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3 years ago

12

which of the following statements accurately describes a result of a decreasing worker per beneficiary ratio in the Social Secur

ity system?

1 answer:

hodyreva [135]3 years ago

6 0

Answer: C

Step-by-step explanation:

You might be interested in

Find the missing side. Round your answer to the nearest tenth.

Umnica [9.8K]

Answer:

x= 23.0 (nearest tenth)

Step-by-step explanation:

Please see the attached picture for the full solution.

8 0

3 years ago

I don't get how to do this so plz help me out and also click on the picture

Jlenok [28]

You have to distribute it or use FOIL (if u know that method). This is basically factoring.
for instance:
(2x-9)×(x+4)
first: 2x × x = 2x^2
second: 2x × 4 = 8x
third: -9 × x = -9x
forth: -9 × 4 = -36

now combine like terms.
2x^2 + 8x -9x - 36
(8x and -9x are like terms)
(add the two together, which is -1x or -x)
2x^2 -x -36 is ur answer

now do this same method for the rest

4 0

3 years ago

What is 3x^2 -5x-12 in factored form

Ira Lisetskai [31]

Answer:

(3x+4)(x-3)

Step-by-step explanation:

That is the answer

5 0

4 years ago

Read 2 more answers

Given the position of the particle, what the position(s) of the particle when it’s at rest

choli [55]

The position function of a particle is given by:

$X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t$

The velocity function is the derivative of the position:

$\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}$

The particle will be at rest when the velocity is 0, thus we solve the equation:

$2t^2-9t-18=0$

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

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

Substituting:

$\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}$

We have two possible answers:

$\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}$

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

$undefined$

6 0

2 years ago

Can someone help me please

Kruka [31]

check the picture below.

8 0

3 years ago