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3 years ago

Select the correct answer. What are the solutions of this quadratic equation? -3x2 + 1 = 3x − 2

Mathematics

1 answer:

lara31 [8.8K]3 years ago

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Answer: Answer:

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Step-by-step explanation:

Let's solve your equation step-by-step.

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Step 1: Subtract 3x-2 from both sides.

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Step 2: Use quadratic formula with a=-3, b=-3, c=3.

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How do I answer this question

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4 years ago

What is 6(4p - 2) + 2 (5p + 2)

Brrunno [24]

Answer:

34p -8

Step-by-step explanation:

6 (4p- 2) + 2 (5p + 2)

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4 0

3 years ago

Tell whether this function is quadratic. {(10, 50), (11, 71), (12, 94), (13, 119), (14, 146)} .

irga5000 [103]

When we have consecutive values, f(10), f(11), f(12), f(13), f(14), we can make a difference table to determine the degree of f as a polynomial. A quadratic will have a constant second difference:

x 10 11 12 13 14

f(x) 50 71 94 119 146

1st diff 21 23 25 27

2nd diff 2 2 2

We got a constant second difference, so f is a polynomial of degree two.

Answer: This function is quadratic

6 0

4 years ago

6) A demand curve for a product is the number of items the consumer will buy at different prices. At a price of $2 a store can s

ExtremeBDS [4]

Given :

When price is $2 dollars he sells 2400 units .

When price is $8 dollars he sells 600 units .

To Find :

If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.

Solution :

Two points are given :

$(x_1,y_1)=(2,2400)$

$(x_2,y_2)=(8,600)$

Now , slope is given by :

$m=\dfrac{y_2-y_1}{x_2-x_1}\\\\m=\dfrac{2400-600}{2-8}\\\\m=\dfrac{-1800}{6}\\\\m=-300$

Now , the equation of line containing these two points and slope -300 is :

$(y-y_1)=m(x-x_1)\\\\y-600=-300(x-8)\\\\y=-300x+2400+600\\\\y=-300x+3000$

Therefore , equation for the demand curve is $y = -300x +3000$ .

Hence , this is the required solution .

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3 years ago

- (A) The following data was received from the Student Affairs Unit of the University

ladessa [460]

Answer: i) 30 students for chemistry

ii) 21 students for only one subject

iii) 61 students

Step-by-step explanation: from the question we got 30 students registered for chemistry. number students only for biology = (27-18) = 9

number of students only for chemistry = (30-18) = 12

number of student registered for only one subject = (12+9)= 21

number of students registered for neither two subjects = {100-(9+12+18)} = 61

5 0

4 years ago