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

Jenna borrowed $5,000 for 3 years and had to pay $1,350 simple interest at the end of that time. What RATE of interest did she p

mote1985 [20]

Answer:

Simple Interest =PRT/100

Rate= I ×100/PT

=1350×100/5000×3

135000/15000

=9%

7 0

2 years ago

Sue Anne owns a medium-sized business. The probability model below describes the number of employees that may call in sick on an

Masja [62]

Answer:

The mean is $\mu = 2.1$

Step-by-step explanation:

The mean number of employees calling sick per day can be mathematically represented as

$\mu = 0* 0.05 + 1 * 0.40 + 2 * 0.3 + 3 * 0.3 + 4*0.05$

$\mu = 2.1$

4 0

3 years ago

I need help with thissss

alexandr1967 [171]

Answer:

#4 is option one 18 miles

Step-by-step explanation:

5 0

3 years ago

Which of the following can be represented by coordinates x comma y?

raketka [301]

There is not anything to use to answer with. i cannot provide any information to help since there is nothing to use

4 0

3 years ago

Read 2 more answers

WRITE Which solid has a greater volume: cone with a base radious of 7 centimeters and a height of 28 centimeters or a pyramid Wi

Mumz [18]

The pyramid has a greater volume.
The volume of the cone is 1436.7 ( to 5 sf )
The volume of the pyramid is 1437.3 ( to 5 sf )
Both of them is 1440 when rounded off to 3 sf. However , the volume of the pyramid is greater.
( so sorry I can’t explain well but I hope it helps )
The solution is in the picture:) hope you understand better!! Sorry if It’s confusing

7 0

3 years ago