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riadik2000 [5.3K]
3 years ago
15

Simplify -3i sqrt -40 Enter your answer in simplest radical form

Mathematics
1 answer:
REY [17]3 years ago
8 0

Answer:

6\sqrt{10}

Step-by-step explanation:

-3i\sqrt{-40} \\= -3i\sqrt{(-1)(5)(8)} \\= -3i\sqrt{-1} \sqrt{(5)(2^{3})} \\= -3i(i)(2)\sqrt{(5)(2)} \\= 6\sqrt{10}

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A rectangle is 2 meters wide and 6 times as long as it is wide. Find the area and perimeter
Anna [14]

<u>PERIMETER</u>

Answer:

Answer is 28 m

Step-by-step explanation:

Breadth= 2m

Length= 2X6m

= 12m

Perimeter of a rectangle = 2X (Length+ Breadth)

= 2X (2+12)

= 2X14

= 28m

<u>AREA</u>

Answer:

Answer is 24 m

Explanation:

Length= 12

Breadth= 2

Area of a rectangle= Length X Breadth

= 12X2

= 24 sq. m

Hope it helps ;)

Please mark as brainliest!

4 0
2 years ago
The ___________ of a lens or mirror is a rotational symmetry axis of the surfaces.
densk [106]

Answer:

Optical axis

Step-by-step explanation:

Optical axis is the rotational symmetry axis of the surfaces.

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It is also called as the principal axis.

5 0
4 years ago
This is hard so i put more points and uhm this is stupid -w-
MAVERICK [17]

Answer:

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Imelda needs to convert 440 centimeters per minute to meters per hour.Which conversion factors should she use
Basile [38]
She should use the conversion factor of 100 centimeters to 1 meter and also the conversion factor of 60 minutes to 1 hour. 
7 0
3 years ago
True or False: The dependent variable is normally found on the horizontal axis of line graphs, bar graphs, and pictographs. True
matrenka [14]

Answer:

False.

Step-by-step explanation:

That is false. For y = x^2 the dependent variable is y.  The vertical axis  is used for the dependent variable.

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3 years ago
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