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ziro4ka [17]
3 years ago
12

5-2x2=-15 what is the answer

Mathematics
2 answers:
saw5 [17]3 years ago
5 0

Answer:

20

Step-by-step explanation:

5 - 2 {x}^{2}  =  - 15 \\  =  >   - 2{x}^{2}  =  - 15 - 5 \\  =  >  \: 2 { x}^{2}  = 20 \\  =  >  \:  {x}^{2} = 10 \\  =  >  \: x =  \sqrt{10}

liq [111]3 years ago
4 0

Answer:

{-5-2*x^2-(-15)=0}

Step-by-step explanation:

That's the answer i believe??

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Increase 48m by 20% ??????????????????????????////
Anastaziya [24]
Someone else on Brainly had the same question, he showed the work so I copied it so you can see it.

We have 48 meters.
We need to increase it by 20%.
That means we have 48 and then we increase it by 20%.

That can be expressed as:
48 + (48 * 20%)

Now, another way to write that would be:

48 * 120%

Now, 120% is nothing but 120/100. This can even be simplified to 1.2.

48 * 120%
= 48 * 1.2
= 57.6

48m increased by 20% is 57.6m<span>.</span>
6 0
3 years ago
Read 2 more answers
A TV that usually sells for $183.26 is on sale for 25% off. If sales tax on the TV is 9%, what is the price of the TV, including
Hatshy [7]
183.26 times .25 = 45.815
183.26 minus 45.815 = 137.445
137.445 times 0.09 = 12.37005
137.445 plus 12.37005 = 149.81505
Which =149.82 rounded
3 0
3 years ago
Help with this please 
emmainna [20.7K]
\bf \begin{array}{llll}&#10;step~1&4x=28\\\\&#10;step~2&x=\cfrac{28}{4}\impliedby \textit{she did not divide 28 by 4}&#10;\end{array}&#10;
7 0
3 years ago
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Kaylis [27]
D the slopes are negative reciprocals
6 0
3 years ago
The graph shows the relationship between time
musickatia [10]

Answer:

The machine can make 24 bottles of soda per minute

Step-by-step explanation:

Looking at the graph of the relationship, we can see that the number of bottles per minute simply represent the slope of the line

Thus, by calculating the slope using the given points, we can have the number of bottles per minute

We have the formula as;

m = (y2-y1)/(x2-x1)

(x1,y1) = (4,96)

(x2,y2) = (6,144)

m = (144-96)/(6-4) = 48/2 = 24

8 0
3 years ago
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