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enot [183]
3 years ago
12

What is (4n + 3n2 + 2) - (n - 6n

Mathematics
1 answer:
Masja [62]3 years ago
4 0

Step-by-step explanation:

4n + 3n2 + 2 + n + 6n – 1 Expand with – 1

3n2 + 4n + n + 6n + 2 – 1 Grouped liked terms

3n2 + 11n – 1

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Can someone help me with all of them?
Mila [183]

Answer:

To calculate annual compound interest, multiply the original amount of your investment or loan, or principal, by the annual interest rate. Add that amount to the principal, then multiply by the interest rate again to get the second year's compounding interest

Step-by-step explanation:

A = P (1+ r/n) ^nt

A = final amount is found if you input 12 months at r

P = initial principal balance  = $100 if every month

r = interest rate then interest rate will be 12 month

n = number of times interest applied per time period  = 1

t = number of time periods elapsed t = eg 10

6 0
3 years ago
Triangle WXY is similar to triangle ZYV
charle [14.2K]
There is no picture of the triangle
7 0
3 years ago
Let f(x) = 5x + 2 and g(x) = x² + 2x + 5. Evaluate the following.
pshichka [43]

Answer:

A. 7

B. -3

C. 8

D. 13

E. 5a+17

F. a^{2} + 8a + 20

Step-by-step explanation:

A. f(1) = 5*1 +2, which equals 7

B. f(-1)= 5(-1)+2 which equals -3

C. g(-3)= (-3)^2+ 2(-3)+ 5 = 9- 6+ 5 = 8.

D. g(2)= (2)^2+ 2(2)+ 5= 4+ 4+ 5= 13.

E. f(a+3)= 5(a+3)+2 = 5a+ 15+ 2= 5a+ 17.

F. g(a+3)= (a+3)^2+ 2(a+3)+ 5= a^{2}+ 6a+ 9+ 2a+ 6+ 5= a^{2}+ 8a+ 20.

5 0
3 years ago
I’ve been trying on this question but in struggling. please help me
snow_lady [41]

Answer:

x \geq 15

Step-by-step explanation:

Solving an inequality is very similar to solving an equation, one uses inverse operations. The only major difference between the two is that when one multiplies or divides an inequality by a negative number, one must remember to flip the inequality sign to ensure that the inequality remains true. In this situation, such a rule does not come into play.

\frac{x}{5} - 8 \geq -5

Inverse operations,

\frac{x}{5}-8 \geq -5\\              +8\\\\\frac{x}{5} \geq 3\\*5\\\\x \geq 15

5 0
3 years ago
The height of the triangle is 4 meters longer than twice its base. find the height if the area of the triangle is 80 square mete
Marrrta [24]

Answer:

The height is 20 meters

Step-by-step explanation:

First set up the equation (Area)80=bh/2 then set up another equation, (height) h=4+2b (base). After this you can substitute h in the equation to end up with 80=(b(2b+4))/2 simplify it to get 80=b^2+2b then solve. The base is 8 meters, plug into the formula that we made before and you find the height is 20 meters.

3 0
3 years ago
Read 2 more answers
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