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tatyana61 [14]
3 years ago
15

What is the value of 3ab + 5b-6 when a=-1 and b=3 ?

Mathematics
2 answers:
const2013 [10]3 years ago
5 0

Answer: 3ab + 5b-6 when a=-1 and b=3 ?

Step-by-step explanation:

1st you have to write it out.

3*1*3+5*3-6

Then you need to separate them into 2 different problems

3*1*3=9

5*3-6=9

Lastly, you need to add them both together.

9+9=18

Over [174]3 years ago
5 0

Answer:

3 * -1 x 3   +  5 * 3 - 6 = 0

Step-by-step explanation:

Replace (a)s and (b)s with the given numbers

so (a)s becoming -1 and (b)s becoming 3.

this leads up to the given expression:

3 * -1 x 3   +  5 * 3 - 6

3 times -1 = -3 multiplied by that 3 is -9

since a negative multiplied by a positive is a negative.

With that you have -9 +  5  x 3 - 6

take 5 and 3, multiply them to get 15 and subtract 6.

this ends up with '9'

Lastly ending up with -9+9 = 0

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Last year, Pattersonville had a population of 40,500 people . The census indicated that the population of the town has been decr
AleksandrR [38]

Answer:

34175 people will live in Pattersonville 8 years from now

Step-by-step explanation:

Initial population of Pattersonville =40,500

We are given that The census indicated that the population of the town has been decreasing by 2.1% per year .

Now we are supposed to find If this trend continues , approximately how many people will live in Pattersonville 8 years from now

Formula : N(t)=N_0(1-r)^t

Where N(t)= Population after t years

N_0= Initial population

r = rate of decrease = 2.1 %=0.021

t = 8 years

Substitute the values in the formula :

So,N(8)=40500(1-0.021)^8

N(8)=34175.63223

So, 34175 people will live in Pattersonville 8 years from now

7 0
3 years ago
X + 6 = x – 1<br><br> Find x.
Lady bird [3.3K]
I think it’s no solution
6 0
3 years ago
Read 2 more answers
What is the value of y?
lord [1]

Answer:

15

Step-by-step explanation:

Angle c is 180 - 146 = 34

All 3 angles add to 180:

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9y + 45 = 180

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5 0
2 years ago
What addds to 14 and multiplies to 8
Grace [21]
5.4142 and <span>2.5858 are the numbers you need</span>
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3 years ago
Help please thankssss
Bad White [126]
The answer to your question is r=6
8 0
1 year ago
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