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2 years ago

Write down the following sets using set-builder notation:

Mathematics

1 answer:

sweet [91]2 years ago

5 0

Answer:

A = { x:x >3 ,where x --> R}

B = { x:x <4, where x --> R}

Y = { x:x is month of year with more than 30 days}

W = { x:x is all days of a week}

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A store sells 3 ears of corn for $1 they round prices to the nearest cent.Tell whether you would describe the relationship betwe

ziro4ka [17]

<span>A store sells 3 ears of corn for $1. They round prices to the nearest cent as shown below. Tell whether you would describe the relationship between cost and number of ears of corn as proportional relationship. Justify your answer. Ears of corn 1 2 3 4 Amt charged($) 0.33 0.67 1.</span>

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3 years ago

I Dont understand what to do

Sati [7]

You need to find the area of this

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3 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

1 year ago

Ashley and Keely shared some Hershey Kisses in the ratio of 5:2. If Keely had 12 Hershey Kisses, how many did Ashley have?

wolverine [178]

Answer:

Ashely had 30 kisses! Muah!

Step-by-step explanation:

Ratio of Ashely to Keely is 5 : 2 and we know Keely had 12. Keely represents the 2 in this ratio, and how do we get from 2 to 12? We multiply by 6. We have to multiply by 6 on the other side too then. 5 times 6 is 30, so Ashely had 30 hershey kisses.

In real life, not in ratio form, Ashely had 30 kisses and Keely had 12.

Please mark brainliest if possible, have a nice day! :)

8 0

3 years ago

Laura, David, and Carlos served a total of 115 orders Monday at the school cafeteria. David served 3 times as many orders as Car

Korvikt [17]

Answer:

Step-by-step explanation: ts 6 11 19 56

Laura, David, and Carlos served a total of 115 orders

David served 3 times as many orders as Carlos. David = 3x

Laura served 10 more orders than Carlos. let Carlos = x

How many orders did they each serve? Laura = x + 10

Carlos + David + Laura = 115

x + 3x + x+10 = 115

5x + 10 = 115

5x = 115 - 10

5x = 105

x = 21 Carlos

63 Davide

31 Laura

add then up 115 Total

4 0

3 years ago