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Alex_Xolod [135]

3 years ago

13

Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?

2 answers:

fomenos3 years ago

5 0

Answer:

A on Edge

Step-by-step explanation:

Andrej [43]3 years ago

3 0

<span>The general equation of a quadratic is expressed as y = ax^2+bx+c. To convert the general equation to vertex form, we need to obtain this form:

(y- k)= a(x - h)^2

This could be done by using completing the square method.

</span><span>y = –3x^2 – 12x – 2
</span><span>y + 2 = –3(x^2 + 4x)
</span>y + 2 -12 <span>= –3(x^2 + 4x + 4)
</span>y - 10 = -3(x+2)^2

Therefore, the answer is the first option.

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Natalka [10]

Write a real-life situation that can be modeled by the expression 1/4 x 2/3.

7 0

2 years ago

A company that packages salted and unsalted mixed nuts received a complaint that claimed that the company’s salted packages cont

Eduardwww [97]

Answer:

$H_0 : \mu_1 - \mu_2 = 0$

$H_a : \mu_1 - \mu_2 \ne 0$

Step-by-step explanation:

Let the salted package be represented with 1 and the unsalted, 2.

So:

$\mu_1:$ Mean of salted package

$\mu_2:$ Mean of unsalted package

Considering the given options, the null hypothesis is that which contains =.

So, the null hypothesis is:

$H_0 : \mu_1 - \mu_2 = 0$

The opposite of = is $\ne$ . So, the alternate hypothesis, is that which contains $\ne$

So, the alternate hypothesis is:

$H_a : \mu_1 - \mu_2 \ne 0$

4 0

2 years ago

The diameter of a semicircle is 2 kilometers. What is the semicircle's perimeter? Use 3.14 for . 50 POINTS OR WHOEVER CAN HELP

Nina [5.8K]

Answer:

12.57 km

happy to help

please mark brainliest

5 0

3 years ago

I need help with number 4

krek1111 [17]

If I'm correct you, add the two prices together, getting the price of $429.99

6 0

3 years ago

What is the slope of the graph?

Dennis_Churaev [7]

Answer:

-4

Step-by-step explanation:

Slope can be found with $\frac{y2-y1}{x2-x1}$

Pick two points on the graph that the line runs through

(-2, 4) will fill the values of x1 and y1, and (-1, 0) will fill the values of x2 and y2

Insert the coordinates into the formula

$\frac{0-4}{(-1)-(-2)}$

$\frac{-4}{-1+2}$

$\frac{-4}{1}$

Therefore the slope is -4

3 0

2 years ago