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zhannawk [14.2K]
3 years ago
8

Battery wholesale produces 5,200 batteries of those batteries 8 percent of them defective how many batteries are not defective

Mathematics
1 answer:
Veronika [31]3 years ago
3 0

Answer:

4,784

Step-by-step explanation:

Find how many are defective

Convert 8% to a decimal

8/100=0.08

Multiply

5,200*0.08=416

416 are defective, to find how many aren't subtract the defective from the whole

5,200-416=4784

So, 4,784 are not defective

Hope this helps! :)

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Verdich [7]

Answer:

SA =64 pi units ^2

Step-by-step explanation:

The surface area of a sphere is given by

SA = 4 pi r^2

SA = 4 * pi * 4^2

SA =64 pi

SA =200.96

7 0
3 years ago
1. Isaiah and Ron work together on their
makkiz [27]

Answer:

Step-by-step explanation:

They are equivalent.  Use the distributive property.

3(x+3)

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5 0
3 years ago
A+B= -7 and AXB= -15
ZanzabumX [31]
A+b=-7
ab=-15

a=-7-b
b(-7-b)=-15

a=-7-b
-b^2-7b+15=0

a=-7-b
b^2+7b-15=0

a=-7-b
b=(-7±sqrt(109))/2
1) 
a=-7-b
b=(-7+sqrt(109))/2

b=(-7+sqrt(109))/2
a=-7+3.5-sqrt(109)/2

b=(-7+sqrt(109))/2
a=-3.5-sqrt(109)/2

2)
a=-7-b
b=(-7-sqrt(109))/2

b=(-7-sqrt(109))/2
a=-7+3.5+sqrt(109)/2

b=(-7-sqrt(109))/2
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7 0
3 years ago
Give at least five problems solving about area of a sector of a circle.
Katyanochek1 [597]

See below for the examples of sectors and arcs of a circle

<h3>Area of sector of a circle</h3>

The area of a sector is calculated as:

A = \frac{\theta}{360} * \pi r^2 ---- when the angle is in degrees

A = \frac{\theta}{2} *r^2 ---- when the angle is in radians

Take for instance, we have the following problems involving sector areas

Calculate the area of a sector where the radius of the circle is 7, and

  1. The central angle is 30 degrees
  2. The central angle is π/12 rad
  3. The central angle is 90 degrees
  4. The central angle is π/4 rad
  5. The central angle is 180 degrees

Using the above formulas, the sector areas are:

1. A = \frac{30}{360}* \frac{22}{7} * 7^2 = 12.83

2.  A = \frac{\pi}{12} * 7^2 = 12.83

3. A = \frac{90}{360}* \frac{22}{7} * 7^2 = 38.5

4. A = \frac{\pi}{2} * 7^2 = 38.5

5. A = \frac{180}{360}* \frac{22}{7} * 7^2 = 77

<h3>Examples of arc length</h3>

The length of an arc is calculated as:

L= \frac{\theta}{360} * 2\pi r ---- when the angle is in degrees

L = r\theta ---- when the angle is in radians

Take for instance, we have the following problems involving arc lengths

Calculate the length of an arc where the radius of the circle is 7, and

  1. The central angle is 30 degrees
  2. The central angle is π/12 rad
  3. The central angle is 90 degrees
  4. The central angle is π/4 rad
  5. The central angle is 180 degrees

Using the above formulas, the arc lengths are:

1. L = \frac{30}{360}* 2 * \frac{22}{7} * 7 = 3.7

2.  L = \frac{\pi}{12} * 7 = 3.7

3. L = \frac{90}{360}*2 * \frac{22}{7} * 7 = 11.0

4. L = \frac{\pi}{4} * 7 = 11

5. L = \frac{180}{360}*2 * \frac{22}{7} * 7 = 22

<h3>Examples of the arcs of a circle</h3>

The examples include:

  • A parabolic path
  • Distance in a curve
  • Curved bridges
  • Pizza
  • Bows

Read more about arc and sectors at:

brainly.com/question/15955580

#SPJ1

5 0
2 years ago
Plz help !!!!!!!!!!!!!!!!!!!!!!
NNADVOKAT [17]

Answer:

Step-by-step explanation:

x^2 + 7x + 5x + 35

7x : II

5x: III

35: IV

7 0
3 years ago
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