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andrew11 [14]
3 years ago
5

What are the solutions of the equation x2+4×4=25

Mathematics
1 answer:
lys-0071 [83]3 years ago
3 0
I think it is 4.5 because 4*4=16 and 4.5*2=9. adding those together will make 25.
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What number must you add to complete the square x^-8x=39
notsponge [240]

Answer:

Given equation: x^2-8x =39

when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;

x^2-8x+4^2 = 39 +4^2

∵8 is the value (\frac{8}{2})^2

Notice that, we add this both sides so that it maintains the equality.

then;

x^2-8x+4^2 = 39 +4^2

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Simplify:

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The number must be added to complete the square is, 4^2 = 16



3 0
3 years ago
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The slope of a line is 2 and the point (1, 1) lies on the line. What is the y-intercept of this line? (0, -1) (0, 5) (-2, 0)
artcher [175]

Answer:

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Step-by-step explanation:

It's helpful if we think of slope in the context of rise over run.

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What is the measure of arc QR?<br> 26°<br> 52<br> 104<br> 128°
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The answer to this question is option <u>C. </u><u><em>104 °</em></u>

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4 0
3 years ago
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3 years ago
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