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3 years ago

How would you read the expression, 2^3

Mathematics

2 answers:

lions [1.4K]3 years ago

8 0

2 to the power of 3

schepotkina [342]3 years ago

7 0

Answer:

two cubed, or two to the third power

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Ben is 20 years older than Daniel. Ben and Daniel first met two years ago. Three years ago, Ben was 3 times as old as Daniel.How

astraxan [27]

Let $b=$ Ben's age
Let $d=$ Daniel's age

We know:
$b=d+20$
and
$b-3=3(d-3)$

Plug the value of $b$ into the second equation:
$(d+20)-3=3(d-3)$
$\rightarrow d+17=3d-9$
$\rightarrow-2d+17=-9$
$\rightarrow-2d=-26$
$\rightarrow d=13$

Since Ben is 20 years older than Daniel, Ben is 13+20=33 years old.

3 0

3 years ago

you consistently deposit 250.00 into a savings account on the 15th of each month, and the amount earns a 2.5 APR How much is the

frosja888 [35]

Answer:

Balance of savings account at the end of 3rd month = $753.13

Step-by-step explanation:

Balance at the end of 1st month :

Principal = $250 , Time = 1 month , n = 12 , APR = 2.5%

$\text{Compound Interest = }Principal\times (1+\frac{rate}{n\times 100})^{n\times Time}\\\\=250\times (1+\frac{2.5}{12\times 100})^{12\times \frac{1}{12}}\\\\=\$250.52$

Balance at the end of second month :

Principal = 250 + 250.52

= 500.52

Time = 1 month, APR = 2.5%, n = 12

$\text{Compound Interest = }500.52\times (1+\frac{2.5}{12\times 100})^{12\times \frac{1}{12}}\\\\=\$501.56$

Balance at the end of third month :

Principal = 250 + 501.56

= 751.56

Time = 1 month, APR = 2.5%, n = 12

$\text{Compound Interest = }751.56\times (1+\frac{2.5}{12\times 100})^{12\times \frac{1}{12}}\\\\=\$753.13$

Hence, Balance of savings account at the end of 3rd month = $753.13

6 0

3 years ago

Hello can somebody help please

Basile [38]

Answer:

C 170

Step-by-step explanation:

3 0

3 years ago

What was the amount of the initial deposit that started this<br> savings account?

Nataly_w [17]

Answer:

Step-by-step explanation:

12) The amount of the initial deposit is $1000

13) the slope is (y2 - y1)/(x2 - x1)

Slope = (4000 - 3000)/(6 - 4)

Slope = 1000/2 = 500

The y intercept is the value of y when x is zero. Therefore,

y intercept = 1000.

14) The equation of a straight line represented in the slope intercept form is

y = mx + c

Where

m represents slope

c represents intercept

Therefore the equation is

y = 500x + 1000

15) The slope represents rate of change in the amount saved with respect to time in months.

4 0

4 years ago

If 70% of a number is 42 and 15% of the same number is 9, find 85% of that number.

BigorU [14]

Answer: 51

Step-by-step explanation:

let x be the number.

(70%)x = 42

0.7 x = 42

x = 60

we check 15% x 60 = 0.15 x 60 = 9, which is true.

85% of that number = 85% x 60 = 0.85 x 60 = 51.

6 0

3 years ago

Read 2 more answers