In a sequence of numbers, each term except the ﬁrst is 4 less than 4 times the previous term. If the fourth term in this sequence is 12, what is the ﬁrst term?

Answers

Answer 1

Answer: First term is -1 because the common difference between each term 4n-4 where n is the term before. Therefore of you work backwards by taking 4 away from 12 then diving by 4 you should get 4 as third term. So you can keep going back till first term and you would get the following sequence

-1, 0, 4, 12...

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Insert four arithmetic means between -1 and 14

Answers

Answer:

Step-by-step explanation:

d = 7%2F2

-2, -2+7%2F2, -2+2%287%2F2%29, -2+3%287%2F2%29, 12

-2, -4%2F2+7%2F2, -4%2F2+14%2F2, --4%2F2+21%2F2, 12

-2, 3%2F2, 10%2F2, 17%2F2, 12

-2, 3%2F2, 5, 17%2F2, 12

Let f(x) = x2 − 8x + 5. Find f(−1)

Answers

f(x) = x² - 8x + 5
f(-1) = (-1)² - 8(-1) + 5
f(-1) = 1 + 8 + 5
f(-1) = 9 + 5
f(-1) = 14

$f(x) = x^2- 8x + 5$

$f(-1) = (-1)^2- 8(-1) + 5$

$f(-1) = 1 + 8 + 5$

$f(-1) = 9 + 5$

$f(-1) = 14$

Help!! Thank you so much beforehand

Answers

X = 44
It's a x 4 growth

your answer would be X=64

A bar graph in which the bars are arranged in frequency order is
a.

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It is a histogram because they are by frequency.

Solve: 3x + 1 = 3

With working out

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$3x + 1 = 3 \n \n3x + 1-1 = 3 -1\n \n 3x = 2 \n \n (3x)/(3) = (2)/(3) \n \n x = (2)/(3)$

$3x+1 =3 \n \n 3x =3 -1 \n \n 3x =2 \n \n \n (3x)/(3) = (2)/(3) \n \n x = (2)/(3) \n \n \framebox[1.1\width]{Good Luck!} \par$

What is the circumference of a circle with the radius of 8.2 (round to the nearest hundredth)?

Answers

C=2piR. C=2(3.14)(8.2). C=6.28(8.2). C= 51.496. But we have to round to the nearest hundredth which is the second place to the right of a decimal. So now C=51.50 (since 49+1=50) :) hope this helps

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