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mote1985 [20]
3 years ago
14

Simplify the following expression into the form a + bi, where a and b are rational numbers. (4-i)(-3+7i)-7i(8+2i), please help

Mathematics
2 answers:
olganol [36]3 years ago
8 0

Answer:

9-25i is the answer

atroni [7]3 years ago
7 0
9-25i is the answer to your question
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Reduce the fraction to lowest terms m^2/m^2-n^2
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Answer:

\boxed{\bold{\frac{m^2}{\left(m+n\right)\left(m-n\right)}}}

Step-by-step explanation:

Factor \bold{m^2-n^2}

\bold{\left(m+n\right)\left(m-n\right)}

Rewrite Equation

\bold{\frac{m^2}{\left(m+n\right)\left(m-n\right)}}

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Is this a function. ?
lisabon 2012 [21]

Answer:

Yes

Step-by-step explanation:

A function is a relation where each input has only one output

The table shown follows this, each input has only one output, therefore it is a function.

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Question
Goryan [66]

Given:

(2, 4) and (3, 3) are on the line.

To find:

The equation of line in point slope form.

Solution:

If a line passes through a point (x_1,y_1) with slope m, then the point slope form of the line is

y-y_1=m(x-x_1)

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m=\dfrac{y_2-y_1}{x_2-x_1}

m=\dfrac{3-4}{3-2}

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y-4=-1(x-2)

Therefore, an equation of the line in point slope form is y-4=-1(x-2).

8 0
2 years ago
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ddd [48]

Answer:

1. SAS

2. SSS

3. ASA

4. AAS

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3 years ago
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Arlecino [84]

Answer:

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Step-by-step explanation:

Retrieving data from the original question:

f(x)=x^{2}+8\:over\:[-1,4]

1) Calculating the first derivative

f'(x)=2x

2) Now, let's work to find the critical points

Set this

2x=0\\x=0    

0, belongs to the interval. Plug it in the original function

f(0)=(0)^2+8\\f(0)=8

3)  Making a table x, f(x) then compare

x|  f(x)

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4) The absolute maximum value is 24 at x=4 and the absolute minimum value is 8 at x=0.    

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