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Goryan [66]
3 years ago
14

Which of the following is a quadratic equation whose roots are 3 and -1?

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0

Answer:

B: x²-2x-3=0

x1= -1 x2= 3

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Pls pls help me with this essay. I don’t know how to start pls help me I have other homework to do. Just read the question
Pavel [41]

Answer:

First consider the original amount.

Then consider the rate of tax or markup

To find the tax or markup, multiply the rate by the original amount.

To find the total cost, add the tax or markup to the original amount.

Step-by-step explanation:

Example

A phone has a listed price of $790 before tax. If the sales tax rate is 6.5% find the total cost of the phone with sales tax included. Round your answer to the nearest cent as required.

Solution

Step 1:

List price of the phone = $790

Sales tax rate = 6.5%

Step 2:

Sales tax = 6.5% of 790=0.065×790=51.35

Step 3:

Total cost of phone including sale tax = list price + sales tax

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7 0
2 years ago
What is the sum of the first eight terms of the geometric series 2 + 6 + 18 + 54 + … ?
UkoKoshka [18]
2+6+18+54+162+486+1458+4375=6561

you multiply the previous number by three to find the next value
7 0
3 years ago
What is the percentage of 13/16
Fed [463]
13/16= 0.8125

Hope this helps!
7 0
3 years ago
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Please help! This is due at 11:59pm (the problem is stated in the photo)
SVETLANKA909090 [29]

Answer:

y=-5x

Step-by-step explanation:

this is because slope intercept form is y=mx+b

if m= -5 and b=0 the answer would be

y=-5x+0

simplified it would be

y=-5x

7 0
3 years ago
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i sell a jacket i bought for 200 dollars at a 20% increase. how much money will i make off of selling it
Ann [662]

Answer:

$40

Step-by-step explanation:

4 0
3 years ago
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