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ss7ja [257]
3 years ago
13

If (a+b)^2=10, if ab=-2 calculate a^2+b^2​

Mathematics
1 answer:
Reil [10]3 years ago
4 0

Answer:

a^2+b^2=(a+b)²-2ab=10-2×-2=10+4=14(here -×-=+)

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HELP 20 POINTS!! SOLVE
kodGreya [7K]

Answer: -10 1/2, -8 1/2, -4 1/2, 4 1/2

Step-by-step explanation:

Using logic it’s -10 1/2, -8 1/2, -4 1/2, 4 1/2

7 0
3 years ago
What ordered pairs are a solution to the equation:
Colt1911 [192]

Answer:

your answer is (-1,8)

Step-by-step explanation:

Graph the equation and check all of the coordinates \_O_/

3 0
3 years ago
Read 2 more answers
Please answer ASAP. The question is down below. thanks.
rewona [7]

Answer:

(-2,-4)

Step-by-step explanation:

The vertex of a parabola is it's lowest (or highest, but lowest in this context) point. Your lowest point is (-2,-4), so that is your answer.

4 0
4 years ago
The stem-and-leaf plot lists the ages of people in a movie theater. How many people in the movie theater are over the age of 30?
Mumz [18]
Given:

Stem     Leaf
1            6
2            5, 6
3            8, 
4            0, 0, 0, 4
5    
6            7

There are 6 people who are over the age of 30.
Their ages are 38, 40, 40, 40, 44, and 67
5 0
3 years ago
Read 2 more answers
A local hamburger shop sold a combined total of 659 hamburgers and cheeseburgers on Sunday. There were 50 fewer cheeseburgers so
NISA [10]

Answer:

The sold 354.5 hamburgers and 300.5 cheeseburgers.

Step-by-step explanation:

Let number of hamburgers=h

Let number of cheeseburgers=c

On Sunday, the shop sold a combined total of 659 hamburgers and cheeseburgers. Therefore:

h+c=659....(I)

There were 50 fewer cheeseburgers sold than hamburgers .

c=h-50.....(ii)

Substitution of equation (ii) into (I)

h+(h-50)=659

2h=659+50

2h=709

h=709/2=354.5

From (ii)

c=h-50

=354.5-50=300.5

The sold 354.5 hamburgers and 300.5 cheeseburgers.

NOTE: These result are from the given data. However, we were not informed if the shop sells half burgers or not

7 0
3 years ago
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