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3 years ago

Find the slope of the line that passes through the points (-2,2) and (13,-7)

Mathematics

2 answers:

Sindrei [870]3 years ago

7 0

Slope: $\frac{-7-2}{13+2}$

-7 - 2 = -9

13 + 2 = 15

Slope = $-\frac{9}{15}$

Stolb23 [73]3 years ago

4 0

Slope is change in y over change in x.
So in this case, it would be 2- -7/-2-13 = 9/-15 = -3/5.

The answer is -3/5.

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Find the value of x ( please explainn)

Troyanec [42]

Answer:

The value of x is 62°.

Step-by-step explanation:

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6 0

3 years ago

A model of a soccer ball is made up of regular pentagons and hexagons.

Monica [59]

An apothem is a line from the center of a regular polygon at right angles to any of its sides.

For part A,

We want to find area of pentagon (5 sided figure) given apothem is 1.38 in and side length as 2 inch.

If we look at the picture shown (attached), we can see that a triangle is formed. What is the area of this triangle?

$A=0.5bh\\A=0.5(1)(1.38)\\A=0.69$ square inches

How many such triangles are there in a pentagon? 10. So we multiply 0.69 by 10 to get total area of pentagon.

Area of Pentagon = $0.69*10=6.9$ square inches.

For part B,

We want to find area of hexagon (6 sided figure) given apothem is 1.73 in and side length as 2 inch.

If we look at the picture shown (attached), we can see that a triangle is formed. What is the area of this triangle?

$A=0.5bh\\A=0.5(1)(1.73)\\A=0.865$ square inches

How many such triangles are there in a hexagon? 12. So we multiply 0.865 by 12 to get total area of hexagon.

Area of Hexagon = $0.865*12=10.4$ square inches.

ANSWER:

Area of Pentagon is 6.9 square inches.

Area of Hexagon is 10.4 square inches.

5 0

3 years ago

If 3/4 of the class likes soda and 3/5 of those who like soda prefer Coke, what PERCENT of the whole class that likes Coke?

katen-ka-za [31]

Answer:

For soda =3/4

For coke= 3/5 X 3/4=9/20

Whole class is 1....

Therefore X% of 1 =9/20

Solving :

X/100 X 1 =9/20

X/100=9/20

20X =900

X= 900/20 = 45%

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3 years ago

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stiks02 [169]

Convert them to have the same denominator then subtract

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3 years ago

Apple cost $0.89 pound how much will 25 pounds cost

AfilCa [17]

22.25

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4 years ago

Read 2 more answers