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maw [93]
1 year ago
15

Solve this problem 8x + 4(x-1) a. 32x+3 b. 12x-4 c. 12x+4 d. 9x-4

Mathematics
2 answers:
Lilit [14]1 year ago
7 0

Answer:

b

Step-by-step explanation:

8x +4(x -1)

<em>Expand by multiplying 4 into each term inside the bracket:</em>

= 8x +4(x) +4(-1)

= 8x +4x -4

<em>Simplify</em>

= 12x -4

Thus, the answer is b.

riadik2000 [5.3K]1 year ago
4 0

8x + 4(x-1)

Let's start of by applying the distributive property

8x + 4x - 4

Next, let's add the variables.

12x - 4

The answer would be option B.

Hope this helps!

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what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
2 years ago
5% of adults participate in at least 30 minutes of exercise each day. How likely is it that a randomly chosen adult will exercis
MaRussiya [10]

Answer:

5 out of 100 adults so not very likely

6 0
3 years ago
How do i write 12.009 in a word form?
tia_tia [17]
Your answer will be twelve and nine thousandths because in place value decimals are like tenths, hundredths, thousandths. In place value for regular numbers are ones, tens, hundreds and so on. So, when you have 12.009, you are going to separate the decimals with the numbers. Then, write down the number in words which would be twelve. Now, go to the decimal and write that down, which is 9 thousandths. Finally, combine the both of them to get: twelve and nine thousandths.

Hope this helps :) 
and good luck

5 0
3 years ago
I got the first part but cant figure out the second, help would be appreciated
azamat

Answer:

see explanation

Step-by-step explanation:

look at the explanation& answer photo

6 0
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The,names in order are Kari,Tami,Juan,Brad
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3 years ago
Read 2 more answers
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