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kari74 [83]
3 years ago
10

CAN SOMEONE HELP EXPLAIN THIS TO ME !!!!

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0
The quadratic formula is above.

You want each equation in standard form: ax^2 + bx + c = 0
I begin each problem by defining variables.
For instance 3. Is in standard form. X^2 -2x - 3 = 0. a = 1, b = -2, c = -3

Now use quadratic formula: x = [- b + or - sqrt(b^2 - 4ac)]\2a

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Blanca jogged 8 days last month. She jogged 1.25 miles on each of these days and burned 140 calories per mile while jogging.
Marat540 [252]
Answer: 1,400 calories



Bianca jogged 1.25 miles per day for 8 days. so 1.25*8 would equal 10 miles.

Since she jogged 10 miles and burned 140 calories per mile, if we multiply 10*140, we would get 1,400.

So last month, she lost 1,400 calories.
6 0
2 years ago
Help pls I give brainlest
dedylja [7]

Answer:

y = 1/2x - 3

Step-by-step explanation:

The line intercepts with the y-axis at -3 and its pattern is going right two and up one.

6 0
3 years ago
3 + (-2)<br><br> pls tell me answer and how to solve it
svet-max [94.6K]

Answer:

3 + (-2)

= 3 - 2

= 1

hope this helps

5 0
3 years ago
given the equation y = 2x - 8, find the ordered-pair solution when x = 4 and the ordered-pair solution when y = 4
babunello [35]

Answer:

When x = 4, (4, 0)

When y = 4, (6, 4)

Step-by-step explanation:

To find the ordered-pair solution when x = 4, plug 4 into the x of the equation.

y = 2x - 8

y = 2(4) - 8

y = 8 - 8

y = 0

This produces the ordered pair (4, 0).

To find the ordered-pair solution when y = 4, plug 4 into the y of the equation.

y = 2x - 8

4 = 2x - 8

12 = 2x

6 = x

x = 6

This produces the ordered pair (6, 4).

6 0
3 years ago
Factor completely.
Svetach [21]

Answer:

in what do u need help?

Step-by-step explanation:

3 0
2 years ago
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