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ohaa [14]
3 years ago
9

For people who have taken PreCalc/Calc:

Mathematics
2 answers:
Vlada [557]3 years ago
8 0

Answer:

cant see the picture

Step-by-step explanation:

V125BC [204]3 years ago
5 0
The picture won’t load it’s just gray so I can’t help you
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Find each sum.<br> 1. 56+ (-56)
Juliette [100K]

Find each sum.

1.  56+ (-56) = 0

The number series 1, 2, 3, 4, 55, 56. Therefore, 1596 is the sum of positive integers.

5 0
3 years ago
Label each of the triangles illustrated below
AVprozaik [17]
A: Equilateral
B: Obtuse
C: Obtuse
D: Right
E: Obtuse
F: Acute
8 0
3 years ago
A motor boat travels 60 miles down a river in three hours but takes five hours to return upstream. Find the rate of the boat in
Kryger [21]

Answer:

  • boat: 16 mph
  • current: 4 mph

Step-by-step explanation:

  speed = distance / time

The rate downriver is (60 mi)/(3 h) = 20 mi/h.

The rate upriver is (60 mi)/(5 h) = 12 mi/h.

The rate of the boat in still water is the average of these:

  (20 +12)/2 mi/h = 16 mi/h

The rate of the current is the difference between the boat speed and actual speed:

  16 mi/h - 12 mi/h = 4 mi/h

3 0
3 years ago
The first three steps in determining the solution set of the system of equations algebraically are shown in the table. y = −x2 +
lianna [129]
You have a system of equations \left \{ {{y = -x^2+2x-9} \atop {y =-6x+6}} \right..

1. Substitude right side of second equation into the left side of the first equation: -6x+6=-x^2+2x-9.

2. Solve this equation:
 x^2-2x+9-6x+6=0, \\ x^2-8x+15=0, \\ D=(-8)^2-4\cdot 1\cdot 15=64-60=4,  \\ \sqrt{D}=2,  \\ x_{1,2}=\dfrac{8\pm 2}{2  } =3,5.

3. Find y:
for x_1=3, y_1=-6\cdot 3+6=-18+6=-12,
for x_2=5, y_2=-6\cdot 5+6=-30+6=-24.

4. The solutions of the system are: (3,-12) and (5,-24).
Answer: Correct choice is A.


7 0
3 years ago
Read 2 more answers
4.5 miles equal like how many yds???? Pls helpppp
r-ruslan [8.4K]

Answer:

7920 yards

Step-by-step explanation:

just use a calculator next time. Do miles to yards converter in  :)

8 0
3 years ago
Read 2 more answers
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