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masya89 [10]
3 years ago
5

8w^2=50 i’m not sure how to find the answer

Mathematics
2 answers:
CaHeK987 [17]3 years ago
8 0

8w^2=50

= w^2= (50÷8)

= w^2= 6.25

=w = √6.25

w= 2.5

joja [24]3 years ago
3 0

Answer:

w = 2.5

Step-by-step explanation:

isolate the w^2

<u>8w^2</u>=<u>50</u>

8           8

w^2=50/8

w^2=6.25

√w^2=√6.25    radical signs cancel out the exponent

w=2.5


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AB = 15, BC = 10, and CD= 7. Find the length DA.
harkovskaia [24]

Answer:

  451. No, the angles are wrong.

Step-by-step explanation:

450. AB = 15, BC = 10, and CD= 7. Find the length DA.

  This cannot be done without additional information about the sort of figure that ABCD is. If these are points on a line segment, we need to know their order. If these are points on a quadrilateral, we need to know its description in more detail.

If these are points ordered ABCD on a line, then AD = 15+10+7 = 32.

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451. See the attached figure. BPQD is not a parallelogram: BCQ is not a straight line. (The internal angles of a pentagon are 108°, but would need to be 120° for BCQ to be a straight line, making BP parallel to DQ.) Instead, BPQD is an isosceles trapezoid.

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What equation in slope-intercept form represents the line that passes through the points
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<h2>Answer:    y = - x + 1 </h2>

<h3>Step-by-step explanation: </h3>

        For us to write the equation for this line, we need to (1) find the slope of the line, and (2) use one of the points to write an equation:  

       The question gives us two points, (-3, 4) and (2, -1), from which we can find the slope and later the equation of the line.

 

<u>Finding the Slope</u>    

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)    

                                         =  (4 - (- 1)) ÷ ((-3) - 2)  

                                         =   - 1  

<u>Finding the Equation</u>

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:  

                                 ⇒  y - (-1) =  - 1 (x - 2)

                                        y + 1 = - (x - 2)

we could also transform this into the slope-intercept form ( y = mx + c) by making y the subject of the equation:  

                                   since  y + 1 = - (x - 2)                                                    

                                                ∴  y = - x + 1

<em>To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.</em>

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