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3 years ago

Help me please is it (a) (B) (C) (D) Thank you

Mathematics

2 answers:

stepan [7]3 years ago

7 0

The answer should be b

grin007 [14]3 years ago

5 0

You can just add

the answer is most likely to be B

hope this help

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Please help. Sine and Cosine rules

kodGreya [7K]

Answer:

a=41.8 BC=2.8

Step-by-step explanation:

sin30/6=sinx/8

8*sin30=6sinx

4=6sinx

sin^-1(4/6)

angle a

cosine rule

bc^2=3^2 +5^2-2(3)(5)*cos30

BC^2= $\sqrt8.019237886\\$

BC=2.83

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3 years ago

A prism is completely filled with 96 cubes that have edge length of 1/2 cm.

ch4aika [34]

I know this is kinda late, but...

You can solve this easily as long as you remember how to find the volume of a cube. v=a^3, when a means length. The length is 1/2 cm, or .5 cm.
So, v+.5^3, which equals .125 cm. Each cube has a that volume. Now, multiply that by how many actual cubes there are, 96.

96 * .125 = 12

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3 years ago

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My calculator is dead and I don't have a charger any one willing to help I'll return

12345 [234]

I feel like you just want the answers right now. Tell me later if u want explanations.

1. D 2. J 3. B 4. F 5. D 6. G 7. B 8. J 9. B 10. G

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3 years ago

A city is planning to add a fish pond to a neighborhood park. The figure below is a scale drawing of the fish pond. It’s scale i

mezya [45]

Total area = 2,250 ft + 706.50 ft = 2,956.50 ft. pretty sure that’s the answer.

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3 years ago

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Please help! Will mark Brainiest!

DochEvi [55]

Answer:

27.93 square yard

Step-by-step explanation:

For semicircle:

Radius (r) = 7 yards

For Triangle:

b = 2r = 2*7 = 14 yd

h = 7 yard

Area of shaded region = Area of semicircle - Area of triangle

$= \frac{1}{2} \times \pi {r}^{2} - \frac{1}{2} \times b \times h \\ \\ = \frac{1}{2} \times 3.14 \times {7}^{2} - \frac{1}{2} \times 14\times 7 \\ \\ = \frac{1}{2} \times 3.14 \times 49 - \frac{1}{2} \times 98\\ \\ = 3.14 \times 24.5 - 49 \\ \\ = 76.93 - 49 \\ \\ = 27.93 \: {yd}^{2} \\$

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3 years ago