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2 years ago

Whats the answer to this???

Mathematics

1 answer:

Leno4ka [110]2 years ago

8 0

Measure angle EFG = 15 degrees
Measure angle GFH = 15 degrees

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(4x5 + 9x3 - 12x8) + (8x3 - 7x + 2x5)

SSSSS [86.1K]

Answer:

-10x5 + 8x4 - 7x3 - 20x2 - x + 18

Step-by-step explanation:

8 0

2 years ago

Share £880 into the ratio of 3:1

Shkiper50 [21]

Answer:

1/880

Step-by-step explanation:

4 0

2 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

3 years ago

Let f(x) = x2 - x + 7 and g(x)= - 3x + 6. Find g(9) and f(g(9)).<br> 9(9)=(Simplify your answer.)

aleksklad [387]

Step-by-step explanation:

see the picture

maybe i am right or wrong i have juat tried

6 0

3 years ago

(5 organisms that live in your house. Identify them and tell me how they interact within the environment and with each other.

lubasha [3.4K]

List five living things in your house (people, animals, plants) and how they interact.

Example: Me, mom, dad, plant, dog. Me and my mom talk and I help her. Same with me and my dad. They both help me. All three of us water and take care of the plant. We play with the dog, feed him, and walk him. The dog sometimes plays with the leaves on the plant.

(I hope this gives you an idea)

4 0

2 years ago