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LuckyWell [14K]

3 years ago

14

You survey 72 randomly chosen students about whether they are going to attend the school play. Twelve say yes. Predict the numbe

r of students who attend the school. 210 people attend the play.

1 answer:

Digiron [165]3 years ago

4 0

I think it will be a but im not sure:)

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Find a solution of the quadratic equation.6x squared + 7x + 2 =0

worty [1.4K]

Given the equation:

$6x^2+7x+2=0$

We will use the following rule to find the solution to the equation:

$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

From the given equation: a = 6, b = 7, c = 2

So,

$\begin{gathered} x=\frac{-7\pm\sqrt[]{7^2-4\cdot6\cdot2}}{2\cdot6}=\frac{-7\pm\sqrt[]{1}}{12}=\frac{-7\pm1}{12} \\ x=\frac{-7-1}{12}=-\frac{8}{12}=-\frac{2}{3} \\ or,x=\frac{-7+1}{12}=-\frac{6}{12}=-\frac{1}{2} \end{gathered}$

So, the answer will be option B) x = -1/2, -2/3

5 0

1 year ago

F(x) = x² + 5x-1 is shifted 3 units right. The result is g(x). What is g(x)?

CaHeK987 [17]

Answer:

D

Step-by-step explanation:

When a function is being shifted to the left, all x values will be added by y units shifted. (The constant that comes with x is excluded, eg. 3x shifted by 2 units left, becomes 3(x+2) and not 3x+2.)

Likewise, when a function is being shifted to the right, all x values will be subtracted by y units shifted. (Constant rules applies as well.)

Given f(x) is shifted 3 units right,

the new function, g(x) becomes:

$g(x) = {(x - 3)}^{2} + 5(x - 3) - 1$

Therefore the answer is D in this case.

3 0

2 years ago

Which expression is equivalent to (3x+4)(7x-2)

Cerrena [4.2K]

Answer:

21x² + 22x - 8

Step-by-step explanation:

(3x+4)(7x-2) = 21x² - 6x + 28x - 8 = 21x² + 22x - 8

6 0

3 years ago

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ASAP HELP... I DONT UNDERSTAND.......

daser333 [38]

Answer:

8 is answer

Step-by-step explanation:

5 0

3 years ago

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(7x10^5) divide (2x10^2)<br> Give answer in standard form

olga55 [171]

Answer:

$3.5\times10^3$

Step-by-step explanation:

$\dfrac{7 \times10^5}{2 \times10^2}$

Apply exponent rule: $\dfrac{a^{b}}{a^{c}}=a^{b-c}$

$\implies \dfrac{7 \times10^3}{2}$

$\implies 3.5\times10^3$

7 0

3 years ago

Read 2 more answers