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2 years ago

5

The number of dogs a family has and the amount of floor cleaner used are known to have a strong positive association. Jaylen con

cluded that the number of dogs causes an increase in floor cleaner usage. Is Jaylen's conclusion valid? Explain.

1 answer:

Leviafan [203]2 years ago

6 0

The answer it is valid

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Find the discriminant for the following equation 3x^2+4x=2

hichkok12 [17]

Answer:

The discriminant is 40

Step-by-step explanation:

First, rewrite the equation as $3x^2+4x-2=0$ so that the equation is in the form of $ax^2+bx+c=0$ . Thus, the discriminant is $b^2-4ac=(4)^2-4(3)(-2)=16+24=40$ . This tells us that since the discriminant is greater than 0, then there are 2 real solutions.

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2 years ago

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2 + 2 =? i need help

OLga [1]

Answer:

4

Step-by-step explanation:

Think of it this way. You have 2 sets of 2.

I I (This represents two)

I I (This represents the other two)

When you combine these, you get:

I I I I

If you count the tally marks, your answer is 4.

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3 years ago

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Simplify the expression 3x(x – 12x) + 3x2 – 2(x – 2)2. Which statements are true about the process and simplified product? Check

Kisachek [45]

<h3>1. The term $-2(x-2)^2$ is simplified by first squaring the expression (x – 2). </h3><h3>TRUE </h3><h3>2. The simplified product is a binomial. TRUE</h3><h3>3. After multiplying, the like terms are combined by adding and subtracting.</h3><h3>TRUE </h3><h3>4. The parentheses are eliminated through multiplication. TRUE</h3><h3>5. The final simplified product is $-28x^2 + 8x - 8$ FALSE</h3>

Step-by-step explanation:

Here, the given expression is :

$F(x) = 3x(x- 12x) + 3x^2-2(x-2)^2$

Now, let us first solve the given expression step wise:

$F(x) = 3x(x-12x) +3x^2 -2(x-2)^2\\= 3x(-11x) +3x^2 -2(x^2 +4 -4x)\\= -33x^2 + 3x^2 -2x^2 -8+8x\\= -32x^2 +8x - 8\\\implies F(x) = -32x^2 +8x - 8$

Now, here the given statements are:

1. The term $-2(x-2)^2$ is simplified by first squaring the expression (x – 2).

TRUE

2. The simplified product is a binomial. TRUE

3. After multiplying, the like terms are combined by adding and subtracting.

TRUE

4. The parentheses are eliminated through multiplication. TRUE

5. The final simplified product is $-28x^2 + 8x - 8$ FALSE

As the simplified expression is: $(-32x^2 +8x -8)$

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3 years ago

A face of a solid is

gtnhenbr [62]

Answer:

The Second Answer , <em><u>a </u></em><em><u>pattern </u></em><em><u>of </u></em><em><u>two-dimensional </u></em><em><u>shapes </u></em><em><u>that </u></em><em><u>can </u></em><em><u>be </u></em><em><u>folded </u></em><em><u>to </u></em><em><u>form </u></em><em><u>a </u></em><em><u>solid </u></em><em><u>figure </u></em><em><u>.</u></em><em><u> </u></em>

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1 year ago

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10. Mark ran 3 miles everyday for 2 weeks. How far did mark run in all?

Alexxandr [17]

14 days = 2 weeks so

14 times 3 = 42

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3 years ago

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