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3 years ago

What is the interquartile range of the following data? 52,61,31,44,47,45,25,48,47

1 answer:

4 0

Interquartile range is the difference between the 25th percentile and the 75th percentile. in this case, we divide the arranged (ascending) data into two parts and further divide each into two parts. q25th is equal to 37.5 while q75th is equal to 50. iqr in this case is equal to 12.5

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The radius of Earth is about 3960 miles. The radius of the moon is about 1080 miles. a. Find the surface area of Earth and the m

Molodets [167]

A) The formula for surface area of a sphere is A = 4*PI*r^2

using 3.14 for PI:

Surface area for Earth = 4 * 3.14 x 3960^2 = 196,960,896 miles^2

Surface area of the moon: 4 * 3.14 * 1080^2 = 14,649,984 miles^2

B)Divide the Surface of the Earth by the moon:

196,960,896 / 14,649,984 = 13.44

The Earths surface is 13.4 times larger than the moon.

C) Multiply the surface of the Earth by 70%:

196,960,896 * 0.70 = 137,872,627.2 million square miles of water.

4 0

4 years ago

Find the gradient of the line passing through (6,8) and (4,10)

Mariulka [41]

Question:

Find the gradient of the line passing through (6,8) and (4,10).

Answer:

-1 is the right answer.

Step-by-step explanation:

Slope of the line = The gradient of the line

Gradient of the line is known as change in the value of y-axis by change in the value of x-axis

Gradient = ∆y\∆x

$Gradient = \frac{y_ 2 - y_1}{x_2 - x_1} = \frac{(10 - 8)}{(4 - 6)} = \frac{(2)}{(- 2)} =\boxed{- 1}\\$

7 0

3 years ago

Tan weighs 146 pounds. Minh weighs 15 pounds more than Tan. How much does Minh weigh?

dimaraw [331]

Given parameters:

Weight of Tan = 146pounds

Unknown:

Weight of Minh = ?

Following this problem step wisely, we can derive a solvable algebraic equation;

Let the weight of Minh = M

In the second sentence, we see that Minh weighs 15pounds more than Tan;

So;

M = 15 + Weight of Tan

Since we already know the weight of Tan,

Weight of Minh = 15 + 146 = 161pounds

We clearly see that Minh's weight will be 161 pounds.

3 0

4 years ago

Explain why you cannot factor the trinomial x(to the power of 2)−12x+6

Vladimir [108]

Answer:

See below

Step-by-step explanation:

You cannot find two whole number integers that give a sum of -12 and a product of 6.

-1 + -11 = -12, but (-1)(-11) = 11, which isn't 6

-2 + -10 = -12, but (-2)(-10) = 20, which isn't 6

...and so on...

4 0

2 years ago

Read 2 more answers

Help me plz!<3 asap

nexus9112 [7]

Answer:

73,58,107,49,131

Step-by-step explanation:

m∠1=73°because alternate interior angles

m∠2= 180-49-73=58° because straight lines make 180° angles

m∠3=58+49=107° because alternate interior angles

m∠4 =49° because alternate interior angles

m∠5=180-49=131° because straight lines make 180° angles

7 0

3 years ago

Read 2 more answers