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3 years ago

PLS HELP ASAP PLS PLSPLS What is the explicit formula for this sequence? 6, 2, -2, -6, ...

Mathematics

1 answer:

Marysya12 [62]3 years ago

5 0

Answer:

Step-by-step explanation:

this is just common sense. if you would have tried you could have easily answered this yourself.

the sequence starts with 6. that is a1.

so, the formula simply has to add "something" to 6.

therefore, A and D are out.

and then we see immediately that the sequence is built by subtracting 4 (or adding -4) for every step.

so, we need to add multiples of -4.

therefore, only B is correct (C adds multiples of +4).

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You earned a 75% on a test. You answered 24 questions correctly.How many questions were on the test?

iVinArrow [24]

Answer: 32questions

Step-by-step explanation:let the total number of test = x

Therefore: 24/x * 100 = 75

x = 24*100 / 75

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3 years ago

What two numbers multiply to 20 and add up to 17

Shalnov [3]

That is not possible, since 20 has the factors of 1,2,4,5,10, and 20. None of those add up to 17, maybe your question has a mistake in it. For further questions, you can message me. Hope this helps! Please rate brainiest answer.

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3 years ago

Determine the intercepts of the line. <br> -5x-4y=10

storchak [24]

Answer:

$x-intercept:(-2,0)\\\\y-intercept:(0,-\frac{5}{2})$

Step-by-step explanation:

The y-intercept is where x is 0 (0,y)

The x-intercept is where y is 0 (x,0)

Insert 0 as the value for x to find the corresponding y value:

$-5(0)-4y=10$

Simplify multiplication:

$0-4y=10\\\\-4y=10$

Isolate the variable. Divide both sides by 4:

$\frac{-4y}{4}=\frac{10}{4} \\\\-y=\frac{10}{4} \\\\-y=\frac{5}{2}$

Make the variable positive. Multiply both sides by -1:

$-1(-y)=-1(\frac{5}{2})\\\\y=-\frac{5}{2}$

The y-intercept is at $(0,-\frac{5}{2})$ .

Insert 0 as the value for y to determine the value of x:

$-5x-4(0)=10$

Simplify multiplication:

$-5x-0=10\\\\-5x=10$

Isolate x. Divide both sides by 5:

$\frac{-5x}{5} =\frac{10}{5} \\\\-x=2$

Multiply both sides by -1:

$-1(-x)=-1(2)\\\\x=-2$

The x-intercept is at $(-2,0)$ .

:Done

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3 years ago

Please help! Will be marking brainliest!

Ludmilka [50]

Answer:

integer and rational

Step-by-step explanation:

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3 years ago

Subtract.

MrRissso [65]

Answer:

5x^2 -3x +9

Step-by-step explanation:

(5x2 + 7) - (3x - 2)

Distribute the minus sign

5x^2 +7 -3x +2

Combine like terms

5x^2 -3x +9

6 0

3 years ago