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konstantin123 [22]
3 years ago
10

What is the sum of

2012x%20%2B%2012%20%5C%5C%20" id="TexFormula1" title=" 5 {x}^{2} + 3x - 7 \: and \: 12x + 12 \\ " alt=" 5 {x}^{2} + 3x - 7 \: and \: 12x + 12 \\ " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Alex3 years ago
7 0

Answer:

5x² + 15x + 5  

Step-by-step explanation:

Here's one way to do it.

Put corresponding powers of x beneath each other and add the similar terms.

5x² +   3x  -  7

<u>          12x + 12 </u>

5x² + 15x +  5

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You have a part time job in your junior year of high school. You need to borrow $2,000 to purchase a used car to drive to work.
VARVARA [1.3K]

Answer:

$149.66

Step-by-step explanation:

Step 1

Calculate Total Amount payable to the bank using compound interest

Total Amount payable (A) =

P(1 + r/n)^nt

P = Principal = $2000

r = Interest rate = 9% = 0.09

n = compounding interest = quarterly = 4

t = time in years = 2

Total Amount payable

= 2000(1 + 0.09/4)^0.09 × 2

A = $ 2,389.66

Interest = A - Principal

= $ 2,389.66 - $ 2,000.00

I (interest) = $ 389.66

Step 2

Calculate the Total amount payable to his uncle using simple interest.

Total Amount (A) = P(1 + rt)

P = Principal = $2000

r = Interest rate = 6% = 0.06

t = time in years = 2

A = 2000(1 + 0.06 × 2)

A = $2,240

A - Principal

= $ 2,240 - $ 2,000.

I (interest) = $240

Step 3

The amount of money you will save by borrowing the money from your uncle is calculated as:

Amount payable to the bank - Amount payable to your uncle

= $ 2,389.66 - $2,240

= $149.66

Therefore, the amount of money you will save by borrowing the money from your uncle is $149.66

3 0
3 years ago
What is the slope of the line through (-1, -7) and (3, 9)?
monitta

Answer:

slope = 4

Step-by-step explanation:

.................

3 0
2 years ago
Michael found a jake at the bank he said that he went there every 45 days and Michael says he went every 30 days .when will they
Ahat [919]
They will see each other every 30 days but won't every 15 days
5 0
3 years ago
Read 2 more answers
Determine the equation from the table listed below<br><br> Will give Brainly
yanalaym [24]

Answer:

It's c) y = 15x +200

Step-by-step explanation:

First divide the total cost by the number of students using two values of the table:

1500/100 = 15

This is the number that multiply x in the equation.

In the options given, there is just one equation that have 15 multipling x, so that must be the answer

5 0
2 years ago
What is the slop intercept form of a line that passes threw (4,-4) and (8, -10)
BigorU [14]

For this case we have that by definition, the equation of a line of the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

We have two points through which the line passes, so we can find the slope:

(x_ {1}, y_ {1}) :( 4, -4)\\(x_ {2}, y_ {2}) :( 8, -10)\\m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-10 - (- 4)} {8-4} = \frac {-10+ 4} {4} = \frac {-6} {4} = - \frac {3} {2}

Thus, the equation is of the form:

y = - \frac {3} {2} x + b

We substitute one of the points and find "b":

-4 = - \frac {3} {2} (4) + b\\-4 = - \frac {12} {2} + b\\-4 + 6 = b\\b = 2

Finally, the equation is of the form:

y = - \frac {3} {2} +2

ANswer:

y = - \frac {3} {2} +2

4 0
2 years ago
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