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lara [203]
3 years ago
11

WILL GIVE BRAINLIEST AND 30 POINTS ! √-100 = _ + _ lower case I

Mathematics
2 answers:
const2013 [10]3 years ago
4 0
+\- 10i
Square root of 100 is 10 & negative square root is I
salantis [7]3 years ago
3 0

Answer:

±10 i

Step-by-step explanation:

sqrt(-100)

We know that sqrt(ab) = sqrt(a) sqrt(b)

sqrt(-1) * sqrt(100)

sqrt(-1) = i

i * ±10

±10 i

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PLEASE HELP ASAP<br> Find the missing side lengths.
zimovet [89]
You can see it’s 90

You can also see it because. A triangle is 180 degrees so

45+45=90

180-90=90

So x=90
8 0
3 years ago
a street light is at the top of a 18 ft tall pole. a woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a s
shutvik [7]

The most appropriate choice for similarity of triangles will be given by -

Speed of tip of the shadow of woman  = 6 ft/s

What are similar triangles?

Two triangles are said to be similar, if the corrosponding angles of the triangles are same and the corrosponding sides of the triangles are in the same ratio.

Here,

The diagram has been attached here

Let the distance of woman from the pole be x ft and the distance of tip of the shadow to the pole be y ft.

Height of street light = 18 ft

Height of woman = 6ft

The two triangles are similar [As height of woman is parallel to the height of pole]

\frac{y - x}{6}=\frac{y}{18}\\18y - 18x = 6y\\18y - 6y = 18x\\12y = 18x\\y = \frac{18}{12}x\\y = \frac{3}{2}x\\

To find the speed, we have to differentiate both sides with respect to time 't'

\frac{dy}{dt} =\frac{3}{2}\frac{dx}{dt}\\\frac{dy}{dt}=\frac{3}{2} \times 4\\\frac{dy}{dt} = 6

Speed of tip of her shadow = 6 ft

To learn more about similarity of triangles, refer to the link-

brainly.com/question/14285697

#SPJ4

6 0
1 year ago
a store received 12 boxes of doughnuts. Each box contained 12 doughnuts. Which expression represents how many doughnuts there ar
Pachacha [2.7K]

Answer:

12x12=144 doughnuts

Step-by-step explanation:

3 0
3 years ago
What's 1 + 1? Get it correct for free points.
Taya2010 [7]
................2...............
6 0
3 years ago
Read 2 more answers
Ben is repackaging a 45-pound bag of rice into 8 smaller bags. How much rice is going to be in each smaller bags?
Anarel [89]
Each bag of rice is going to have 1/8 of the original amount, or 1/8 of 45.
45/8 = 5.625.
Each rice bag will have 5.625 pounds of rice.
4 0
3 years ago
Read 2 more answers
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