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levacccp [35]
3 years ago
8

I need to know if this Answer is correct. please tell me the answer. if it's wrong. Thanks!!!

Mathematics
2 answers:
yaroslaw [1]3 years ago
6 0
Here, as I can see, you are adding fractions, and making sure you have a common denominator. 

12) is correct
13) is correct

You got a common denominator, and added them up! Great job! <span />
Papessa [141]3 years ago
5 0
They are correct but I don't know whether or nor 13 asks you to simplify 23/20 to 1 3/20. But otherwise, it is all correct. Nice job. 
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Factor completely x^2 + 8x + 15.<br> O (x+3)(x+5)<br> O (x+3)(x-5)<br> O X+1)(x+15)<br> O(x+1)(x-15)
Maksim231197 [3]

Answer:

x<3 and x<5

Step-by-step explanation:

Given the quadratic inequality x² - 8x + 15 <0, to get the solution set for the inequality, the following steps must be followedStep 1: Factorize the quadratic expression

x² - 8x + 15 <0

x² - 3x - 5x + 15 <0

x(x - 3) - 5(x - 3)  <0

(x -3)(x -5)< 0

x -3<0 and x -5<0

x< 3 and x< 5

3 0
2 years ago
How many total minutes does she read if she read for 20 minutes for the first day and everyday after that she reads five minutes
allsm [11]

Answer:

so on the first day she read 20 and the next they read 25 and the next day they read 30 for those thirty days add five and hopefully you will get ur answer


3 0
3 years ago
GUYS HELP PLEASE URGENT!!!!!!
kkurt [141]
Well that would equate to 3136. So I would guess grams.
8 0
3 years ago
Read 2 more answers
Rewrite the expression -2a(a+b-5)+3(-5a+2b)+b(6a+b-8)
Nimfa-mama [501]
First separately:
-2a(a+b-5) = -2a^{2}-2ab+10a
3(-5a+2b) = -15a + 6b
b(6a+b+8) = 6ab+b^{2}+8b

Then you add then all together and get:
-2a^{2}-2ab+10a-15a + 6b+ 6ab+b^{2}+8b =
-2a^{2}-5a+4ab+14b+b^{2}

5 0
3 years ago
Read 2 more answers
Scott start his banking account with 150 and is spending $7 per day on lunch . How would one describe the graph of this model?
wolverine [178]

Answer:

So this is giving us the slope the slope is y=-7x+150

Step-by-step explanation:

It is giving us the Y intercept which is $150  because thats how much he starts out with

It is giving us the slope -7 dollars because he is spending that everyday

5 0
3 years ago
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