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olasank [31]
3 years ago
8

Solve 10n^2+4n+15n+6​

Mathematics
1 answer:
Allushta [10]3 years ago
4 0

Answer:

Step-by-step explanation:

10n^2 +4n+15n+6 [Add the like terms]

10n^2 +19n +6

Hope this helps!

Mark brainliest if you think i helped! Would really appreciate!

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8. If 30 cents out of every 1 dollar goes to taxes and the rest is net income, what's the
aniked [119]

Answer:

  • D. 3:7

Step-by-step explanation:

1 dollar = 30 cents tax + 70 cents net income

<u>The ratio of taxes to net income:</u>

  • 30 : 70 =
  • 3 : 7

Correct choice is D

4 0
2 years ago
Read 2 more answers
R=x^2/y <br> x=3.8 times 10^5 <br> y=5.9 times 10^4 <br> work out the value of r
Zinaida [17]

Answer:

  2.4×10^6

Step-by-step explanation:

Put the numbers where the variables are and do the arithmetic. You can enter the numbers in scientific notation into your (scientific) calculator and have it show you the result in the same format.

  r = (3.8×10^5)^2/(5.9×10^4) . . . . . denominator parentheses are required

Please note that in the above expression, parentheses are required around the denominator number. This is because it is a product of two numbers. In your pocket calculator or spreadsheet, you can enter that value as a single number (not a product). Parentheses are not required when you can do that.

  r = (3.8²/5.9)×10^(5·2-4) ≈ 2.4×10^6

___

The "exact" value is a repeating decimal with a long repeat. We have rounded to 2 significant digits here because the input numbers have that number of significant digits.

7 0
2 years ago
Approximately how much money would Manny have if he invested $1,200 at an interest rate
quester [9]

Answer:

$1,701.64

Step-by-step explanation:

(see attached for reference)

recall that for compound interest, the following formula applies:

A = P [1 + (r/n) ] ^ (nt), where

A = final amount (we are asked to find this)

P = Principal amount = $1,200

r = interest rate = 5% = 0.05

t = 7 years

n = 12

Substituting these into the equation,

A = 1200 [1 + (0.05/12) ] ^ [(12)(7)]

A =  $1,701.64

6 0
3 years ago
$819.73 insurance as a percentage of $1192.64
nordsb [41]
$819.73/$1192.64 × 100% ≈ 68.73%
6 0
3 years ago
Free response question please asap !
koban [17]

Answer:

416 s correct

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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