9. Hannah solved an equation as shown below.

Mathematics

1 answer:

8_murik_8 [283]2 years ago

7 0

The answer is c. distributive, addition, then division.

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What is the length of the hypotenuse of the triangle below

Hatshy [7]

One way to solve this is to use Pythagorean theorem: the square of one leg of triangle plus square of other leg of the triangle equals c the hypotenuse (longest side of triangle). You might see this as the formula a^2 + b^2 = c^2, where a and b are the legs and c is the hypotenuse.
In this case, the legs are 3√2 and the hypotenuse is h.
Using the formula:
(3√2)² + (3√2)² = h²
18 + 18 = h²
h = 6

The other way to do this is with trigonometric angles.
Remember cosine is adjacent over hypotenuse.
cos(45°) = (3√2) / h
h = (3√2) / cos(45°)
h = 6

4 0

3 years ago

Read 2 more answers

Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2 = –9y

Lilit [14]

No he's not correct

(3 – 6y2)(y2 + 2)
= 3(y2) -6(y2)(y2) - 6y2(2) + 3(2)
= 3y2 -6y4 - 12y2 + 6 
= -6y4 - 9y2 +6

3 0

3 years ago

If arc XV = 68° and ∠YUV = 36°, what is the measure of arc VY? A) 120° B) 130° C) 140° D) 150°

dybincka [34]

The picture in the attached figure

we have
arc XV = 68°∠YUV = 36°
we know that
The measure of the external angle is the semidifference of the arcs that it covers.
therefore
∠YUV =[arc VY-arc XV]/2

arc VY=[2*∠YUV]+arc XV----------> [2*36]+68---------> 140°

the answer is
the measure of arc VY is 140°

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Josef's closet is 5 feet wide and 3 feet deep. What is the area of his closet floor?

choli [55]

Answer:

15f^2

Step-by-step explanation:

multiply lenghtxwidth

always make sure to square your answer when doing area

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2 years ago

Help what’s the rule

solong [7]

Doubling or quadruple

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3 years ago