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3 years ago

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Mathematics

1 answer:

ziro4ka [17]3 years ago

7 0

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wpazsebu

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Sarah's age is four more than twice her brothers age. Write two equivalent algebraic equations that can be used to find their ag

marissa [1.9K]

Answer:

Step-by-step explanation:

Let her brother's age be x

Sarah is 2x + 4

3 0

3 years ago

Rewrite the equation using the properties of exponents. <br><br> <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B81y%5E7%7D"

nekit [7.7K]

Answer:

3y^2 3√3y(end route) if you are simplifying, and (81y^7)^1/3 if you are rewriting it.

Step-by-step:

I know this!

3 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 .

3 0

3 years ago

Read 2 more answers

The table shows the height of a plant as it grows.

viva [34]

Answer

144

Step-by-step explanation:

12*12

3 0

3 years ago

Help... with number 15 plz

statuscvo [17]

Answer:

Step-by-step explanation:

p is the ans

5 0

2 years ago