2 years ago

A method of expressing a number as the product of a power of 10 and

Mathematics

2 answers:

GarryVolchara [31]2 years ago

6 0

Answer:

A. Scientific Notation

Step-by-step explanation:

Brainliest is appreciated, im one away :)

Rzqust [24]2 years ago

3 0

Answer:

A.Scientific Notation

Step-by-step explanation:

Brainiest please

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A rectangular patio measures 20 feet by 30 feet. By adding x feet to the width and x feet to the length, the area is doubled. Fi

Mariana [72]

Answer:

2400sq ft

Step-by-step explanation:

20×2 and 30×2

40×60

2400 sq ft

3 0

2 years ago

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Please please please please help

Solnce55 [7]

Answer:

31.40

Step-by-step explanation:

3.14 x 10

= 31.40

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2 years ago

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Given the circle with the diameter of 33 cm find the area of the circle

exis [7]

Answer:

51.81 cm^2

Step-by-step explanation:

Find The Half Of 33 which is 16.5

Use The Formula For Area

A= $\pi$ x r^2

A= 3.14 x 16.5

A= 51.81 cm^2

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2 years ago

Angle C is an inscribed angle of circle P. Angle C measures (-3x - 6)° and arc AB measures (-4x)° . Find x

Fynjy0 [20]

To find angle c, the fourmula is 1/2 of the intercepted arc. so, this would be (-3x-6)=(-4x)/2, then bring the 2 over, (-3x-6)2=-4x, multiply the 2, -6x-12=-4x, -2x=12, simplify, x=-6

check by plugging in.

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3 years ago

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What is the principal square root of -4

devlian [24]

Answer:

The principal square root of -4 is 2i.

Step-by-step explanation:

$\sqrt{-4}$ = 2i

We have the following steps to get the answer:

Applying radical rule $\sqrt{-a} =\sqrt{-1} \sqrt{a}$

We get $\sqrt{-4} =\sqrt{-1} \sqrt{4}$

As per imaginary rule we know that $\sqrt{-1}=i$

= $\sqrt{4} i$

Now $\sqrt{4} =2$

Hence, the answer is 2i.

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2 years ago