$\dfrac{x}{4.5}=\dfrac{15.3+7.4}{7.4}\\\\\\x=\dfrac{4.5(22.7)}{7.4}\\\\\\x=13.8\\\\\text{Notice that x is the diameter of the circle}\implies r=\dfrac{13.8}{2}=6.9\\\\\\\text{Find the area of the circle using }A=\pi r^2\\A=\pi (6.9)^2\\\\.\ =\pi (47.6)\\\\.\ =149.6\\\\.\ \approx150$

4 0

3 years ago

-2.5d ≥ 30 10-x ≤35 Please help thanks!

Natasha2012 [34]

Answer:

1) d ≤ -12

2) x ≥ -25

Step-by-step explanation:

-2.5d ≥ 30

2.5d ≤ -30

d ≤ -12

10 - x ≤ 35

-x ≤ 25

x ≥ -25

4 0

3 years ago

Surface Area of this triangular prism?

blondinia [14]

240 ft^2 70 is each of the rectangular sides and each side of 15. 70+70+70+15+15= 240

3 0

3 years ago

Jill earns $9.50 per hour for her regular work time and $10.50 per hour for her overtime. Last week, Jill worked 43 hours of reg

Len [333]

Answer:$466.25

Step-by-step explanation:

9.50(43)+10.50(5.5)

8 0

3 years ago