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ZanzabumX [31]
4 years ago
8

Check all solutions to the equation. x² =-4

Mathematics
2 answers:
vovangra [49]4 years ago
4 0

Answer:

x=2i, -2i

Step-by-step explanation:

BARSIC [14]4 years ago
3 0

Answer:

2,-2 or maybe no real solutions but i went with 2,-2

Step-by-step explanation:

You might be interested in
Amanda spent a total of 70 minutes competing her chores this week. Write and solve an equation to represent the number of minute
gtnhenbr [62]

Answer:

28 minutes spent in washing the dishes.

Step-by-step explanation:

Given the table

Chore             time in minutes

Sweeping           42

Dishes                  ?

Amanda spent a total of 70 minutes competing her chores this week

Total of 70 minutes spent

42 minutes spent in sweeping . to find the number of minutes Amanda spent in washing the dishes , subtract 42 minutes from the total time spent

let x be the number of minutes spent washing the dishes

42+x=70

To solve for x , subtract 42 from both sides

42+x=70\\x= 70-42\\x=28

28 minutes spent in washing the dishes.

4 0
3 years ago
Will measures the distance around a tree using a tape measure as 48 inches. Use this measure to find the diameter of a cross sec
marin [14]

Answer: Assume the cross section is taken at the same height where the circumference was measured. Then


48/3 = 16 inches, close enough, actually. Trees aren't cylinders.


48 × 7 / 22 inches = 15.2727272

48/3.1415926 = 15.2788747

48/pi = 15.2788745368219522338128412837... ☺️



Step-by-step explanation:

circumference / diameter = pi = 3.1415926......

So diameter = circumference / pi.


6 0
3 years ago
Solve the equation 12 + 2x = 16
dusya [7]

Answer:

x=2

Step-by-step explanation:

12 + 2x = 16

2x=16-12

2x=4

x=2

3 0
3 years ago
Which size bottle of ketchup is the best deal with the lowest unit price?
tresset_1 [31]
The answer is 18 oz the others come out to below .3 per ounce but the 18 comes out to 30 cents an ounce
8 0
3 years ago
ANYONE HELP PLEASE<3
I am Lyosha [343]

Answer:

y = (2/3)x + 7

Step-by-step explanation:

Slope intercept form is y = mx +b

1) We start off with y =

2) m = slope. Since we know that the slope is 2/3 we can plug it in. y = 2/3x

3) b is y-intercept which = 7.

Put it all together: y = 2/3 x + 7

8 0
3 years ago
Read 2 more answers
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