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3 years ago

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Mathematics

1 answer:

Bingel [31]3 years ago

6 0

Answer:

19.6

Step-by-step explanation:

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Paraphin [41]

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96 maybe

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3 years ago

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Estimate the unit rate to the nearest hundredth $2.35 12 Grade AA eggs.<br>

Wewaii [24]

Answer:

2.4

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3 years ago

3. A children's slide is 10 feet long and inclines 64° from the ground. The

Nata [24]

Answer:

87.0°

Step-by-step explanation:

The law of sines can be used to solve this. We have two sides of a triangle and the angle opposite one of them. We want to find the angle opposite the other known side.

In the attached, the triangle is ΔACS. We have side "a" = 9, and side "c" = 10. Angle A is given as 64°. The law of sines tells us ...

sin(C)/c = sin(A)/a

sin(C) = (c/a)sin(A)

C = arcsin((c/a)sin(A)) = arcsin(10/9·sin(64°)) ≈ 87.03°

The ladder makes an angle of about 87° with the ground.

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3 years ago

What is the greatest common factor of 18 54 and 72?

FrozenT [24]

I hope this helps you

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3 years ago

Solve each equation by either substitution or addition method.

irina [24]

Answer: (2,2), (4,2)

First, I subtracted 2y from both sides of the second equation. Then, I substituted -2y+6 in for x in the first equation (-2y+6)²+4y²=20. Then, I expanded 4y²-24y+16+4y²=20. Next, I combined like terms, and moved everything to one side 8y²-24y+16=0. Then, I factored out an 8, and then finished factoring 8(y-2)(y-1). This gives me my y-values, y=1,2. Next, I inserted each y-value into the second equation and got x=-2(1)+6 ---> x=4 (The first solution is (4,1). ) and x=-2(2)+6----->x=2 (The second solution is (2,2).

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3 years ago