Can somebody help with these three questions plz

Answers

Answer 1

Answer: $\bf √(2)\left(3√(2)+√(18) \right)~~\begin{cases}18=2\cdot 3\cdot 3\n\qquad 2\cdot 3^2\end{cases}\implies √(2)\left(3√(2)+√(2\cdot 3^2) \right)\n\n\n√(2)\left(3√(2)+3√(2) \right)\implies √(2)\left(6√(2) \right)\implies 6\left(√(2)\right)^2\implies 6\cdot 2\implies \stackrel{rational}{12}$

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the post office sold 900 stamps yesterday.1/4 of the stamps are postcard stamps. How many postcard stamps did they sell?
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HELPPPPPPPP!!!!!!!!!!

Please help me with this !!!!!!!!!!!!!!!!

Answers

Answer:

option D. 29

Step-by-step explanation:

since the selling price per mow on weekdays is 45 so divide the total earned with the price

1305 / 45 =29

this is the answer

What is the average number of minutes each month during a leap year? Please show your work.

Answers

To find the number of minutes in each month, first find the number of days in a leap year. There are 366 days in a leap year, and 24 hours each day. 366 times 24 will give you the number of hours each leap year. There are 8784 hours in a leap year. To find the minutes, you need to multiply this number by 60, because there are 60 minutes in an hour. When you solve this, you'll get the answer, there are 527040 minutes in a leap year.

Which three ordered pairs complete the table to give solutions of the equation y = x – 7?  A.(3, –10), (0, –7), and (3, 4)
B.(–3, –10), (0, –7), and (3, –4)
C.(–3, –4), (0, –7), and (3, –4)
D.(–3, 4), (0, –7), and (3, –4)

Answers

The answer is B.(–3, –10), (0, –7), and (3, –4)
y = x - 7

According to the table:
- When x = -3, then y = -3 - 7 = -10. So the pair is (-3, -10)
- When x = 0, then y = 0 - 7 = -7. So the pair is (0, -7)
- When x = 3, then y = 3 - 7 = -4. So the pair is (3, -4)

The perimeter of rectangle Z is equal to its area. Rectangle Y has the same perimeter as rectangle Z. The length of rectangle Y is 5 inches and the width is 3 inches. Explain how you can find length and width of rectangle Z.

Answers

The length and width of rectangle Z would be 4 inches as the width and 4 inches as the length. This is because first, you combine and find the total perimeter of Rectangle Y. The perimeter of rectangle y would be P=length + length + width + width, which is 16 inches. Rectangle Z has the same perimeter total as rectangle Y and rectangle Zs area is the same as rectangle Y. 4x4 is equal to 16 while to find the perimeter, 4+4+4+4 is also 16.

Jessica rode 9 miles farther than Roger rode. Let rrepresent the number ofmiles Roger rode. Write an expression for the number of miles Jessica rode

Answers

r+9 Because Jessica rode 9 miles more than Roger, you would add 9 to Roger's number making the expression r+9

Which is bigger 5/8 or 7/12

Answers

5/8=0.625

7/12=0.583......

5/8 is bigger as ive put both into a decimal as it is easier to tell

5/8 and 7/12
15/24 14/24
15 is greater than 14

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