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Ivanshal [37]
3 years ago
11

Math question is attached below and please provide the right answer and show your work.

Mathematics
2 answers:
Andrews [41]3 years ago
4 0
14 units, do 3.14•9 then divide by 2
deff fn [24]3 years ago
3 0

Answer:

V=37.68 \text{ units}^3

Step-by-step explanation:

$V=\frac{\pi r^2 h}{3} $

$V=\frac{3.14 \cdot 2^2 \cdot 9}{3} $

$V=\frac{3.14 \cdot 36}{3} $

$V=3.14 \cdot 12 $

V=37.68 \text{ units}^3

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Step-by-step explanation:

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2 years ago
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
How can I find the x value?<br>How can I explain it?<br><br>PLEASE ANSWER THE QUESTION!!!
Jlenok [28]
Answer:

Step-by-step explanation:
Discussion
What you have presented is called a cyclic quadrilateral. A cyclic quadrilateral is a 4 sided figure whose angles (4 of them) all touch the circumference of a circle.

Here's what you want to know. Two angles that are opposite each other are supplementary (they add to 180 degrees)

Equation
x + 80 = 180 Subtract 80 from both sides.

Solution
x + 80 - 80 = 180 - 80 Combine
x = 100

Answer
x = 100

8 0
1 year ago
Given the following perfect square trinomial, fill in the missing term<br> 4x2 + ___x + 49
Arisa [49]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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Aneli [31]

Since all of the side lengths are different, it is a scalene triangle

5 0
3 years ago
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