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Andrei [34K]
3 years ago
10

what is the range of 74, 68, 87, 92, 96, 47, 26, 87 a. 122 or b. 70

Mathematics
2 answers:
tino4ka555 [31]3 years ago
6 0
Meaning of Range in Maths: difference between the highest and lowest number in a sequence
CORRECT SOLUTION: H no: 96..... L no: 26.......... 96-26= 70
CORRECT ANSWER: 70
galina1969 [7]3 years ago
4 0
The answer is B. 70!!!

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Answer:

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Step-by-step explanation:

we have

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

we know that

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so

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The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

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in this problem we have

x^{2}-8x+15=0  

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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

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

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Step-by-step explanation:

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