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max2010maxim [7]
3 years ago
7

Baby Ethan wants to arrange 4 blocks in a row. How many different arrangements can he make?

Mathematics
1 answer:
Degger [83]3 years ago
7 0
<span>Ethan wants to arrange 4 blocks in a row
we can calculate the number of different arrangements by making calculation in following way:
4 x 3 x 2 x 1 = 24 
24 different arrangement he can make.</span>
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Find the exact value of the trigonometric function given that sinU=-7/25 and cosV=-4/5 (Both U and V are in Quadrant III)
Contact [7]

cosU:-

\\ \rm\longmapsto \sqrt{1-sin^2U}=\sqrt{1-49/625}=24/25

As U lies in Q3

  • cosU=-24/25

sinV

\\ \rm\longmapsto \sqrt{1-cos^2V}=\sqrt{1-16/25}=3/4

As V lies in Q3

  • sinV=-3/5

So

  • sin(V-U)=sinVcosU-cosVsinU=(-3/5)(-24/25)-(-4/5)(-7/25)=72/125-28/125=72-28/125=<u>4</u><u>4</u><u>/</u><u>1</u><u>2</u><u>5</u>
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3 0
2 years ago
You start at (5,3) you move down 4 units and up 6 units. where do you end?
Anestetic [448]

You end up at the point (5, 5).

7 0
3 years ago
2.25k - 20 = 6.5k + 14 please help me solve this step by step asap!
Rom4ik [11]
Answer:

k= -8

Explaining:


Move variable to the left-hand side and change its sign.

2.25k - 6.5k - 20= 6.5k - 6.5k + 14


Since two opposites add up to zero, remove them from the expression.

2.25k - 6.5k - 20= 14

Collect like terms!

-4.25k = 14 + 20

Add the numbers

-4.25k = 35


Divide both sides of the equation by -4.25

So you will get the answer: k= -8
8 0
3 years ago
QUICK
Anvisha [2.4K]
Multiply 20 and 12 then divide hope this helps :)
7 0
3 years ago
Read 2 more answers
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Crank
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