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3 years ago

I need help, will someone be kind enough to explain step by step?

Mathematics

1 answer:

gulaghasi [49]3 years ago

7 0

63÷1 is 63 because what is asking is how much will have more if we only give to one person we don't have to divide and you can't divide 5÷9 if we do that we gonna end up with 0.344 or something like that but you can divide 9÷5 which is 1.8 what is saying is if we take 9 and give to 5 person how much would all of them would get.

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Y = x² - 4x convert from standard to vertex form

Pepsi [2]

Answer:

$y = (x-2)^{2} -4$

Step-by-step explanation:

To complete the square: add 4 to both sides because the product of 4 as 2 as the factor which 2 * 2 so $2^{2}$

$y + ? = x^{2} - 4x + ?$

$y + 2^{2} = x^{2} - 4x + 2^{2}$

$y + 4 = x^{2} - 4x + 4$

Now we can factor the expression

$y + 4 = (x-2)^{2}$

Move the 4 to the other side to isolate y which changes the sign

$y = (x-2)^{2} - 4$

6 0

2 years ago

Find the lateral area of the cone in terms of π.

Andreyy89

Answer:

$15\pi\ cm^{2}$

Step-by-step explanation:

we know that

The lateral area of the cone is equal to

$LA=\pi rl$

where

r is the radius of the base

l is the slant height

we have

$r=3\ cm$

Applying the Pythagoras Theorem find the slant height

$l^{2}=3^{2} +4^{2}\\ \\l^{2}=25\\ \\l=5\ cm$

substitute in the formula

$LA=\pi (3)(5)=15\pi\ cm^{2}$

8 0

3 years ago

When BA=10 ft, find the area of the region that is NOT shaded. Round to the nearest whole number. (reply so i can draw it out, p

nexus9112 [7]

The area of the region that is not shaded in the diagram is determined through the following solution:

A = (1 − (60°/360°)*π) * (10 ft ) ^2 A = 56*π*100 [ft2] A = 250/3 π [ft2]
A = 262 [ft2]

5 0

3 years ago

Find the value when x = 2 and y =3. (2x + 5y)^0 0 1 19

Alexxx [7]

I don’t get what ^0 0 1 19 means but it’s
2(2) + 5(3)

3 0

3 years ago

So confused on 30 and 31 and need to get them done!

stira [4]

For #31 you would make two squares on the left and right side and then four rectangles in the middle

5 0

3 years ago

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