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madreJ [45]
3 years ago
8

-45 + -20

Mathematics
2 answers:
Savatey [412]3 years ago
5 0
Answer is. B. -65. It’s like adding with positive numbers but your doing it with negative
alex41 [277]3 years ago
3 0
It’s B


Explanation

I did this before
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Barrel A and Barrel B are the same size. Barrel A is filled with a solution that is 12% ethanol. The portion of ethanol in the s
mario62 [17]

Answer:

the answer is 12 because it sythsizes from the other part of the problem

Step-by-step explanation:

8 0
3 years ago
You can drive 512 miles on one tank of gas if you have 16 gallons of tank how many miles can you drive in 1 gallon of gas
tino4ka555 [31]
In order to find how many miles you multiply 512 by 16

Your answer is 8192 miles


Hope this helps :D
4 0
3 years ago
Can you multiply a coefficient by a constant
Tom [10]

answer

yes

because coefficient and constant can be multiplied or divided for example 5x * 7 equals 35 but if you are coefficient and constant you couldn't like an example 7 + 6x equals 7 + 6x

6 0
3 years ago
Need help with two questions please
balandron [24]

Answer:

v is negative for every x, meaning the domain is all values in R, whatever goes under the squared sign will come out as positive and the left out -ve sign will make V negative for all x in R

range of f(x) is -inf to +inf

Step-by-step explanation:

the cubic power doesnt affect the sign

3 0
3 years ago
Solve #2 with an explanation please
KatRina [158]
The fence is 210 ft long.
There is a post every 3.5 ft.
If you divide 210 ft by 3.5 ft, you get the number of spaces between posts.
(210 ft)/(3.5 ft) = 60
The fence starts with a post. Then there is 3.5 ft of fencing. Then there is another post. Then there is another 3.5 ft of fencing followed by a post. In total there are 61 posts.

Here's another way of thinking of why you end up with 60 posts.
For each 3.5 ft of fencing, you place a post at the end of the fencing.
Since there are 60 3.5-ft-long pieces of fencing, there will be 60 posts, one at the end of each piece of fencing. The first thing that is done is to put the initial post before any fencing is put up. The first post plus 60 more posts add up to 61 posts.

Now that you see why there are 61 posts, we can calculate their cost.
61 * $8.50 = $518.50
5 0
3 years ago
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