mindy uses 4 red beads for every 5 white beads. Daisy uses 6 red beads for eve

makvit [3.9K]

Answer:

Daisy

Step-by-step explanation:

Daisy:

12/4=3

3*5=15 white beads

Mindy:

12/6=2

2*7=14 white beads

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2 years ago

Graph the inverse of the function.

Ghella [55]

Answer:

The graph of the inverse function is the same that the graph of the original function

Step-by-step explanation:

step 1

Find the equation of the function in the graph

Let

f(x) ---> the function in the graph

we know that

Is a linear function

take the points (0,6) and (6,0)

Find the slope of the linear function

$m=(0-6)/(6-0)\\m=-1$

Find the the equation of the linear function in slope intercept form

$f(x)=mx+b$

we have

$m=-1$

$b=6$ ---> the y-intercept is given

substitute

$f(x)=-x+6$

step 2

Find the inverse of the function f(x)

Let

y=f(x)

$y=-x+6$

Exchange the variables (x for y and y for x)

$x=-y+6$

Isolate the variable y

$y=-x+6$

Let

$f^{-1}(x)=y$

$f^{-1}(x)=-x+6$

$f^{-1}(x)=f(x)$

In this problem the graph of the inverse function is the same that the graph of the original function

4 0

2 years ago

-4x-y=24 what is the answer to this

lorasvet [3.4K]

If it is a slope formula I believe it is y= 4x-24

7 0

2 years ago

Ms. Maxwell bought a purse with 1/4 of her money. The purse cost 37.00. How much money did Ms. Maxwell have left after she bough

bixtya [17]

Answer:111

the purse was 1/4 so. we have to do

37.00x4 we get 148 then. we do 148-37 to get a total of 111 (:

Step-by-step explanation:

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1 year ago

Brainliest if correct

kari74 [83]

Answer:

A.1/3

Step-by-step explanation:

1 Pick two points on the line and determine their coordinates.

2 Determine the difference in y-coordinates of these two points (rise).

3 Determine the difference in x-coordinates for these two points (run).

4 Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

7 0

2 years ago