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LiRa [457]
3 years ago
7

Find the area of the circle. use 22/7 for pie

Mathematics
1 answer:
kherson [118]3 years ago
7 0

Answer:  2464 in²

Step-by-step explanation: The formula for the area of a circle is

A = πr²

The given radius is 28 inches.

Square that 28 × 28 = 784 square inches.

Then multiply by pi.

22/7 × 784 = 2464 square inches.

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Draw a picture to show the product of 4:7 x 3. Then write the product
Hoochie [10]

Answer:

¹²/₇

Step-by-step explanation:

Model ⁴/₇ × 3

Assume that you have three pies, each dived into seven slices.

There are only four slices remaining in each pie, that is, there is ⁴/₇ pie in each pie plate

The picture represents ⁴/₇ × 3.  

Model the product

Now, transfer slices to get as many filled pie plates as possible.

Count the total slices.

You have 12 slices, and each slice represents ⅐ of a pie.

You have ¹²/₇  pie.

∴ ⁴/₇ × 3 = ¹²/₇

6 0
3 years ago
If you improve your credit score to good and paid $1500 on your $12,465 purchase how much interest could you save in the first m
Gennadij [26K]

Answer:

Step-by-step explanation:

The amount your credit score improves depends a lot on how high your utilization was in the first place. If you're already close to maxing out your credit cards, your credit score could jump 10 points or more when you pay off credit card balances completely.

8 0
3 years ago
Pls help it’s due today
IgorLugansk [536]

Answer: y = 2/1x + 2

Step-by-step explanation:

A slope of 2 means rising 2 and run 1 on a graph. This would make x = 2/1. The + 2 allows the line to pass through (0,2) and therefore it will also pass through (-2,-2).

4 0
3 years ago
Sophia determined that the expression Negative (4 x minus 5) + 2 (x minus 3) is equivalent to –2x – 5 by using the steps below.
strojnjashka [21]

Answer:

She is not correct because she did not substitute the same number in both expressions in Step 1

Step-by-step explanation:

CASE 1: substitute 1 for x  to both sides of the equations

L.H.S

-(4x-5)+2(x-3)

-(4 (1) - 5)+ 2(1-3) = - (-1) + 2(-2) = 1 - 4 = -3

R.H.S

-2x - 5

-2(1) - 5 = -2-5 = -7

Hence for x= 1

-(4x-5)+2(x-3) ≠ -2x -5

Because -3 ≠ -7

CASE 2: substitute -1 for x  to both sides of the equations

L.H.S

-(4x-5)+2(x-3)

-(4 (-1) - 5)+ 2(-1-3) = - (-9) + 2(-4) = 9 - 8 = 1

R.H.S

-2x - 5

-2(-1) - 5 = 2-5 = -3

Hence for x= -1

-(4x-5)+2(x-3) ≠ -2x -5

Because 1 ≠ -3

Answer:

She is not correct because she did not substitute the same number in both expressions in Step 1

6 0
3 years ago
Read 2 more answers
Write a function in terms of t that represents the situation.
yuradex [85]

Given that opulation of 100,000 decreases by 2% each year.

Now question says to write a function in terms of t that represents the situation.

Question is talking about population decrease so we can apply decay formula. which is given by:

P(t)=P_0(1-r)^t

Where A is the population at any time t.

P_0 is the initial population so P_0=100000

r is the rate of decrease so r=2%=0.02

t is the number of years

Now plug those values, we get:

P(t)=100000(1-0.02)^t

P(t)=100000(0.98)^t

Hence required function is P(t)=100000(0.98)^t.


6 0
3 years ago
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