If you have earned income, which of the following retirement devices must you contribute to, by law?

It says round all calculations to one decimal point <br> Pls show workings it due in a hour

MissTica

Answer:

$2\sqrt{5}+\sqrt{29}+\sqrt{53},\\\approx 17.14\:\mathrm{units}$

Step-by-step explanation:

The distance between two coordinates is given by:

$d=\sqrt{(\Delta x)^2+(\Delta y)^2}$ , or $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ .

The distance between each of the coordinates of the triangle forms the sides of triangle. Therefore, we can add the distance between these coordinates to find the perimeter of the triangle.

The distance between $(3, -2)$ and $(7, 0)$ is:

$d=\sqrt{(7-3)^2+(0-(-2))^2}=\sqrt{4^2+2^2}=\sqrt{20}=2\sqrt{5}$

The distance between $(3, -2)$ and $(5, 5)$ is:

$d=\sqrt{(5-3)^2+(5-(-2))^2}=\sqrt{2^2+7^2}=\sqrt{53}}$

$d=\sqrt{(7-5)^2+(0-5)^2}=\sqrt{2^2+5^2}=\sqrt{29}$ .

Therefore, the total perimeter of the triangle is:

$\fbox{$2\sqrt{5}+\sqrt{29}+\sqrt{53}\:\checkmark$}$ .

6 0

3 years ago

Building a is 160160 feet shorter than building

Serjik [45]

I assume the heights are 160 ft and 1480 ft.

The two heights are unknown, so we will use variable h to help solve the problem.
The shorter building, building A, has height h.
Since building A is shorter by 160 ft, then building B is taller by 160 ft, so the height of building B is h + 160.

Now we add our two heights to find the total height.

h + h + 160 is the total height.
We can write it as 2h + 160

We are told the total height is 1480 ft, so we let 2h + 160 equal 1480, and we have an equation.

2h + 160 = 1480

Subtract 160 from both sides

2h = 1320

Divide both sides by 2

h = 660

h + 160 = 820

Building A measures 660 ft.
building B measures 820 ft.

7 0

3 years ago

Help please, thanks.

Vladimir79 [104]

Answer:

B

Step-by-step explanation:

C = R/1.8 - 273

C + 273 = R/1.8

1.8 * (C + 273) = R

1.8 can also be read as the fraction 9/5.

9/5 * (C + 273) = R

Thus your answer is B. Hope I helped!

7 0

3 years ago

Read 2 more answers

Mark has made a $2000 down payment on an apartment. The total cost of the apartment for the year is $12000. He pays monthly paym

Grace [21]

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7 0

3 years ago

Which is another way to write 42+63?

eduard

Forty two plus sixty three that's your answer

7 0

3 years ago