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Snezhnost [94]
3 years ago
13

Please help me with this​

Mathematics
1 answer:
-Dominant- [34]3 years ago
7 0
Try 5x - 8 + 43 = 90
or: 5x - 8 + 43 = 180
or try this: 5x - 8 = 43
solve for x
don’t forget to plug the number back in
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Is it possible for two numbers to have a difference of 5, and a sum of 12?
frozen [14]
Uhhh that doesn’t seem possible but then again i forgot simple math lol
4 0
3 years ago
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X + 4 is prime x2 – 9 can be factored using the formula.
Anna71 [15]

We are given two binomials: x+4 , x^2-9.

x+4 can't be factored. Therefore,  it is a prime.

Let us work on x^2-9.

9 could be written as 3^2.

Therefore, x^2-9 = x^2 - 3^2.

Now, we can apply difference of the squares formula to factor it.

We know a^2 -b^2 = (a-b) (a+b).

Therefore,  x^2 - 3^2 can be factored as (x-3) (x+3).

So, x^2-9 is not a prime binomial because it can be factored as (x-3) (x+3).

3 0
3 years ago
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Write an equation the nth term of the arithmetic sequence -5,0,5,10 then find a10
Monica [59]

Step-by-step explanation:

a(n) = a +(n-1)d

a=-5

d=5

a(n) = -5 +(n-1)5

      =-5+5n-5

     =5n-10

a(50) = -5 +(50-1)5

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hope this helps

8 0
3 years ago
Which of the following expressions is equivalent to (3x+6)(2x-1)
Elden [556K]

Answer:

6x^2+9x-6

Step-by-step explanation:

(3x+6)(2x-1)=6x^2+12x-3x-6=6x^2+9x-6

4 0
3 years ago
Q4
SCORPION-xisa [38]

Answer:

A. 8cm^{3} B. Yes

Step-by-step explanation:

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5 0
3 years ago
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