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Helga [31]
3 years ago
7

What is the first stepin solving the quadratic equations x2-40=0

Mathematics
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

+40 to both sides of the = sign.

Step-by-step explanation:

x2-40=0

    +40=+40

x2=40

 /2=/2

x=20

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Answer:

C, C and A

Step-by-step explanation:

using the formulae relating to the circle

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Area of the interior with r = 4

A = π × 4² = 16π ≈ 50.27 ft² → C

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(1)

Circumference of exterior circle with r = 7

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4 0
3 years ago
Find the length of line segmentAB which joins the following points.A(10, 14) and B(2,6)​
Helen [10]

Answer:

The equation of the line AB is  y - x -4 = 0

Step-by-step explanation:

The points are A (10,14) and B(2,6)

Now, slope of the line AB :  m = \frac{y_2 - y_1}{x_2 - x_1}

or, m = \frac{14 -6 }{10 - 2} = \frac{8}{8}  = 1

So, slope of the equation AB = 1

Now, by SLOPE INTERCEPT FORM:

The equation of line is given as :    y - y0 = m (x-x0)

So,the equation of line AB is  y - 6 = 1(x-2)

or, y - 6 -x + 2 = 0

or, y - x -4 = 0

Hence, the equation of the line AB is  y - x -4 = 0

5 0
3 years ago
viviana wants to wrap a gift in a box that is 5 inches by 3 inches how much wrapping paper will she need? assume that the paper
sweet-ann [11.9K]

Answer: multiply it

Step-by-step explanation:

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4 years ago
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