Find the surface area of the prism

Answers

Answer 1

Answer: surface area of one face = 9x9 = 81
total no. of faces = 6
total surface area of prism = 81 x 6 = 486in.

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If 115% of a number is 460, what is 75% of the number?Please explain the work behind the solution

1.0 liter of a gas at standard pressure and pressure is compressed to 473ml. What is the new pressure of the gas?

Answers

If we assume that T does not change, then PV = k.

If this is true, then P1V1 = P2V2 (Boyle's Law)

P1 = 1 atm (standard pressure)
V1 = 1 L
P2 = ?
V2 = .473L

P2 = 2.11 atm

In a scale drawing of a house, 1 inch represents 3 feet. (a)The length of the real house is 21 feet. What is the length of the house in the scale drawing? _ inches

Answers

Answer:

7 inches

Step-by-step explanation:

divide 21 by 3

Which of the following quadratic regression equations best fits the data shown below?

Answers

Answer:

Step-by-step explanation:

In order to do this, you have to know how to use your calculator's regression equation function.

First enter in the data. Hit "stat" then 1:Edit and enter all the x values into L1. After each value, hit enter. When you're done with the x list, arrow over to L2 and enter in all the y-values. If there are already values there you need to clear, arrow up to highlight L1, hit "clear", then "enter" and the values will disappear. Do that for both lists if you need to.

After the data is listed in L1 and L2, hit "stat" again and arrow over to "Calc". Hit 5:QuadReg. If you have a TI 83, your equation will be there for you. If you have a TI 84, you'll need to arrow down to "calculate" to get the equation. Regardless, the equation is

$y=3.48x^2+1.22x+3.44$ , the last choice in your options.

Answer: D

Becasye I got it from him

Reginald has to put fertilizer on his yard. The bags of fertilizer cost $4.79 and cover 3500 square feet. Reginald's yard is a rectangle that measures 427 ft by 231 ft. How much will he spend on fertilizer?

Answers

He'll spend 138.91 dollars.

First multiply 427 and 231 to find out how much square feet you need to cover. Then divide the number by 3500 to see how many bags of fertilizer you need. Since there is a remainder, he'll have to buy another bag. Then, multiply the number of bags needed with the price of each bag to get the amount of money spent.

Vertex FormForm looks like?
Can we determine direction? If so, how?
Can we find the y-intercept from this form? If so, how?
Can we find coordinate point for the vertex? If so, how?
Can we identify the axis of symmetry from this form? If so, how?
Can we find the x-intercepts from this form? If so, how?
Any other notes to add?
Convert this equation into vertex form: y = x2 + 6x + 8
Convert this equations into vertex form: f(x) = x2 + 4x - 16

Answers

Can we determine direction?
yes we can.the letter 'a' in the equation of vertex represents if the parabola open upwards or downwards.positive for upward and negative for downward.

Can we find the y-intercept from this form?
Yes we can.Put the value of x=0 and solve for y.

Can we find the x-intercepts from this form
yes we can.Put the whole equation equals zero and solve for x.you will get two values for x and those will be your x-intercepts

Ifyou want to express the vertex form of an equation you have to knowthat the vertex form of a parabola’s equation can be expressed as:y = a(x - h)² + k. The way you know how the parabola will look likeis:

Ifa is positive then the parabola opens upwards like a U.Ifa is a negative number, then the graph will open downwards like anupside down U.

Ihope it helps, Regards.

Write: 4.9x10^-2 as an ordinary number (10^-2 means ten to the power of minus two )

PLZ HELP ME HOMEWORK DUE TOMORROW

Answers

$4.9\cdot10^(-2)=4.9\cdot(1)/(100)=4.9:100=0.049$

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A swimming pool in the shape of a rectangular prism is 10 feet long, 20 feet wide, and 5 feet deep. How much water could the swimming pool hold?

A restaurant has two pastry ovens. When both ovens are used, it takes about 3 hours to bake the bread needed for one day. When only the large oven is used, it takes about 4 hours to bake the bread for one day. Approximately how long would it take to bake the bread for one day if only the small oven were used?

if the value of a car is $22,000, and it depreciates by 15% each year. what is the car value after three years?