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3 years ago

11

Write in terms of i. Simplify your answer as much as possible.

exFormula1" title="\sqrt{-80}" alt="\sqrt{-80}" align="absmiddle" class="latex-formula">

1 answer:

Katarina [22]3 years ago

6 0

Answer:

4√5i

Step-by-step explanation:

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What is 52% of 25? plzz helppp

Sonbull [250]

Answer: its 13

Step-by- 52 percent *25 =

(52:100)*25 =

(52*25):100 =

1300:100 = 13

step explanation:

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3 years ago

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If two lines in space do not intersect the lines must be parallel

n200080 [17]

False. they could be skew

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4 0

3 years ago

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Endpoints of segment MN have coordinates (0, 0), (5, 1). The endpoints of segment AB have coordinates (1 1/22 , 2 1/4 ) and (−2

Nana76 [90]

Answer: $k=18\dfrac{8}{11}$ .

Step-by-step explanation:

If a line passing through two points, then

$Slope=\dfrac{y_2-y_1}{x_2-x_1}$

Endpoints of segment MN have coordinates (0, 0) and (5, 1).

Slope of MN $=\dfrac{1-0}{5-0}=\dfrac{1}{5}$

The endpoints of segment AB have coordinates $\left(1\dfrac{1}{22} , 2\dfrac{1}{4}\right)$ and $\left(-2\dfrac{1}{4} , k\right)$ .

$A=\left(1\dfrac{1}{22} , 2\dfrac{1}{4}\right)=\left(\dfrac{23}{22} ,\dfrac{9}{4}\right)$

$B=\left(-2\dfrac{1}{4} , k\right)=\left(-\dfrac{9}{4} , k\right)$ .

Slope of AB $=\dfrac{k-\frac{9}{4}}{-\frac{9}{4}-\dfrac{23}{22}}$

$=\dfrac{\frac{4k-9}{4}}{\frac{-99-46}{44}}$

$=\dfrac{4k-9}{4}\times \dfrac{44}{-145}$

$=4k-9\times \dfrac{11}{-145}$

$=\dfrac{44k-99}{-145}$

Product of slopes of two perpendicular segments is -1.

Slope of MN × Slope of AB = -1

$\dfrac{1}{5}\times \dfrac{44k-99}{-145}=-1$

$\dfrac{44k-99}{-725}=-1$

$44k-99=725$

$44k=725+99$

$k=\dfrac{824}{44}$

$k=\dfrac{206}{11}$

$k=18\dfrac{8}{11}$

Therefore, the value of k is $k=18\dfrac{8}{11}$ .

8 0

4 years ago

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What is the minimum number of feet you should be to avoid being electrocuted by overhead power lines up to 50kV? A. 10 feet B. 1

Andrei [34K]

Answer:

I believe the answer is A 10 feet

Step-by-step explanation:

4 0

3 years ago

WILL MARK BRAINLIEST IF CORRECT!!!!!!!!!!!!!!!!!!!!

Kipish [7]

Answer:

4000 times

Step-by-step explanation:

<u>The numbers from 1 to 9999 can be shown in the form of:</u>

3xyz, x3yz, xy3z. xyz3

Each of x, y, z represent the digits from 0 to 9, so 10 ways each.

<u>For each of the forms we have:</u>

10*10*10 = 1000 ways and

<u>Total of:</u>

1000*4 = 4000 ways

By the way this is applicable to any digit.

3 0

3 years ago