Answer:
Step-by-step explanation:
d = 2
arc length of semicircle = ½×circumference = ½×πd = π
perimeter of semicircle = π + d = π+2
Answer: (-1,-9)
Step-by-step explanation:
If a point is translate up or down it means your using the y coordinate an if a point is translated left or right your using the x coordinate.
So the x coordinate is 3 and is translated to the left by 4 units so is moving back by 4 .
3-4 = -1
The y coordinate is -7 and is also translated down by 2 units so it is also decreasing.
-7 -2 = -9
so the image is (-1,-9)
Answer: he can walk for the clase thenmake a left for them
Step-by-step explanation:
Answer:
$37,449
Step-by-step explanation:
<u>First convert 5% into a decimal</u>
.05
<u>Multiply the decimal by Alice's salary</u>
$39,420(.05)=1,971
<u>Now we subtract that answer from her salary this year</u>
$39,420-1,971=$37,449
<h3><u>
Alice's salary last year was $37,449</u></h3>
Answer:
x = - 3, x = 
Step-by-step explanation:
Given
4x² + 2x - 30 = 0 ( divide through by 2 )
2x² + x - 15 = 0
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 2 × - 15 = - 30 and sum = + 1
The factors are + 6 and - 5
Use these factors to split the x- term
2x² + 6x - 5x - 15 = 0 ( factor the first/second and third/fourth terms )
2x(x + 3) - 5(x + 3) = 0 ← factor out (x + 3) from each term
(x + 3)(2x - 5) = 0
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3
2x - 5 = 0 ⇒ 2x = 5 ⇒ x =
