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3 years ago

Which part of the algebraic expression 7a - 4 is the constant?

Mathematics

2 answers:

alexira [117]3 years ago

5 0

The answer is 3. 4 because 4 doesn’t have a variable :)

____ [38]3 years ago

3 0

Answer:

Step-by-step explanation:

The answer is 3. 4 because 4 doesn’t have a variable

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A recent study showed that the length of time that juries deliberate on a verdict for civil trials is normally distributed with

tia_tia [17]

Answer:

Probability that deliberation will last between 12 and 15 hours is 0.1725.

Step-by-step explanation:

We are given that a recent study showed that the length of time that juries deliberate on a verdict for civil trials is normally distributed with a mean equal to 12.56 hours with a standard deviation of 6.7 hours.

<em>Let X = length of time that juries deliberate on a verdict for civil trials</em>

So, X ~ N( $\mu = 12.56, \sigma^{2} = 6.7^{2}$ )

The z score probability distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = mean time = 12.56 hours

$\sigma$ = standard deviation = 6.7 hours

So, Probability that deliberation will last between 12 and 15 hours is given by = P(12 hours < X < 15 hours) = P(X < 15) - P(X $\leq$ 12)

P(X < 15) = P( $\frac{X-\mu}{\sigma}$ < $\frac{15-12.56}{6.7}$ ) = P(Z < 0.36) = 0.64058

P(X $\leq$ 12) = P( $\frac{X-\mu}{\sigma}$ $\leq$ $\frac{12-12.56}{6.7}$ ) = P(Z $\leq$ -0.08) = 1 - P(Z < 0.08)

= 1 - 0.53188 = 0.46812

<em>Therefore, P(12 hours < X < 15 hours) = 0.64058 - 0.46812 = 0.1725</em>

Hence, probability that deliberation will last between 12 and 15 hours is 0.1725.

7 0

3 years ago

3/9 in simplest form

Molodets [167]

It is 1/3
3:3 =1
9:3 = 3
make sure that the top and bottom numbers divide with the same number :)

4 0

3 years ago

pls help asap math for 15 points . step by step explanation!!!:) movies . David likes to watch animated movies so he goes to the

Natali [406]

Answer: May 7

Step-by-step explanation: If he watches cars 3 on April 7 and the friend likes to watch movies every 7th day of the month then the next month they can watch movies together!

3 0

3 years ago

You are a NASCAR fan that collects cars that are 1:64 scale to the original car. If your collection has cars that are 3 inches i

Fudgin [204]

Since we know that the ratio of the model car to the real car is 1:64, therefore we use this to solve this true length of the real NASCAR vehicle, let us call this us X, so that:

1 : 64 = 3 inches : X

1 / 64 = 3 inches / X

X = 192 inches

<span>
The true length is 192 inches</span>

3 0

2 years ago

Read 2 more answers

1/4(1-2/3)^2+1/3 Simplify

MrMuchimi

Simplifying the expression gives 13/ 36

<h3>How to solve the expression</h3>

Given;