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3 years ago

Simplify the expression. Write the answer using scientific notation.

Mathematics

1 answer:

bonufazy [111]3 years ago

4 0

Answer:

C. 2.5×10^-27

Step-by-step explanation:

(2×10^-13)^-2 = 2^-2 × 10^(13×(-2)) = 1/4 × 10^-26

= 0.25 × 10^-26 = 2.5 × 10^-27

___

Your scientific or graphing calculator can compute and display this for you.

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I need the explanation and the answer of 14/40 in simplest form

Korvikt [17]

Answer:

$\frac{7}{20}$

Step-by-step explanation:

To simplify a fraction, you need to find the GCF (Greatest Common Factor) of the numerator (top number) and denominator (bottom number).

Factors of 14:

1, 2, 7, 14

Factors of 40:

1, 2, 4, 5, 8, 10, 20, 40

As you can see, 2 is the GCF of 14 and 40. So, we now divide both numbers by 2.

14 ÷ 2 = 7

40 ÷ 2 = 20

Therefore, $\frac{14}{40}$ in simplest form is $\frac{7}{20}$

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3 years ago

And ice cream company received an order of 1200 ice cream bars .the store will keep 140 to sell in their main store . The rest w

wlad13 [49]

Do 1200 minus 140 and then divide the answer by 20

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3 years ago

A flower box in the shape of a right rectangular prism is made of thin metal, shown below. The box has length 90 centimeters (cm

masya89 [10]

1) Volume of the box = 90*45*45=182250 cm³
2) filled with soil = 0.85*182250= 154912.5 cm³
3) 182250 cm³-154912.5 cm³=27337.5 cm³ not filled
4) 27337.5 cm³/28316 cm³=0.9654 ≈ 1 bag

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3 years ago

The ratio of collectible coins Juanita owns to coins that Elia owns is 3:1. Elia has 32 coins. How will the ratio of Juanita’s c

yaroslaw [1]

Hi there Maebe, since the ratio is 3:1 your answer is 96.

The ratio 3:1 is just saying Juanita has 3 times whatever Elita has. So, Elita’s 32 times 3 equals 96. :) I hope I’ve helped you. Please give me feedback if you need more help understanding!

7 0

3 years ago

PLEASE HELP ILL GIVE BRAINLIEST

DanielleElmas [232]

Option A:

$(x-5)^{2}+(y-3)^{2}=16$

Solution:

Given data:

Center of the circle is (5, 3).

Radius of the circle = 4

To find the equation of the circle:

The general form of the equation of a circle in centre-radius format is

$(x-h)^{2}+(y-k)^{2}=r^{2}$

where (h, k) is the centre of the circle and r is the radius of the circle.

Substitute the given values in the equation of a circle formula:

$(x-5)^{2}+(y-3)^{2}=4^{2}$

$(x-5)^{2}+(y-3)^{2}=16$

The equation of the given circle is $(x-5)^{2}+(y-3)^{2}=16$ .

Hence Option A is the correct answer.

5 0

3 years ago