342 = a²
switch sides:
for x² = f(a) the solutions are x = √ f(a) and - √ f(a)
therefore:
√ 342 = 18
-√ 342 = - 18
a = 18 and a = - 18
hope this helps!
Answer:
7/11
Step-by-step explanation:
<h3>
Since one of the blue marbles are gone, there 4 blue marbles and 7 orange marbles. To pick an orange marble, the probability is the number of orange marbles over the total marbles. This equals to 7/11.</h3>
Answer:
∠XYZ = 74°
Step-by-step explanation:
∠XYZ = arcXZ
∠XYZ = 148°
∠XYZ = 74°
It's the first one. y = 3x
proportional means they are just some multiple of the other.
S=3*9*2+0.5*(12+6)*8+3*12+6*3=54+72+36+18=180