Ask question

Ask question

All categories

3 years ago

7

Looking for someone to answer my question...I just thanked that person if you know who you are write me...I might not check unti

l about 1-2 days later.

1 answer:

likoan [24]3 years ago

6 0

Answer:

what question do u want answered

Step-by-step explanation:

You might be interested in

If at least one of these two numbers is divisible by 6, then the product of these two numbers is divisible by 6. Neither of thes

lubasha [3.4K]

Answer:

(a)then the product of these two numbers is divisible by 6.

Step-by-step explanation:

If a and b are two integers where at least one of a or b is divisible by 6, the product ab will also be divisible by 6.

If, a is divisible by 6, a/6 = c (an integer).

Product of a and b, (ab)/6 = (a/6) X b =cb.

Likewise if b is divisible by 6, same rule applies.

We only need a term in the product to be divisible by an integer for the product to be divisible by the integer.

4 0

3 years ago

Can someone help me find x

Viefleur [7K]

Answer:

Rounded to the nearest tenth: $x=5.7$ in

Rounded to the nearest hundredth: $x=5.74$ in

Step-by-step explanation:

We have a right triangle with a given angle of 35°. We also have the opposite side of that angle, $x$ , and its hypotenuse 10 in. To find $x$ , we are using the trig function that relates the opposite side with the hypotenuse; in other words, the sine trig function.

$sin\alpha =\frac{opposite}{hypotenuse}$

$sin(35)=\frac{x}{10}$

$x=10sin(35)$

$x=5.735764364$

Rounded to the nearest tenth: $x=5.7$ in

Rounded to the nearest hundredth: $x=5.74$ in

4 0

3 years ago

Two number cubes are tossed together; one is blue and the other is orange. What is the probability of getting an odd number on t

scoray [572]

5⇒(1,4),(3,2) where (orange,blue)

P= 2/36=1/18

5 0

3 years ago

Read 2 more answers

Use absolute value to express the distance between −13 and 17 on the number line.

goblinko [34]

Just do your work and pay attention in class!!!!

4 0

3 years ago

Read 2 more answers

(1 point) Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed

Fynjy0 [20]

Answer:

a) 0.719 = 71.90% of children aged 13 to 15 years old have scores on this test above 92

b) A score of 89.8 marks the lowest 25 percent of the distribution

c) A score of 145.48 marks the highest 5 percent of the distribution

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 106, \sigma = 24$

(a) What proportion of children aged 13 to 15 years old have scores on this test above 92 ?

This is 1 subtracted by the pvalue of Z when X = 92. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{92 - 106}{24}$

$Z = -0.58$

$Z = -0.58$ has a pvalue of 0.2810

1 - 0.2810 = 0.719

0.719 = 71.90% of children aged 13 to 15 years old have scores on this test above 92

(b) What score which marks the lowest 25 percent of the distribution?

The 25th percentile, which is X when Z has a pvalue of 0.25. So it is X when Z = -0.675.

$Z = \frac{X - \mu}{\sigma}$

$-0.675 = \frac{X - 106}{24}$

$X - 106 = -0.675*24$

$X = 89.8$

A score of 89.8 marks the lowest 25 percent of the distribution

(c) Enter the score that marks the highest 5 percent of the distribution

The 100-5 = 95th percentile, which is X when Z has a pvalue of 0.95. So it is X when Z = 1.645

$Z = \frac{X - \mu}{\sigma}$

$1.645 = \frac{X - 106}{24}$

$X - 106 = 1.645*24$

$X = 145.48$

A score of 145.48 marks the highest 5 percent of the distribution

8 0

3 years ago