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3 years ago

Can someone please help

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

Answer: dotted

Step-by-step explanation:

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216q^3+15q^3 please help me solve it

katrin [286]

Answer:

231q^3

Step-by-step explanation:

Just add them together. They have the same expressions. Whenever you see a number with an ending similarly to another such as 3x and 2x, they can add together.

This is no different. If something is 6x^2 and another is 7x^2, you would add them to get 13x^2.

3 0

4 years ago

Read 2 more answers

You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 47%. With Ha : p

rodikova [14]

Answer:

The p-value is 0.0229

Step-by-step explanation:

With $H_{a}: p > 0.47$ we have an upper-tail alternative. Because the p-value is defined as the probability of getting a value at least as extreme as the value observed. The observed value is given by the test statistic z = 1.997 which comes from a standard normal distribution. Therefore, we compute the p-value in the following way P(Z > 1.997) = 0.0229, i.e., the p-value is 0.0229

3 0

3 years ago

Write an e explicit formula for an, the nth term of the sequence 22, 19, 16, ...<br>

alexira [117]

Answer:

$a_{n} = 22 + (-3)(n - 1)$

Step-by-step explanation:

The first term is 22. It looks like each term after that is the term before, plus a negative 3.

a-sub-one = 22

common difference = d= -3

Formula for $a_{n}$ :

$a_{n} = 22 + (-3)(n - 1)$ = 25 - 3n

4 0

3 years ago

I do not know if is a function or not. Please explain

bezimeni [28]

It is a function because in a function the x's do not repeat. So since there are no two numbers in the x column that are the same, yes it is a function.

8 0

3 years ago

Which of these systems of linear equations has no solution? A. 2 x + 8 y = 15. 4 x + 16 y = 30. 2 x minus B. y = 18. 4 x + 2 y =

Ilya [14]

Answer:

D. 4 x minus 3 y = 16. 8 x minus 6 y = 34

Step-by-step explanation:

A. 2 x + 8 y = 15. 4 x + 16 y = 30.

Multiply the first equation by 2

4x+16y = 30 This is identical to the second equation so there are infinite solutions

B. 2 x - y = 18. 4 x + 2 y = 38.

Multiply the first equation by 2

4x -2y = 36. Add to the second equation 8x = 74 so there is one solution

C. 4 x + 7 y = 17. 8 x minus 14 y = 36.

Multiply the first equation by 2

8x +14y = 34 Add this to the second equation 16x = 70 There is one solution

D. 4 x minus 3 y = 16. 8 x minus 6 y = 34.

Multiply the first equation by 2

8x - 6y = 32 Subtract this from the second equation 8x - 6y = 34

0 = 2

This is never true so there is no solution

7 0

3 years ago