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4 years ago

I need help with this may question

Mathematics

2 answers:

Anastaziya [24]4 years ago

3 0

The answer is 3) 400

ad-work [718]4 years ago

3 0

Answer:

Step-by-step explanation:

To figure out how many times the population of India is as compared to the US, we take the population of India and divide by the population of the US

Population of India/population of US

1.2*10^9 /300000000

I will change 300000000 into scientific notation by moving the decimal 8 places to the left, so it becomes 3 *10^8

1.2*10^9 /3* 10^8

Now we divide the numerals and subtract the exponents

1.2/ 3 * 10^(9-8)

.4 * 10^1

.4*10

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Area of a rectangle is 81 m^2. Express the perimeter of the rectangle as a function of the length (L) of one of its sides

LuckyWell [14K]

Answer:

$P = 2\bigg(\dfrac{l^2 + 81}{l}\bigg)~m$

Step-by-step explanation:

We are given the following in the question:

Area of rectangle = 81 square meter.

Let l be the length of the rectangle and b be the breadth of rectangle.

Then, we can write,

$\text{Area of rectangle} = \text{Length}\times \text{breadth}\\A = l\times b\\81 = l\times b\\\\b = \dfrac{81}{l}~m$

Perimeter of rectangle =

$2(\text{Lenght + Breadth})$

Putting values, we get,

$P = 2(l + b)\\P = 2(l + \dfrac{81}{l})\\\\P = 2\bigg(\dfrac{l^2 + 81}{l}\bigg)~m$

6 0

4 years ago

-3.6≥-0.3a+1.2<br> please help i will mark brainliest

scoundrel [369]

Answer:

a≥16

Step-by-step explanation:

1. Move the terms

2. caculate

3. Divide both sides.

3 0

3 years ago

Read 2 more answers

What is the solution to this equation? Please show your work

____ [38]

Answer: d. 2.52

Step-by-step explanation:

5x = 30.16 - 17.56

5x = 12.6

X = 12.6/5 = 2.52

3 0

3 years ago

Please help me please

Gala2k [10]

Answer:

Step-by-step explanation:

Andrew, Blake, Jamal, Ernesto

6 0

3 years ago

Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s actual height is 4

Oduvanchick [21]

Percentage of error by Clare is estimated as 4.1667 %

Height measured by Clare = 4 feet

Height measured by Doctor = 4 feet, 2 inches

Percentage error = ?

Percentage error = Difference/ Actual height *100

Percentage error = (2/ (4*12))*100

Percentage error = 4.1667 %

The accurate height is measured by Doctor, as he have more accurate measurement system.

3 0

3 years ago