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2 years ago

Is 3/4 is e qual to 8/12 fraction

Mathematics

1 answer:

LuckyWell [14K]2 years ago

3 0

Answer:

Step-by-step explanation:

8/12 = 2/3

3/4 = 9/12

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A man sells two mobile phones at the same price . on one he makes a profit of 10% and on the other he invited a loss of 10%. fin

Gennadij [26K]

Answer:

I had that answer but i lost my paper

Step-by-step explanation:

sorry

4 0

3 years ago

An equilateral triangle has a perimeter of 12 x + 18 units. Which expression can be used to show the length of one side of the t

vesna_86 [32]

Kskdkdkkddkkdkdkdkdkdkkdd

4 0

3 years ago

What are the key aspects of the graph of f(x) = x2 - 62,<br> where b is a real number?

8090 [49]

Answer:

The x intercepts are b , - b

The y-intercept is - b²

The vertex is (0 , - b²)

The axis of symmetry of the function is the y-axis

Step-by-step explanation:

* Lets explain the key aspects of the quadratic function

- There are many key aspects in a quadratic graph such as:

# x-intercepts

# y-intercept

# The vertex

# Axis of symmetry

* Lets solve the problem

∵ f(x) = x² - b² is a quadratic function

∵ The general form of the quadratic function is f(x) = Ax² + B(x) + C

where A , B , C are constant

∴ A = 1 , B = 0 , C = -b²

- To find the x-intercept put f(x) = 0

∵ f(x) = x² - b²

∴ x² - b² = 0 ⇒ add b² for both sides

∴ x² = b² ⇒ take √ for both sides

∴ x = ± b

∴ The x intercepts are b , - b

- To find the y-intercept put x = 0

∵ f(x) = x² - b²

∴ f(0) = 0 - b²

∴ f(0) = - b²

∴ The y-intercept is - b²

- The vertex of the function is (h , k) where h = -B/2A and k = f(h)

∵ A = 1 and B = 0

∴ h = 0/2(1) = 0

∵ k = f(h)

∴ k = f(0) = 0 - b² = - b²

∴ k = - b²

∴ The vertex is (0 , - b²)

- The axis of symmetry of the quadratic function is a vertical line

passes through the vertex of it and its equation is x = h

∵ h = 0

∴ The equation of the axis of symmetry is x = 0

∵ The equation of the y-axis is x = 0

∴ The axis of symmetry of the function is the y-axis

7 0

3 years ago

What is the probability of flipping a coin 12 times and getting heads 3 times? Round your answer to the nearest tenth of a perce

attashe74 [19]

<h3>Answer: A) 5.4%</h3>

==================================

Explanation:

We use the binomial probability formula here

P(k) = (n C k)*(p)^k*(1-p)^(n-k)

In this case, there are n = 12 trials and p = 0.5 is the probability of getting heads. The value of k = 3 means we want 3 heads.

So,

P(k) = (n C k)*(p)^k*(1-p)^(n-k)

P(3) = (12 C 3)*(0.5)^3*(1-0.5)^(12-3)

P(3) = 220*(0.5)^3*(1-0.5)^(12-3)

P(3) = 0.0537109375

P(3) = 0.054

P(3) = 5.4%

-----------------

Side note: the n C k refers to the nCr combination formula

$_n C _r = \frac{n!}{r!*(n-r)!}$

where the exclamation marks mean factorials. You could also use Pascal's Triangle as an alternative for this portion.

6 0

3 years ago

Round 122.1587 to the nearest hundredth?

valina [46]

Answer:

100

Step-by-step explanation:

H T U

1 2 2

2 is a num below 5 therefore

2=0

8 0

3 years ago