3 years ago

Help with exam 11 please

Mathematics

1 answer:

Feliz [49]3 years ago

5 0

Answer:

Step-by-step explanation:

Hope this helps u!!

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If i=√-1 , what is i^2 equal to ?

Alja [10]

Answer:

-1

Step-by-step explanation:

If i = √-1, then i^2 = -1.

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3 years ago

#2 Find the slope given the points (6,-12) and (15,-3)*

castortr0y [4]

Greetings :)

To find slope of two points we will need to use this equation: $\frac{y^2-y^1}{x^2-x^1}$

$x^1$ $x^2$ $y^1$ $y^2$

( 6 , -12 ) ( 15 , -3 )

Now let's replace the equation with the numbers. (it will be a fraction).

$\frac{-3-(-12)}{15-12}$ = $\frac{9}{9}$

The equation equals 9 over 9, which also equals 1.

The slope of the line is 1.

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3 years ago

Which expressions show how 6 • 45 can be rewritten using the distributive property?

Gekata [30.6K]

20.6+20.5 would be your answer

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3 years ago

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Marla did 65 sit ups each day for one week use the distributive property to show an expression you can use to find the total num

Elis [28]

7(65)=total sit-ups
You get 455

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3 years ago

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f(x) = 500(1.05)x What was the average rate of change of the value of Sophia's investment from the second year to the fourth yea

hjlf

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)=500(1.05)^x \qquad 
\begin{cases}
x_1=2\\
x_2=4
\end{cases}\implies \cfrac{f(4)-f(2)}{4-2}
\\\\\\
\cfrac{[500(1.05)^4]~-~[500(1.05)^2]}{4-2}\implies \cfrac{56.503125}{2}\implies 28.2515625$

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3 years ago