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3 years ago

Help please problem is worded weird

Mathematics

2 answers:

Vadim26 [7]3 years ago

5 0

Answer:100

Step-by-step explanation:

Expand

x = 150 - 0.5x

Add 0.5x to both sides

x + 0.5x = 150

Simplify x + 0.5x to 1.5x

1.5x = 150

Divide both sides by 1.5

x = 150/1.5

Simplify 150/1.5 to 100

x = 100

LenaWriter [7]3 years ago

5 0

Answer: the correct awnser is 100

Step-by-step explanation:

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What angles do perpendicular lines form

Natasha2012 [34]

Answer:

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4 years ago

Please I need your help on this.

just olya [345]

Answer:

the answer is 7 7/8

Step-by-step explanation:

1. you will need to change the fractions into an improper fraction.

2. you need to then multiply the numerator and denominator to get a 63/8

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3 years ago

If A(3,4) and B(10,4) are the end points of a diameter of circle "O", what is the area of the circle O

ikadub [295]

Answer:

$\large\boxed{\dfrac{49\pi}{4}}$

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the endpoints of a diameter of a circle.

The formula of a distance between two points:

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

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

$d=\sqrt{(10-3)^2+(4-4)^2}=\sqrt{7^2+0^2}=\sqrt{7^2}=7$

Therefore we have the length of the diameter: d = 7

We know: d = 2r. Therefore

$r=\dfrac{7}{2}$

Substitute to the formula of an area:

$A=\pi\left(\dfrac{7}{2}\right)^2=\dfrac{49\pi}{4}$

There is no such answer in the answers to choose.

Apparently you have some error in the coordinates of the endpoints.

8 0

3 years ago

What is 320/11 pls help

lora16 [44]

Answer:

= 29.09

thats the answer

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3 years ago

Robert randomly surveyed 10 ninth-grade students at Lincoln High School to determine their favorite color. Of the 10 students su

stich3 [128]

Answer:

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Step-by-step explanation:

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4 years ago