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murzikaleks [220]

3 years ago

13

For triangle ABC, m( ∠ A) = 50° and m( ∠ B)= 20°. Which of the following lists the sides of the triangle from shortest to longes

t?

1 answer:

Travka [436]3 years ago

4 0

Answer:

Step-by-step explanation:

the side with the biggest angel across form it has the longest side

the unknown angle would be 180-50-20=110

so it would go 20,50,110

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What is the perimeter of a triangle with the side lengths of 2, 5, and 10x?

olga55 [171]

The perimeter of a triangle with length of sides a, b and c:

P = a + b + c

a = 2, b = 5, c = 10x

Substitute:

P = 2 + 5 + 10x = 7 + 10x

<h3>Answer: 7 + 10x</h3>

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3 years ago

Which of the following is a factor if 4x^2 - 4x - 3?

Svetradugi [14.3K]

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c

Step-by-step explanation:

6 0

2 years ago

The perimeter of the rectangle is 28 units.

kakasveta [241]

Answer:

5 units

Step-by-step explanation:

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8 0

3 years ago

Andrew is buying three different colors of tiles for his kitchen floor. he is buying 50 more purple tiles than black tiles, and

lorasvet [3.4K]

- Key -

Black tiles = x
Purple tiles = x+50
Yellow tiles = 5x

-

Total = x + x+50 + 5x = 400
⇒ 7x + 50 = 400
⇒ 7x = 400-50 = 350
⇒ x = 350/7
⇒ x = 50

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4 0

3 years ago

In ΔWXY, x = 680 inches, w = 900 inches and ∠W=157°. Find all possible values of ∠X, to the nearest degree.

ikadub [295]

Given:

In ΔWXY, x = 680 inches, w = 900 inches and ∠W=157°.

To find:

The all possible values of ∠X, to the nearest degree.

Solution:

Law of Sines:

$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$

For ΔWXY,

$\dfrac{w}{\sin W}=\dfrac{x}{\sin X}=\dfrac{y}{\sin Y}$

Now,

$\dfrac{w}{\sin W}=\dfrac{x}{\sin X}$

$\dfrac{900}{\sin (157^\circ)}=\dfrac{680}{\sin X}$

$900\sin X=680\sin (157^\circ)$

$\sin X=\dfrac{680}{900}\sin (157^\circ)$

$\sin X=0.295219$

$X=\sin^{-1}(0.295219)$

$X=17.17067$

$X\approx 17$

Therefore, the value of ∠X is 17 degrees.

5 0

3 years ago