abdubasheer abdubasheer

20-11-2017
Mathematics

contestada

Solve for x and y. Round to the nearest tenth if necessary.

A.
x=30, y=6.4

B.
x=15, y=7.2

C.
x=15, y=6.4

D.
x=30, y=8.1

Solve for x and y Round to the nearest tenth if necessary A x30 y64 B x15 y72 C x15 y64 D x30 y81 class=

Respuesta :

wolf1728 wolf1728

20-11-2017

4x + 2x = 90
x = 15

Tan (AngleA = 60) = y / 5
y = 1.7321 * 5
y = 8.6603

It seems the answer is D (though y = 8.66 and NOT 8.1)

DOUBLE-CHECK
That is a 30 60 90 triangle and 2 * shrt side = long side (AB)
so, y^2 = 10^2 -5^2
y^2 = 75
y = 8.66

So, it seems the answer is D

Answer Link

Otras preguntas

If you consider The Call of the Wild to be an allegory, which one of the following statements would be true? a. Judge Miller represents the primordial conditio

All of the following statements are true about friends EXCEPT: a. The desire to make friends can affect self-esteem. b. Supportive interactions with friends i

in which body of water with mangroves most likely be found

The language of informal speech is called _____. dialogue slang vernacular

Ancient Greek civilization was located on one contiguous body of land, north of the Aegean Sea. a. True b. False

The taking out of material that may offend others is called _____. a. media b. censorship c. containment d. the credibility gap

Because they help improve healing, aid in recovery after exercise, and reduce the risk of cancer, it s important to eat at least 1 cups of _______ per day. a.

help me please. I have tried so hard and I need help.

what multiplies to 0 and adds to 8

Which of the following was an advantage held by the Patriots during the Revolutionary War? A. Skilled military leader B. A larger population C. Well trained and