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vesna_86 [32]
4 years ago
8

If 3x+4=-5, what does x equal to?​

Mathematics
2 answers:
mihalych1998 [28]4 years ago
8 0

Answer:

x = -3

Step-by-step explanation:

3x + 4= -5

Subtract 4 from both sides.

3x = -9

Divide both sides by 3.

x = -3

Elza [17]4 years ago
7 0

First subtract 4 from both sides to isolate the 3x.

That leaves us with 3x = -9.

Since x is being multiplied by 3, to get x by itself,

we need to divide both sides of the equation by 3.

So our final answer is x = -3.

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X3 + 15x2 - 8x +7<br> (Simplify your answer. Do not factor.)
BigorU [14]

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡Ф

Answer:

= x^3 + 15x^2 − 8x+7

Step-by-step explanation:

x^3 + 15x^2 − 8x + 7

There are no like terms.

Soo your answer will be: = x^3 + 15x^2 − 8x+7

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡Ф

Hope I helped!!!

    ~Nuha

        <3

<em>Δ new growth Δ</em>

5 0
3 years ago
How do I solve this
Sladkaya [172]

Step-by-step explanation:

\bf \underline{Solution-} \\

\textsf{Given,}\\

\sf{ \frac{ {a}^{6} {b}^{4}  }{ {a}^{2} {b}^{3}  } } \\

\textsf{Using law of intergal expo.. aᵐ ÷ aⁿ = aᵐ - ⁿ}\\

\sf{ \Rightarrow \:  {a}^{(6 - 2)}  {b}^{(4 - 3)} } \\

\sf{ \Rightarrow \:  {a}^{4}  {b}^{1} } \\

\sf{ \Rightarrow \:  {a}^{4}  {b}^{} } \\

\bf \underline{Hope\: this\: helps.} \\

4 0
3 years ago
FIRST PERSON TO ANSWER CORRECTLY GETS BRAINLIEST AND 10 POINTS!!!!!!! Click an item in the list or group of pictures at the bott
bixtya [17]

Answer:

The answer is 1

Step-by-step explanation:

7 0
4 years ago
A colony contains 1000 Bacteria. The population increases at a rate of 115% each hour. If X represents the number of hours elaps
Irina18 [472]

Answer:

b(x) = 1,000 * 2.15^x

Step-by-step explanation:

1,000 represents the intial colony size. An increase of 115% correlates to multiplying the said size by 2.15 to the power of the hours elapsed.

Common error: The factor is 2.15 and not 1.15 as an increase of 100% is doubling the amount. i.e. if the increase was 15%, we would multiply by 1.15.

8 0
3 years ago
The World Health Organization is planning a study of the average weight gain of Europeans in the last 5 years. Scientists from t
jeyben [28]

Answer:

B and D

Step-by-step explanation:

Options are

A. Their confidence interval would be less likely to capture the sample mean.

B. The probability of selecting a sample which doesn't capture the true value of μ would be 10% rather than 5% if they decide to calculate a 90% confidence interval rather than a 95% confidence interval from the sample they will select.

C. They would increase the margin of error of their confidence interval if they calculated a 90% rather than a 95% confidence interval.

D. They would decrease the margin of error of their confidence interval if they calculated a 90% rather than a 95% confidence interval.

A. Confidence interval is pivoted around mean. So this is an incorrect option.

B. 90% sample values around mean will be included in case of 90% confidence interval  and 95% sample values  around mean wil be included in case of 95% confidence interval. So this option is correct

C. Margin of error increases with increase in confidence interval as likelihood of a sample value deviating from mean increases. So this is incorrect.

D. same explanation as above

6 0
3 years ago
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