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4 years ago

HELP MEEE PLEASEEEEEEE

Mathematics

1 answer:

Drupady [299]4 years ago

5 0

Answer:

Step-by-step explanation:

it cuts x -axis where x=1

or x-1=0

y is always positive whether x≥1 or x≤ 1

or y≥0

or we can say

y=|x-1|

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Find the area of the shape.

siniylev [52]

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4 years ago

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Which multiplication problem is represented by the model

Ivenika [448]

Answer:

It's the second one. Press 'Ask For Help' if you need more help on problems

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3 years ago

Meghan has two less dimes as she does nickels and one more than double the amount of quarters as she does nickels for a total of

defon

Answer:

The number of nickel = 3

Number of dime = 1

Number of quarter = 7

Step-by-step explanation:

Let us assume the number of nickels Meghan has = m

So, the number of dimes she has = m -2

And the number of quarters she has = 1 + 2 m

Now, the total amount she has = $2.00

1 nickel = $0.05 ⇒ m nickel = m ($0.05) = 0.05 m

1 dime = $0.10 ⇒ (m -2) dime = m-2 ($0.10) = 0.10 (m-2)

1 quarter = $0.25 ⇒ (1+ 2m) quarter = (1+ 2m) ($0.25) = 0.25 (1+2m)

So, according to the question:

Amount of (nickel + dime + quarter) = $2.00

⇒ 0.05 m + 0.10 (m-2) + 0.25 (1+2m) = 2

or, 0.05 m + 0.10 m - 0.20 + 0.25 + 0.5 m = 2

or, 0.65 m = 2 - 0.05

or, m = 1.95/0.65 = 3

or, m = 3

Hence, the number of nickel = 3

Number of dime = m -2 = 3-2 = 1

and Number of quarter = 2m + 1 = 7

8 0

4 years ago

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq

Arte-miy333 [17]

Answer:

The perimeter of rectangle is $18\ cm$

Step-by-step explanation:

Let

x------> the length of rectangle

y----> the width of rectangle

we know that

The area of the constructed figure is equal to

$A=xy+2x^{2} +2y^{2}\\A=120\ cm^{2}$

$120=xy+2x^{2} +2y^{2}$ -----> equation A

$x=y+5$ -----> equation B

substitute equation B in equation A

$120=y(y+5)+2(y+5)^{2} +2y^{2}\\120=y^{2}+5y+2(y^{2}+10y+25)+2y^{2}\\120=y^{2}+5y+2y^{2}+20y+50+2y^{2}\\5y^{2}+25y+50-120=0\\5y^{2}+25y-70=0$

using a graphing calculator to resolve the quadratic equation

the solution is

$y=2\ cm$

Find the value of x

$x=2+5=7\ cm$

Find the perimeter of rectangle

The perimeter of rectangle is equal to

$P=2(x+y)\\P=2(7+2)=18\ cm$

3 0

4 years ago

What is 4/9 = 2/3 + 1/3b??????

faust18 [17]

b= -1.5

4/9=2/3 +1/3b

4/9= 6/9+1/3b

-2/9=1/3b

-2/9=3/9b

/-2/9

b= - 1.5

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3 years ago

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