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Bad White [126]

3 years ago

15

A coin is tossed 20 times. It lands on heads 4 times. What is the experimental probability as a fraction in its lowest form? (pl

ease help) ;)

1 answer:

Oxana [17]3 years ago

4 0

Answer:i dontnn4re'w

Step-by-step explanation:

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12. Write the equation of a parabola with vertex at<br> (2, -3) and focus at (2,5),

Tatiana [17]

Step-by-step explanation:

The basic form of equation:

(x-h)²=4a(y-k),

(h,k)=coordinates of vertex

(h, k+a) = coordinate of focus

For given parabola:

axis of symmetry: x=2

(h, k) =(2,-3)

(h, k+a)=(2,5)

k+a=5

-3+a=5

a=8(distance from vertex to focus on the axis of symmetry)

equation: (x-2)²=4×8(y+3)

(x-2)²= 32(y+3)

7 0

3 years ago

Harman [31]

Answer:

h=-6 k=-30

Step-by-step explanation:

$y=x^2+12x+6$

$\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=ax^2+bx+c\:\mathrm{is}\:x_v=-\frac{b}{2a}$

$a=1,\:b=12,\:c=6$

$x_v=-\frac{b}{2a}$

$x_v=-\frac{12}{2\cdot \:1}\\$

$x_v=-6\\$

$\mathrm{Plug\:in}\:\:x_v=-6\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}$

$y_v=\left(-6\right)^2+12\left(-6\right)+6\\y_v=-30\\\left(-6,\:-30\right)$

3 0

2 years ago

What is the value of B for the following triangular prism?

damaskus [11]

Step-by-step explanation:

$\frac{1}{2} (10)(12) \\ \frac{1}{2} (120) \\ 60 {cm}^{2}$

6 0

3 years ago

22. Every hour, Jennifer can sew 24 dresses

JulsSmile [24]

Answer:

2.5 hours

Step-by-step explanation:

24 + 20 = 44

110 divided by 44 = 2.5

3 0

2 years ago

3x square+6y Square when X=0 and y=2 with steps pls

Sauron [17]

Answer:

If the equation is 3x^2+6y^2, when x=0 and y=2.

Then, 3(0)^2+6(2)^2=

So, 0+6(4)= 24

Therefore, the answer is 24.

Step-by-step explanation:

8 0

3 years ago