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Luden [163]
3 years ago
10

Solve each equation mentally: J + 7 = 13

Mathematics
2 answers:
iren [92.7K]3 years ago
6 0

Answer:

6

Step-by-step explanation:

13-7=6

JulijaS [17]3 years ago
4 0

Answer:

j=6

Step-by-step explanation:

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What are the coordinates of the vertex of the parabola y=x^2+2x-1
kozerog [31]
Y = x^2 + 2x - 1 = x^2 + 2x + 1 - 1 - 1 = (x + 1)^2 - 2
The vertex of a parabola given by y = a(x - h)^2 + k is (h, k).

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3 0
3 years ago
Mr. Au went to eat at McDonald's this week. On Monday, he ate some hamburgers. On Tuesday, he ate nothing at McDonald's. On Wedn
rewona [7]

Answer: See explanation

Step-by-step explanation:

Let the number of hamburger he ate on Monday be represented by x.

Monday = x

Tuesday = 0

Wednesday = x + 4

Thursday = 0

Friday = 3(x + 4)

Total hamburgers ate = 26

To find the amount of hamburger ate each day we add the number of hamburger ate per day all together. This will be:

= x + 0 + x + 4 + 0 + 3(x+4) = 26

2x + 4 + 3x + 12 = 26

5x + 16 = 26

5x = 26 - 16

5x = 10

x = 10/5

x = 2

Monday = x = 2 hamburgers

Tuesday = 0

Wednesday = x + 4 = 2 + 4 = 6 hamburgers

Thursday = 0

Friday = 3(x + 4) = 3(2 + 4) = 18 hamburgers

4 0
3 years ago
5x^2-26x+5 factor the trinomial
ss7ja [257]
The factored form for this question is (5x-1)(x-5)
4 0
3 years ago
1 + 1 I dont know how to solve this problem please help me...
Deffense [45]

Answer:

1+1= 2

Step-by-step explanation:

or sometimes people say 11, but irl its 2

4 0
3 years ago
I neeed some help here!
BartSMP [9]
The answer is A because 5 x 3/8 and 15 x 1/8 both equal 15/8. 
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3 years ago
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