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Mars2501 [29]
3 years ago
15

Show that angle a is equal to 90 degree​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0
Angle a is a right angle and all right angles equal 90°
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A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an
NeX [460]

Answer:

6400\ \text{N}

Step-by-step explanation:

\dfrac{m}{t} = Mass flow rate of water = 320 kg/s

m = Mass of water on the door

t = Time

v = Velocity of water on the door = 20 m/s

Force is given by

F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}

The average force is exerted by the stream of water is 6400\ \text{N}.

3 0
3 years ago
WILL GIVE BRAINLIEST!!!
torisob [31]
Answer:
A = $2,240.00

(I = A - P = $240.00)

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year.

Solving our equation:
A = 2000(1 + (0.03 × 4)) = 2240 
A = $2,240.00

The total amount accrued, principal plus interest, from simple interest on a principal of $2,000.00 at a rate of 3% per year for 4 years is $2,240.00.
8 0
3 years ago
Read 2 more answers
PLEASE HELPPPP MEEE, PLEASE ANSWER ALL OF THE QUESTIONS!!!!!
Sophie [7]

Answer:

What question?

Step-by-step explanation:

I don't see a question do you?

5 0
2 years ago
Read 2 more answers
What is 5/2 x 9/4 as a mixed fraction?
Nataliya [291]

Answer:

5 5/8

Hope this helps! :)

3 0
3 years ago
Is y=3x+2y a function
Anarel [89]

Answer:

it is a function.

Step-by-step explanation:

y=3x+2y

-2y -2y

-y/-=3x/-

y=-3x

linear function

y=x

5 0
3 years ago
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