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salantis [7]
3 years ago
11

BRAINLIEST + 100 PTS IF YOU ANSWER THIS QUESTION

Mathematics
2 answers:
elena-s [515]3 years ago
7 0

Answer:I believe the answer is B I hope this helps btw B and C ARE THE SAME

Tema [17]3 years ago
5 0
The answer to this will be B
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What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?
tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

y=x^{2}-8x+15

we know that

The x-intercepts are the values of x when the value of y is equal to zero

so

For y=0

x^{2}-8x+15=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}-8x+15=0  

so

a=1\\b=-8\\c=15

substitute in the formula

x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}

x=\frac{8\pm\sqrt{4}} {2}

x=\frac{8\pm2} {2}

x=\frac{8+2} {2}=5

x=\frac{8-2} {2}=3

so

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0
3 years ago
You have 3 friends pay $26.55for a pizza and 4 of the same kind of drinks. The pizza cost $18.75. Write and solve an equation to
Kazeer [188]
Well... how about pay the cost and enjoy the pizza and drinks.
6 0
3 years ago
Sharon paid $78 sales tax on a new camera. If the sales tax is 6.5%, what was the cost of the camera?
Irina18 [472]

Answer:

$1200

Step-by-step explanation:

$1200

Step-by-step explanation:

78 = 6.5%

This means that if you divide 78 by 6.5, you get the equivalent of 1% of the price:

78 ÷ 6.5 = 12

So 1% = 12

Now simply multiply this by 100 to get the full answer:

12 x 100 = 1200

So the camera cost $1200!

5 0
3 years ago
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1. The diameter of a cylinder is 48 meters. What is the radius?​
aev [14]

Step-by-step explanation:

diameter of cylinder is 48m

radius= diameter/2

  • 48/2
  • 24m

<h2>stay safe healthy and happy.</h2>
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3 years ago
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24 devised by what equals 19
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Answer:

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3 years ago
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