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4 years ago

Solve 300 xq+n for x 10 POINTS! PLEASE ANSWER HONESTLY!!! i will report if u don’t!

Mathematics

2 answers:

viva [34]4 years ago

7 0

X= n + 300
----------------
q

tamaranim1 [39]4 years ago

4 0

You can't just report people if they are wrong. People make mistakes.

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Solve the system of equations y=x-4, y=-3x

abruzzese [7]

Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1

5 0

3 years ago

The curved part of this figures is a semicircle.

vovangra [49]

First we join the two endpoints of the semicircle and that will be the diameter.

And to find the length of the diameter, we have to use distance formula, with one endpoint (3,2) and the other is (-4,-2) .

SO we get

$Diameter = \sqrt{ {-4-3)^2 +(-2-2)^2 } = \sqrt{49+16} = \sqrt 65$

Radius is half of diameter, so the radius is

$Radius= \frac{ \sqrt{65}}{2}$

Formula of area of circle is

$Area = \pi r^2$

So the area of semicircle is

$=(1/2) \pi ( \frac{ \sqrt{65}}{2})^2 = 8.125 \pi \square \units$

And the other figure is a triangle, with

$Base = 3-(-4)=3+4=7 \\ height = 2-(-2) = 2+2 =4$

$Area = (1/2)*4*7= 14 square units$

Therefore, total area is the sum of area of semicircle and area of triangle,

And we will get

$Total \ area= 14 + 8.125 \pi \ units^2$

Correct option is the third option .

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3 years ago

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A group of students were surveyed to find out if they like building snowmen or skiing as a winter activity. The results of the s

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Answer:

The answer could be easier if you make a ratio and actual graph

Step-by-step explanation:

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75% students out of 80 are present in a test , the students absent are :

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Answer:

20 students are absent

Step-by-step explanation:

75/100 × 80 = 60

If 60 were present out of the 80

80 - 60 = 20

Have a great day :)

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3 years ago

The total arm and blade of a windshield wiper is 12 in. long and rotates back and forth through an angle of 85°. The shaded regi

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Answer:

Step-by-step explanation:

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