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bixtya [17]
2 years ago
5

5. y = 2x2 + 8x + 5 x=-4

Mathematics
1 answer:
matrenka [14]2 years ago
4 0

Answer:

x = -23

Step-by-step explanation:

y = 2*2 +8x+5

-> (2)(2)+(8)(-4)+5

-> (2)(2)+(8)(-4)+5

  x = -23

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What things do you need to remember to estimate large numbers
irga5000 [103]

Answer:

remember to round numbers to 1 significant figure

Step-by-step explanation:

usually in an exam when you're asked to estimate the answer to a calculation, usually you round each number to 1 sf and then work on from there.

3 0
3 years ago
You decide finance a $12,000 car at 3% compounded monthly for 4 years. What will your monthly payments be? How much interest wil
dexar [7]

Answer:

Step-by-step explanation:

The cost of the car is $12,000

We would apply the periodic interest rate formula which is expressed as

P = a/[{(1+r)^n]-1}/{r(1+r)^n}]

Where

P represents the monthly payments.

a represents the cost of the car

r represents the interest rate

n represents number of monthly payments. Therefore

a = 12000

r = 3%/12 = 0.03/12 = 0.0025

n = 12 × 4 = 48

Therefore,

P = 12000/[{(1+0.0025)^48]-1}/{0.0025(1+0.0025)^48}]

12000/[{(1.0025)^48]-1}/{0.0025(1.0025)^48}]

P = 12000/{1.127 -1}/[0.0025(1.127)]

P = 12000/(0.127/0.0028175)

P = 12000/45.075

P = $266.22

The monthly payment is $266.22

The total amount that would be paid over the life of the loan is

266.22 × 48 = $12778.56

The amount of interest paid is

12778.56 - 12000 = $778.56

3 0
3 years ago
The amount of sales of tickets at a movie theater t (x) varies directly with the number of customers x. Fourteen customers paid
Nikitich [7]

175=12.5(14)

so your answer would be C) f(x)=12.5x

6 0
4 years ago
Read 2 more answers
1/4 = y/12What is y?
N76 [4]
1/4 = y/12

12/4 = y 
y = 3

Answer: y = 3

Check work

1/4 = y/12 
1/4 = 3/12
Correct! 
7 0
4 years ago
Read 2 more answers
Which number is not divisible by either of the numbers 3 and 5?
Triss [41]
3and5 are both divisible by 15
8 0
3 years ago
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