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3 years ago

9/20+3/20 in simplest form

2 answers:

8 0

You have to add, and since the denominators are the same, you can add the numerators. 9/20 plus 3/20 is 12/20. This can be simplified by 4, so you divide the numerator by 4, then, divide the denominator by 4. You will then get 3/5 which is the simplest form.

neonofarm [45]3 years ago

6 0

9/20 plus 3/20 equals to 12/20, which is equal to 6/10, which is equal to 3/5

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K over 1.5 =3 what is the value of k

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4.5 is equal to k. This is the answer .

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A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. the length of the deck

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Alright, lets get started.

Suppose the original deck size: width = x feet

the width is one-fourth the length given in question means length = 4 x feet

Means the originally area = $x * 4 x = 4 x^{2}$

Now the dimensions are changed.

New dimensions, width = (x + 6)

new length = (4x+10)

So, new area will be = $(x+6) * (4x+10) = 4x^{2} + 10 x + 24 x + 60 = 4x^{2} + 34 x + 60$

the area of the new rectangular deck is 128 ft2 larger than the area of the original deck, means

$4x^{2} + 128= 4x^{2} + 34 x + 60$

Subtracting $4x^{2}$ from both sides

$128 = 34 x + 60$

Subtracting 60 from both sides

$128 - 60 = 34 x + 60 - 60$

$68 = 34 x$

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$\frac{68}{34} = \frac{34 x }{34}$

$x = 2$

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Length would be = 4 time width = 4 * 2 = 8 feet

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3 years ago

For lines c, d and e, m<1=90° and m<3=90°

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Relationship between angle 1 and angle 3 is corresponding angles.

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The distribution is

b) skewed.

The sum of the probabilities is:

Step-by-step explanation:

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The next quantity of significance in a binomial model is the number of independent trials, n. In our case there are 6 independent trials since we are told that 6 adults were selected at random. If we let the random variable K denote the number of adults out of the 6 who watch the television show, then K is a binomial random variable with parameters;

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A binomial distribution is only symmetric when either p is 0.5 or n is large. In the presented scenario none of this conditions is met since p is 0.4 while n is just 6 which is relatively small. Thus we conclude that the distribution is not symmetric but rather skewed.

The sum of the probabilities is any discrete probability distribution such as the bernoulli, binomial, negative binomial, poisson, or the geometric distribution is always equal to 1. That's a rule of thumb.

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