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Lemur [1.5K]
3 years ago
9

Marissa is researching information martial art students she found that 7 out of 12martial artist practice every day there are 14

4 martial arts students at a school predict how many students practice every day what is the sample size
Mathematics
2 answers:
svlad2 [7]3 years ago
6 0
<span>So we want to know how many students out of 144 practice martial arts every day if we know that 7/12 practice every day. So lets multiply the numerator and the denumerator with 12. We will get (12*7)/(12*12)=84/144. And we got our answer: 84 out of 144 students practice every day.</span>
aksik [14]3 years ago
6 0

Answer:

84 students out of 144 students practice everyday.

Step-by-step explanation:

Marissa is researching information martial art students, she found that 7 out of 12 martial artist practice everyday.

First we will find the percentage of the sample research.

\frac{7}{12} × 100

= 58.33%

There are 144 martial arts students, so we calculate 58.33% of total students.

\frac{58.33}{100} × 144

= 0.5833 × 144 = 83.995 ≈ 84 students.

84 students out of 144 students practice everyday.

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Find a equation for the line below
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Step-by-step explanation:

A(-2;1)

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(y-1)/4=(x+2)/8

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6 0
3 years ago
Garret has a bag that contains cubic 2 7/16 feet of mulch. If he uses 8/9 of the bag in his garden how much mulch is left in the
Dimas [21]

Answer:

0.27 cubic feet of mulch is remaining

Step-by-step explanation:

Quantity in the bag = 2 7/16 cubic feet of mulch

Quantity used = 8/9 of the bag in his garden

Mulch used = 8/9 of 2 7/16

= 8/9 × 39/16

= 1/9 × 39/2

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3 0
3 years ago
The black graph is the graph of y= f(x). Choose the equation for the red graph
Montano1993 [528]

Answer:

Option C.

Step-by-step explanation:

First, let's define the transformations used here:

We can see that the red graph is shifted horizontally to the right, and that is reflected across the x-axis:

Horizontal shift:

For a general function f(x) an horizontal shift of N units is written as:

g(x) = f(x + N)

where:

If N > 0, the shift is to the left

if N < 0 , the shift is to the right.

Reflection across the x-axis.

For a function f(x), a reflection across the x-axis is just written as:

g(x) = -f(x)

So, if here we have a reflection across the x-axis and a horizontal shift of one unit to the right, we would write the equation for the red graph as:

g(x) = -f(x)     (only for the reflection)

g(x) = -f(x - 1)    (for the reflection and the shift)

Then the graph of the red function is:

y = -f(x - 1)

We can rewrite this as:

y = -1*f(x - 1)

dividing both sides by -1 we get:

y/-1 = f(x - 1)

This is what we can see in option C, so the correct option is C.

6 0
3 years ago
Need help with 25 &amp; 27 PLEASE!!!
Mumz [18]

Answer:

1

Step-by-step explanation:

easy

6 0
3 years ago
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