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Delicious77 [7]
3 years ago
11

What are the possible values of x if (4x-5)^2=49? check all that apply. -4/5, -1/2, 3, 5, 7

Mathematics
2 answers:
maks197457 [2]3 years ago
6 0
To solve an equation with a square yo would take the square root of both sides.
(4x - 5)^2 = 49
sqrt((4x - 5)^2) = sqrt49
4x - 5 = + - 7
4x - 5 = 7 and 4x - 5 = -7
4x = 12 4x = -2
x = 3 x = -1/2
vesna_86 [32]3 years ago
5 0
The values are just 3 and -1/2 and that is all (:
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zhuklara [117]

Answer:

C)(5, 125), (6, 216)

Step-by-step explanation:

Well firstly, there's no actual way to know. There could be anything there, as for any n pairs (x, y) with distinct x-s, there exists a (n-1 or less)-degree polynomial that models them perfectly, and infinitely many polynomials of degree n (or more).

If we input those terms to a polynomial interpolator, we'll get an answer every time.

With this one, it will be the right answer though!

But to be serious, let's find out what the numbers are. We can notice they're all cubic numbers.

There's 1, which is 1^3, then theres 2^3, then it's 3^3, then 4^3.

It's reasonable to expect that we are expected to assume (x, x^3) is the rule.

We can see that the answer C (5, 5^3), (6, 6^3) fits this narrative.

6 0
3 years ago
-3s+2(-5s+1) if s =-3
Inessa05 [86]

Answer:

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Step-by-step explanation:

-3s + 2(-5s + 1)

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-3s + -10s + 2

(substitute (s) for -3)

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9 + 30 + 2

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4 0
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10 POINTS!!: ANSWER THIS QUESTION<br> (please no bad answers)
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Answer:

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Step-by-step explanation:

8 0
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Answer:

D.

Step-by-step explanation:

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3 0
3 years ago
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andrew11 [14]

Answer:

(30-6) ÷1.25

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|

24÷1.25=19.2

↓

you round that and you get 19

6 0
4 years ago
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