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3 years ago

SOMEONE PLZZ HELP, I HAVE A TEST AND DONT KNOW HOW TO DO THIS!!

Mathematics

1 answer:

Harman [31]3 years ago

5 0

I believe it is C.
Good luck!

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What is the purpose of Limited Government?

Cerrena [4.2K]

Answer:

Step-by-step explanation:

Its to protect the rights of citizens so that the central government doesnt gain too much power to themselves

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3 years ago

8x + y = 17<br> 5x + 5y = –20

Diano4ka-milaya [45]

Answer:

X=3 Y=-7

Step-by-step explanation:

You can solve a system of equations a number of ways. Substitution makes the most sense in this case. Take the top equation and set it equal to y making it: y=17-8x

Then substitute y in the bottom equation for the y solved in the top. So,

5x + 5(17-8x) = -20

Then solve for x

x=3

Now that we know x, plug it back into the equation for y

y = 17 - 8(3)

y = -7

So your solution is (3, -7)

8 0

3 years ago

Read 2 more answers

Timelimit: 15 minutes. 11:08 remaining, x A radio tower is located 250 feet from a building. From a window in the building, a pe

Varvara68 [4.7K]

Answer:

The height of tower is 322.7 feet.

Step-by-step explanation:

Given

Distance between a building and tower= 250 feet

BCDE is a rectangle .Therefore, we have BC=ED and CD=BE=250 feet

In triangle ABE

$tan\theta=\frac{perpendicula \; side }{hypotenuse}$

$\theta=38^{\circ}$

$tan38^{\circ}=\frac{AB}{BE}$

$\frac{AB}{250}=0.781$

$AB=0.781\times250$

AB=195.25 feet

In triangle EDC

$\theta=27^{\circ}$

$tan27^{\circ}=\frac{ED}{CD}$

$\frac{ED}{250}=0.509$

$ED=250\times0.509$

ED=127.25 feet

ED=BC=127.25 feet

The height of tower=AB+BC

The height of tower=195.25+127.25=322.5 feet

8 0

4 years ago

What is the total cost of 0.5 pound of peaches selling for $0.80 per pound and 0.7 pound of oranges selling for $0.90 per pound?

never [62]

1.33 $ OK OK OK OK OK OK OK OK OK OK OK

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4 years ago

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Which of the following is a perfect square trinomial?

Snowcat [4.5K]

Answer:

$x^2-5x+6\\(x-3)(x-2)$

$x^2-3x+4\\(x-4)(x+1)$

$x^2+20x+100\\(x+10)(x+10)\\(x+10)^2$

That's the answer

$x^2+14x-49\\x(x+14)-49$

Only $x^2+20x+100$ is a perfect square trinomial

3 0

4 years ago