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garri49 [273]
3 years ago
12

Four friends are waiting in line. how many different ways can they arrange themselves in that line?

Mathematics
2 answers:
Serhud [2]3 years ago
4 0

Answer:

Step-by-step explanation:

Say their names are A,B,C,and D.

You can put A,B,C,D.

D,C,B,A

C,D,B,A

C,D,A,B

C,A,D,B

C,A,B,D

mixer [17]3 years ago
3 0

Answer:

(5)(4)(3)(2)(1)= <u>120. </u>your answer will be 120

Step-by-step explanation:

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The answer is A please Mark as brainless
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The equation y=7.6x represents a proportional relationship. What is the constant of proportionality?
SCORPION-xisa [38]
I’m not too sure fam
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There is a tall tree in ivas backyard. She thinks it might hit her house if it fell over. She measures that the base of the tree
GrogVix [38]

Answer:

The height of the tree is Greater than 50 feet, so Iva’s house is not safe

Step-by-step explanation:

Find the height of the tree

Let

h ----> the height of the tree

we know that

The tangent of angle of 50 degrees is equal to divide the opposite side to the angle of 50 degrees (height of the tree) by the adjacent side to the angle of 50 degrees (tree’s distance from the house)

so

tan(50°)=h/50

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7 0
3 years ago
Find the perimeter of the object <br><br> Help step by step please!
aliina [53]

Answer:

29.42 units

Step-by-step explanation:

<u>1) Find the perimeter around the semi-circle</u>

To do this, we find the circumference of the circle using the given diameter:

C=\pi d where d is the diameter

Plug in 6 as the diameter

C=\pi (6)\\C=6\pi

Divide the circumference by 2

\frac{6\pi }{2} \\= 3\pi

Therefore, the perimeter around the semi-circle is 3π units.

<u>2) Find the perimeter around the rest of the shape</u>

Although it's impossible to determine the lengths of the varied sides on the right side of the shape, we know that all of those <em>vertical</em> sides facing the right add up to 6. We also know that all of those <em>horizontal </em>sides facing up add up to 7. Please refer to the attached images.

Therefore, we add the following:

7+6+7

= 20

Therefore, the perimeter around that area of the shape is 20 units.

<u>3) Add the perimeter around the semi-circle and the perimeter around the rest of the shape</u>

20+3\pi \\= 20+9.42\\= 29.42

Therefore, the perimeter of the shape is approximately 29.42 units.

I hope this helps!

3 0
3 years ago
Can someone help? Please explain how you got your answer.
frez [133]
The tablecloth has 42" diameter.
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The tablecloth has 58" diameter.
The radius is half the diameter.
Radius = diameter/2 = 58"/2 = 29".
Answer: The radius of the tablecloth is 29".

3 0
3 years ago
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