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pashok25 [27]
2 years ago
14

8. Sheila and her study partner flipped a coin 120 times. They flipped 70 heads and 50 tails. What is the

Mathematics
2 answers:
nasty-shy [4]2 years ago
3 0

Answer:

.

Step-by-step explanation:

eduard2 years ago
3 0

Answer:

F

Step-by-step explanation:

To find the amount of percent a value takes up, here's the formula:

Let X = heads

Let y = amount of coinflips

Let z = percent of coinflips are heads

z=x/y

You might be interested in
A pump fills a pool at a constant rate. At the end of 21 minutes it has filled 7 gallons of water. Which table represents the re
likoan [24]

Answer:

B.

Step-by-step explanation:

cuz you take 21 divide by 7 equals 3. 33 divided by 3 equals 11

i hope this is right!!! :)

6 0
2 years ago
Given f(x) = x² - 10x + 22, what is the range of f?
adoni [48]

Answer:

[-3, ∞)

Step-by-step explanation:

There are many ways to find the range but I will use the method I find the easiest.

First, find the derivative of the function.

f(x) = x² - 10x + 22

f'(x) = 2x - 10

Once you find the derivative, set the derivative equal to 0.

2x - 10 = 0

Solve for x.

2x = 10

x = 5

Great, you have the x value but we need the y value. To find it, plug the x value of 5 back into the original equation.

f(x) = x² - 10x + 22

f(5) = 5² - 10(5) + 22

      = 25 - 50 +22

      = -3

Since the function is that of a parabola, the value of x is the vertex and the y values continue going up to ∞.

This means the range is : [-3, ∞)

Another easy way is just graphing the function and then looking at the range. (I attached a graph of the function below).

Hope this helped!

6 0
3 years ago
If A line has a y -intercept of 10 and a slope of 4 . What is its equation in slope -intercept form
chubhunter [2.5K]

Answer:

<h2>          y = 10x + 4</h2>

Step-by-step explanation:

The equation of a line in slope-intercept form is: y = mx + b, where <em>m</em> is a slope and<em> b</em> is y-intercept.

m = 10

b = 4

So, the equation:  y = 10x + 4

6 0
3 years ago
¿A qué porcentaje corresponden 32 unidades de un total de 40?
mezya [45]

Answer:

Explicación paso a paso: 32 * 100 = 3,200. 3,200/40 = 80%. esa es la fórmula correcta para sacar este porcentaje

Step-by-step explanation:

:)

8 0
2 years ago
Help me out please :)
Veseljchak [2.6K]

Answer: -6 is the answer

Step-by-step explanation:

4 0
3 years ago
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