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2 years ago

Are the given angles complementary, supplementary, or neither?

Mathematics

1 answer:

const2013 [10]2 years ago

4 0

B. Complementary means totaling 90 degrees, and supplementary means totaling 180 degrees.

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Find the slope of the line

viva [34]

Answer:

-1

Step-by-step explanation:

goes down 1 across 1

3 0

2 years ago

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Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

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2 years ago

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18.0*18.9 please help, please!

kicyunya [14]

Answer:

340.2

Step-by-step explanation:

18.0 x 18.9 = 340.2

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2 years ago

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Emily is 2 years older than Alysson. The product of their age is 440. How old are they?

Nuetrik [128]

Call Emily's age is x, we have:
x * (x - 2) = 440
So x = 22
So Emily's 22 years old, Alysson's 20 years old.\\
Brainliest?

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2 years ago

What distance would be covered in 60

ddd [48]

60 x 50 = 3000 meters.......

4 0

2 years ago