3 years ago

In ΔBCD, the measure of ∠D=90°, the measure of ∠B=71°, and DB = 67 feet. Find the length of BC to the nearest tenth of a foot.

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

8 0

Answer:

in triangle BCD

relationship between base and hypotenuse is given by cos angle

cos 71=b/h

cos71=BD/BC

cos71=67/x

x=67/cos71=205.8ft.

the length of BC to the nearest tenth of a foot is 206ft.

You might be interested in

Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable

Serga [27]

20-2.3=17.7 what don't you understand?

20-2= 18 

18-.3=17.7
its reasonable because if you do the calculation, 17.7 is the answer
HOPE HELPED:D
this is 5th grade,lol

3 0

3 years ago

Y=(x-k)^3 and y=x^3 will these two graphs ever concide

s344n2d4d5 [400]

Answer: this is the awnser

Step-by-step explanation:

5 0

3 years ago

How did he get from 3^-16/3/3^-8/3 to 0.00285333857/0.00285333857??? (The circled part) Because when I put it in the calculator

seropon [69]

Step-by-step explanation:

$\frac{ {3}^{ - \frac{16}{ 3} } }{ {3}^{ - \frac{ 8}{3} } } = \frac{0.002853338}{0.05341665075}$

I think, he made a mistake because the exponents have different values but then if you'll look at his results, he just wrote the same thing. If you want, you could post the original problem, and I'll solve it for you :)

7 0

2 years ago

Given the geometric sequence where a1 = 3 and the common ratio is −1, what is the domain for n?

liubo4ka [24]

All integres n >= 1

Its D

4 0

3 years ago

Read 2 more answers

Can anyone help I keep getting it wrong

ivann1987 [24]

Answer:

Step-by-step explanation:

8 0

3 years ago