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Musya8 [376]
3 years ago
7

Amad was curious if triangles \triangle ABC△ABCtriangle, A, B, C, and \triangle EDF△EDFtriangle, E, D, F were congruent. He was

able to map one figure onto the other using a reflection and a rotation. Amad concluded: "I was able to map \triangle ABC△ABCtriangle, A, B, C onto \triangle EDF△EDFtriangle, E, D, F using a sequence of rigid transformations, so the figures are congruent."

Mathematics
1 answer:
11111nata11111 [884]3 years ago
3 0

Answer:

There is no error, Amad is correct.

Step-by-step explanation:

Khan Academy Checked.

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A washer and a dryer cost $857 combined. The washer costs $93 less than the dryer. What is the cost of the dryer?
Lelechka [254]

Answer:

Dryer cost $475;  Washer cost $382

Step-by-step explanation:

For this problem, we will simply set up a system of equations to find the value of each the washer (variable x) and the dryer (variable y).

We are given the washer and dryer cost $857 together.

x + y = 857

We are also given that the washer cost $93 less than the dryer.

x = y - 93

So to find the cost of the dryer, we simply need to find the value of y.

x + y = 857

x = y - 93

( y - 93 ) + y = 857

2y - 93 = 857

2y = 950

y = 475

So now we have the value of the dry to be $475.  We can check this by simply plugging in the value and see if it makes sense.

x + y = 857

x + 475 = 857

x = 382

And check this value:

x = y - 93

382 ?= 475 - 93

382 == 382

Therefore, we have found the values of both the washer and the dryer.

Cheers.

6 0
4 years ago
Simplify the following expressions 12x^3/25×40/9x^2​
Archy [21]

Answer: 27x^5/250

Step-by-step explanation:

I assume that's a fraction on a fraction.

12x^3/25×40/9x^2 = (12x^3 × 9x^2)/1000

= 108x^5/100

= 27x^5/250

3 0
3 years ago
CHECK Mynicknameisnickname THEY HAVE THIS QUESTION FOR 100 POINTS FOR THE FIRST CORRECT PERSON HURRY!!
mars1129 [50]
Let "c" and "q" represent the numbers of bottles of Classic and Quantum that should be produced each day to maximize profit. The problem conditions give rise to 3 inequalities:
.. 0.500c +0.550q ≤ 100 . . . . . . . liters of water
.. 0.600c +0.200q ≤ 100 . . . . . . . kg of sugar
.. 0.1c +0.2q ≤ 32 . . . . . . . . . . . . . grams of caramel
These can be plotted on a graph to find the feasible region where c and q satisfy all constraints. You find that the caramel constraint does not come into play. The graph below has c plotted on the horizontal axis and q plotted on the vertical axis.

Optimum production occurs near c = 152.17 and q = 43.48. Examination of profit figures for solutions near those values reveals the best result for (c, q) = (153, 41). Those levels of production give a profit of 6899p per day.


To maximize profit, Cartesian Cola should produce each day
.. 153 bottles of Classic
.. 41 bottles of Quantum per day.

Profit will be 6899p per day.


_____
The problem statement gives no clue as to the currency equivalent of 100p.

5 0
3 years ago
What is another way to write 15 minutes before 9?
dimulka [17.4K]

Answer:

8:45

9:00 - 0:15 = 8:45

4 0
3 years ago
What is polynomials??? ​
mamaluj [8]

Answer:

Polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

3 0
3 years ago
Read 2 more answers
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