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Arlecino [84]
3 years ago
9

A kite is flying at the end of a 20-meter string. If the string makes an angle of 55° with the ground, how many meters above the

ground, to the nearest meter, is the kite
Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer:

Step-by-step explanation:

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S because it’s in the middle
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Solve for b.<br> 8^b-1=2^4b+4<br> b=_____
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I hope this helps you

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Find the area of a rectangular measuring 25 feet long by 8 feet wide. Show your work
Amiraneli [1.4K]
Area=length*height
Area=(25)*(8)
Area=200 feet^2
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3 years ago
I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ
kumpel [21]

Answer:

side of 6.124 ft and height of 3.674 ft

Step-by-step explanation:

Let's s be the side of the square base and h be the height of the rectangular box.

The base and the roof would have an area of s^2 and cost of

4s^2 + 2s^2 = 6s^2

The sides would have an area of 4sh and cost of 4sh*2.5 = 10sh

So the total cost for the material is

6s^2 + 10sh = 450

10sh = 450 - 6s^2

h = 45/s - 0.6s

The volume of the shed has the following formula

V = s^2h = s^2(45/s - 0.6s) = 45s - 0.6s^3

To find the maximum value for V, we can take its first derivative, and set it to 0

\frac{dV}{ds} = 45 - 1.2s^2 = 0

1.2s^2 = 45

s^2 = 45 / 1.2 = 37.5

s = \sqrt{37.5} = 6.124 ft

h = 45/s - 0.6s = 3.674 ft

4 0
4 years ago
Give the value of the expression from (a) when x=10<br> (i just need the answer for B)
Masteriza [31]

Answer:

257

General Formulas and Concepts:

Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

2x² + 5x + 7

x = 10

<u>Step 2: Evaluate</u>

  1. Substitute:                    2(10)² + 5(10) + 7
  2. Exponents:                   2(100) + 5(10) + 7
  3. Multiply:                        200 + 50 + 7
  4. Add:                              250 + 7
  5. Add:                              257
5 0
3 years ago
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