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tekilochka [14]
3 years ago
14

Triangle ABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C? A. 9/41 B. 40/9 C. 40

/41 D. 9/40
Mathematics
2 answers:
seraphim [82]3 years ago
5 0
The answer is letter C which is 40/41. If you draw a triangle the sides found in the cos C is BC which is equal to 40 and the CA which is equal to 41 or the 40/41. It can not be the AB since it is in the opposite side of the cos C. 
galina1969 [7]3 years ago
4 0
It's a <span>rectangular triangle because:

9² + 40² = 41²
81 + 1600 = 1681
1681 = 1681

Answer: C. cos∡C = 40/41
</span>
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PLEASE HURRY IT'S URGENT!!!!!
kramer

Answer:

none of those answers are right, because the base of the triangle at 7/24 ft (or 0.29 ft) is smaller than the height 1/3 ft (or 0.33 ft)

Step-by-step explanation:

7/24 - 1/3 =

7/24 - 8/24 = -1/24

5 0
3 years ago
Read 2 more answers
3w + 7=8 need help with this
LiRa [457]
Hope this helps you out 3w+7=8

The answer is w= 1/3

Step by step:

3w+7=8
Step 1: is subtract is 7 from both sides.
3w+7-7=8-7
3w=1

Step 2: Divide both sides by 3.
3w/3 = 1/3

Your solution is:

w=1/3
6 0
3 years ago
Solve 36x^2-22x=14x-9
frutty [35]

x=1/2


i hate the minimum word count

no one comes on here to learn how to do it, we come on here to get answers


4 0
3 years ago
A bricklayer is able to set 2.5 bricks in one minute. How many bricks can he set in 8 hours?
pochemuha

Given:

A bricklayer is able to set 2.5 bricks in one minute.

Required:

To find the number of bricks can he set in 8 hours.

Explanation:

8 hours =480 minutes.

2.5 bricks in one minute.

So for 480 minutes,

\begin{gathered} =2.5\times480 \\  \\ =1200 \end{gathered}

Final Answer:

1,200 bricks can he set in 8 hours.

5 0
1 year ago
Adding and Subtracting Complex Numbers.<br><br> Add.<br><br> (-3+3i)+(-6+6i)
Arisa [49]
<span>(-3 + 3i) + (-6 + 6i) =

= -3 + 3i + (-6) + 6i

= 3i + 6i + (-3) + (-6)

= 9i + (-9)

= 9i - 9
</span>
4 0
3 years ago
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