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3 years ago

What is the probability of choosing a diamond card out a regular deck of 52?

2 answers:

8 0

<span>There are 13 diamonds and each has the same probability of being chosen, namely, 1/13. 3 of the diamonds are face cards. Therefore, the probability of choosing a face card given that it's a diamond is 3/13.</span>

bazaltina [42]3 years ago

3 0

There are 13 diamonds in a regular deck of cards.

So the probability of picking a diamond card is 13/52.

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Which number line represents the solution to the inequality –4w + 7 < 75 ?

timama [110]

Answer:

w > − 17

Step-by-step explanation:

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3 years ago

Write the expression as the sine or cosine of an angle sin(pi/7) cos(x) + cos(pi/7) sin(x)

Natasha_Volkova [10]

Answer:

$\sin(\frac{\pi}{7}+x)$

Step-by-step explanation:

We are going to use the identity

$\sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)$

because this identities right hand side matches your expression where

$a=\frac{\pi}{7}$ and $b=x$ .

So we have that $\sin(\frac{\pi}{7})\cos(x)+\cos(\frac{\pi}{7})\sin(x)$ is equal to $\sin(\frac{\pi}{7}+x)$ .

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3 years ago

If 15/x is equal to 75/100 what is x

Hatshy [7]

15/x=75/100
15/x=3/4
times 4x both sides
4*15=3x
60=3x
divide both sides by 3
20=x

7 0

3 years ago

Read 2 more answers

Would the balance be positive or negative if this happened:

natka813 [3]

A- positive
B-negative
C-positive
A was positive because 5-2 would be positive 3.
B was negative because 8-12 would be negative 4.
C was positive because -5+8 is positive 3.

4 0

3 years ago

if you invest $4,000 in an account that earns 3% interest. How much will you have in the account in 10 years?

Dmitrij [34]

Answer:

18,000

Step-by-step explanation:

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3 years ago