3 years ago

The answer for this problemAnd how to solve it

Mathematics

1 answer:

miss Akunina [59]3 years ago

3 0

Your answer would be $28.02.

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In a quiz need help ASAP

Dominik [7]

Answer:

So first you have 5(8x+3)

And then you simplify it:

5(8x)=40x

5(3)=15

And then you get 40x+15

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. A survey showed that five out of every seven students in 8th grade do their homework

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31 students do their homework every night

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2) Line segment MK has endpoints at (2, 3) and (5, ?4). Segment M'K' is the reflection of MK over the y-axis. Which statement de

Marianna [84]

Answer:

Option C -M'K' is the same length as MK

Step-by-step explanation:

Given : Line segment MK has endpoints at (2, 3) and (5,4)

M'K' is the reflection of MK over the y-axis

By definition of reflection: reflection of point (x,y) across the the y-axis is the point (-x,y)

which implies M'K' has end points (-2,3) and (-5,4)

Now, we find the length of MK

let $(x_1,y_1)=(2,3)\\\\(x_2,y_2)=(5,4)$

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

⇒ $d=\sqrt{(2-5)^2+(4-3)^2}$

⇒ $d=\sqrt{9+1}$

⇒ $d=\sqrt{10}$ ....(1)

Now, we find the length of M'K'

let $(x_1^{'},y_1^{'})=(-2,3)\\\\(x_2^{'},y_2^{'})=(-5,4)$

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

⇒ $d^{'}=\sqrt{(-2+5)^2+(3-4)^2}$

⇒ $d^{'}=\sqrt{9+1}$

⇒ $d^{'}=\sqrt{10}$ .....(2)

from (1) and (2) we simply show that the length of MK and M'K' is equal

we can also refer the figure attached for reflection of MK and M'K'

therefore, Option C is correct

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3 years ago

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A number y minus 12 is no more than −32.<br><br> The inequality is

Artyom0805 [142]

Answer:

y-12<-32

Step-by-step explanation:

just remember to underline the less than sign

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2 years ago

Any chance with 23-25?

iogann1982 [59]

This math answer is -2

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