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Lilit [14]
3 years ago
6

Dimitri is solving the equation x^2 - 10x = 21. Which value must be added to both sides of the equation to make the left side a

Mathematics
2 answers:
expeople1 [14]3 years ago
8 0

Answer:

25

Step-by-step explanation:

juin [17]3 years ago
3 0

Answer:

25

Step-by-step explanation:

Given

x² - 10x = 21

To complete the square on the left side

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 5)x + 25 = 21 + 25, that is

(x - 5)² = 46

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natulia [17]
You can multiply both 89 and 5 by both 5 because it's over a course of 5 days, than subtract the total by each other. For the rental you have to multiply ,35 by 5 and 4 than add those two sums together. Once you have all the totals, add them all together to get your answer
4 0
3 years ago
G(x)=-x^2-1-2x<br> f(x)=x+5<br> Find (g-f)(x)
nikitadnepr [17]

(g-f)(x) is x² - 3x - 6

<u>Step-by-step explanation:</u>

Step 1:

Given g(x) = x² - 1 - 2x, f(x) = x + 5. Find (g-f)(x)

(g-f)(x) = x² - 2x - 1 - (x + 5) = x² - 2x - 1 - x - 5 = x² - 3x - 6

3 0
3 years ago
Help me plz I need help plz
timurjin [86]

Answer:

c

Step-by-step explanation:

For example, say that the regular price was $2. 0.10 x 2 = 0.20. Using the info in option c, then she would subtract 0.20 from 2, which would give her the sale price. Hope this helps!

4 0
3 years ago
3/5=a+5/25 <br> A=<br> Using proportional reasoning
dusya [7]

Answer:

A = 2/5

Step-by-step explanation:

subtract 5/25 from both sides leaving A alone

3 0
3 years ago
Read 2 more answers
High demand cars that are also in low supply tend to retain their value better than other cars. The data in the table is for a c
lapo4ka [179]

Answer:

I believe the answer is D

Step-by-step explanation:

Hope this helps

8 0
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