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3 years ago

What is the length of BC in the right triangle below?

Mathematics

1 answer:

telo118 [61]3 years ago

5 0

Answer:

The answer should be 15

Step-by-step explanation:

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If a segment has an endpoint of (-2,9) and a midpoint (3,-2), find the other endpoint.

Alik [6]

Answer: (8, -13)

Step-by-step explanation:

-2 is 5 away from 3, and 9 is 11 away from -2. so add 5 to 3 which is 8, and add -11 to -2 which is -13.

5+3=8 (x)

-11+(-2)=-13 (y)

There for the correct answer is (8, -13) when (x, y).

Please Rate!! It helps me know if I'm explaining it well enough!! Thank you!<3

5 0

3 years ago

B. has 15 marbles and he got 123 more marbles add those two numbers and see what the number rounds to.

olganol [36]

Answer:

100 if rounded to hundreds

140 if rounded to tens

Step-by-step explanation:

7 0

4 years ago

I really need help with this. Can anyone help me please?

I am Lyosha [343]

Answer:

$f(x)=(x-3)(x^2+4x+8)$

Step-by-step explanation:

A polynomial function is given by the form:

$f(x)=a(x-p)(x-q)...$

Where a is the leading coefficient, and p and q are the roots (more can be added if necessary).

Our zeros are 3 and (-2 + 2i).

And our leading coefficient a = 1.

Furthermore, by the Complex Root Theorem, if (-2 + 2i) is a zero, then (-2 - 2i) must also be a zero.

So, by substitution, we acquire:

$f(x)=1(x-(3))(x-(-2+2i))(x-(-2-2i))$

Simplify:

$f(x)=(x-3)(x+2-2i)(x+2+2i)$

Expand the second and third factors:

$\begin{aligned} &=(x+2-2i)x+(x+2-2i)(2)+(x+2-2i)(2i)\\&= (x^2+2x-2ix)+(2x+4-4i)+(2ix+4i-4i^2)\\&=(x^2)+(2x+2x)+(-2ix+2ix)+(-4i+4i)+(4-4i^2)\\&=x^2+4x+(4+4)\\&=x^2+4x+8 \end{aligned}$

Therefore, our polynomial function of least degree and the given zeros will be:

$f(x)=(x-3)(x^2+4x+8)$

6 0

3 years ago

What is the positive contermental angle of pi/4

Ber [7]

Answer:

I think its 19/pi that may be wrong

Step-by-step explanation:

sorry if that is wrong

7 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST!!!!

lyudmila [28]

For what?
You need to put the question...

5 0

3 years ago

Read 2 more answers