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Harlamova29_29 [7]

2 years ago

14

Each girl was given 20 beads to make a bracelet. The line plot above shows how many beads the girls each used of their bracelets

. How many girls chose to put at least half of the beads on their bracelet?
This is timed

1 answer:

kogti [31]2 years ago

4 0

I think it's eight bead's??...........

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36 singers in the choir 5/6 are boys how many of the singers are girls

Aleksandr [31]

Answer:

6

Step-by-step explanation:

5/6 of 30 = ?

5 x

---- = ----

6 36

36 x 5 = 180

180/6 = 30

That means 30 singers are boys.

36 - 30 = 6 (the number of girls)

5 0

3 years ago

Find \tan\left(\frac{17\pi}{12}\right)tan( 12 17π )tangent, left parenthesis, start fraction, 17, pi, divided by, 12, end frac

uranmaximum [27]

One way to do this is to notice

$\dfrac{17\pi}{12}=\dfrac\pi6+\dfrac{5\pi}4$

Then

$\tan\dfrac{17\pi}{12}=\tan\left(\dfrac\pi6+\dfrac{5\pi}4\right)=\dfrac{\tan\frac\pi6+\tan\frac{5\pi}4}{1-\tan\frac\pi6\tan\frac{5\pi}4}$

We have

$\tan\dfrac\pi6=\dfrac{\sin\frac\pi6}{\cos\frac\pi6}=\dfrac{\frac12}{\frac{\sqrt3}2}=\dfrac1{\sqrt3}$

and since $\tan x$ has a period of $\pi$ ,

$\tan\dfrac{5\pi}4=\tan\left(\pi+\dfrac\pi4\right)=\tan\dfrac\pi4=1$

and so

$\tan\dfrac{17\pi}{12}=\dfrac{\frac1{\sqrt3}+1}{1-\frac1{\sqrt3}}=\dfrac{1+\sqrt3}{\sqrt3-1}=2+\sqrt3$

7 0

3 years ago

What is the diameter of the circle? <br> Enter your answer in the box. <br> _____units

wel

Answer:

8 units because the diameter is the side to side length of the circle so when you count it you get 8 units.

5 0

1 year ago

For some integer n, the first, the third and the fifth terms of an arithmetic sequence are respectively 3n, 5n – 6, and 11n + 8.

Mazyrski [523]

Answer:

a₄=8n+1= -39.

Step-by-step explanation:

1) if a₁=3n; a₃=5n-6 and a₅=11n+8, then it is possible to calculate the difference according to 0.5(a₅-a₃)=0.5(a₃-a₁). Then

2) 0.5(11n+8-5n+6)=0.5(5n-6-3n); ⇔ 6n+14=2n-6; ⇔ n= -5.

3) if n=-5, then the 4th term is:

$a_4=\frac{a_5+a_3}{2}; \ = > \ a_4=\frac{11n+8+5n-6}{2}=8n+1;$

or a₄=-39.

8 0

2 years ago

Provider A changes $55 for installation and charges $35.50 per month for the basic package. Provider B offers free installation

Igoryamba

Let n = number of months both have their services

Provider A:

C = 35.50n + 55

Provider B:

B = 35.50n

Provider A will always cost more than

provider B because of the $55 installation fee

3 0

2 years ago