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Alekssandra [29.7K]
3 years ago
6

Which shows the correct substitution of the values a b and c from the equation -2 equals negative X Plus x squared minus 4 into

the quadratic formula?
Mathematics
1 answer:
kondor19780726 [428]3 years ago
5 0
-2=-x+x square-4
firstly regroup the equation
x square-2x+x-2=0
x square-x-2=0
multiply the first term by the last term.(I.e x square multiply by -2=-2x square)
product of factor = -2x 1
sum of factor= -2x+1(x)= -1
x square -2x+x-2=0
open the bracket:
x(x-2)+1(x-2)=0
x=1 or x=-2
Therefore; x=-1 or x=2


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If f(x) => x2 +6, what is the value of f(8)?
soldier1979 [14.2K]

Answer:22

Step-by-step explanation: since f(8) so x=8

substitiuting x in 2x+6

                                      f(8)= 2x8+6=22

so f(8)=22

Hope this helps! :)

4 0
2 years ago
wilma buys a new game that is priced $43.89. she gets successive discounts of 15% followed by 5% off on the game. the purchase p
castortr0y [4]
If you would like to know the purchase price of Wilma's game, you can calculate this using the following steps:

15% of $43.89 = 15% * 43.89 = 15/100 * 43.89 = $6.5835 = $6.58

$43.89 - $6.58 = $37.31

5% of $37.31 = 5% * 37.31 = 5/100 * 37.31 = $1.8655 = $1.87

$37.31 - $1.87 = $35.44

The correct result would be <span>$35.44.</span>
5 0
3 years ago
Read 2 more answers
Need help anyone please!!!
Jobisdone [24]
The picture is blurred
8 0
2 years ago
The formula for finding the volume of a rectangular prism can be stated as V= l x w x h, wHerr l=length of the prism, w=width of
blagie [28]

Answer:

1)

23265


2)

9478.125

3) 102369.09375

Formula nonsense: V=l*w*h

1) meaning V= 33*47*15 so V= 23265

2) meaning V= 22.5*33.7*12.5 so V= 9478.125

3) meaning V= 122.25*50.75*16.5 so V= 102369.09375

8 0
2 years ago
D
Leviafan [203]
All you gotta do is do 11.00 decided by .44 and it’s 25
8 0
2 years ago
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