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omeli [17]
3 years ago
5

For which equation does it make the most sense to solve by completing the square?

Mathematics
1 answer:
denis-greek [22]3 years ago
7 0
Completing the square is a method used to solve a quadratic equation by changing the shape of the equation so that the left side is a perfect square trinomial.
 The following equation makes more sense to solve it complete squares:
 x² + 20x = 52
 We have then:
 x² + 20x + (10) ^ 2 = 52 + 100
 (x + 10) ² = 152
 Answer:
 
The most sense to solve by completing the square is for:
 
B) x² + 20x = 52
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6. cory gets paid every two weeks. he works 40 hours per week at $7.75 per hour. cory has the following deductions: 8% for medic
aliya0001 [1]

Answer:   429.88

Step-by-step explanation:

The first 40 hours is at 9.50

40 *9.50 =380

The remaining hours is at 9.50 * 1.5 or 14.25

43.5 -40 = 3.5

3.5 * 14.25

49.875 = 49.88  ( rounding to the nearest cent)

Add together

380+49.88 =429.88

8 0
2 years ago
Read 2 more answers
Jim and Dianna want to save for their child’s college expenses. They find an annuity that pays 6% annual interest, compounded mo
lana66690 [7]

Answer:

future value = $49163.8

so required amount will be $491200 nearest $100

Step-by-step explanation:

given data

annual interest rate = 6 %

annuity = $300 per month

time period = 10 years

to find out

how much money will they have for the college expenses

solution

we know that effective rate will be

effective rate = \frac{0.06}{12}

effective rate = 5 × 10^{-3}

number of payment = 12 × 10 = 120

so future value will be express as

future value = annuity × \frac{(1+r)^t-1}{r}   .........1

future value = 300 × \frac{(1+5*10^{-3})^{120}-1}{5*10^{-3}}

future value = 300 × 163.8793  

future value = $49163.8

so required amount will be $491200 nearest $100

7 0
3 years ago
The temperature outside is -16 degrees fahrenheit. then the temperature rises 20 degrees. what is the current outdoor temperatur
Irina-Kira [14]
The answer is 4 degrees.
4 0
3 years ago
What’s the answer I don’t know I need help plz
andriy [413]

Answer:11

Step-by-step explanation:

5 0
3 years ago
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Given f(x) = 7x - 22, find x when f(x) = 48.
Lana71 [14]

The correct answer is:

c) 10

8 0
3 years ago
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