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3 years ago

HURRRRRRRRRRRRY PLZ I NEED HELP IMPROPER ANSWER ARE ALWAYS REPORTED!!! All my points

Mathematics

1 answer:

zalisa [80]3 years ago

7 0

Answer:

256 pretzels and a total of 15 snack bags.

Step-by-step explanation:

14 * 2 = 28

15* 2= 30

4 * 16 = 64

2 * 18 = 36

1 * 19 = 19

3 * 20 = 60

1 * 21 = 21

28 + 30 + 64 + 36 + 19 + 60 + 20 = 256

256 pretzels

To find the number of bags, count the dots.

There are a total of 15 dots

There are a total of 15 snack bags.

I hope I helped!

Let me know if you need anything else!

~ Zoe

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Two square rooms have a total floor area of 89m2. One room is 3m longer each way than the other. Find the dimensions of the two

Rudiy27

Answer:

Step-by-step explanation:

Let the smaller room have an area of x^2

Let the larger room have an area of (x + 3)^2

(x+3) ^2 + x^2 = 89 Be careful not to make it 89^2.

x^2 + 6x + 9 + x^2 = 89 Expand the binomial squared

2x^2 + 6x + 9 - 89 = 0 Subtract 89 from both sides

2x^2 + 6x + 9 - 89 = 0 Combine

2x^2 + 6x - 90=0 Divide by 2

x^2 + 3x - 45 = 0 This factors.

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Step-by-step explanation:

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Indicate whether the following statements are True (T) or False (F).

chubhunter [2.5K]

1. False because a rational is a fraction or part of a number ( $\frac{3}{2}, 3.2$ ). $\sqrt{49} = 7$

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3. True; same reason

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4 0

4 years ago

Plz help don’t understand

saul85 [17]

Answer:

Step-by-step explanation:

every time x goes up 1, y goes up 4

x = 3 minus x = 2 is a delta (a change of 1)

x = 4 minus x = 3 is a delta (a change of 1)

x = 5 minus x = 4 is a delta (a change of 1)

the delta x is ALWAYS 1 for this table you can always substract x's to find the delta delta is symbolized by Δ Δx for the delta x

y = 7 minus y = 3 is a delta (a change of 4)

y = 11 minus y = 7 is a delta (a change of 4)

y = 15 minus y = 11 is a delta (a change of 4)

the delta y is ALWAYS 4 for this table you can always substract y's to find the delta delta is symbolized by Δ Δy for the delta y

the slope m = Δy / Δx m = 4 / 1 m = 4

y = mx + b when x = 0 then y = b (called the y intercept)

so how do we find the y intercept?

look at the pattern in the TABLE Δx and Δy

when x = 1 y = (3 - 4) = -1

x = 0 y =( -1 - 4) = -5

so y = 4x - 5 is a line equation for the data in this table

I believe there are other forms for linear equations

I chose the y-intercept form

use the point slope equation

(y - y1) = m(x - x1) where (x1, y1) are the coordinates of a point on

the line

when you know the slope of the line and a point on the line

as before

m = (y2 - y1) / (x2 - x1) from the table

= (7 - 3) / (3 - 2) still equals

= 4/1 = 4

pick a point on the line say x= 4 and y = 11 (4, 11)

(y - y1) = m(x - x1)

y - 11 = 4(x - 4) point slope form

solving point slope form for y

y - 11 = 4x - 16 add 11 to both sides

y = 4x - 5 back to the y-intercept form

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4 years ago