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1 year ago

Answer the following.

Mathematics

1 answer:

Oksana_A [137]1 year ago

7 0

Answer:

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In a bag of candy, Marsha found that there were 7 red, 8 blue, 5 yellow, and 9 greens pieces of candy. Marsha put all of the pie

son4ous [18]

Answer:

Step-by-step explanation:

1) find the total candies

7 + 8 + 5 + 9 = 29

2) a probability can be expressed with a fraction whose denominator is the total candies, while the numerator represents the candies that we want to find

- red = 7/29

- blue = 8/29

- yellow = 5/29

- green = 9/29

3) compound probability

(red + blue)/29 = 15/29

(yellow + green)/29 = 14/29

(blue + yellow + green)/29 = 22/29

7 0

3 years ago

Which of the following is the standard equation of the ellipse with vertices at (1,0) and (27,0) and an eccentricity of 5/13?

Dovator [93]

The equation of the elipse is given by:

$\frac{(x - 14)^2}{169} + \frac{y^2}{144} = 1$

The equation of an elipse of center $(x_0, y_0)$ is given by:

$\frac{(x - x_0)^2}{a^2} + \frac{(y - y_0)^2}{b^2} = 0$

Values a and b are found according to the <u>vertices and the eccentricity</u>.

It has vertices at (1,0) and (27,0), thus:

$x_0 = \frac{27 + 1}{2} = 14$

$y_0 = \frac{0 + 0}{2} = 0$

$a = \frac{27 - 1}{2} = 13$

$a^2 = 169$

It has eccentricity of $\frac{5}{13}$ , thus:

$\frac{5}{13} = \frac{c}{a}$

$\frac{5}{13} = \frac{c}{13}$

$c = 13$

Thus, b is given according to the following equation:

$c^2 = a^2 - b^2$

$b^2 = a^2 - c^2$

$b^2 = 169 - 25$

$b = \sqrt{144}$

$b = 12$

The equation of the elipse is:

$\frac{(x - 14)^2}{169} + \frac{y^2}{144} = 1$

A similar problem is given at brainly.com/question/21405803

3 0

3 years ago

Help me please I’ll reward you with brainly

Valentin [98]

Answer:

You are correct! It is the answer you have selected in the picture!

Step-by-step explanation:

Hope this helps :)

4x4=16

-4x-4=16 too

5 0

3 years ago

Read 2 more answers

What are the coordinates of the vertex for f(x) = x2 + 4x + 10?

MAVERICK [17]

You have to complete the square to get it into vertex form. Do this by setting the function equal to zero and at the same time moving the constant over to the other side of the equals sign so you have this: $x^{2} +4x=-10$ . Now we can complete the square on the polynomial by taking half the linear term, squaring it, and adding it to both sides. Our linear term is 4. Half of 4 is 2, and 2 squared is 4, so we add 4 to both sides: $( x^{2} +4x+4)=-10+4$ and simplify to get $( x^{2} +4x+4)=-6$ . In this process we have created a perfect square binomial on the left, which happens to be $(x+2) ^{2}=-6$ . Now move the -6 back over by addition to get $(x+2) ^{2} +6=y$ . The vertex is found at (-2, 6), the third choice down.

7 0

3 years ago

Read 2 more answers

Through (2,2) parallel to y=x+4 <br>in slope intercept form.

Tema [17]

Answer:

y = x

Step-by-step explanation:

slope of y=x+4 is 1

parallel means same slope = 1

so y - 2 = 1*(x - 2)

y = x

4 0

2 years ago