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GREYUIT [131]
3 years ago
8

Find the vertex of f(r)=-(r-12)(r+3)

Mathematics
1 answer:
ollegr [7]3 years ago
4 0

Answer:

So here the vertex is -12 and +3 because it's when it goes it's higher and then it's lower

Step-by-step explanation:

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Factorise x squared + 4x + 3 ​
olganol [36]
<h3>Answer:  (x+1)(x+3)</h3>

===================================================

Explanation:

Let's assume it factors into (x+a)(x+b)

The goal is to find the two numbers a and b.

FOIL out (x+a)(x+b) to get x^2+(a+b)x+ab

Note how a+b is the middle term and ab is the last term.

In the original expression, 4 is the middle term and 3 is the last term.

So we need to find two numbers that

  • add to 4
  • multiply to 3

There are two ways to multiply to 3 and they are

  • 1 times 3 = 3
  • -1 times -3 = -3

But only the first way has the factors add to 4. So that means a = 1 and b = 3.

Therefore (x+a)(x+b) = (x+1)(x+3)

And x^2+4x+3 = (x+1)(x+3)

8 0
3 years ago
Please awnser thase questions for my prarice test
Vinvika [58]

Answer:

Add 5 for the first one

The 2nd one is 25 and k or 25 thousand.

Step-by-step explanation:

add 5 for the first one because 5 + 5 = 10

9 + 5 = 14 .   and 13 + 5 = 18.

------------------------------------------------------------------

For the 2nd one:  25k means 25 thousand or the Product of 25 and k.

5 0
3 years ago
How do you find the tenth term in this sequence
slava [35]

Answer:

should be none of the about because each time you multiple by 1/2, i got 1/64 for the 10th

Step-by-step explanation:

7 0
3 years ago
The difference of eighteen and a number is 3
Firdavs [7]

Answer:

15

Step-by-step explanation:

18-x=3

18-3=x

18-3=15

5 0
3 years ago
How many fifths are the in 60/100
tankabanditka [31]
In order to calculate that, we need to divide it by 1/5 as follows:
60/100 / 1/5

We can re-write it as: 60/100 * 5 = 6/10 * 5 = 30/10 = 3

So, there are "3" 1/5ths in 60/100

Hope this helps!
8 0
3 years ago
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