3 years ago

Eight less than one half a number is two

Mathematics

1 answer:

lawyer [7]3 years ago

7 0

Is means =

less than is subtract

1/2a -8=2

if you need to know how to do it let me know

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You were given the polynomial f(x)=3x^3+13x^2+19x+k and you know that f(-2)=0find k

eduard

Answer:

k = 10

Explanation:

The initial polynomial is:

$f(x)=3x^3+13x^2+19x+k$

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

$\begin{gathered} f(-2)=3(-2)^3+13(-2)^2+19(-2)+k=0 \\ 3(-2)^3+13(-2)^2+19(-2)+k=0 \end{gathered}$

Therefore, we can solve for k as follows:

$\begin{gathered} 3(-8)+13(4)+19(-2)+k=0 \\ -24+52-38+k=0 \\ -10+k=0 \\ -10+k+10=0+10 \\ k=10 \end{gathered}$

So, the value of k is 10

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1 year ago

Louis age is three years more than twice the age of Sánchez . The sum of their ages is 39. How old are Sánchez and Louis ?

Elden [556K]

Answer:

39 divided by 3 = 13+3=16 therefore Louis is 16 and sanchez i

Step-by-step explanation:

s going to be 23 years of age. Because 39-16=23

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3 years ago

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What do you think it would mean for two expressions to be equivalent? Explain.

ra1l [238]

Answer:

the answers would be the same

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3 years ago

-9(-3 1/3 - 4) how do I solve that math problem?

svetoff [14.1K]

You need to use the distributive property. So you take the -9 from outside the parentheses and multiply itself by the numbers inside.

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Can someone please help me with question 2! <br> Please help I need it now

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Tell me if you're still confused.

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