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Alchen [17]
3 years ago
7

Pls help ! i need help with all 3 questions quick

Mathematics
1 answer:
Zarrin [17]3 years ago
6 0

Ask your mummy......

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Find the axis of symmetry for this parabola.
Kitty [74]



Find the axis of symmetry for this parabola.

y = 3x2 - 6x - 9

x = -3
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x = 3
x=4

-b/2a=-(-6)/2(3)
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7 0
3 years ago
There are 42 students 21 are in 7th grade 14 are in 8th 7 are in ninth whats the probability of an eighth grader winning
Varvara68 [4.7K]

Answer:

The probability of an eighth grader winning is 1/3

Step-by-step explanation:

Total no. of students = 42

Number of students in 7th grade = 21

Number of students in 8th grade = 14

Number of students in 9th grade = 7

Probability of event = \frac{\text{Favorable outcomes}}{\text{Total outcomes}}

So,the probability of an eighth grader winning= \frac{14}{42}=\frac{2}{6}=\frac{1}{3}

Hence The probability of an eighth grader winning is 1/3

3 0
2 years ago
A car is traveling at a rate of 40 miles per hour. what is this speed in feet per minute?
kifflom [539]
I am pretty sure it is 3520 feet per minute.
3 0
3 years ago
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
2 years ago
A large bag of sand weighs 48.5 pounds a small bag of sand weighs 24.6 pounds if Mrs.Waggoner buys a large bag and A small bag h
Lera25 [3.4K]

Answer: 73.1 pounds of sand.

Step-by-step explanation: 48.5 Pounds (Big Bag) + 24.6 (Small Bag)

48.5+24.6 is equal to 73.1 pounds of sand. That is how much sand was purchased altogether.

3 0
3 years ago
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