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FromTheMoon [43]
3 years ago
11

I don't understand how to solve this please help

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
PI x r^2 is the equation for the area of a circle. Clearly, we have 3 quarters of a circle here, so we can divide our answer by 4 and then multiply it by 3.

PI x 10^3 = 314.159...

Divide by 4 = 78.540...

Multiply by 3 = 235.619...


Therefore the answer is the third one.
I am Lyosha [343]3 years ago
3 0
Area=pi x radius squared so (3.14)(10)squared = 314
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Please please help me!!!!!
Maru [420]

Answer:

(12, 487)

Step-by-step explanation:

y = 3.7x + 442 ----› Eqn. 1

y = 14.4x + 312 ----› Eqn. 2

Substitute y = (3.7x + 442) into eqn. 2.

y = 14.4x + 312 ----› Eqn. 2

3.7x + 442 = 14.4x + 312

Collect like terms

3.7x - 14.4x = -442 + 312

-10.7x = -130

Divide both sides by -10.7

x = 12.1495327

Substitute x = 12.1495327 into eqn. 1.

y = 3.7x + 442 ----› Eqn. 1

y = 3.7(12.1495327) + 442

y = 486.953271

The solution to the system is rounded to the nearest integer:

(12, 487)

7 0
3 years ago
4. A helicopter pilot sights a landmark at an angle of depression of 22°. The altitude of the helicopter is 1450
tigry1 [53]

Answer:

3589 feet

Step-by-step explanation:

The horizontal distance from the helicopter to the landmark is 3589 feet.

8 0
4 years ago
There were 26 people at Charlotte and Oliver's birthday party. The total cost of the party was $1,429.74. How much did each pers
Nutka1998 [239]

Answer:

$54.99/person

Step-by-step explanation:

Divide '26 persons' into the total cost $1,429.74:  we get $54.99/person.

3 0
3 years ago
A recipe for orange water says, “Mix 3 teaspoons yellow water with 1 teaspoon red water.” For this recipe, we might say: “The ra
Ivahew [28]

Answer:6:2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
"10 subtracted from a number is 15."
inessss [21]

Answer:

25

Step-by-step explanation:

25 - 10 = 15.

5 0
3 years ago
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