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AlladinOne [14]
3 years ago
10

I NEED HELP PLEASE!

Mathematics
1 answer:
faltersainse [42]3 years ago
5 0
Figures A, B, and C. The reason is because a polygon is a shape that has straight lines. A, B, and C are made up of straight lines. Figure D has curves at the corners, so that is not considered a polygon.
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Lasy year, Kristen read a total of 30 fiction and non-fiction books. The number of non-fiction books was 5 less than 4 times the
Simora [160]

Answer:

  • 7 fiction books
  • 23 non-fiction books

Step-by-step explanation:

The number of non-fiction read was 5 less than 4 times the number of fiction books.

Assume fiction books are x.

An equation representing this would be:

x + (4x - 5) = 30

5x - 5 = 30

5x = 30 + 5

x = 35 / 5

x = 7 fiction books

Non-fiction books:

= 4x - 5

= 4 * 7 - 5

= 23 non - fiction books

4 0
3 years ago
(2y + 9)(3y - 1) = 5y2 + 25y - 9
Vikki [24]

Answer:

y1= 0, y2= 5/3

Step-by-step explanation:

Remove the parentheses and multiply

then cancel the equal terms

collect the lie terms

move the variables to one side

divide both sides by two

split into possible cases

then solve the equation to get

y= 0 and

y= 5/3

7 0
3 years ago
Compute the conditional probabilities P(A|B) and P(B|A).
Oksanka [162]

Answer:

Step-by-step explanation:

Good evening ,

P(A|B) = P(A∩B)/P(B)

P(B|A) = P(A∩B)/P(A)

:)

6 0
3 years ago
The value of the surface area of the cylinder is equal to the value of the volume of the cylinder. Find the value of x
Slav-nsk [51]

pi·(7.2/2)^2·x = 2·pi·(7.2/2)^2 + 2·pi·(7.2/2)·x

x = 4.5 = 4 1/2

O = V = 1458/25·pi = 58.32·pi

3 0
3 years ago
Read 2 more answers
Fill in the blanks with the answer to each question based on information provided.Two toy robots are having a race. Robot A can
GalinKa [24]

Answer:

  1. 1 1/14 seconds
  2. 4 2/7 seconds

Step-by-step explanation:

We are being asked for times, so we can express the rate in terms of seconds per meter.

  (15 seconds)/(14 meters) = (15/14) seconds per meter = 1 1/14 seconds/meter

__

1) It will take Robot A 1 1/14 seconds to go 1 meter.

2) it will take Robot A 4 2/7 seconds to go 4 meters. (4 times as long)

5 0
2 years ago
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