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finlep [7]
3 years ago
12

What is the first step in solving the quadratic equation x2 – 40 = 0? taking the square root of both sides of the equation addin

g 40 to both sides of the equation squaring both sides of the equation subtracting 40 from both sides of the equation
Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0

Answer:

add 40 to the -40 to both sides. then do x2/2=0 and 40/2=20

Step-by-step explanation:

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Can someone solve these for me?
trapecia [35]

Answer:

In order of pictures,

Picture #1: 230

Picture #2: 140

Picture #3: 9.9

Picture #4: 13.5

Picture #5: 7.07

Step-by-step explanation:

I am not entirely sure that 3 - 5 are correct, but I know that 1 and 2 are correct. I am sorry if they are incorrect.

Hope that this helps!

4 0
3 years ago
Ten points QRSTUVWXY and Z are equally and consecutively spaced on a circle.
laiz [17]

The size of ∠QTW in degrees is 72°. See the explanation below. This is based on the concept of opposite sides in a quadrilateral.

<h3>What is the logic leading to the above result?</h3>

QSUWY which is a pentagon is regular that mean:

∠QYW = 108°

The quadrilateral QTWY is a cyclic one. This means that we can apply the rule that states that opposites sides must add up to 180°

Thus, ∠QTW =

180 - 108

= 72°

<h3>What is a quadrilateral?</h3>

A closed quadrilateral has four sides, four vertices, and four angles. It is a form of polygon.

In order to create it, four non-collinear points are joined. Quadrilaterals always have a total internal angle of 360 degrees.

Learn more about Quadrilateral at;
brainly.com/question/23935806
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Full Question:

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2 years ago
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The answer would be the third choice

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