Find the exact value of sin v/2, given tanv=12/5 and pi

Answer:

substitute the value of y into the equation 7x+3y = 35

7x + 3(x+5) = 35 (distribute 3 through the parenthesis)

7x + 3x + 15 = 35

collect the like terms

7x + 3x = 35 - 15

10x = 20 (divide both sides by 10)

x = 2

substitute x = 2 into the equation y = x + 5

y = 2 + 5

y = 7

Answer:

hope this helps you out :)

Answer:

Step-by-step explanation:

using pythagoras theorem

h^2=p^2+b^2

h^2=3^2+3^2

h^2=9+9

h^2=18

h=[tex]\sqrt{18}[/tex]

h=3[tex]\sqrt{2}[/tex]

Answer:

A. They are both Solutions

Step-by-step explanation:

Answer:

Both are solutions

Step-by-step explanation:

5x8 is less than 52, and so is 5x10

Answer:

The cost per widget will never be greater than $25

Answer:

The answer is 3/2

Step-by-step explanation:

5/6+4/6= 9/6

simplified is 3/2

Answer:  1  1/2

Step-by-step explanation:

Answer:

SA ≈ 434.5 cm²

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = [tex]\frac{4}{3}[/tex]πr³ ( r is the radius )

The surface area (SA) is calculated as

SA = 4πr²

To find r use the volume formula

[tex]\frac{4}{3}[/tex]πr³ = 850 ( multiply both sides by [tex]\frac{3}{4}[/tex] to clear the fraction )

πr³ = 637.5 ( divide both sides by π )

r³ = [tex]\frac{637.5}{\pi }[/tex] ( take the cube root of both sides )

r = [tex]\sqrt[3]{\frac{637.5}{\pi } }[/tex] ≈ 5.88 cm ( to 2 dec. places )

Then

SA = 4π × 5.88² ≈ 434.5 cm² ( to 1 dec. place )

Answer:

X = 13

X = 70

Step-by-step explanation:

1. Since it is a right angle set the equation up as X +2 + 75 = 90.

X =13

2. Set up x - 20 + 40 = 90 since right triangles are 90 degrees

x = 70

Answer:

x = - 1 ± [tex]\sqrt{7}[/tex]

Step-by-step explanation:

let y = 0

x² + 2x - 6 = 0 ( add 6 to both sides )

x² + 2x = 6

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(1)x + 1 = 6 + 1

(x + 1)² = 7 ( take the square root of both sides )

x + 1 = ± [tex]\sqrt{7}[/tex] ( subtract 1 from both sides )

x = - 1 ± [tex]\sqrt{7}[/tex] , that is

x = - 1 + [tex]\sqrt{7}[/tex] , x = - 1 - [tex]\sqrt{7}[/tex]

Answer:

147°

Step-by-step explanation:

180 - 33 = 147

Answer:

147

Step-by-step explanation:

x is on a straight line so the whole line equals 180

180-33= 147

I think that's correct

Answer:

105 dollars after a year

Step-by-step explanation:

I = (100)(0.05)(1)

I = 5

Answer:

[tex]\frac{1}{11}[/tex]

Step-by-step explanation:

[tex]\frac{3}{12}\cdot \frac{4}{11}[/tex][tex]=\frac{1}{11}[/tex]

Hope this helped! :)

Answer:

7 I think

Hope's ti helps

Answer:

10

Step-by-step explanation:

d² = (x2  - x1)² + (y2 - y1)²

d² = (-2 - 4)² + (-4 - 4)²

d² = (-6)² + (-8)²

d² = 36 + 64

d² = 100

d = 10

Answer:

Step-by-step explanation:

Answer:

9.82 feet

Step-by-step explanation:

the perimeter of the window is the circumference of a semi-circle with a diameter of 5

P = (πd)/2     (divided in half because it's only half a circle)

P ≈ 3.14(3.5) which is approx 11

11 is closest to 9.82

Answer:

9.82 Is the Closest

Step-by-step explanation:

First of all, you can see its a half circle, meaning if we make it a full circle, the length of the center is 5, so the full circle's area is about 19.5-20. Now to find the area of the half circle/windows we get 9.75 - 10. The only number between that is 9.82, which should be you answer.

Have a nice day!

If this answer helped you, please give Brainliest.

Answer:

Step-by-step explanation:

Area of sides:

Area of the bottom:

Total area:

Paint needed:

Answer:

red

Step-by-step explanation: convert all of the fractions to have same denominator which would be 20 and see which is the smallest

Answer:

a) red

Step-by-step explanation:

make all denominators the same.

red= 3/20

yellow= 8/20

green= 5/20

purple= 4/20

Answer:

??????????????????? 3+1

Step-by-step explanation:

Answer:2x(2yz + 5)

Step-by-step explanation:

Answer:

x = 40

Step-by-step explanation:

x + 10 = 2x - 30

    40 = x

40 + 10 = 2(40) - 30

      50 = 50

Answer:

caste system, they were commonly used to show the groups of people in their social hierarchies

Answer: 5 times

Step-by-step explanation:

Let the number of times that he saved $75 be x.

Let the number of times that he saved $150 be y.

Therefore, based on the information given in the question, we can form an equation which will be:

x + y = 8 ...... i

75x + 150y = 825 ....... ii

From equation I,

x + y = 8

y = 8 - x....... iiii

Put equation iii into ii and this will be:

75x + 150y = 825

75x + 150(8 - x) = 825

75x + 1200 - 150x = 825

75x - 150x = 825 - 1200

-75x = -375

x = 375/75

x = 5

He saved $75 5times from his paycheck.

Answer:

Black and pink!! :D

Mostly pink though :3

Answer:3.38

Step-by-step explanation:

Count, N: 5

Sum, Σx: 18

Mean, μ: 3.6

Variance, σ2:  11.44

Steps

(10 - 3.6)2 + ... + (2 - 3.6)2

5

=  

57.2

5

=  11.44

σ =  √11.44

=  3.38

Answer:

B

Step-by-step explanation:

Answer:

13.38

Step-by-step explanation:

Mark as Brainliest

Answer:13.3829787234

Dividing decimals are the same as dividing whole numbers.

for this one I divided it and got 13.3829787234.

Answer:

33.3%

Step-by-step explanation:

6/10 x 5/9 which equals 1/3 when simplified, or 33.3%