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PtichkaEL [24]
3 years ago
10

Solve each of the following addition and subtraction problems.–12 + 19 = ?

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
5 0

Answer:

It equals 7!

Step-by-step explanation:

count from -12 backwards 19 times, and that will be your answer!

Or you could simply just subtract 19-12=7!

Hope This Helps! :-)

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What is the sum of an infinite geometric series if the first term is 156 and the common ratio is 2⁄3?
Zanzabum

Answer:

<h2>B. 468</h2>

Step-by-step explanation:

We have

a_1=156,\ r=\dfrac{2}{3}

If |r| < 1, then the formula of a sum of an infinite geometric sequence is:

S=\dfrac{a_1}{1-r}

Substitute:

S=\dfrac{156}{1-\frac{2}{3}}=\dfrac{156}{\frac{1}{3}}=156\cdot\dfrac{3}{1}=468

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Answer:

(-2,-1)

Step-by-step explanation:

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Solve for each unknown angle measure given that ℓ1∥ℓ2.
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Step-by-step explanation:

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The sum of a number n and 4 is 10. What is the value of the sum of n and -1?
katrin [286]

Answer:

The value of the sum of n and -1=5

Step-by-step explanation:

Step 1

Get the value of n using the equation below;

The sum of n and 4 is 10 can be expressed in equation form as follows;

n+4=10...equation 1

solving for n;

n=10-4

n=6

The value for n=6

Step 2

Express the sum of n and -1 as follows

n+(-1)=unknown...equation 2

using the value of n solved in equation 1 in equation 2

replace using;

n=6

6+(-1)=6-1=5

The value of the sum of n and -1=5

5 0
3 years ago
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