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boyakko [2]
3 years ago
7

Plz help with this problem I need to find the length of CB???

Mathematics
2 answers:
miss Akunina [59]3 years ago
5 0
tan(30)=0.57735026919 \\ 0.57735026919=  \frac{x}{20}
Multiply by 20 on both sides
0.57735026919*20= \frac{x}{20} *20 \\ 11.5470053838=x \\ 11.5=x
and x = side CA
Next you now know the hypotenuse of the other "triangle"
It's Adjacent and hypotenuse
So that's cos
cos(60)= \frac{x}{11.5} \\ 0.5= \frac{x}{11.5}
multiply by 11.5 on both sides
0.5*11.5= \frac{x}{11.5} * 11.5 \\ 5.75 = x
x= side CB
CB=5.75m
dezoksy [38]3 years ago
4 0
CB is equal to 10m  you can tell this bye the side DC being 20 m and the angle of DC is half of CB so that means that CB has to be 10 m
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My friend elentire has either less than 15 totts or more than 23 totts. Graph the compound inequality
Fynjy0 [20]

Answer:

15 > x < 23

Step-by-step explanation:

If "x" is totts, then they have either 15 > x or x < 23, when you combine them, you put them in that order

15 > x x < 23

15 > x < 23

Best of luck!

3 0
3 years ago
F=P(1+r)^t solve for p
icang [17]

Answer:

the answer is P= F/(1+r)^t

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

4 0
2 years ago
6(1 + 3R) = 2(10R - 9) -4R
Damm [24]

Answer:

R=-12

Step-by-step explanation:

6(1 + 3R) = 2(10R - 9) -4R

Distribute 6 through the parentheses

6+18R=2(10R-9)-4R

Distribute 2 through the parentheses

6+18R=20R-18-4R

Collect like terms

6+18R=16R-18

Move the variable to the left-hand side and change its sign

6+18R-16R=-18

Move the constant to the right-hand side and change its sign

18R-16R=-18-6

Collect like terms

2R=-18-6

Calculate the difference

2R=-24

Divide both sides of the equation by 2

R=-12

if you'd make me brainliest that'd be great, if not its ok as well! I hope this helped!!!

5 0
3 years ago
On the photo /picture
asambeis [7]

We need to compute the diagonal of yhe square.

d²=7²+7²=49×2cm²

d=7×sqrt(2)=7×1.41=9.87cm.

The diagonal we just computed is the diameter of the circle that contains the square.

Since d=9.87 < 11, then indeed, the square fits inside the circle, without touching it.

6 0
3 years ago
The perimeter of a square can represent by 16x + 24. Willa wants to write an equivalent expression for the perimeter that shows
Maslowich
The diagram shows that all the sides of the rectangle are congruent. Since the perimeter all of the sides added up, all you have to do is divide the perimeter by 4.

Therefore, the perimeter, which is 16x + 24, can be divided by 4 to find the length of one side. 

16x + 24/4 = length of one side. So, the length of one side is 4x + 6.

Hope this helped!
6 0
3 years ago
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