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harina [27]
3 years ago
7

Find the value of x and the value of y.

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Using the sine ratio on the right triangle on the right side

sin30° = \frac{opposite}{hypotenuse} = \frac{y}{8}

Multiply both sides by 8 × sin30° = y

⇒ y = 8 × \frac{1}{2} = 4 → C

Andre45 [30]3 years ago
3 0

This would be D cause these are 30,60, 90 angles. 30 (X) 60(X square root of 3 and 90 2x).

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Is 61/100 bigger than, less than, or equal to 2/5
sergey [27]
\dfrac{2}{5}=\dfrac{40}{100}

so \dfrac{61}{100} is bigger
5 0
3 years ago
What is the slope of the line passing through the following points (-2,5) & (1,-7)?
igor_vitrenko [27]

Answer:

-12/3

Step-by-step explanation:

The formula to get slope is m=y1-y2 and x1-x2

REMEMBER SLOPE IS Y/X NOT X/Y

7 0
2 years ago
How many words can be formed by using the W,X,Y,Z if repetitions is not allowed?
Setler [38]

Answer:

24

Step-by-step explanation:

What you have here is a permutation, seeing as each element can only be used once.

We have 4 letters initially, so we can choose any 1 as our first letter. We have 4 choices for our first letter

However, once we choose our first letter, we can't use it anymore, so, for our second letter, we can only choose from the remaining 3 letters.

Furthermore, once we choose our second letter, we can only choose our 3rd letter from the remaining two letters we didn't choose yet.

Finally, our last letter will always be the one we didn't choose the last 3 times. So there is only one choice here.

Going off of this, we have four choices for the 1st letter, three choices for the 2nd letter, two choices for the 3rd letter, and one choice for the 4th letter

The way to calculate how many permutations we have without repetition is using factorials

N!

Where N is the number of elements you have.

In this case, it would be 4!

4! is 4 * 3 * 2 * 1

Which equals 24

If you notice, each number in 4! is the number of options we have for each choice. 4, then 3, and so on

5 0
2 years ago
A store brought 9 cases of light bulbs in May and 8 cases in June. There are 48 light bulbs in a case. How many light bulbs did
UkoKoshka [18]
So the store bought 9 cases of lightbulbs and in a case, there are 48.
9 * 48 = the number of lightbulbs in the nine cases. 432 is the number of light bulbs in the 9 cases they bought in May. So then let's move on to the cases they bought in June. Do the same thing 8 * 48 is 384. So then add the two amounts together and then you will get 816 which will be your answer. I hope this helps!
5 0
3 years ago
Read 2 more answers
3+1<br><br> eqauls what n bhkjcvbsofkhjouidgvgvufg
IRISSAK [1]
3+1=4
As all parents would teach their babies simple math...take three candies and take one more. How many candies do you have now? Four
7 0
3 years ago
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