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dem82 [27]
3 years ago
6

Help ASAP!!!!!!!!!!!!!!!

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

P=3T-50

Step-by-step explanation:

Form the given four values we can assume a linear relationship between profit and the no of tickets sold.

Let the equation corresponding to that be some P=aT+b.

Now substitute the first set of values(100,50) in the above equation we get

100=50a+b.

Now substituting second set of values (100,250) we get 250=100a+b.

Let these equations be eq1 and eq2.

Now substract eq1 from eq2 we get 50a=150 or a=3.

Substitite value of a in one of the equations we get b=-50.

∴P=3T-50

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F(x)=-4x^2+9 Find f(−3)
pochemuha

Answer:

f (-3) = 45

Step-by-step explanation:

f (x) =

4x {}^{2}  + 9

f (-3) =

(4 \times  - 3 \times  - 3) + 9

=》

36 + 9

=》

45

8 0
3 years ago
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3 years ago
The rectangular floor of a classroom is 20 feet in length and 36 feet in width. A scale
vova2212 [387]

Answer:

56

Step-by-step explanation:

20 feet =10 inchs

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5 0
2 years ago
Read 2 more answers
Are these figures are similar? If so, what is the scale factor?
tester [92]

Answer:

Yes, the scale factor is 0.6 repeating, or 0.7.

Step-by-step explanation:

You find the scale factor by dividing the smaller sides by the corresponding larger ones.

12/18 = 0.6 repeating

14/21 = 0.6 repeating

16/24 = 0.6 repeating

These triangles could be similar by SSS or SAS or ASA I think since congruent angles are shown in both triangles as well.

8 0
3 years ago
A circle whose center is the origin passes through the point (-5,12). Which point also lies on this circle?
schepotkina [342]
The answer is B(11, 2sqrt(12) )
proof

the main equation of the circle is   (x-x1)²+(y-y1)²=R²
where C(x1, y1) is the center 
so if the center is the origin, it is O(0,0), and the equation becomes
<span>  (x)²+(y)²=R²
</span>and the circle passes through the point (-5,2) so we can write 
(-5)²+12²=R², it implies R= sqrt(25+144)=sqrt(169)=13

and  for <span>B(11, 2sqrt(12) )     </span>11²+  (2sqrt(12))²= 121 + 48= 169= 13
it is checked.
3 0
3 years ago
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