Describe the cross section

Answers

Answer 1

Answer: the cross section is a pentagon (not a regular one though)

Answer 2

Answer: A cross section is the shape we get when cutting straight through an object.

Cross section on a cube is a square

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Please help! Question two

Answers

Answer:

4y+6

Step-by-step explanation:

Perimeter is adding up the outside

so.. there are y+y = 2y

y+3 + y+3 = 2y+6

2y+6 + 2y = 4y+6

Hope this helps :)

Work out 5/8−2/5 Give your answer in its simplest form.

Answers

$(5)/(8) - (2)/(5)$

First, find the LCD (least common denominator) of the two fractions.
List the multiples of each denominator and find the one that is common.
Multiples of 8: 8, 16, 24, 32, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40
40 is your LCD.

Second, what can you divide by to make the denominators of each fraction '40'? Whatever you do to the bottom you must do to the top.
$(5*5)/(8*5) - (2*8)/(5*8)$

Third, multiply.
$(25)/(40) - (16)/(40)$

Fourth, since the denominators are the same now, we can combine them.
$(25-16)/(40)$

Fifth, subtract '25 - 16' to get 9.
$(9)/(40)$

Since $(9)/(40)$ is already in the simplest form, it is your answer.

Answer as fraction: $(9)/(40)$
Answer as decimal: $0.225$

If BC = 4 and CD = 27, find AC.

Answers

$\Delta ABC\sim\Delta DAC\n\nthen\n\n(|AC|)/(|BC|)=(|CD|)/(|AC|)\n\n|AC|^2=|BC|\cdot|CD|\n\n|AC|^2=4\cdot27\n\n|AC|=√(4\cdot27)\n\n|AC|=\sqrt4\cdot√(27)\n\n|AC|=2\cdot√(9\cdot3)\n\n|AC|=2\sqrt9\cdot\sqrt3\n\n|AC|=2\cdot3\sqrt3\n\n|AC|=6\sqrt3$

31 is the answer I think..

Calculate the difference (home-away) in winning percentage. A) Need more information B) Positive C) Negative D) Zero

Answers

To calculate the difference in winning percentage (home - away), we do need more information. We would need the winning percentages for both home games and away games to determine whether the difference is positive, negative, or zero.

So, the correct answer is A) Need more information.

What does a v mark on the back of a dime mean?

Answers

Answer:

V is the Roman numeral for 5 (X = 10) and was used on US Liberty nickels from 1883 to 1912, and on Canadian nickels

Step-by-step explanation:

1.) What is the equation given a slope of ½ and a y-intercept of 4?2.) What is the slope of an equation y=2x-5

3.) What is the y-intercept of an equation y=7x+8?

Answers

1) y=1/2x+4
2) slope is 2
3) 8

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A coin is to be tossed until a head appears twice in a row. What is the sample space for this experiment? If the coin is fair, what is the probability that it will be tossed exactly four times?

This is the most frequently occuring element in a set

A bicycle has a listed price of $849.955 before tax. If the sales tax rate is 6.5%, find the total cost of the bicycle with sales tax included. Round your answer to the nearest cent, as necessary.