Ask question

Ask question

All categories

3 years ago

7

The angle of depression from the top of a cliff to an ant on the ground is 35 degrees. If the ant is 280 ft from the base of the

cliff, how tall is the cliff?

1 answer:

Burka [1]3 years ago

5 0

Answer: 315

Step-by-step explanation: hope this is right.

You might be interested in

8% of 70 is what number? (please explain)

Bingel [31]

Do a proportion
8/100= x/70
Cross multiply and divide
70 x 8= 560
560 divided by 100= 5.6
Answer is 5.6

You also could have done .08 x 70 which is also 5.6

7 0

3 years ago

Which shows the correct substitution of the values a, b, and c from the equation 0 = 4x2 + 2x – 1 into the quadratic formula bel

neonofarm [45]

Answer:

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^2+bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^2-4ac} }{2a}$

in this problem we have

$4x^2 + 2x - 1=0$

so

$a=4$

$b=2$

$c=-1$

substitute in the formula

$x=\frac{-2(+/-)\sqrt{2^2-4(4)(-1)} }{2(4)}$

therefore

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

8 0

2 years ago

Read 2 more answers

Please help math thank you

Alina [70]

a: 30

b:40

c:78

d:36

e:20

f:96

5 0

4 years ago

Read 2 more answers

Brent and Lance leave a park on bicycles traveling at constant rates in opposite directions. After 2.5 hours, they are 85 miles

stealth61 [152]

Answer:

18 mph so B is correct 16+2= 18

8 0

3 years ago

Read 2 more answers

What is the surface area, in square centimeters, of the rectangular prism below?

german

Answer: A. 724

Step-by-step explanation:

4 0

4 years ago