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3 years ago

Simplify. 9(y + 7) 63y 7y + 9 9y + 63 16y

Mathematics

1 answer:

Snezhnost [94]3 years ago

5 0

So the right answer is of option C.

Look at the attached picture

Hope it will be helpful to you..

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What is the general term equation, an, for the arithmetic sequence 5, 1, â3, â7, . . . , and what is the 21st term of this seque

Valentin [98]

Hello :

the nth term ( general term of an arithmetic sequence is :

An =A1+(n-1)d ....a common difference is : d , A1 : the first terme
A1 = 5 and : d = 1 - 5 = - 4 n = 21
A21 = 5 + (21 -1)(-4)
A21 = 5 - 80 = -75

3 0

3 years ago

A company sold 3,000 computers in one month, but 12 were returned. If 3,500 were sold the next month, the company would expect 1

Ray Of Light [21]

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8 0

3 years ago

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How can you divide 3 4 by 65

Aleks04 [339]

Answer:

48 3/4

Step-by-step explanation:

65/1

3 x65/4x1=195/4 which equal 48 3/4

3 0

3 years ago

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Pls only do this if yk it because i’m giving correct answer brainliest! :))

Leno4ka [110]

Answer:

$x=2+\frac{1}{2}\sqrt[]{21}$

$x=2-\frac{1}{2}\sqrt{{21}$

Step-by-step explanation:

$4x^2-16x-26=-21$

Add 21 on both sides.

$4x^2-16x-26+21=-21+21$

$4x^2-16x-5=0$

a=4

b=-16

c=-5

$x=\frac{-b\frac{+}{}\sqrt[]{b^2-4ac} }{2a}$

$x=\frac{-(-16)\frac{+}{}\sqrt[]{(-16)^2-4(4)(-5)} }{2(4)}$

$x=\frac{16\frac{+}{}\sqrt[]{256+80} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{336} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{2^2*2^2*21} }{8}$

$x=\frac{16\frac{+}{}2*2\sqrt[]{21} }{8}$

$x=\frac{16\frac{+}{}4\sqrt[]{21} }{8}$

---------------------------------------------------------------------------

$x=\frac{16}{8}+\frac{4\sqrt[]{21}}{8}$

$x=2+\frac{1}{2}\sqrt[]{21}$

---------------------------------------------------------------------------

$x=\frac{16}{8}-\frac{4\sqrt[]{21}}{8}\\x=2-\frac{1}{2}\sqrt{{21}$

6 0

3 years ago

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NEED HELP PLEASE IM BEGGING YOU !!!!! I NEED HELP WITH 6 AND 7 PLEASE

stepladder [879]

Answer:

6. is H

7. is B

Explanation:

the communitive property states that if: a+b=c, then b+a=c

if each ballon costs 2 dollars, that would b 2x or $2 (aka the 2) for 1 balloon (aka the x) and since he has a 10$ off coupon, you have to subtract 10$ so y=2x-10

5 0

3 years ago