Answer:
The domain is-3<x<3. It can also be (-∞,-3) U (-3,3) U (3, ∞).
Step-by-step explanation:
The U stands for Union. The second answer usually used only for college algebra.
Answer:
$6.84
Step-by-step explanation:
Add the 2 values together and divide by 2
$3.84 + $9.84 = $13.68
$13.68/2 = $6.84
Answer:
Step-by-step explanation:
Im going to assum the wall your talking about is the one at the bottom.
It is divided into two equal trapezoids, so we can find the area of one trapezoid, multiply it by 2 to find the area of the entire wall.
A= (1/2)(b1+b2)(h)
Where b1 and b2 are the two parrellel sides, and h is the height of the trapezoid.
A= .5*(9+6)(8/4) We divide by 8 by 2 because we are finding the area of one trapezoid which is half the height of the wall.
A= 30 ft squared.
2A= area of whole wall
2*30=60
The entire wall is 60 sq. ft.
2. The area you need to cover need to cover is 60 sqft.
Rolls of wallpaper are rectangular.
A = L*W and they told us the width is 2 ft. and we know the area we need to cover is 60 ft so we can subsitute those in to figure out the length.
60= L*2
L= 30 ft
You need at least 30 feet in length to cover the whole wall.
Answer:
x = 2 & y = 8
And this means-
x+y=10
<em>Note:- These type of questions can have infinite solutions</em>
Answer:
26 * 26^8 = 26^9
Step-by-step explanation:
Here, we want to write 26 * 26^8 in exponential form.
26* 26^8 is same as 26^1 * 26^8
According to the first law of indices, we are going to add the powers together;
Thus, this gives ; 26^(1 + 8) = 26^9