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hjlf
2 years ago
7

Solve this a interval notation. 5 greater than or equal to |4-2x|

Mathematics
1 answer:
rosijanka [135]2 years ago
4 0
5≥|4-2x|
5≥4-2x≥-5
-1≤2x≤9
-0.5≤x≤4.5
x∈[-0.5;4.5]

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If you have a chance to win $500 for drawing a card of 10 of any suit from a standard deck of cards, what is the value of expect
Dimas [21]
The expected value is $38.46.

The probability of drawing a 10 from any suit is 4/52.  Multiply this by the earnings, 500:

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6 0
3 years ago
At the candy store there are 420 gumdrops and 280 chocolate bars, for a total of 700 candies all together. What is the ratio of
Mekhanik [1.2K]

Answer:

5 : 2

Step-by-step explanation:

Given that:

Number of gumdrops = 420

Number of chocolate bars = 280

Total Number of candies = 700

To find:

The ratio of candies to chocolate bars = ?

Solution:

First of all, let us discuss the method to find the ratio of any two quantities.

Suppose, we need to find the ratio of two numbers p and q.

Then to find the ratio p:q , we need to divide p by q and represent it in the simplest form \frac{a}{b} such that a and b can not be divided further.

Here, to find the ratio of candies to chocolate bar:

Ratio = \dfrac{\text{Number of candies}}{\text{Number of chocolate bars}}\\\Rightarrow \dfrac{700}{280}

Here, we can simplify the fraction by dividing the numerator and denominator by 10 first:

\dfrac{70}{28}

Now, let us divide the numerator and denominator by 14:

\dfrac{5}{2}

So, the ratio is <em>5 : 2</em>

6 0
2 years ago
An alarm rings 8 times in 5 seconds. What is the unit rate ,in rings per second?
DedPeter [7]
1.6 rings per second
6 0
2 years ago
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PLEASE HELP WILL GIVE U BRAINLIEST TYYY
Alecsey [184]

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the current points are

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8 0
1 year ago
Cos(x/3)cos(x/3)=1/2(1+cos(2x/3))
TEA [102]
This follows from the half-angle identity for cosine.

\cos^2\theta=\dfrac{1+\cos2\theta}2
6 0
3 years ago
Read 2 more answers
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