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Bond [772]
3 years ago
7

A survey of 100 doctors revealed that 2 out of every 5 doctors recommended Brand M deodorant. Based on these results, how many d

octors did NOT recommend Brand M?
Mathematics
1 answer:
kotegsom [21]3 years ago
4 0

Answer:

40

Step-by-step explanation:

5 x 5 is 25 so 2 x 5, 20 times makes 40

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Find the mean and median for this set of number: 80, 70, 60, 40, 80.
castortr0y [4]
Median: 70 mean: 55.
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3 years ago
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What is the equation for the axis of symmetry of your quadratic ? <br> Y=x^2-4x
vekshin1

Answer:

y =  {x}^{2}  - 4x \\ y = x(x - 4)

6 0
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Solve the equation kx+9=7 for x
Alika [10]

Answer:

x=-2/k

Step-by-step explanation:

To solve you need to make x on one side while the other variables or numbers on the other.

First, you need to move the 9 to the other side by subtracting 9 from both sides: kx+9-9=7-9

Simplify: kx=-2

Now you need to divide by k into both sides in order to eliminate the k on kx:

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Answer: x=-2/k

Hope this helps!

3 0
3 years ago
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For the graphed function f(x) = −(5)x − 3 + 2, calculate the average rate of change from x = 3 to x = 4.
azamat

Answer:

-4 is the average rate of change from 3 to 4

Step-by-step explanation:

Average rate of change is defined as the fraction of change in f(x) value to change in x value.

Here we have x values as 3 and 4.

To find the average rate of change from x=3 to x=4

Average rate of change = change in f(x)/change in x

f(4) = -5^{4-3} +2 = -3\\f(3) = 1\\f(4)-f(3) = -3-1 =-4

Change in x = 4-3 =1

6 0
3 years ago
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Evaluate the expression please.
Tanzania [10]

Answer:

-7

Step-by-step explanation:

-3-(-10)/-2+1

-3-5+1

-8+1

-7

6 0
2 years ago
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