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chubhunter [2.5K]
4 years ago
9

5+\left(-11\right)-\left(-11\right)5+(−11)−(−11)5, plus, left parenthesis, minus, 11, right parenthesis, minus, left parenthesis

, minus, 11, right parenthesis.

Mathematics
1 answer:
NikAS [45]4 years ago
7 0

Answer: 5

Step-by-step explanation:

Hi, to answer this question we have to know that

We have to subtract when two different signs appear next to each other (-+ or +-)

We have to add when two of the same signs appear next to each other (++ or --)

So:

5+(-11)-(-11)

5-11+11

5

Feel free to ask for more if needed or if you did not understand something.

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The sum of two numbers is 27. One of the numbers is three more than the other. Find the numbers,
bonufazy [111]

Answer:

12 and 15

Step-by-step explanation:

x + y = 27

x +3 = y

x = y - 3

y - 3 + y = 27

2y = 24

y = 12

7 0
3 years ago
Find the next 2 terms in the Geometric sequence 20,30,45 ...
DochEvi [55]

Answers:

The next two terms are 67.5 and 101.25 in that order.

===========================================

Explanation:

Divide the second term over the first to get 30/20 = 1.5

Divide the third term over the second term to get 45/30 = 1.5

The common ratio is 1.5, which means we multiply 1.5 by each term to get the next term

-------

fourth term = 1.5*(third term) = 1.5*45 = 67.5

fifth term = 1.5*(fourth term) = 1.5*67.5 = 101.25

-------

As a shortcut you can plug n = 4 and n = 5 into the function t(n) = 20*(1.5)^(n-1) to get the fourth and fifth terms respectively.

3 0
3 years ago
60°<br> 18<br> Solve for x. Round to the nearest<br> tenth.
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Answer:

You need to include a picture or add more o the question because I can't solve it without the rest of the problem. All I know is 60 degrees and 18. But what is the 18?

Step-by-step explanation:

5 0
3 years ago
2.5 meters cloth is $28.30the cost of 18 meters?
Butoxors [25]
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8 0
3 years ago
Read 2 more answers
The diagram shows a prism.
telo118 [61]

Answer:

Total surface area of the prism = 920 cm²

Step-by-step explanation:

Given prism has 2 similar triangular surfaces and 3 rectangular surfaces of different dimensions.

Area of one triangular side = \frac{1}{2}(\text{Base})(\text{Height})

Area of 2 similar sides = Base × Height

                                     = 8 × 15

                                     = 120 cm²

Area of rectangular side with dimensions 17cm × 20cm

Area of the side = 17 × 20 = 340 cm²

Area of the second rectangular side with dimensions 8cm × 20cm

Area of the side = 8 × 20 = 160 cm²

Area of third rectangular side with dimensions 20cm × 15cm

Area of the side = 20 × 15 = 300 cm²

Total surface area of the given triangular prism = 120 + 340 + 160 + 300

                                                                               = 920 cm²

6 0
3 years ago
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