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enyata [817]
2 years ago
6

The sum of the polynomials 6x3 + 8x2 – 2x + 4 and 10x3 + x2 + 11x + 9 is

Mathematics
1 answer:
faltersainse [42]2 years ago
4 0

Answer:

16x^2 + 9x^2 + 9x + 13.

Step-by-step explanation:

6x^3 + 8x^2 – 2x + 4 +10x^3 + x^2 + 11x + 9

Bringing like terms together:

= 6x^3 + 10x^3 + 8x^2 + x^2 - 2x + 11x + 4 + 9

= 16x^2 + 9x^2 + 9x + 13.  (answer).

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Kyle's height increased 17 % last year and 12% this year. What is the total percent increase ?
Advocard [28]

Answer:

31.04%

Step-by-step explanation:

So he increased 17%, then increased 12%.

When he increased by 17%, his height was 117%, relative to his former height.  12% of 117% is 14.04%

So he increase 17%, then increased 14.04% ( of his original height) so his total growth was 31.04%

6 0
3 years ago
I need help plz!!!!<br> I need help plz!!!
butalik [34]

Answer:

Step-by-step explanation:

In school i did these but i have no clue how to do them.I will try though:)

5 0
2 years ago
Phil can afford $200 a month for 5 years for a car loan. if the interest rate is 7.5 percent, how much can he afford to borrow t
madreJ [45]
200 per month for 5 years = 12,000
Phil can (at most) pay 12,000 for the car loan.
That would be the payment total.
So, how do we solve for the PRINCIPAL?
Looking at the attached formula, we see the
principal = Total - Total * ((1 +r)^-n) / r * n
where n = # of payments = 5 year * 12 months = 60 and
rate / 1.200 = 7.5/1,200 = .00625
 
principal = [12,000 - 12,000 * (1.00625)^-60] / .375
principal = [12,000 - 12,000 * <span> <span> <span> 0.6880918239 </span> </span> </span> ] / .375
principal = [12,000 - <span> <span> <span> 8,257.1018863488] / .375
</span></span></span>principal = <span> <span> <span> 3,742.</span></span></span>90 / .375
principal = 9,981.06

Source:
http://www.1728.org/loanfrm4.htm


6 0
3 years ago
Read 2 more answers
Translate (3, – 4) down 3 units.<br> Then reflect the result over the y-axis.
Greeley [361]

Answer:

Step-by-step explanation:

Best advice: make a sketch (which I can't do here).

When you reflect in the x axis, only the y value changes...so (3, -4) reflects to (3,4).

Translating down (i.e. in the negative direction) again means the x value (the abscissa) doesn't change, only the y value (the ordinate)...so the final value of the point is (3,1).

3 0
2 years ago
Jessica and Jonathan do some research to gather all their ingredients and figure out their costs. As shown in the table below, t
tiny-mole [99]

Answer:

4.5 cups

Step-by-step explanation:

5 0
2 years ago
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