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marin [14]
3 years ago
14

Can y’all help me write this down?

Mathematics
1 answer:
Reil [10]3 years ago
4 0

Answer:

below

Step-by-step explanation:

  1. \frac{(-3)}{7} and -(\frac{3}{7} )
  2. \frac{-5}{9}  and  -(\frac{5}{9})
You might be interested in
(a) How many integers from 1 through 1,000 are multiples of 2 or multiples of 9?
DENIUS [597]

Answer:

(a)There are 500 integers from 1 through 1,000 are multiples of 2.

There are 111 integers from 1 through 1,000 are multiples of 9.

(b)0.611

Step-by-step explanation:

Given the set of Integers from 1 through 1000

The least multiple of 2 is 2 and the highest multiple of 2 in the interval is 1000.

To determine the number of terms, we use the formula for the nth term of an Arithmetic Progression, since 2,4,6,... is an Arithmetic Progression,

where first term, a =2, common difference, d =2

Nth term of an A.P,

U_n= a+(n-1)d\\1000=2+2(n-1)\\1000=2+2n-2\\1000=2n\\n=500

  • There are 500 integers from 1 through 1,000 are multiples of 2.

Similarly,

Given the set of Integers from 1 through 1000

The least multiple of 9 is 9 and the highest multiple of 9 in the interval is 999.

To determine the number of terms, we use the formula for the nth term of an Arithmetic Progression, since 9,18,27,... is an Arithmetic Progression,

where first term, a =9, common difference, d =9

Nth term of an A.P,

U_n= a+(n-1)d\\999=9+9(n-1)\\999=9+9n-9\\999=9n\\n=111

  • There are 111 integers from 1 through 1,000 are multiples of 9.

(b)Probability that an integer selected at random is a multiple of 2 or a multiple of 9.

There are a total of 1000 numbers between from 1 through 1,000

n(S)=1000

n(Multiples of 2)=500

n(Multiples of 9)=111

Therefore:

P(\text{Multiples of 9}) \:OR\: P(\text{Multiples of 2})=\frac{111}{1000} + \frac{500}{1000} \\=\frac{611}{1000} \\=0.611

7 0
3 years ago
What are the solutions to the equation? 3x2+6x=45
daser333 [38]

Answer:

x = 3, -5

Step-by-step explanation:

hope this helps plz give brainiest

4 0
3 years ago
Combining Volume Help<br><br> What #'s do I multiply to find the volume
LuckyWell [14K]
1st part: 3x9x3
2nd part: 3x6x9
3rd part: add the product of those two steps

you have to break it down into two rectangular prisms and find the volume of each and then add

5 0
3 years ago
12 to the power of 2 minus 6 to the power 2 times 3 to the power of 4 plus 5 to the power of 3?
Marina86 [1]
12^2 - 6^2 * 3^4 + 5^3

(144) - (36) * (81) + (125)
144 - (36 * 81) + 125
144 - 2916 + 125
-2,772 + 125
-2,647
5 0
3 years ago
Read 2 more answers
How to do RX - sx + y equals B plzz explain how to get the answer there all variables!!!!
zalisa [80]
Rx - sx + y = b

WHEN SOLVING FOR X :

rx - sx + y = b

We must get x onto it's own side, so subtract y from both side.s

rx - sx = b - y

Then, factor out x.

x(r - s) = b - y

Then, divide both sides by (r - s).

x(r - s) ÷ (r - s) = b - y ÷ (r - s)

Simplify.

x = b - y / r - s → x =  \frac{b-y}{r-s}

WHEN SOLVING FOR Y :

rx - sx + y = b

We need to isolate y, so get rid of everything BUT y on the left side.

Subtract rx from both sides.

-sx + y = b - rx

Then, add sx to both sides.

y = b - rx + sx

~Hope I helped!~

5 0
3 years ago
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