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larisa86 [58]
2 years ago
12

Knowing that the result of expanding (x+a)(x-6) is x²+mx-48, find the values ​​of a and m.​

Mathematics
1 answer:
Citrus2011 [14]2 years ago
6 0

We know -48 came from (a)(-6), the "L" in "FOIL".

If -48 = -6a, then a = 8.

Now with a=8, go ahead and FOIL (x+8)(x-6) to find m.

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A gym charges a one-time fee of $60 to join and membership dues of $25 per month
hoa [83]

Answer:

Step-by-step explanation:

C=25m plus 75

5 0
3 years ago
For what values of x is x2+2x=24 true?
JulijaS [17]

Answer:

x=-6 and x=4

Step-by-step explanation:

We must solve the quadratic equation to find the values of x that satisfy equality

x^2+2x=24

Subtract 24 on both sides of equality

x^2+2x-24=24-24

x^2+2x-24=0

Now we factor the quadratic equation

Identify two numbers that when you add them you get as a result 2 and when you multiply them you get as a result -24

The numbers sought are: 6 and -4

So the factors are:

(x+6)(x-4)=0

Finally note that the solutions are:

x=-6 and x=4

5 0
3 years ago
Read 2 more answers
I need help due by tomorrow ​
Flauer [41]
Can you tell me the options first and the formula C=Y
6 0
3 years ago
Read 2 more answers
a rectangular tank can be filled with water by two pipes in 100/9 minutes.If the large pipe alone takes 5 minutes less to fill t
Kitty [74]
Let,the time taken by larger pipe = x
By smaller pipe = x+5

It would be: 1/x + 1/(x+5) = 9/100
= x+5+x /(x)(x+5) = 9/100
= 2x+5 / x²+5x = 9/100
= 100(2x + 5) = 9(x² + 5x)
= 200x + 500 = 9x² + 45x
= 9x² - 155x - 500 = 0
= 9x² - 180x + 25x - 500 = 0
= 9x(x - 20) + 25(x - 20) = 0
= (9x + 25) (x - 20) = 0
= x = -25/9 or x = 20

Time can't be in negative so -25/9 is rejected.
Now,x + 5 = 20 + 5 = 25

In short, Your Larger pipe takes 20 minutes and smaller pipe takes 25 minutes

Hope this helps!
7 0
3 years ago
Simplify the expression 4.2 - 5 -6.5w
WARRIOR [948]

Answer:

−6.5w−0.8

Step-by-step explanation:

4.2+−5+−6.5w

Combine Like Terms:

=4.2+−5+−6.5w

=(−6.5w)+(4.2+−5)

=−6.5w+−0.8

Brainless please

5 0
3 years ago
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