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djyliett [7]
3 years ago
7

The picture below shows a portion of a river dam:

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
8 0
Hello,

If you are starting with the angle of 40 degrees, you have an adjacent side and hypotenuse. Therefore, it is a cosine relationship.

We can write:

cos(40) = adj / hyp
cos(40) = x / 220

To solve for x, simply multiply 220 by the cos(40).
You can write it as:  220 cos(40)

Good luck,
MrEQ

Contact [7]3 years ago
7 0

Answer:

220cos40

Step-by-step explanation:

cos40=x/220

(220)cos40=x/220(220)

220cos40=x

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Three-eighths of the sum of sixteen times a number and twenty-four. How do you set this up?
patriot [66]
If you break it up:

Three-eighths = 3/8

Sixteen times a number, we'll call the unknown number X, so 16X.

Twenty Four = 24

The sum of 16X and 24 = 16X + 24

We want 3/8 of that sum so we put the sum in parenthesis and we get:

Y = 3/8(16X + 24) where Y is the answer youd get if you knew what X was.
7 0
3 years ago
I will give the brainliest answer
GuDViN [60]

Answer:

82 {units}^{2}

Step-by-step

explanation

explanation is attached to the picture

hope this helps

brainliest appreciated

good luck! have a nice day!

3 0
3 years ago
Read 2 more answers
Nara multiplied two whole numbers together to equal a product of 90.
BabaBlast [244]

Answer:

30×3=90 10×9=90 45×2=90 . .

4 0
3 years ago
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When x=8 and y=20 find y when x=42
ella [17]
When x=42 that means it is 8x6 so that means that the y = 120 becuase its 20x6
answer= y=120
7 0
3 years ago
BRIANLY FOR THE BEST EXPLANATION AND ANSWER!
Kryger [21]

Answer:

C ≈ 14.18

Step-by-step explanation:

<u><em>Question Given:</em></u>

A circle has an area of 16mm². Find it's circumference.

<u><em>Formula:</em></u>

C = 2√πA

<u><em>Solve:</em></u>

C = 2√πA

C = 2√(3.14 × 16)

C = 2√50.24

C = 14.1760361173

C ≈ 14.18

<em>Hence, Circumference is approximately 14.18.</em>

<em />

<u>~Kavinsky</u>

8 0
1 year ago
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