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2 years ago

-2(x+4) Help find answers

Mathematics

2 answers:

MAVERICK [17]2 years ago

3 0

Answer=-2x-8 yeah that should be ur answer

lions [1.4K]2 years ago

3 0

Answer:

-2x - 8

Step-by-step explanation:

Multiply each term in parentheses by -2 : -2x - 2 · 4

Multiply the numbers: -2x - 8

Soultions : -2x - 8 :)

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2 years ago

Which of the values shown are potential roots of f(x) = 3x3 – 13x2 – 3x + 45? Select all that apply.

galina1969 [7]

Answer:

All potential roots are 3,3 and $-\frac{5}{3}$ .

Step-by-step explanation:

Potential roots of the polynomial is all possible roots of f(x).

$f(x)=3x^3-13x^2-3x+45$

Using rational root theorem test. We will find all the possible or potential roots of the polynomial.

p=All the positive/negative factors of 45

q=All the positive/negative factors of 3

$p=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45$

$q=\pm 1,\pm 3$

All possible roots

$\frac{p}{q}=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45,\pm \frac{1}{3},\pm \frac{5}{3}$

Now we check each rational root and see which are possible roots for given function.

$f(1)= 3\times 1^3-13\times 1^2-3\times 1+45\Rightarrow 32\neq 0$

$f(-1)= 3\times (-1)^3-13\times (-1)^2-3\times (-1)+45\Rightarrow \neq 32$

$f(-3)= 3\times (-3)^3-13\times (-3)^2-3\times (-3)+45\Rightarrow \neq -144$

$f(3)= 3\times (3)^3-13\times (3)^2-3\times (3)+45\Rightarrow =0\\\\ \therefore x=3\text{ Potential roots of function}$

Similarly, we will check for all value of p/q and we get

$f(-5/3)=0$

Thus, All potential roots are 3,3 and $-\frac{5}{3}$ .

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2 years ago

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Plz plz somebody help me i will mark you has brainlest pls its due at 8:00 its like 7:43

Crazy boy [7]

Answer: She is incorrect because 0 + 0 = <u>0</u>

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2 years ago

The sun is about 93 x 10^6 miles from earth. what is this distance written as a whole number?

agasfer [191]

For this case we have the number in exponential notation:

$93 * 10 ^ 6$

We observe that the exponent of the exponential notation is positive.

Therefore, to express the number as a whole number, we must move the comma 6 spaces to the right.

We have then:

$93 * 10 ^ 6 = 93,000,000$

Answer:

this distance written as a whole number is:

$93 * 10 ^ 6 = 93,000,000$ miles

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2 years ago

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