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3 years ago

The lengths of the sides of a triangle are given below. Classify the triangle as acute, obtuse, or right.

Mathematics

1 answer:

enot [183]3 years ago

8 0

Answer:

B. Obtuse Triangle

Step-by-step explanation:

Use Pythagorean to identify if the triangle is right:

9² = 7² + 3²
81 = 58

We see the triangle is not right and the difference of the squares tells us the angle opposite to side with measure of 9 is greater than 90°.

It means the triangle is obtuse.

Correct choice is B

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Josh wrote 483 out of an expected 500 words from his essay. How would this ratio be

ehidna [41]

Answer:

0.966

Step-by-step explanation:

483:500 = 0.966

i hope this is right x

4 0

3 years ago

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please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

4 0

1 year ago

emily has a bowl of M&M's for every 25 M&M's there are blue 5 M&M's. what percent of her M&M's are blue

KonstantinChe [14]

Answer:

twenty percent.

Step-by-step explanation:

25/5=5

100/5=20

8 0

3 years ago

In a fruit basket , there are 6 apples and 3 oranges . what fraction of the basket are apples ?

solong [7]

Answer:

6/9=2/3

hope this helps

have a good day :)

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

2.4.5

worty [1.4K]

Answer:

150 miles

Step-by-step explanation:

let m represent miles

$70 + .70m = $40 + .90m

subtract 40 from each side

$30 + .70m = .90m

subtract .70m from each side

$30 = .20m

divide both sides by .20

150 = m

5 0

3 years ago