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Serga [27]
3 years ago
10

Pleaseeeeeeeee help me

Mathematics
1 answer:
Maslowich3 years ago
3 0

Answer:

a₅ = 25

Step-by-step explanation:

The common difference (d) of the sequence is

d = a₂ - a₁ = 7 - 1 = 6

To obtain a term in the sequence add 6 to the previous term, so

a₄ = a₃ + 6 = 13 + 6 = 19

a₅ = a₄ + 6 = 19 + 6 = 25

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Part 1: Multiple Choice
Keith_Richards [23]

Option C: (0,125) is the y - intercept.

Explanation:

The given function is f(x)=x^3-5x^2-25x+125

We need to determine the y - intercept.

<u>The value of y - intercept:</u>

The y - intercept is the value of y when x = 0

The y - intercept of the function can be determined by substituting x = 0 in the function.

Hence, let us substitute x = 0 in the function f(x)=x^3-5x^2-25x+125, we have,

f(x)=(0)^3-5(0)^2-25(0)+125

Simplifying the terms, we get;

f(x)=0-5(0)-25(0)+125

f(x)=0-0-0+125

f(x)=125

Thus, the value of y is 125.

Hence, the y - intercept is 125.

Therefore, the coordinates of the y - intercept are (0,125)

Hence, Option C is the correct answer.

7 0
3 years ago
Y varies directly with x, and y = 5 when x = 4. What is the value of x when y = 8?
Tomtit [17]
As y varies directly with x, there is a proportionality constant. As x increases by that certain constant, y also increases. We equate:
y = kx
where k = proportionality constant.
Given the condition, y = 5 when x = 4, then we solve for k:
5 = k(4)
k = 5/4 or 1.25
When y = 8, then
8 = (5/4)(x)
x = 8/(5/4) = (8)(4/5) = 32/5 or 6.4 (ANSWER)
7 0
3 years ago
Which of the following rotational symmetry is applied to the regular not​
olya-2409 [2.1K]

9514 1404 393

Answer:

  • yes
  • yes

Step-by-step explanation:

A regular nonagon has vertices that are 360°/9 = 40° apart. Any rotation by a multiple of 40° will make the figure indistinguishable from the original.

Rotational symmetry of 40° applies.

Rotational symmetry of 200° applies.

6 0
3 years ago
To make 1 1/2 dozen muffins, a recipe uses 3 1/2 cups of flour.
zimovet [89]

Answer:

the answer is 2 1/3 or There is 2\frac{11}{14}\ cups needed to make every dozen of muffins.

Step-by-step explanation:

brainly.com/question/6703040

7 0
3 years ago
Please help.<br> Is algebra.
Vlad1618 [11]
? = 2. Thats the only one i got that equals 8xy^2. Not sure if its right tho.
4 0
3 years ago
Read 2 more answers
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