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wel
3 years ago
5

Find the value of each variable

Mathematics
1 answer:
storchak [24]3 years ago
8 0

Answer:

x=12.124

y=14

Step-by-step explanation:

tan(30)= 7/x

x= 7/tan(30)

sin(30)= 7/y

y= 7/sin(30)

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Plz show work and answer thx u will get 100 points and make sure it's right
netineya [11]
For Answer A, it is 3/4 because there are 4 donuts in total and you have 3 glazed and 1 chocolate, so it will be 3 over 4.
For Answer B, it is 75% because 3 over 4 is 0.75 and if you put it in percentage, then it will be 75%.
7 0
3 years ago
Item 9 Write an equation that you can use to find the value of x. Perimeter of triangle: 16 in.
Tanya [424]

Answer:

16 = 3x

Step-by-step explanation

Find the diagram attached.

Perimeter = sum of all its sides

Sum of all its sides= x+x+x

Sum of all its sides = 3x

Given perimeter = 16in

Equating both;

3x = 16

x = 16/3

x = 5.33in

Hence the value of x is 5.33 and the required equation is 16 =3x

6 0
3 years ago
Question 17&18. Make x the subject of the formula
aniked [119]

Answer:

17. x = y^2 - 2ay +a^2

18. x = y^2 - a

Step-by-step explanation:

17. Since we want to make x the subject of the formula, we first isolate the square root of x and get

\sqrt{x} = y - a.

squaring both sides,

x = y^2 - 2ay +a^2

18. Since both x and the a are under the square root, we first start by squaring both sides.

So y^2 = x+a.

Isolating the x, we get

x = y^2 - a

4 0
3 years ago
Write an equation of the line passing through the point (-10,3) that is parallel to the line 5x+2y=12
dangina [55]

y= (-5/2)x - 22

because 5x+2y=12 turns to y=(-5/2)x + 6 and the line parallel to it has to have the same slope so you have to just get the y intercept by plugging in -10 into the equation (-5/2)(-10)+?=3 and ?= -22.

4 0
3 years ago
Find the surface area of the composite solid.
s344n2d4d5 [400]

Answer:

If I'm correct, it would be 570. Sorry if this is incorrect.

Step-by-step explanation

5x13=65

5x13=65

10x10=100

12x10=120

10x10=100

12x10=120

Add all together

5 0
3 years ago
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