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Aleksandr-060686 [28]
3 years ago
5

What binomial must he added to (3r+14) to make the sum of the two polynomials equal (8r-6)

Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

(5r - 20)

Step-by-step explanation:

(3r + 14) + (Ar + B) = (8r - 6)

B = -6 - 14 = -20

A = 8 - 3 = 5

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Solve these equations to find x and y: 2x+18=38, 3y+11=38

2x+18=38\\2x=20\\x=10

3y+11=38\\3y=27\\y=9

5 0
3 years ago
Haley is camping and needs to go from the campground to the waterfall. She hikes 3 miles north and 7 miles east. What is the sho
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Answer:

7.61 miles

Step-by-step explanation:

Given that,

Haley hikes 3 miles north and 7 miles east.

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It can be calculated as follows :

D=\sqrt{3^2+7^2}\\D=7.61\ miles

So, the shortest distance from the campground to the waterfall is 7.61 miles.

3 0
3 years ago
$35.24<br> with a<br> 20% tip
adelina 88 [10]
$42.29
Multiply $35.24 by .2 and add that to the original bill.
4 0
3 years ago
Read 2 more answers
John is interested in purchasing a multi-office building containing five offices. The current owner provides the following proba
Elenna [48]

Answer:

Option B.

Step-by-step explanation:

The given table is:

Number of Lease Offices :  0           1         2       3        4         5

Probability                         : 5/18     1/4     1/9    1/18     2/9      1/12

The expected probability is

Expected probability = \sum_{i=0}^5 x_{i}p(x_i)

Expected probability = 0p(0)+1P(1)+2P(2)+3P(3)+4P(4)+5P(5)

Expected probability = 0\cdot (\frac{5}{18})+1\cdot (\frac{1}{4})+2\cdot (\frac{1}{9})+3\cdot (\frac{1}{18})+4\cdot (\frac{2}{9})+5\cdot (\frac{1}{12})=\frac{35}{18}

It is given that the yearly lease = $12,000.

The yearly leases for the whole building in a given year is

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Therefore, the correct option is B.

3 0
3 years ago
The price of an item has been reduced by 30%. The original price was $30. What is the price of the item now ?
Anit [1.1K]

Answer:

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Step-by-step explanation:

30 multiply by 30 and divide by 100

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