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3 years ago

Find the length of the missing side of the triangle to the nearest tenth.

Mathematics

1 answer:

Vanyuwa [196]3 years ago

7 0

Answer: 15

Step-by-step explanation:

For this question you have to use pythagoras' theorem.

Pythagoras' theorem is c²=a²+b²

So c is the hypotenuse and the hypotenuse is always opposite the right angle.

So the equation would be c²=9²+12²

Then 9²=81 and 12²=144

So the equation would then be c²=81+144

So c²=225

Then you just want to find c on it's own so you have to square root it which is 15.

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If 1 inch on a map represents 20 miles, what is the mileage represented by 2.5 inches?

SOVA2 [1]

Answer:

50 miles(D)

Step-by-step explanation:

20 x 2.5

5 0

3 years ago

Write your answer as a fraction or as a whole mixed number. 2 5/11 - 10 7/11

kaheart [24]

Answer:

-90/11

Step-by-step explanation:

convert each mixed number into a improper fraction

27/11 - 117/11

= -90/11

3 0

3 years ago

Read 2 more answers

PLS HELP TIMED HW WILL GIVE BRAINLEIST

pochemuha

Answer:

4.8

Step-by-step explanation:

$V_{sphere} = \frac{4}{3} \pi r^3$

$144\pi= \frac{4}{3} \pi r^3$

$r^3 = \frac {3 \times 144\pi}{4\pi}$

$r^3 = 3 \times 36$

$r^3 = 108$

$r = \sqrt[3]{108} \\ \\ r = 4.7622031559 \\ \\ r \approx \: 4.8 \:$

4 0

3 years ago

A college professor reports that students who finish exams early tend to get better grades than students who hold on to exams un

s344n2d4d5 [400]

Answer:

The correlation between exam score and amount of time spent on the exam is an example of a <u>negative correlation</u>.

Step-by-step explanation:

Consider the provided statement.

College professor reports that students who finish exams early tend to get better grades than students who hold on to exams until the last possible moment.

That means the student who finish the exam early will get the highest marks. One who finish after the first student will get second highest mark and the one who finish in the end will get the least marks.

Now consider time as first variable and marks as second variable.

That means as the first variable increase the second variable decreases.

According to the definition of Negative correlation: It is a relationship between two variables in which one variable increases as the other decreases, and vice versa.

Hence, the correct answer is negative correlation.

7 0

3 years ago

What is the range of the function f(x) = 4x + 9, given the domain D = {-4, -2, 0, 2}?

anyanavicka [17]

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$f( - 4) = 4( - 4) + 9 = - 7$