All categories

4 years ago

Please HELP LAST QUIZ FOR SEMESTER NEED TO PASS

Mathematics

2 answers:

Varvara68 [4.7K]4 years ago

7 0

Hope this helps you.

Inessa05 [86]4 years ago

6 0

You want to complete the square for this question.
However, we can tell that this equation is a perfect square, because by looking at the form: ax^2+bx+c, b is double the square root of c and c is a perfect square.
Therefore, the equation can be rewritten as y=(x-3)^2. Since there is no translation in the y direction (looking at the general equation y=a(x+d)^2+e, e represents a translation in the y direction), the vertex would neither be above or below, but on the x-axis. The point of the vertex is (3,0) from this equation, and therefore the answer is A. It is not on the y axis because the parabola has a translation in the x direction (as represented by the x-3, which means it has been translated 3 units to the right).

You might be interested in

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe

Arlecino [84]

Answer:

P(4) =p(x=4) = 0.205078

Step-by-step explanation:

Explanation:-

The probability of x successes in the n independent trials of the experiment.

Given n=10, p=0.5,

By using Binomial distribution

$P(X =x) = n_{C_{x} } p^{x} q^{n-x}$

Given the p = 0.5

q=1-p =1-0.5=0.5

$P(X =4) = 10_{C_{4} } (0.5)^{4} (0.5)^{10-4}$

we will use formula

$n_{C_{r} } = \frac{n!}{(n-r)!r!}$

$10_{C_{4} } = \frac{10!}{(10-4)!4!}=\frac{10X9X8X7X6!}{6!4!} =\frac{10X9X8X7}{4X3X2X1} =210$

$P(X =4) = 210 (0.5)^{4} (0.5)^{10-4}$

$P(X =4) = 210 (0.5)^{4} (0.5)^{6}$

on calculation, we get

P(X=4) = 0.205078

3 0

3 years ago

X = y - 3

forsale [732]

To solve this system of equations, start by plugging your equation for x wherever x appears in your second equation, giving you (y-3)+3y=13. Now, combine like terms, (y-3)+3y=13 => 4y-3=13, solve for y by adding 3, 4y-3=12 => 4y=16, divide by 4, 4y=16 => y=4. Now that you have your y value, plug it into the equation for x to get the x value, x=y-3=4-3=1. This makes your solution (1,4), answer choice A

4 0

3 years ago

Find f(g(2)) simplify completely f(x)= 6x+9 g(x)=3x

Inessa05 [86]

Answer:

Explanation:

Given:

f(x)= 6x+9

g(x)=3x

Go from right to left in such function questions

⇒ f(g(2))

⇒ f(3(2))

⇒ f(6)

⇒ 6(6) +9

⇒ 36 + 9

⇒ 45

7 0

2 years ago

Read 2 more answers

Look at picture and solve

Aleks04 [339]

Step-by-step explanation:

As we can see, the line on the bottom is a perfectly straight 180º line, so the two angles, a and 50º are supplementary angles. Remember: Supplementary angles = 180º, and complementary angles = 90º.

Since this is a 180º line, all we have to do is to subtract 50 from 180 to get our angle a.

180-50 = 130º

Our answer: a = 130º

3 0

3 years ago

Which of the following illustrates the truth value of the given statements? a plane has at least three noncollinear points, and

Marysya12 [62]

I think it's the first choice. T and F = F. hope this helps :D

7 0

4 years ago

Read 2 more answers