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Valentin [98]
2 years ago
11

I need help with 2 more of the highlighted questions

Mathematics
1 answer:
Gennadij [26K]2 years ago
4 0
14. the length of the arc is found by using the formula 2*PI*r*angle/360
  the circle has a radius of 2 and the known angle is 90 degrees
 so you now have: 2 * pi * 2 * 90/360, since the answer needs to be in terms of PI, remove pi from the equation for now:
2*2 *90/*360 = 1
 the arc length = 1PI, or just PI

16. the area of the parallelogram is L x W :  9 *6 = 54
     the area of the circle is: PI *r^2 = pi * 3^2 = 28.26
 area of shaded region is subtracting the area of the circle from the parallelogram: 54 - 28.26 = 25.74 square inches



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Eddi Din [679]

Answer:  1/6

Step-by-step explanation:

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2 years ago
How many centimeters are in 3.2 inches? [1 inch = 2.5 cm]
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There are about 8cm in 3.2 inches
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A degree 4 polynomial P(x) with integer coefficients has zeros 5 i and 3, with 3 being a zero of multiplicity 2. Moreover, the c
Sergio039 [100]

Multiplicity is how many times the root repeats

roots r1 and r2 of a polynomial factor to

(x-r1)(x-r2)

so 3 multiplicty 2 means (x-3)^2 is in the factorization of that polynomial


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6 0
3 years ago
1. Use the image of the circle to identify the length of the radius, diameter, and circumference. Leave all answers in terms of
Grace [21]

Answer:

Radius =  r = 7.5

Diameter = d = 15

Circumference = C = 15π

Step-by-step explanation:

We are given the image of a circle with a straight line passing through the center of the circle and touching its edges. Such a line is known as the diameter of the circle. From the image we can see the length of the diameter of the circle is d = 15 units.

Radius is define as half of the diameter. Since the diameter is 15 units, the radius of the given circle will be half of 15 which is r = 7.5 units.

Circumference of the circle = C = 2πr

Using the value of radius(r), we can write the circumference as:

C = 2π(7.5) = 15π

5 0
2 years ago
What is the solution to the equation? r/7.1=4.2
sweet [91]

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Step-by-step explanation:

0.5x + 4.2 = 5.9 \\ 0.5x = 5.9 - 4.2 \\ 0.5x = 1.7 \\ x = 1.7 \div 0.5 \\

3 0
3 years ago
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