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AfilCa [17]
3 years ago
11

Ellis is painting wooden fenceposts before putti by then in his yard. They are each 5 feet tall and have a diameter of 1 foot. T

here are 10 fenceposts in all. How much paint will Ellis need to paint all the surfaces of the 10 fenceposts? Use 3.14 for pie, and round your answer to the nearest hundredth. Provide an explanation and proof for your answer to receive full credit.
Mathematics
1 answer:
lawyer [7]3 years ago
3 0

Answer:

39.25

Step-by-step explanation:

diameter. is 1 therefore radius is 1/2

formula is πr²h

where

h is height=5

=3.14x½²x5

=3.925 for one paint

therefore for 10 paints, we have

=3.925x10

=39.25

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What is an equation of the line that passes through the points (0,0) and (5,2)
Evgesh-ka [11]

Answer <u>(assuming it can be in slope-intercept form)</u>:

y = \frac{2}{5} x

Step-by-step explanation:

1) First, find the slope of the line using the slope formula,  m = \frac{y_2-y_1}{x_2-x_1}. Substitute the x and y values of (0,0) and (5,2) into the formula and simplify like so:

m = \frac{2-0}{5-0} \\m = \frac{2}{5}

So, the slope is \frac{2}{5}.

2) Now, use the point-slope formula to write the equation of the line. Using the point-slope formula y-y_1 = m (x-x_1), substitute values for m, x_1, and y_1.

Since m represents the slope, substitute \frac{2}{5} in its place. Since x_1 and y_1 represent the x and y values of a point the line intersects, we can substitute the x and y values of one of the given points (I chose (0,0)) into the formula as well. Then, isolate y to put in slope-intercept form:  

y-0=\frac{2}{5} (x-0)\\y = \frac{2}{5} x

8 0
3 years ago
Rewrite the parametric equations in Cartesian form: x(t)=4+t, y(t)=2sqrt(t).<br> y=?
Dmitriy789 [7]

Answer:

Both of these curves are equal to each other.

Step-by-step explanation:

We have

x(t) = 4 + t

and

y(t) = 2 \sqrt{t}

Solve for t in the x function

x = 4 + t

Subsitue this in for t.

y = 2 \sqrt{x - 4}

We get

a square root function shifted to right 4 units and stretched vertically by a factor of 2.

We can also prove this by graphing.

6 0
2 years ago
Will give brainliest!!!! I am just doing this for fun!
viktelen [127]

Answer:

87

Step-by-step explanation:

Umm ok, thanks that was easy points!

If you flip it, you see 86 ...  88, so the middle number is 87!

8 0
4 years ago
Read 2 more answers
Angles c and d are complementary. If angle c is 2x and angle d is 66, what is the value of x?
Mrac [35]

Answer:

x=12

Step-by-step explanation:

Complementary angles add up to 90 degrees. 90-66=24. 24 divided by 2 is 12.

6 0
3 years ago
The wholesale price for a chair is 194$ . A certain furniture store marks up the wholesale price by 35%. Find the price of the c
pishuonlain [190]

The price of the chair will be 261.9 $ .

One percent (symbolized 1%) is a hundredth part; thus, 100 percent represents the entirety and 200 percent specifies twice the given quantity. For example, 1 percent of 1,000 chickens equals 1/100 of 1,000, or 10 chickens; 20 percent of the quantity is 20/100 1,000, or 200.

If we say, 5%, then it is equal to 5/100 = 0.05.

To solve percent problems, you can use the equation, Percent · Base = Amount, and solve for the unknown numbers. Or, you can set up the proportion, Percent = , where the percent is a ratio of a number to 100. You can then use cross multiplication to solve the proportion.

Based on given conditions formulate

x = 194 ×(35%+1)

x= 194 ×1.35

x = 261.9 $ .

Thus The price of the chair will be 261.9 $ .

To know more about percentage.

visit-: brainly.com/question/28269290

#SPJ1

4 0
1 year ago
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