8/x-7=7/2
16=7(x-7) cross multiply
16=7x-49
-7x=-49-16
-7x=-65 divides each side by -7
-7x/7=-65/7
X=65/7
Alternative form
X=92/7
Which is 1st options in your questions.
Hope this helps!
Answer:
Dilate Circle A by a scale factor of 4.
Step-by-step explanation:
Figure 1 shows Circles A (red) and B (green) before any transformations.
Figure 2 shows Circle A dilated about its centre by a factor of 4.
It is now apparent that every radius in A' has a corresponding radius in B, so the circles are similar.
Since there are two halves in a whole, you can times each number by 2 to get the number of halves it has.
12*2=24
10*2=20
13*2=26
15*2=30
8*2=16
5*2=10
Answer:
A ≈ 183 cm²
Step-by-step explanation:
Step 1: Find the area of the 2 circles
A = πr²
r = 6/2 = 3
A = π(3)²
A = 9π
Since there are <em>2</em> circles, 9π(2) = 18π
Step 2: Find area of <em>entire </em>rectangle
A = lw
A = 12(20)
A = 240
Step 3: Subtract the area of the circles from the area of the entire rectangle
240 - 18π
Shaded area = 183.451 cm²
And we have our answer!
Answer:
A normal distribution has a mean of 50 and a standard deviation of 10. What is
the probability of selecting a number between 20 and 60?
