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lisov135 [29]
3 years ago
13

True painful question. If you get it right, automatic brainliest. 5 stars and thanks for ALL, even for comments. I am sorry for

spamming Khan Academy questions...

Mathematics
1 answer:
Over [174]3 years ago
6 0

Answer:

31.4/3.14=10

10/2=5

5 x 5 = 25

25 x 3.14 = 78.5

78.5 is the correct answer

Step-by-step explanation:

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Evaluate the response...
Kruka [31]

Answer:

um 18 lol

Step-by-step explanation:

Please mark brainliest

4 0
3 years ago
Read 2 more answers
In the right triangle shown, <B=60° and AB=18. How long is AC?​
Naily [24]

Answer:

18√3

Step-by-step explanation:

tan Ф = opposite/adjacent

tanФ = AB/AC

tan 60 = AC/AB

Tan 60 =√3 AB=18

√3=AC/18

AC=18√3

6 0
3 years ago
A fisherman uses a spring scale to weigh a tilapia fish. He records the fish weight as a kilograms and notices that the spring s
belka [17]

Answer:

k = \frac{980a}{b}

Step-by-step explanation:

Fisherman noticed a stretch in the spring = 'b' centimetres

Weight of the fish = a kilograms

If force applied on a spring scale makes a stretch in the spring then Hook's law for the force applied is,

F = kΔx

Where k = spring constant

Δx = stretch in the spring

F = weight applied

F = mg

Here 'm' = mass of the fish

g = gravitational constant

F = a(9.8)

  = 9.8a

Δx = b centimetres = 0.01b meters

Therefore, 9.8a = k(0.01b)

k = \frac{9.8a}{0.01b}

k = \frac{980a}{b}

Therefore, spring constant of the spring will be determined by the expression, k = \frac{980a}{b}

4 0
3 years ago
I WILL AWARD BRAINLIEST!! PLEASE HELP!!!<br> Find the areas of the trapezoids.
Galina-37 [17]

Answer:

A = 12 units ^2

Step-by-step explanation:

The area of the trapezoid is found by

A = 1/2 (b1+b2)h

b1 = 2

b2 = 4

h = 4

I found these by looking at the graph

A = 1/2(2+4) 4

A = 1/2(6*4)

A = 12 units ^2

8 0
3 years ago
Write a system of equations and solve.
Scrat [10]
This looks a lot like a problem previously posted and already worked.
brainly.com/question/8829608
7 0
3 years ago
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