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natima [27]
2 years ago
8

Solve in PEMDAS: 3 + [2 + 3 X (6 X 3)]

Mathematics
1 answer:
sladkih [1.3K]2 years ago
3 0
The answer should be 59
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Anyone who knows how to do this right please
Elan Coil [88]

Answer:

13. 9.77 inches (rounded to 3 s.f.)

14. 249m² (rounded to 3 s.f.)

Step-by-step explanation:

13. To find the arc length, the formula is the angle of the arc out of 360° multiplied by the circumference of the full circle. Circumference of circle: pi × r × 2

\frac{80}{360} × pi × 7 × 2 = 3\frac{1}{9}pi

                       = 9.77 inches (rounded to 3 s.f.)

14. To find the sector area, the formula is the angle of the sector out of 360° multiplied by the area of the full circle. Area of circle: pi × r × r

\frac{285}{360} × pi × 10 × 10 = 79\frac{1}{6}pi

                          = 249m² (rounded to 3 s.f.)

5 0
2 years ago
Can someone help me with this one please thank you
xz_007 [3.2K]

The answer is x=-7, y=8.

6 0
2 years ago
Can someone help please it would be greatly appreciated
nikklg [1K]
(y+5) =(5/4)(x-8)
4(y+5)=5(x-8)
4y+20=5x-40
5x-4y=60

Hope that helps you
4 0
2 years ago
F(x)=2x^2 find f(-3)
vekshin1

Answer:

f(- 3) = 18

Step-by-step explanation:

Substitute x = - 3 into f(x) , that is

f(- 3) = 2(- 3)² = 2(9) = 18

8 0
3 years ago
Read 2 more answers
A bank loaned out $22,500, part of it at the rate of 14% annual interest, and the rest at 2% annual interest. The total interest
prisoha [69]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
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