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alexandr1967 [171]
3 years ago
8

X^(2)-4x-17=0 Please show work step by step

Mathematics
1 answer:
Dimas [21]3 years ago
7 0

Step-by-step explanation:

It seems here that they are asking us to solve for x

to do this we first need to factor

Since we can't factor this using the normal method we can instead do this

x^2 -4x-17=0

add 4 to both sides as it is a perfect square

x^2 - 4x + 4  = 17 +4

(x-2)^2 = sqrt 21

x-2 = ±  4.58

x -2 = 4.58    x-2 = -4.58

x= 6.58          x=-2.58

Or just say x=2+√21 or x=2−√21

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Answer:

40 dimes and 21 pennies.

Step-by-step explanation:  40 dimes equal 4.00 so just add 21 pennies

8 0
3 years ago
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Answer:

(-1/3; 4)

Step-by-step explanation:

(-2, -1) , (-1, 6 ) and (2, 7).​

x=(-2-1+2)/3= -1/3

y=(-1+6+7)/3=12/3=4

=> (-1/3; 4)

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3 years ago
Jenna's 4Runner is expected to get 22 miles/gallon on the highway, or she can
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Answer: A.4Runner cost more for $11.02

              B.Cost of fuel for Elentra: 3.75*3.59=$13.46

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Step-by-step explanation:

A.Find how many gallons 4Runner spends on 150 mile trip.

use proportion

22:1=150:x

22x=150

x=150/22

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40:1=150:x

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x=150/40

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4Runner cost more for $11.02

B.Cost of fuel for Elentra: 3.75*3.59=$13.46

Cost of fuel for 4Runner : 6.818*3.59=$24.48

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2 years ago
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