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NNADVOKAT [17]
2 years ago
14

Can someone please help me graph this and write an equation for it. ​

Mathematics
1 answer:
Viefleur [7K]2 years ago
6 0
10 and 20
And now I need 20 characters so I am writing this
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Sales records at an automobile dealership show that they sold 40 red cars one month. Of those cars, 25 were new cars and 15 were
Sliva [168]
You find the probability of an event happening if you divide the number of times that event has actually happened in the experiment by the number of total events that has happened. If you want to find the probability of the used car, you have to know..

how many used cars were there? 15
how many cars were there? 40

Therefore, the probability of buying a used car is 15/40 or 3/8.
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3 years ago
What shape is produced when slicing a hexagonal prism perpendicular to the base?
Feliz [49]

Answer:

hexagonal shape

Step-by-step explanation:

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5 0
3 years ago
will use 3/4 cup of olive oil to make 3 batches of salad dressing .how much oil does Will use for one batch of salad dressing?
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You do 3/4 divided by 3 which is 1/4
3 0
3 years ago
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Scott works on cars. He charges $35 for each car plus $7 per hour. The total bill was $63. The equation that matches this is 35x
GuDViN [60]
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3 0
3 years ago
If sinA=√3-1/2√2,then prove that cos2A=√3/2 prove that
Ivan

Answer:

\boxed{\sf cos2A =\dfrac{\sqrt3}{2}}

Step-by-step explanation:

Here we are given that the value of sinA is √3-1/2√2 , and we need to prove that the value of cos2A is √3/2 .

<u>Given</u><u> </u><u>:</u><u>-</u>

• \sf\implies sinA =\dfrac{\sqrt3-1}{2\sqrt2}

<u>To</u><u> </u><u>Prove</u><u> </u><u>:</u><u>-</u><u> </u>

•\sf\implies cos2A =\dfrac{\sqrt3}{2}

<u>Proof </u><u>:</u><u>-</u><u> </u>

We know that ,

\sf\implies cos2A = 1 - 2sin^2A

Therefore , here substituting the value of sinA , we have ,

\sf\implies cos2A = 1 - 2\bigg( \dfrac{\sqrt3-1}{2\sqrt2}\bigg)^2

Simplify the whole square ,

\sf\implies cos2A = 1 -2\times \dfrac{ 3 +1-2\sqrt3}{8}

Add the numbers in numerator ,

\sf\implies cos2A =  1-2\times \dfrac{4-2\sqrt3}{8}

Multiply it by 2 ,

\sf\implies cos2A = 1 - \dfrac{ 4-2\sqrt3}{4}

Take out 2 common from the numerator ,

\sf\implies cos2A = 1-\dfrac{2(2-\sqrt3)}{4}

Simplify ,

\sf\implies cos2A =  1 -\dfrac{ 2-\sqrt3}{2}

Subtract the numbers ,

\sf\implies cos2A = \dfrac{ 2-2+\sqrt3}{2}

Simplify,

\sf\implies \boxed{\pink{\sf cos2A =\dfrac{\sqrt3}{2}} }

Hence Proved !

8 0
2 years ago
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