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Brut [27]
3 years ago
9

Evaluate c -2 when c equals 7.

Mathematics
1 answer:
kherson [118]3 years ago
6 0

Answer:

the answer is 5

Step-by-step explanation:

hope it help

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Two ships leave a harbor together, traveling on courses that have an angle of 135 degrees between them. if they travel 402 miles
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What is the measure of m? 6 3 n 18 m = [?] Give your answer in simplest form. Enter​
alina1380 [7]

By solving a system of equations, we will see that m measures 12 units.

<h3>How to get the measure of m?</h3>

Notice that we have 3 right triangles.

Then we can write the equations:

cos(a) = 6/m

For the small triangle on the left, where m is the hypotenuse.

cos(a) = m/(6 + 18)

For the larger triangle (the one composed of the two triangles).

Where in both equations, angle "a" is the one in the top left.

Then we have the system of equations:

cos(a) = 6/m

cos(a) = m/(6 + 18)

Then we can write:

6/m = m/(6 + 18)

If we simplify the expression, we get:

6*(6 + 18) = m^2

6*(24) = m^2

144 = m^2

√144 = m = 12

Then we conclude that m measures 12 units.

If you want to learn more about right triangles:

brainly.com/question/2217700

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8 0
2 years ago
Suppose a random sample of 40 students from a university were asked their ages. The table below gives a summary of the reported
fomenos

Answer:

I think it is

Step-by-step explanation:

(18.0, 22.0). We are 95% confident that the mean age of university students is between 18 and 22.

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Est ce que vous pouvez m’aider à faire cette exercice svp.Je dois le rendre demain . ABC est un triangle tels que AB=6cm, AC=5cm
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Answer:

english ples

Step-by-step explanation:

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3 years ago
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