3 years ago

Alejandra and her family are discussing how to pay for her college education

Mathematics

1 answer:

lyudmila [28]3 years ago

5 0

I am confused, what is your question? It help me help you better if I know what the question is.

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Step-by-step explanation:

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2 years ago

What is the solution of the equation when solved over the complex numbers?

olga55 [171]

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Step-by-step explanation:

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4 years ago

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Helga [31]

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3 years ago

Endpoint: (-4, 8), midpoint: (3,-4) Find the other endpoint Explain please

swat32

Answer: (10,-16)

Step-by-step explanation:

$A(-4,8)\ \ \ \ C(3,-4)\ \ \ \ \ B(x_B,y_B)=?\\$

See the graph below.

$\displaystyle\\\boxed {x_C=\frac{x_A+x_B}{2} }\\\\$

Multiply both parts of the equation by 2:

$2x_C=x_A+x_B\\2x_C-x_A=x_A+x_B-x_A\\2x_C-x_A=x_B$

Hence,

$x_B=2*3-(-4)\\x_B=6+4\\x_B=10$

$\displaystyle\\\boxed {y_C=\frac{y_A+y_B}{2} }$

Multiply both parts of the equation by 2:

$2y_C=y_A+y_B\\2y_C-y_A=y_A+y_B-y_A\\2y_C-y_A=y_B$

Hence,

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2 years ago

Samantha answered 90% of the questions on her math test and 80 % of the questions on her history test correctly. If each test ha

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Answer:

Samantha got 85 questions right.

Step-by-step explanation:

90% of 50 is 45.

80% of 50 is 40.

40 + 45 = 85

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3 years ago

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