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Delvig [45]
3 years ago
15

PLZZZZZZZZZZZZ HELPPPPPPPPPPP ASAPPPPPPPPPP WILL GIVE BRAINIEST!!!!!!!!!!!!!!

Mathematics
2 answers:
Lady_Fox [76]3 years ago
6 0

the answer is r⋅18−3

olganol [36]3 years ago
5 0
The last one I am pretty sure is the correct answer.
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an arc welder provides 250 amps of current when operating with a voltage of 40 volts. what is the power required by this welder
FinnZ [79.3K]
The power(P) of the circuits is the product of the voltage (V) in volts and current(I) in amperes. 
                                        P = IV

Substituting the known values to the equation,
                                     P = (250 amps) x (40 volts) = 10,000 Watts

Thus, the answer is 10,000 Watts. 

3 0
2 years ago
Read 2 more answers
Write the equation of a line that includes the point (22, 12) and
STatiana [176]

Let's start with y = 4x + b (since 4 is the slope);

We need to find what number should be put instead of b;

Then, let's see what needs to be done;

Plug in the y and x values from the coordinate (22,12) into y=4x+b;

12 = 4(22) + b

Solve;

12 = 88 + b

12 - 88 = b

b = -76

Remember the equation y = 4x + b? Put the -76 instead of b:

y = 4x + -76

or: y = 4x - 76

That is the equation.

To make it standard form, put x and y both in the left side, with x first then y:

-4x + y = -76

^^Answer!

7 0
3 years ago
When do you know a decimal is terminating?
Debora [2.8K]
When the end of division is zero.
4 0
3 years ago
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
Todd placed 32 square tiles along the edge of his wooden dining room table, as shown below.
zalisa [80]
It would be 91 centimeters
5 0
3 years ago
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