The correct answer is (x+6)(x+7). Great job.
X = - 4; y = 3; z = 2;
2 x² - 2 z^4 + y² - x² + z^4 =
= 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 =
= 2 * 16 - 2 * 16 + 9 - 16 + 16 =
= 32 - 32 + 9 - 16 + 16 = 9
Ok so after a loss of 28% she sold for 160
100-28=72
therefor
160=72%
find 100%
160:72=x:100
160/72=x/100
20/9=x/100
mutlply both sides by 900
2000=9x
divide boht sides by 9
222.2222222222=x
about $222.22
The net square pyramid and its given dimension as shown has a total surface area of 1040 ft².
<h3>How to calculate surface area of a square pyramid</h3>
Surface area of a square pyramid = A + 1 / 2 ps
where
- A = area of the base
- p = perimeter of base
- s = slant height
Therefore,
A = l²
where
A = 20² = 400 ft²
p = 4l = 4 × 20 = 80 ft
s = 16 ft
Therefore,
Surface area = 400 + 1 / 2 × 80 × 16
Surface area = 400 + 1280 / 2
Surface area = 400 + 640
Surface area = 1040 ft²
learn more on surface area here: brainly.com/question/2835293
So, if one common factor is 40, then they also have all the factors of 40 in common: 2,4,5,8,10... so we don't need to know that the other common factor is 10.
but there are only two multiples of 40 smaller than 100: 40 and 80. and if those numbers are not the same number, then they must be 40 and 80!
