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3 years ago

12

Joey is saving for a new bike. On the first day he saves $2. Each day after that, he doubles the number of dollars he saved on t

he previous day. How much money does he save on the 5th day?

1 answer:

marta [7]3 years ago

4 0

Answer:

Help me with my only question after this. The answer would be 48

Step-by-step explanation:

Double by multiplying every day until the 5th Day

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Reyna puts 1/4 pound

gogolik [260]

1/4 pound x 5 days= 1 1/4 pounds (1.25)

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3 years ago

Y=3(x-2)+1 how can i graph this into slope intercept form

liraira [26]

Answer: y=3x--5

Step-by-step explanation: First simplify by distribution and lie terms to get:

y=3x-5

3 is your slope which means every time your y goes up three your x goes across one.

-5 is your y-intercept which means (0,-5) goes through your line

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3 years ago

A rectangle has the following vertices. Find the area of the rectangle. (9, −1), (−1, 7), (−5, 2), (5, −6)

stiks02 [169]

Answer: 82 sq. units .

Step-by-step explanation:

Let A (9, −1), B (−1, 7), C(−5, 2), D(5, −6) are the vertices of rectangle.

Then we plot them on graph ( as provided in attachment)

Length = AB $=\sqrt{(9+1)^2+(-1-7)^2}$ units [By distance formula : $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ ]

$=\sqrt{(10)^2+(-8)^2}=\sqrt{100+64}=\sqrt{164}=2\sqrt{41}$ units

Width = BC = $\sqrt{(-1+5)^2+(7-2)^2}$ units

$=\sqrt{4^2+5^2}\\\\=\sqrt{16+25}\\\\=\sqrt{41}$

Area = length x width

= $2\sqrt{41}\times\sqrt{41}=2\times41= 82\text{ sq. units}$

Hence, the area of the rectangle is 82 sq. units .

7 0

3 years ago

Place on,number line

Alex

A goes between -1 and -1/2

8 0

3 years ago

Read 2 more answers

8-6: MathXL for School: Practice & Problem Solving

notka56 [123]

Answer:

The Area of a circle is

$\pi {r}^{2}$

Therefore the Area of Circle A is

$\pi {8}^{2} \\ 201.06$

Area of Circle B is

$\pi {10}^{2} \\ 314.16$

Circle C

$\pi {14}^{2} \\ 615.75$

Circle D

$\pi {13}^{2} \\ 530.93$

3 0

3 years ago