Number 13 please!! Need help asap
2 answers:
Answer:
8 / 9
Step-by-step explanation:
2 / 3 . 1 / 6 + 1 5 / 9 + 2 ( -7 / 18 )
= 1 / 9 + 14 / 9 - 14 / 18 ( 2 /3 * 1 / 6 = 1 / 3 * 1 / 3 = 1 / 9,
( converting mixed fraction to proper fraction )
( multiplying 2 to -7 / 18 )
= 1 / 9 + 14 / 9 - 7 / 9 ( Making the denominator the same by dividing -14 / 18 by 2)
= 15 / 9 - 7 / 9
= 8 / 9
Do you mean 32 well here's the answer anyways it's 34/9 if you want it simplified it is 3 7:9
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Answer:
Step-by-step explanation:
negative b plus or minus the square root of b squared minus four times a times c all over 2a
Y = sit ups, x= days
y= 2x + 15
33 = 2x + 15 (subtract 15 from both sides)
18 = 2x (divide both sides by 2)
9 = x, 9 days
given ,
a circle of radius 12 inches
and
= 45°
now we know that ,
![\\{Area \: of \: sector = \frac{\theta}{360\degree} \times \pi \: r {}^{2} } \\ \\](https://tex.z-dn.net/?f=%5C%5C%7BArea%20%5C%3A%20of%20%5C%3A%20sector%20%3D%20%20%5Cfrac%7B%5Ctheta%7D%7B360%5Cdegree%7D%20%20%5Ctimes%20%5Cpi%20%5C%3A%20r%20%7B%7D%5E%7B2%7D%20%7D%20%5C%5C%20%20%5C%5C%20)
let's now plug in the values of radius and theta as 12 inches and 45° respectively ,
![\\\dashrightarrow \: \frac{45}{360} \times \frac{22}{7} \times 12 \times 12 \\ \\ \dashrightarrow \: \frac{1}{8} \times \frac{22 \times 12 \times 12}{7} \\ \\ \dashrightarrow \: \frac{22 \times 12 \times 12}{56} \\ \\ \dashrightarrow \: \frac{3168}{56} \\ \\ \dashrightarrow \: 56.57 \: inches {}^{2} (approx.)](https://tex.z-dn.net/?f=%5C%5C%5Cdashrightarrow%20%5C%3A%20%20%5Cfrac%7B45%7D%7B360%7D%20%20%5Ctimes%20%20%5Cfrac%7B22%7D%7B7%7D%20%20%5Ctimes%2012%20%5Ctimes%2012%20%5C%5C%20%20%5C%5C%20%5Cdashrightarrow%20%5C%3A%20%20%5Cfrac%7B1%7D%7B8%7D%20%20%5Ctimes%20%20%5Cfrac%7B22%20%5Ctimes%2012%20%5Ctimes%2012%7D%7B7%7D%20%20%5C%5C%20%20%5C%5C%20%5Cdashrightarrow%20%5C%3A%20%20%5Cfrac%7B22%20%5Ctimes%2012%20%5Ctimes%2012%7D%7B56%7D%20%20%5C%5C%20%20%5C%5C%20%5Cdashrightarrow%20%5C%3A%20%20%5Cfrac%7B3168%7D%7B56%7D%20%20%5C%5C%20%20%5C%5C%20%5Cdashrightarrow%20%5C%3A%2056.57%20%5C%3A%20inches%20%7B%7D%5E%7B2%7D%20%28approx.%29)
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