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3 years ago

Triangle ABC maps to triangle A′B′C′ by a 90∘ rotation counterclockwise about the origin.

Mathematics

1 answer:

Tresset [83]3 years ago

7 0

The answer is 90 units hope this helps

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What is the length of LM if L(3,4) and M(1,-2)? Round to the nearest tenth.

kari74 [83]

Answer:

We conclude that the length of LM if L(3,4) and M(1,-2) will be:

$d = 6.3$

Hence, option D is correct.

Step-by-step explanation:

Given

L(3,4)

M(1,-2)

Determining the length of LM

(x₁, y₁) = (3, 4)

(x₂, y₂) = (1, -2)

The length of the distance between (x₁, y₁) and (x₂, y₂) can be determined using the formula

$d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

substituting (x₁, y₁) = (3, 4) and (x₂, y₂) = (1, -2)

$=\sqrt{\left(1-3\right)^2+\left(-2-4\right)^2}$

$=\sqrt{2^2+6^2}$

$=\sqrt{4+36}$

$=\sqrt{40}$

$=\sqrt{4\times 10}$

$=\sqrt{2^2\times \:10}$

$=2\sqrt{10}$

$=6.3$

Therefore, we conclude that the length of LM if L(3,4) and M(1,-2) will be:

$d = 6.3$

Hence, option D is correct.

5 0

3 years ago

Can someone help me with this problem?

masya89 [10]

5/7, I don't know what that is as a decimal, but I hope it helps

5 0

3 years ago

Read 2 more answers

What is 0.045 in percentage form

sveticcg [70]

4.5% because it is 4.5% out of 100%

4 0

4 years ago

Read 2 more answers

19) Maylin played tennis last year and played in 15 matches with each match being about 125

balu736 [363]

Answer:

1,875 minutes

Step-by-step explanation:

to find out you need to multiply 125x15

5 0

2 years ago

A vender sold a combined total of 131 sodas and hot dogs. The number of hot dogs sold was 31 less than the number of sodas sold.

puteri [66]

Answer:

81 sodas and 50 hotdogs

Step-by-step explanation:

131 = x + x - 31

131 + 31 = x + x - 31 + 31

162 = x + x

x = 81

131 = 81 + (81 - 31)

131 = 81 sodas + 50 hot dogs

5 0

3 years ago