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erastovalidia [21]
3 years ago
5

(25 Points) The measure of b is ______?

Mathematics
2 answers:
Eva8 [605]3 years ago
6 0

Answer:

21

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 +b^2 = c^2

where a and b are the legs and c is the hypotenuse (opposite the right angle)

20^2 +b^2 = 29^2

400 + b^2 =841

Subtract 400 from each side

400-400 +b^2 = 841-400

b^2 = 441

Take the square root of each side

sqrt(b^2) = sqrt(441)

b = 21

Levart [38]3 years ago
3 0

Answer:

21

Step-by-step explanation:

You have a right triangle, so you can use the Pythagorean theorem, where <em>a</em> and <em>b</em> are the lengths of the legs, and <em>c</em> is the length of the hypotenuse.

<em>a^2 + b^2 = c^2</em>

<em>20^2 + b^2 = 29^2</em>

<em>400 + b^2 = 841</em>

<em>b^2 = 841 - 400</em>

<em>b^2 = 441</em>

<em>b = 21</em>

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lana66690 [7]

Answer:

length=4\ cm\\width=6\ cm

Step-by-step explanation:

Given the rectangular poster shown in the picture, you know that its dimensions (its width and its lenght) are:

w_1=24\ cm\\l_1=16\ cm

In order to calculate the dimensions of the rectangular  at \frac{1}{4} times its current size, you need to multiply the original lenght by \frac{1}{4} and multiply the original width by \frac{1}{4}.

Knowing this, you get:

w_2=w_1\frac{1}{4}\\\\w_2=(24\ cm)(\frac{1}{4})\\\\w_2=6\ cm\\\\\\l_2=l_1\frac{1}{4}\\\\l_2=(16\ cm)(\frac{1}{4})\\\\l_2=4\ cm

6 0
3 years ago
Write the following equation in slope-intercept form: 3x+4y=12
Sergeeva-Olga [200]
Hello, MissMisty here to help you. 

<span>• </span>The answer • 
Y = -3/4 + 3

Thanks! I hope it helped you, I'm glad I could help if it did. Have a good morning.
8 0
3 years ago
Almost there, then everything is set! Thanks guys
faust18 [17]

Answer:

x = 50°

Step-by-step explanation:

Step 1.

180° - 80° (because there are 180 degrees in a triangle) = 100°

Step 2.

100° ÷ 2 = 50° (because the two angles on the bottom are identical, as this is an isosceles triangle - which we know because the two sides on the left and right are both the same length, 7 units)

Step 3.

Answer: x = 50°

5 0
3 years ago
25 is 45% of what number
Oksi-84 [34.3K]

Answer: 55.56

Step-by-step explanation:

Let the unknown number be k

(45 x k) / 100 = 25

45k/100 = 25

multiply both sides by 100

45k = 25 x 100

45k = 2500

divide both sides by 45

k = 2500/45

k = 55.56

6 0
3 years ago
How can the logarithmic expression be rewritten?
andrey2020 [161]
False
True
True.

I think?
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2 years ago
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