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1 year ago

12

I need a lot of help, please! ):

1 answer:

tankabanditka [31]1 year ago

8 0

Answer:

I don't know sorry it even very hard and diffult for a high school kid

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What is the sum of the length of the longest meteor and the length of the shortest meteor?

Lera25 [3.4K]

Answer:

9 1/8

Step-by-step explanation:

6 0

1 year ago

Read 2 more answers

PLZ HELP ME PLZZZ THIS IS 40% of my grade

Salsk061 [2.6K]

I think it’s 8 but plz double check

4 0

2 years ago

Read 2 more answers

Mr. Mandel gave his class 12 minutes to read. 5 1/2 pages in that time. At what rate, in pages per hour, did Claire read?

Eva8 [605]

5 1/2 pages in 12 minutes.
11/2 pages in 12 minutes

How many pages in an hour?
well, an hour has 60 minutes

Let's write a proportion
11/2 / 12 = x/60
cross multiply
(11/2 * 60) = 12x
330 = 12x
divide both sides by 12
27.5 or 27 1/2 = x

27.5 pages per hour.

Hope this helps

8 0

2 years ago

Anybody know this answer

Deffense [45]

Answer is last one. last one is false

Every real number is a rational number

example:

square root (3) is real number
but square root (3) is not a rational number

hope it helps

3 0

2 years ago

Match the phenomenal expression on the left with the simplified version on the right

nalin [4]

Given the polynomial expression:

(y + 5)²

(y - 5)(y + 5)

Let's simplify each of the given expression:

a.) (y + 5)²

The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

$\text{ (a+b)}^2\text{ = }a^2\text{ + 2ab + }b^2$

We get,

$\mleft(y+5\mright)^2=(y)^2+2(y)(5)+(5)^2$ $(y+5)^2=y^2+10y+25$

b.) (y - 5)(y + 5)

To be able to simplify the following expression. We will be using the formula for the difference of two squares.

$(a+b)(a-b)=a^2-b^2$

We get,

$\mleft(y-5\mright)\mleft(y+5\mright)=(y)^2-(5)^2$ $(y-5)(y+5)=y^2-25^{}$

8 0

9 months ago