Answer:
A, B , C do NOT use appropriate compatible numbers to estimate the total number of hours he worked.
Step-by-step explanation:
Malik earned $2,344.55
Wages per hour $ 35.50
No of hours = Total wages / wages per hour= $2,344.55/ 35.50 = 66.043
<em>Lets analyze all the options</em>
A. 2,400 ÷ 30= 80
B. 2,400 ÷ 40= 60
C. 2,000 ÷ 40= 50
D. 2,000 ÷ 30= 66.67
A, B , C do NOT use appropriate compatible numbers to estimate the total number of hours he worked.
<u><em>Only D uses appropriate compatible numbers to estimate the total number of hours he worked.</em></u>
It’s c I just took that quiz
<span>C.∠GFE Is the answer.</span>
Answer:
Step-by-step explanation:
focus (1 , -7) ⇒ a = 1 & b = -7
y = 1 ⇒ c = 1
Equation of parabola :
(x - a)² + (y - b)² = (y - c)²
(X - 1)² + (y + 7)² = (y - 1)²
Now, expand.
x² - 2x + 1 + y² + 2*7*y + 7² = y² - 2*y*1 + 1
x² - 2x + 1 + y² - 14y + 49 = y² - 2y +1
x² - 2x + 1 + y² - 14y + 49 - y² + 2y - 1 = 0
x² - 2x + <u>y² - y²</u> <u> - 14y + 2y</u> <u>+ 1 + 49 - 1 </u>= 0
x² - 2x - 12y + 49 = 0
The answer will be...
30/100*900
= 30*9
= 270
= 900+270
= 1170
