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OlgaM077 [116]
2 years ago
14

Find the answer to: (k+3)-(3k-5)=

Mathematics
1 answer:
Degger [83]2 years ago
4 0

Answer:

-2k + 8

Step-by-step explanation:

Distribute the Negative Sign:

=k + 3 + −1(3k − 5)

=k + 3 + −1(3k) + (−1)(−5)

=k + 3 + −3k + 5

Combine Like Terms:

=k + 3 + −3k + 5

=(k + −3k) + (3 + 5)

=−2k + 8

Hope this helps!

brainliest?

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omar tariq has a credit card that uses the unpaid balance method to compute the finance charge. His monthly periodic rate is 2.4
german
The answer is B) previous balance
7 0
3 years ago
Determine whether the integral is convergent or divergent. ∫[infinity] 2 e^−1/x / x^2 dx : O Convergent O divergent If it is con
monitta

Let f(x)=e^{-1/x}. Then f'(x)=\frac1{x^2}e^{-1/x}>0 for all x\ge2, so f is strictly increasing. As x\to\infty, e^{-1/x}\to e^0=1, so f is bounded above by 1. This is to say,

e^{-1/x}

and the integral of \frac1{x^2} converges over the same domain, so this integral must also converge by comparison.

We have, by setting y=-\frac1x,

\displaystyle\int_2^\infty\frac{e^{-1/x}}{x^2}\,\mathrm dx=\int_{-1/2}^0e^y\,\mathrm dy=e^0-e^{-1/2}=1-\frac1{\sqrt e}

8 0
3 years ago
Mrs. Benton is making treat bags for her class. She has 245 Chocolate Twisters. If she puts 9 Chocolate Twisters in each treat b
Alex17521 [72]

Answer:

She can make 27 bags

2 pieces of candy is left over

Step-by-step explanation:

She has 245 Chocolate Twisters.

she puts 9 Chocolate Twisters in each treat bag,

1 bag hold 9 chocolates

9 chocolates = 1 bag

So 245 chocolates in how many bags

Divide 245 by 9

use long division

                       2 7 -----------> Quotient

                   ------------------------------------

          9           245

                        18                           (subtract it)

                   -------------------------

                          65

                          63              (subtract it)

                ----------------------------

                            2 -----------> remainder

She can make 27 bags

2 pieces of candy is left over

                       

8 0
3 years ago
Read 2 more answers
these are the number of baskets joe scored in his basketball game. what is the mean of the data set? 3,3,4,4,8,8,8,10,12,20
Viktor [21]

Answer:

8

Step-by-step explanation:

To find the mean, add all the numbers together and divide by the amount of numbers there are.

(3 + 3 + 4 + 4 + 8 + 8 + 8 + 10 + 12 + 20)/10 = answer

Simplify. First, solve the parenthesis, then divide.

(80)/10 = answer

8 = answer

8 is the mean of the data set.

~

8 0
3 years ago
Read 2 more answers
A polynomial function of degree 4 with real coefficients could have -3, 1+i, 1-i, and -3,7i as its zeros. true or false
Novosadov [1.4K]

Using complex numbers concepts, it is found that the statement is false.

When a complex number is a root of a polynomial function, it's conjugate also has to be.

  • A complex number has the format a + bi, and it's conjugate is a - bi.

In this problem:

  • Real root -3.
  • Complex-conjugate roots 1 + i and 1 - i.
  • Complex root -3 + 7i.

The conjugate of -3 + 7i also has to be a root, which would make the polynomial of the 5th degree, as it would have 5 roots, thus, the statement is false.

A similar problem is given at brainly.com/question/24450834

5 0
3 years ago
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