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Marrrta [24]
2 years ago
13

Find the 90th term of the arithmetic sequence, 8.9, 13.6, 18.3, 23, …

Mathematics
1 answer:
Ronch [10]2 years ago
4 0

Answer:427.2

Step-by-step explanation:

8.9 13.6 18.3

it goes up in 4.7

4.7n

8.9-4.7=4.2

4.7n+4.2

4.7(90)+4.2

423+4.2=427.2

Hopefully it is correct :)

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Estimate the sum of 4.27 and 9.91 by first rounding each number to the nearest whole number.
mart [117]
4.27 + 9.91

Round them to the nearest whole number.

4.27 ⇒ 4
9.91 ⇒ 10

Now you can add them up.

4 + 10 = 14
4 0
3 years ago
What is the solution to the system below? <br> 3x + y = 11<br> y = x + 3
alexgriva [62]

Answer:

x = 2

y = 5

Step-by-step explanation:

3x + y = 11 equation (1)

-x + y = 3 multiply this equation by -1

x - y = -3 equation (2)

by adding 2 equations

4x = 8

x = 2

by sub. in Equation (2)

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5 0
2 years ago
What is the approximate volume of this sphere?
Lelu [443]

Answer: The correct answer is B. 523.3...cm^3

Step-by-step explanation:

4/3*pi*r^3 is the formula

first, divide the diameter by 2 to get the radius, now, you will begin solving.

4/3*5^3*3.14

5*5*5=125

4/3*125*3.14

125*3.14=392.5

4/3*392.5

523.3...

6 0
2 years ago
State if the function is a growth or decay and the factor <br><br> y=2x
Jet001 [13]

Answer:

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Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Ed is 7 years older then ted Ed's age is also 3/2 times ted's age how old are ed and ted ​
Rasek [7]

Answer:

if i'm right ted is 14 and ed is 21

Step-by-step explanation:

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5 0
3 years ago
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