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ss7ja [257]
3 years ago
5

Find the sum of the first 15 numbers in a sequence that has a1 = 6 and d=4

Mathematics
2 answers:
Olin [163]3 years ago
8 0
Your answer is going to be C-158
lakkis [162]3 years ago
6 0

Answer:

the correct answer is D. 510

Step-by-step explanation:

158 IS WRONG!

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kirill115 [55]

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that really good

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4 0
3 years ago
9/18 + 1/3 <br> Show all work
balu736 [363]

Answer:

5/6

5/6 Is the simplified answer the unsimplified answer is 15/18

7 0
3 years ago
Read 2 more answers
Noah has a summer tree-trimming business. Based on experience, Noah knows that his profit, P, in dollars, can be modelled by = −
crimeas [40]

Solving quadratic equations, it is found that he needs to charge:

1. He needs to charge $40 to break even.

2. He needs to charge $30 for a profit of $600.

<h3>What is a quadratic function?</h3>

A quadratic function is given according to the following rule:

y = ax^2 + bx + c

The solutions are:

  • x_1 = \frac{-b + \sqrt{\Delta}}{2a}
  • x_2 = \frac{-b - \sqrt{\Delta}}{2a}

In which:

\Delta = b^2 - 4ac

The profit equation in this problem is:

P(x) = -3x² + 150x - 1200.

He breaks even when P(x) = 0, hence:

-3x² + 150x - 1200 = 0.

The coefficients are a = -3, b = 150, c = -1200, hence:

  • \Delta = 150^2 - 4(-3)(-1200) = 8100
  • x_1 = \frac{-150 + \sqrt{8100}}{-6}
  • x_2 = \frac{-150 - \sqrt{8100}}{-6} = 40

He needs to charge $40 to break even.

For a profit of $600, we have that P(x) = 600, hence:

-3x² + 150x - 1200 = 600.

-3x² + 150x - 1800 = 0.

The coefficients are a = -3, b = 150, c = -1800, hence:

  • \Delta = 150^2 - 4(-3)(-1800) = 900
  • x_1 = \frac{-150 + \sqrt{900}}{-6}
  • x_2 = \frac{-150 - \sqrt{900}}{-6} = 30

He needs to charge $30 for a profit of $600.

More can be learned about quadratic equations at brainly.com/question/24737967

#SPJ1

6 0
2 years ago
What is (4ab^0c^9)^3 ?​
fomenos

Answer:

  64a³c²⁷

Step-by-step explanation:

The expression inside parentheses can be simplified by noting that b^0 = 1. Then you have ...

  (4ac^9)^3

The rules of exponents say the exponent outside applies to each of the inside factors. For c^9, the exponents multiply.

Here are the applicable rules:

  (ab)^c = (a^c)(b^c)

  (a^b)^c = a^(b·c)

__

  (4ac^9)^3 = 4^3·a^3·c^(9·3) = 64a^3c^27

3 0
3 years ago
True or false the measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair
enot [183]

THe given statement is " the measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair  " .

And in a linear pair, the sum of the measures of exterior angle and adjacent interior angle is 180.

But in the statement, it is given that the sum is 360 degree.

So the given statement is false .


7 0
3 years ago
Read 2 more answers
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