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larisa86 [58]
3 years ago
7

Please help with 17, 19, and 21 using trigonometry. Thanks!​

Mathematics
1 answer:
omeli [17]3 years ago
7 0
I honestly don’t know. But the square in the bottom of the triangles indicate that it is a right triangle equaling 90 degrees. You can try using that along with other knowledge of right triangles you have. Could you possibly use Pythagorean theorem also?
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Not the best at this! Can someone please help me ?!
umka2103 [35]

Answer:

1= 2x+11

2= is none of those

3= √x^2 –11

4= √2x+11

Step-by-step explanation:

5 0
2 years ago
What is the domain? I think it’s (-4,-3)
Olin [163]

Answer:

all real numbers

Step-by-step explanation:

As the graph goes up, it keeps going up and to the right. There is nothing telling us it will stop moving to the right at a certain point. It goes up much faster than it goes right, but it keeps going right and up forever. That makes the domain reach positive infinity. The same happens on the left side. As it goes down to the left, it keeps going left forever to negative infinity. That makes the domain all real numbers from negative infinity to positive infinity.

Domain: all real numbers

4 0
3 years ago
Read 2 more answers
-1.2<br> 29<br> 20<br> Enter the answer as an exact decimal or simplified fraction
Rudiy27

Answer:

ohh

Step-by-step explanation:

6 0
3 years ago
The geometric sequence that tells the perimeter of each stage in the building of Koch's snowflake has a first term of 3 and a ra
kari74 [83]
An = a1 * r^(n-1)
n = term to find = 18
a1 = first term = 3
r = common ratio = 4/3
now we sub

a18 = 3 * 4/3^(18 - 1)
a18 = 3 * 4/3^17
a18 = 3 * 133
a18 = 399
4 0
3 years ago
The average weight of a medium size egg is found to be 3.2 oz, with a standard deviation of 0.13 oz. What is the heaviest egg (t
Over [174]

Answer:

We are 95% confident that the average weight of the heaviest egg that is still medium size is 3.52 oz

Step-by-step explanation:

Mean = 3.2 oz, sd = 0.13 oz

Assuming there are 3 heavy eggs, n= 3, degree of freedom = n-1 = 3-1 = 2, t-value corresponding to 2 degrees of freedom and 95% confidence level is 4.303

Error margin = t×sd/√n = 4.303×0.13/√3 = 0.32 oz

Upper limit (heaviest egg that is still medium size) = mean + error margin = 3.2 + 0.32 = 3.52 oz

3 0
3 years ago
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