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dimulka [17.4K]
3 years ago
11

Find the length of AC round to the nearest hundred

Mathematics
1 answer:
Nataly [62]3 years ago
7 0

Answer:

Option B. 9.11

Step-by-step explanation:

To find the length of line AB, we must first of all calculate the value of θ as shown in the attached photo.

The value of θ can be obtained as follow:

θ + 39° + 120° = 180° (sum of angles in a triangle)

θ + 159° = 180°

Collect like terms

θ = 180° – 159°

θ = 21°

Thus, we can obtain the length of line AB by using sine rule as illustrated below:

b/Sine B = c/Sine C

b = 16

Angle B = 39°

Sine C = 21°

c =?

b/Sine B = c/Sine C

16/Sine 39° = c/Sine 21°

Cross multiply

c × Sine 39° = 16 × Sine 21°

Divide both side by Sine 39°

c = (16 × Sine 21°) / Sine 39°

c = 9.11

Therefore, the length of line AB is 9.11

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Teenagers were asked what type of book they prefer to read. There were 18 teenagers who prefer e-books and 7 teenagers who prefe
horrorfan [7]

Answer:

Yes Anne is correct!

Step-by-step explanation:

18 + 7 = 25.

18 divided by 25 will give us the percentage of how many teens prefers e-books...

18 divided by 25 is 0.72 which is the same as 72%

Hope this helps!!

7 0
2 years ago
Read 2 more answers
URGENT. WILL GIVE BRAINLIEST.
galben [10]

Answer:

A. Miguel has the greatest spread.

B. Considering the middle 50% of the training time, the person with the least spread is Adam.

C. Miguel is inconsistent with the time set for training compared to that of Adam.

Step-by-step explanation:

The spread of a data shows the range of the data.

Using the range to determine the spread of the given data:

A. The range of the two persons can be determined by:

          Range = highest value - lowest value

So that:

Adam's range = 106 - 91

                      = 15

Miguel's range = 105 - 86

                        = 19

Comparing the range of the two, Miguel has the greatest spread.

B. Considering the middle 50% of the training time;

Adam - 103 105 104 106 100

Miguel - 88 86 89 93 105

Adam's 50% range = 106 - 100

                               = 6

Miguel's 50% range = 105 - 86

                                 = 19

Considering the middle 50% of the training time, the person with the least spread is Adam.

C. The answers to parts 2(a) and 2(b) shows that; there is a wide variation (much inconsistency) in the time that Miguel spend during training, but a minimum variation in the time spent by Adam during training.

8 0
3 years ago
36a^2+24b^2=12( +2b^2)
vlabodo [156]
The blank space is found by dividing 36a^2 by 12, which is equal to 3a^2
To get to this answer you need to
1. divide the both sides of the equation by 12.
2. subtract 2b^2 from both sides. 
You will see that the blank space equals 3a<span>^2 then</span>
7 0
2 years ago
A=1/2h(B+b); a=6,b=2, b=1<br><br> What is h
alexdok [17]
A=(1/2)(h)(B+b)
(6)=(1/2)(h)((2)+(1))
12=h(3)
h=4

Answer: h=4
3 0
3 years ago
What is the value of 3 to the power 2 over 3 to the power 4? A. 1 over 81 B. 1 over 27 C. 1 over 9 D. 1 over 3
rodikova [14]
One way you could solve this is to just multiply the top and bottom out so that you get 9/81, reducing it by 9/9 to get 1/9 or option C.
Another way would be to do 3^{(2-4)} since dividing numbers with exponents would be subtracting the bottom exponent from the top exponent, provided that the base number (in this case 3) is the same for both. For this method, you would get 3^{-2}, which is equal to 1/9 or .1 repeating, the same answer that you'd get with the first method.
6 0
3 years ago
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