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2 years ago

HELP ME PLZZ I NEED HELP WITH THIS !!

Mathematics

2 answers:

snow_lady [41]2 years ago

8 0

Answer: D. 18+(-7)

Hope this helps!

dimaraw [331]2 years ago

7 0

Answer:

The answer is D. 18 + (-7)

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What is the exact area and arc length of these sectors? Please helppp

Karolina [17]

Answers with step-by-step explanation:

1. Area of sector 1 = $\frac{90}{360} \times \pi \times 12^2 = 36\pi$

2. Area of sector 2 = $\frac{45}{360} \times \pi \times 19^2 = \frac{2527}{8} \pi$

3. Area of sector 3 = $\frac{270}{360} \times \pi \times 15^2 = \frac{675}{4} \pi$

4. Area of sector 4 = $\frac{270}{360} \times \pi \times 6^2 = 27 \pi$

5. Arc length of sector 1 = $\frac{90}{360} \times 2 \times \pi \times 12 = 6\pi$

6. Arc length of sector 2 = $\frac{315}{360} \times 2 \times \pi \times 19 = \frac{133}{4} \pi$

7. Arc length of sector 3 = $\frac{270}{360} \times 2 \times \pi \times 15 = \frac{45}{2}\pi$

8. Arc length of sector 4 = $\frac{270}{360} \times 2 \times \pi \times 6 = 9\pi$

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2 years ago

How do you do question number 5? If you do it can you please explain how to do it? Thank you!!

erik [133]

F(-3) = 4(-3) - 3 = -12 - 3 = -15.
H(2) = -5(2) + 7 = -10 + 7 = -3.

F(-3) + H(2) = -15 + -3 = -18.

The solution is -18.

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3 years ago

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alekssr [168]

Answer:

14.625

Step-by-step explanation:

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3 years ago

Mary says the pen for her horse is an acute right triangle. Is this possible? Explain.

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Mary means it's a right triangle and therefore the other two angles are acute, if the two angles are congruent then it's an isosceles right triangle. if not the same it's a scalene right triangle Mary has to know when classify triangles by angle measure it has to be one type of angle either a right, acute or obtuse by sides isosceles and scalene Hope this helps

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