2 years ago

I think i had thw correct answers for thr last two but the keep coming up as incorrect

Mathematics

1 answer:

Oksana_A [137]2 years ago

7 0

Answer:

B. 40

C. 8

Step-by-step explanation:

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X/5 - 12 = -8 equals what

Luda [366]

The answer is X = 20

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2 years ago

Read 2 more answers

Please help thank you.

Mnenie [13.5K]

Answer:

Option D

Step-by-step explanation:

Whenever we take a square root of a number the ± sign is with it like here in the question

$x^2=20\\\\Apply\ square\ root\ on\ both\ sides\\sqrt{x^2}=\sqrt{20} \\\\The\ square\ cancels\ out\ with\ the\ root\x=\sqrt{20}$

And then x = ±4.47 which means x has two values one is +4.47 and the other is -4.47 so Option D is our answer.

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2 years ago

What are the zeros of the polynomial function f(x) = x^3-10x^2+24x

Ludmilka [50]

Replace F(x) with y
y=x^3-10x^2+24x
To find the roots replace y with 0.
0=x^3-10x^2-24x
Rewrite the equation as
x^3-10x^2+24x=0
Factor the left side
x(x-6)(x-4)=0
The solution is a result of
x=0, x-6=0, and x-4=0

The answer is:
x=0, 6, 4

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2 years ago

Rational numbers are _____ natural numbers.<br> A. Always<br> B. Sometimes<br> C. Never

ratelena [41]

I think it is
A. Always

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2 years ago

Construct x such that a/x= x/b

jenyasd209 [6]

$\frac{a}{x} = \frac{x}{b}$

From there we can see that because x equals both to a and b, it must be that a = b.

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3 years ago

I think i had thw correct answers for thr last two but the keep coming up as incorrect​

I think i had thw correct answers for thr last two but the keep coming up as incorrect