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kirill [66]
3 years ago
5

What is the value of sin 15

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
8 0

Answer: sin 15^(degree) = (√3−1)/2√2

Step-by-step explanation:

Lena [83]3 years ago
4 0

Answer:

sin(15 radians) is 0.65028784015

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help help help got math math
Vesnalui [34]

Answer:

>

Step-by-step explanation:

This is the greater than symbol. Think of it like an alligator mouth that wants to eat the larger number. 3.2 is larger than -99.

6 0
2 years ago
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Joey Chestnut is trying to break his own world record for eating the most hot dogs and buns in 10 minutes. He needs to eat more
larisa [96]
One inequality would be 9d + 10 > 72
4 0
3 years ago
The equation of a circle is x2 − 4x + y2 + 8y − 29 = 0. what are the center and radius of the circle? enter your answers in the
uranmaximum [27]
\text{The standard form of the circle:}\\\\(x-h)^2+(y-k)^2=r^2\\\\\text{h and k are the x and y coordinates of the circle}

\text{We have}\\\\x^2-4x+y^2+8y-29=0\\\\\text{use:(*)}(a\pm b)^2=a^2\pm2ab+b^2
x^2-2x\cdot2+y^2+2y\cdot4=29\ \ \ |+2^2\ \ |+4^2\\\\\underbrace{x^2-2x\cdot2+2^2}_{(*)}+\underbrace{y^2+2y\cdot4+4^2}_{(*)}=29+2^2+4^2\\\\(x-2)^2+(y+4)^2=49
\text{Answer: the center (2;-4), the radius}\ r=\sqrt{49}=7
3 0
3 years ago
Colby and Danielle clean pools for extra money over the summer. Colby's income is determined by f(x) = 3x + 12, where x is the n
Nina [5.8K]
H(x) = 3x + 12 + 5x + 10
h(x) = 8x + 22

in 4 hrs Colby can make: 3(4)+12 = 24$
in 4 hrs Dan can make: 5(4)+10 = 30$
together they make 22+30=52$ in 4hrs
if split equally that's 52/2=26$ a piece
yes, Colby doesn't make as much money so he will benefit from teaming up with Dan.
6 0
3 years ago
Shureka Washburn has scores of 89 , 65​, 68​, and 88 on her algebra tests. a. Use an inequality to find the scores she must make
PIT_PIT [208]
79. Set up an equation to solve this problem. Suppose she needs at least a score of x points. Her current total scores is 89+65+68+88=310. Her total score will be 310+2x (since final exams counts as two tests). The average score is total points divided by number of tests, and it has be bigger or equal to 78, so (310+2x)/6>=78. We solve it and get x=79. She has to score at least 79 on her final exam in order to jhave an overall average of 78.
7 0
3 years ago
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