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3 years ago

Question 2: SQUARE ROOTS

Mathematics

1 answer:

kifflom [539]3 years ago

3 0

Answer:

A) 15 and 16

Step-by-step explanation:

The square root of 250 is 15.8, so it falls between:

15 and 16

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Hello I need help on this math question

Zigmanuir [339]

Answer:

$50.24\ cm ^2$

Step-by-step explanation:

Let's start by finding the radius of this circle.

$D=2r\\8=2r\\\text{Divide both sides by 2}\\r=4$

Note that in the equation:

$A=\pi r^2$

"A" stands for area and "r" stands for radius.

Now, let's substitute the given values into the equation.

$A=\pi r^2\\A=3.14*(4)^2\\A=3.14*16\\A=50.24\ cm^2$

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2 years ago

Sandra walked to the top of a hill at a speed of 2 km/h, turn around and walked down the hill at a rate of 4 km/h. the whole tri

hichkok12 [17]

D is distance.
d/2 + d/4 = 6 
3d/4 = 6 
d = 8 km 

Check: at 2 k/h, 4 hours; 
at 4 k/h, 2 hours; 
total, 6 hours. hope i helped

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3 years ago

Cesar has read 89 pages of a book for his

slega [8]

Answer:

X=8

Step-by-step explanation:

First subtract the read pages with the unread pages which is 168.

Then let 21 pages = to one hour then 168pages(the remaining pages) = x then cross multiply and divide then your answer will be 8

4 0

2 years ago

Read 2 more answers

Some please help me in the bottom show me how to do it really confuse ....

Elan Coil [88]

use the equation (y-y)=m(x-x). for example with the first equation: (y-7)=-4(x-2) distribute the slope into the (x-2). this will give you (y-7)=-4x+8. then you add the 7 to both sides to cancel it. this gives you y=-4x+15. hope this helps!! :)

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3 years ago

A variable that is manipulated by an experimenter to explore its relationship to other variables is a(n) _____ variable.

LuckyWell [14K]

Answer:

Independent variable

Step-by-step explanation:

Independent variable :

An independent variable is a variable that speaks to an amount that is being controlled in a trial. A needy variable speaks to an amount whose worth relies upon those controls.

It is the variable in a equation that may have its worth unreservedly picked without thinking about estimations of some other variable.

For example :

In equation $y=5x+3$ , x is an independent variable

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3 years ago