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cluponka [151]
3 years ago
8

How do i solve for y and x?

Mathematics
2 answers:
yawa3891 [41]3 years ago
6 0
Use the 30-60-90 rule

X= 18 and y=6sqrt3
Akimi4 [234]3 years ago
4 0

Answer:

You use the facts about a 30, 60, 90 triangle.

Step-by-step explanation:

The angles in a triangle add up to 180.

90+30+x=180

120+x=180

x=60

This is a 30-60-90 right triangle.

The side opposite the 30 degree angle is a.

The side opposite the 90 degree angle (hypotenuse) is 2a.

The side opposite the 60 degree angle is a\sqrt{3}

We know the side opposite the 90 degree angle.

2a = 12\sqrt{3}

Divide by 2.

a=6\sqrt{3}

a is the side opposite the 30 degree angle (y)

Because we know a, we can find a\sqrt{3}.

6\sqrt{3 } (\sqrt{3})

The square roots cancel, leaving 3.

6 times 3 is 18.

Therefore, the side opposite the 60 degree angle (x) is 18.

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Pls help me solve this one please..<br> (3/4)to the 2nd power +(1/2)to the second power
andriy [413]
9/16 + 1/4
9+4/16
13/16

Alternative form
0.8125
5 0
3 years ago
You have 4/5 cup of brown sugar in your cupboard. the recipe for a dessert calls for 1/4 cup of brown sugar. how much brown suga
Ira Lisetskai [31]

Answer:


Step-by-step explanation:

4/5 cup of brown sugar. Needs 1/4 cup. How many cups left?

Okay, so 4/5 = 0.80, 1/4=0.25.

0.80-0.25=0.55

Which is 55/100

Divide both numbers by 5

11/20

7 0
3 years ago
The original price of a jacket is $75 , you have a 25% off coupon, how much will you pay for the jacket
Damm [24]

Answer:

18.75

Step-by-step explanation:

75 is the 100% price. If you divide 75 by two you will get the 50% price. Which is 37.5. If you divide that by two you will get the 25% price which is 18.75

4 0
3 years ago
Please help me with this! I have been stuck on it for 15 minutes now!!
Romashka [77]

The answer is C and E.

We need to first understnad that percentage can be converted into decimal numbers and fraction:

100% = 1.0 or 100/100

Hence:

40% = 0.4 or 40/100

To find the percentage of number, we use multiplication (which is also represented by the dot in the above options).

As C. and E. has the correct value, they are the correct answers.

Hope it helps!

3 0
3 years ago
The function T(h) = -15 + 3h represents the outside temperature (in degrees Fahrenheit) of Unalakleet, Alaska, where h represent
vodka [1.7K]
Since 3:00 a.m is three hours after midnight, the variable h in the function would be three.

T(h) = -15 + 3h     step 1 - write the equation
T(3) = -15 + 3(3)   step 2 - plug in h, which is three
T(3) = -15 + 9       step 3 - simplify the expression
T(3) = -6
4 0
3 years ago
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