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3 years ago

Find the first 4 terms of the sequence defined by this rule: f(n)=4n-7

Mathematics

1 answer:

tatiyna3 years ago

6 0

Answer:

-3, 1, 5, 9

Step-by-step explanation:

f(n) = 4n - 7

f(1) = 4(1) - 7

f(1) = 4 - 7

f(1) = -3

f(2) = 4(2) - 7

f(2) = 8 - 7

f(2) = 1

f(3) = 4(3) - 7

f(3) = 12 - 7

f(3) = 5

f(4) = 4(4) - 7

f(4) = 16 - 7

f(4) = 9

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Please solve this Screenshot/attachment that is included below, thanks!

amm1812

Answer:

1) A=5

Step-by-step explanation:

1) W should be greater than 1, so the only option that satisfies this is A which is 5.

(For the number line please look at the attachment)

I'm sorry, I don't know how to solve the second problem. I hope the first question helps. Sorry and Hope its clear.

6 0

2 years ago

Use the discriminant to determine the number of solutions and types of solutions for the quadratic equation, below. Then answer

Setler79 [48]

Answer:

A. Discriminant = 116

B. Number of solutions for the quadratic equation = 2

C. Type of solutions (circle one):Imaginary

D. Type of solutions (circle one):irrational

Step-by-step explanation:

The given quadratic equation is

${x}^{2} + 8x = 13$

We rewrite in standard form to get;

${x}^{2} + 8x - 13 = 0$

The discriminant is

$D = {b}^{2} - 4ac$

where a=1, b=8, c=-13

We substitute to get:

$D = {8}^{2} - 4 \times 1 \times - 13$

$D = 64 + 52$

$D = 116$

Since the discriminant is great than zero, we have two distinct real roots

6 0

3 years ago

(4w-3)^2<br> what would be the answer to that?? please explain, i’m so confused.

yarga [219]

Answer:

16w^2 - 24w + 9

Step-by-step explanation:

To simplify this, you would use the special product (a - b)^2 = a^2 - 2ab + b^2. We can correlate this with the given term so that,

a = 4w

and

b = 3

Now we just substitute into a^2 - 2ab + b^2

(4w)^2 - 2(4w)(3) + (3)^2

16w^2 - 24w + 9

7 0

3 years ago

Read 2 more answers

What is an equation of the line that passes through the point (3,-8) and has a slope of -2<br>

makvit [3.9K]

Answer:

y = -2x - 2

Step-by-step explanation:

Given:

m = -2

Slope-intercept:

y - y1 = m(x - x1)

y + 8 = -2(x - 3)

y + 8 = -2x + 6

y = -2x - 2

3 0

2 years ago

Which set of coordinates doesn’t represent the problem?

Semmy [17]

ThE answer is C, congrats

5 0

2 years ago