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rosijanka [135]
3 years ago
8

First to help gets the brainliest, please explain how you did it?

Mathematics
1 answer:
OlgaM077 [116]3 years ago
7 0

Answer:

Perpendicular = 1

parallel = -1

Step-by-step explanation:

Parallel -  you must have the same slope, so it is -1

then, for a perpendicular line, the slope is the opposite, so 1

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In △ABC,∠B is a right angle. The coordinates for each point are A(10, 7), B(5, 9), and C(3, 4). ​ Rounded to the nearest tenth,
shepuryov [24]

Answer:

A=14.5\ units^2

Step-by-step explanation:

we know that

The area of the right triangle ABC is equal to

A=\frac{1}{2}(AB)(BC)

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have

A(10, 7), B(5, 9), and C(3, 4)

step 1

Find the distance AB

A(10, 7), B(5, 9)

substitute in the formula

d=\sqrt{(9-7)^{2}+(5-10)^{2}}

d=\sqrt{(2)^{2}+(-5)^{2}}

d_A_B=\sqrt{29}\ unjts

step 2

Find the distance BC

B(5, 9),C(3, 4)

substitute in the formula

d=\sqrt{(4-9)^{2}+(3-5)^{2}}

d=\sqrt{(-5)^{2}+(-2)^{2}}

d_B_C=\sqrt{29}\ unjts

step 3

Find the area

substitute the values

A=\frac{1}{2}(\sqrt{29})(\sqrt{29})

A=14.5\ units^2

5 0
3 years ago
reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+reee+ree
Aneli [31]

Answer:

....................

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Mr. Jackson is ordering kazoos for his second, third, and fourth grade music classes.
Alecsey [184]

Answer:

The boxes of kazoos Mr. Jackson needs to order (26 + 24 + 30) ÷ 8.

We have given that,

There are 26-second graders, 24 third graders, and 30 fourth graders.

What is the expression?

An expression, in math, is a sentence with a minimum of two numbers and at least one math operation contain in it.

The amount of kazoos needed is 1 for every student

26 + 24 + 30

Since 8 come in each box, you divide by 8  

To get your answer of (26 + 24 + 30) ÷ 8.

7 0
2 years ago
Read 2 more answers
A wrestler competes in 25 matches. One of those matches, he wins 17. What percent of the matches did the wrestler win?
PSYCHO15rus [73]

68 it think

Step-by-step explanation:

6 0
4 years ago
The ratio is 8:9 is the ratio between 0.45 - 0.60?
bagirrra123 [75]

Divide 8 by 9

8 / 9 = 0.888

0.88 is greater than 0.60 so it is not between 0.45 - 0.60

4 0
3 years ago
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