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3 years ago

The sum of -4n and 5n is -82

Mathematics

2 answers:

IRINA_888 [86]3 years ago

6 0

Answer:

kxykfrx rs bfcxv56 45 5y yh

Step-by-step explanation:

kycg

Harlamova29_29 [7]3 years ago

5 0

You cannot make that statement without stating the value of n

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What is 75%,1/6,3/8,and 0.625 from least to greatest

Naya [18.7K]

Convert each term in decimal form. This is avoid confusion and for uniformity and ease in comparing the value of each term.

75%   is   0.750
1/6   is   0.167
3/8   is   0.375
0.625 is   0.625

From least to greatest, the order is:

0.167 , 0.375 , 0.625 , 0.750

5 0

3 years ago

Find the common difference of the arithmetic sequence, the next three terms, the equation, and the term given for 8, 10, 12, 14

fredd [130]

Answer:

see explanation

Step-by-step explanation:

In an arithmetic sequence the common difference d is

d = a₂ - a₁ = 10 - 8 = 2

To obtain the next term in the sequence add d to the previous term, that is

a₅ = 14 + 2 = 16

a₆ = 16 + 2 = 18

a₇ = 18 + 2 = 20

The next 3 terms in the sequence are 16, 18, 20

The n th term equation for an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 8 and d = 2, thus

$a_{n}$ = 8 + 2(n - 1) = 8 + 2n - 2 = 2n + 6

5 0

3 years ago

Write an equation and then use it to solve: Sasha gives half of her books to the local library and keeps the other half. Her bes

boyakko [2]

Answer:

120 books

Step-by-step explanation:

57 + 3 = 60

60 x 2 = 120

8 0

3 years ago

I need help with this

Natali [406]

Answer: 1,004.8 cubic meters (choice D)

Work Shown:

V = (1/3)*pi*r^2*h

V = (1/3)*3.14*8^2*15

V = 1,004.8

8 0

2 years ago

Read 2 more answers

Elaine plans on saving $2,000 a year and expects to earn an annual rate of 8.8 percent. How much will she have in her account at

yKpoI14uk [10]

Answer:

$831,532.24

Step-by-step explanation:

The amount that will be in her account at ordinary annuity is derived using the formula:

$A(n) = \dfrac{P((1 + r)^{n}-1)}{r}$

Where:

Yearly Deposit,P=$2000

Annual rate,r=8.8%=0.088

Number of Years,n=43 years

$A(43) = \dfrac{2000((1 + 0.088)^{43}-1)}{0.088}\\\dfrac{2000[(1 .088)^{43}-1]}{0.088}\\A(43)=\$831,532.24$

At the end of 43 years, she would have <u>$831,532.24</u> in her account.

3 0

3 years ago