Step-by-step explanation:
Vina has $4.70 in quarters, dimes and nickels in her purse. She has nine more dimes than quarters and four more nickels than quarters. How many of each coin are in her purse?
nickels
dimes
quarters
Answer:
D) 57.5°
Step-by-step explanation:
As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side.
Pythagoras Theorem =
=
a = 7 and b = 11
= 49
= 121
Plugging in the values, we will get:
= 49 + 121
= 170
c = ![\sqrt{170}](https://tex.z-dn.net/?f=%5Csqrt%7B170%7D)
To calculate the unknown angle B, we can use law of sine.
Law of sine =
=
=
So,
= ![\frac{b}{sinB}](https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7BsinB%7D)
= ![\frac{11}{sinB}](https://tex.z-dn.net/?f=%5Cfrac%7B11%7D%7BsinB%7D)
Sin90 = 1
sinB = ![\frac{11}{\sqrt{170} }](https://tex.z-dn.net/?f=%5Cfrac%7B11%7D%7B%5Csqrt%7B170%7D%20%7D)
B =
(
)
B = 57.5°
I think it is 15 percent is a statistic.
I am not 100% sure if it is right or not but I hope it helps!
FIRST. find the factors:
X=-5 --> (X + 5) = 0
x = 1--> (X - 1) = 0
x =3 --> (x - 3) = 0
3
NEXT, multiply all the factors:
(x + 5) (x - 1) (x - 3) = 0
-> X3 + x2 - 17x +15 = 0
-> f(x) = x3 + x2 - 17x +15 or
y=x3 + x2
17x + 15
Answer:
I believe it is c> 34
Step-by-step explanation:
Correct me if i'm wrong