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irina [24]
3 years ago
12

What is 23b^4+(-10b^4) simplified?

Mathematics
2 answers:
saw5 [17]3 years ago
7 0
23b^4+(-10b^4)
23b^4-10b^4)
13b^4
DiKsa [7]3 years ago
4 0
The answer would be 13b^4.
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Jessie estimates the weight of her cat to be 10 pounds. The actual weight of the cat is 13.75 pounds. find the percent error.
romanna [79]

Answer:

\large \boxed{27 \, \%} }

Step-by-step explanation:

\begin{array}{rcl}\text{Percent error}&= &\dfrac{\lvert \text{Measured - Actual}\lvert}{ \text{Actual}} \times100 \,\%\\\\& = & \dfrac{\lvert 10 - 13.75\lvert}{13.75} \times 100 \, \% \\\\& = & \dfrac{\lvert -3.75\lvert}{13.75} \times 100 \, \%\\ \\& = & \dfrac{3.75}{13.75} \times 100 \,\%\\\\& = & 0.27 \times 100 \, \%\\& = & \mathbf{27 \, \%}\\\end{array}\\\text{The percent error is $\large \boxed{\mathbf{27 \, \%} }$}

3 0
3 years ago
You want to put $4,000 in a simple interest account. It has a 2.5% annual interest rate. How long will it take you to earn $500
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5 years to earn $500
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3 years ago
Which expression is equivalent to  4 7/8 ÷ 4 1/4​
cupoosta [38]

Answer:

Improper fraction: 39/34

Proper fraction: 1 5/34

Decimal: 1.147 (rounded to the nearest thousandths).

Step-by-step explanation:

Solve each expression given, if it has the same result, then the expressions is equivalent. Solve the given expression:

4 7/8 ÷ 4 1/4

First, change all fractions into improper fractions:

4 7/8 = (4 * 8)/8 + 7/8 = 32/8 + 7/8 = 39/8

4 1/4 = (4 * 4)/4  + 1/4 = 16/4 + 1/4 = 17/4

Next, find common denominators. Note that what you do to the denominator, you must do the numerator:

(17/4) * (2/2) = (34/8)

39/8 ÷ 17/4

Solve. First, change the division sign into multiplication, and then flip the second fraction:

39/8 ÷ 17/4 = 39/8 x 4/17

Multiply straight across:

39/8 x 4/17 = (39 x 4)/(8 x 17) = 156/136 = 39/34 (simplified), or 1 5/34.

~

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3 years ago
Rewrite this expression in addition<br> -8-(-12)-7
Andrej [43]

Answer:

-8+(+12)+)

Step-by-step explanation:

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3 years ago
The access code of a garage door consists of 4 digits (0 through 9). All digits can be repeated.
nadya68 [22]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
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