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3 years ago

The horizontal angle between objects can be measured by: _____

1 answer:

6 0

Even though a protractor is also used, the best way to meaure an horizontal angle between objects is by means a magnetic compass, used in topography

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The phrase "six less than twice y" can be represented by the algebraic expression.

cluponka [151]

Answer:

six less than twice y is represented by 2y - 6

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4 years ago

Read 2 more answers

20 copies of the school yearbook together weigh 50 lb what is the weight of each book

dedylja [7]

Answer:

2.5 pounds per book

Step-by-step explanation:

Set up a proportion

20 copies / 50 pounds = 1 copy / x pounds

Cross multiply

20x = 50

Divide both sides by 20

x = 2.5 pounds

I hope this helped and please mark me as brainliest!

6 0

2 years ago

the average annual cost of heating a home woth solar energy is $200 with an inital cost of $9000. During the month of may, the s

Leona [35]

Answer: Discounted function will be

$C(x)=6750+150t$

Step-by-step explanation:

Since we have given that

Initial cost of solar energy = $9000

Average annual cost of heating a home with solar energy = $200

Rate of discount he received on the total cost = 25%

Let the number of year will be t

According to question, we need to write a discounted cost as a function of number of years.

So, our function becomes,

$C(x)=\frac{100-25}{100}(9000+200t)\\\\C(x)=\frac{75}{100}(9000+200t)\\\\C(x)=0.75(9000+200t)\\\\C(x)=9000\times 0.75+200\times 0.75t\\\\C(x)=6750+150t$

Hence, discounted function will be

$C(x)=6750+150t$

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4 years ago

Solve the systems using substitution.<br> 1.6x + 2y = -2<br> 4x + y = 1

Schach [20]

$\begin{array}{ccc}(1)\\(2)\end{array}\ \left\{\begin{array}{ccc}6x+2y=-2\\4x+y=1\end{array}\right\\\\4x+y=1\ \ \ |subtract\ 4x\ from\ both\ sides\\y=1-4x\\\\subtitute\ y=1-4x\ to\ (1):\\\\6x+2(1-4x)=-2\\6x+2\cdot1+2\cdot(-4x)=-2\\6x+2-8x=-2\\-2x+2=-2\ \ \ \ |subtract\ 2\ from\ both\ sides\\-2x=-4\ \ \ |divide\ both\ sides\ by\ (-2)\\\boxed{x=2}\\\\subtitute\ the\ value\ of\ x\ to\ the\ y=1-4x:\\\\y=1-4\cdot2\\y=1-8\\\boxed{y=-7}\\\\Answer: \left\{\begin{array}{ccc}x=2\\y=-7\end{array}\right$

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3 years ago

Please help me!!!!!!

svetoff [14.1K]

I’m not sure but something is telling me that is D

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3 years ago