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Korvikt [17]
3 years ago
10

Which of the following could be points on the unit circle?

Mathematics
1 answer:
ratelena [41]3 years ago
4 0

Answer:

Step-by-step explanation:

In each case, square the coordinates of the point and determine whether or not the sum of these squares is 1:

A)  4/9 + 5/9 = 9/9  YES

B)  1 + 1 = 2 NO

C) 3/4 + 1/9 Not equal to 1.  NO

D) 0.64 + 0.36 = 1.00 YES

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If a single card is drawn from a standard 52-card deck, what is the probability that it is either a heart or king
Valentin [98]
There are 4 of each card so 4 kings and there is 13 cards so 13 chances of a heart so 4/52+13/52= 17/52 is your answer.
4 0
3 years ago
Sara earned $7.25 per hour plus an additional $105 in tips waiting tables last week. She earned at least $329.75. If h
jonny [76]

Answer:

The minimum number of hours that Sara could have worked is 31 hours .

The inequality representation of possible value of h is                               105 + 7.25 h \geq329.75  

Step-by-step explanation:

Given as :

The earning of Sara in per hour amount = $7.25 per hour

The additional earning of Sara as tips = $105

The Total earning of Sara = $329.75

Let The minimum number of hours that Sara could have worked =  h hours

<u>Now, According to question</u>

The Total earning of Sara = The earning of Sara in per hour amount × minimum working hours + The additional earning of Sara as tips

I.e $329.75 = $7.25 per hour × h + $105

Or, $105 + $7.25 per hour × h = $329.75

Or, $7.25 per hour × h = $329.75 - $105

Or, 7.25 per hour × h = 224.75

∴ h = \dfrac{224.75}{7.25}

I,e h = 31 hours

So, The number of hours Sara worked = h = 31 hours . Answer

Hence, The minimum number of hours that Sara could have worked is 31 hours .

The inequality representation of possible value of h is                               105 + 7.25 h \geq $329.75  

Answer

4 0
4 years ago
+++++
Strike441 [17]

Step-by-step explanation:

++++5

+++++++_2

1=false

true

false

false

4 0
2 years ago
Read 2 more answers
X/2 = 8<br> anyone know how to work this out?
Alexus [3.1K]

X/2 = 8

▶ ️2 = 8 × X. (transposing X to RHS )

▶️ 2 = 8X

▶ ️X = 8/2. (transposing 2 to RHS )

▶️ X = 4

hence the value of X is 4.

3 0
3 years ago
Read 2 more answers
What is this? I need help with a 3 of them.
Margarita [4]
For both people pay = 8w. this DOES NOT mean they made the same money. the hourly wage w could (very likely/ be different for the two employees
6 0
3 years ago
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