What is the simplest form of 6/20

In City A, the temperature rises 7 degrees F from 8AM to 9AM. Then the temperature drops 6 degrees F from 9AM to 10AM. In City B

madam [21]

Answer:

is there like a image of this eqation?

Step-by-step explanation:

5 0

2 years ago

What expression is equivalent to (8 squarded )and -4

kiruha [24]

Answer:

$8^{2} + -4$ = 64 - 4 =60

Step-by-step explanation:

5 0

2 years ago

4. Allen is showing his work in simplifying -8.3 + 9.2 - 4.4 + 3.7. Identify and explain any errors in his work or in his reason

Vladimir79 [104]

Answer:

-8.3 + 9.2 - 4.4 + 3.7

= -8.3 + 9.2 + (-4.4) + 3.7 {Additive inverse}

= -8.3 + (-4.4) + 9.2 + 3.7 {Commutative Property}

= [ -8.3 + (-4.4] + [ 9.2 + 3.7] {Associative property}

= - 12.7 + 12.9

= 0.2

Step-by-step explanation:

6 0

2 years ago

The heights of a certain type of tree are approximately normally distributed with a mean height y = 5 ft and a standard

Arisa [49]

Answer: Fourth Option:

"A tree with a height of 6.2 ft is 3 standard deviations above the mean"

Step-by-step explanation:

It is said that an X value is found Z standard deviations from the mean mu if:

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

In this case we have that:

$\mu=5\ ft$

$\sigma=0.4\ ft$

We have four different values of X and we must calculate the Z-score for each

For $X =5.4\ ft$

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

$Z=\frac{5.4-5}{0.4}=1$

This means that: A tree with a height of 5.4 ft is 1 standard deviation above the mean

First Option: False

For $X =4.6\ ft$

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

$Z=\frac{4.6-5}{0.4}=-1$

This means that: A tree with a height of 4.6 ft is 1 standard deviation below the mean

Second Option: False

For $X =5.8\ ft$

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

$Z=\frac{5.8-5}{0.4}=2$

This means that: A tree with a height of 5.8 ft is 2 standard deviation above the mean

Third Option: False

For $X =6.2\ ft$

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

$Z=\frac{6.2-5}{0.4}=3$

This means that: A tree with a height of 6.2 ft is 3 standard deviations above the mean.

Fourth Option: True

3 0

2 years ago

Read 2 more answers

You want to know how many of the students at your school eat lunch everyday. Of the 3545 students you randomly ask 300. 220 say

natita [175]

Answer:

B) 2600

Step-by-step explanation:

Set up a proportional equation and solve:

220/300=x/3545

(220)(3545)=300x

779900=300x

2599.666=x

2600=x

Your best estimate is B) 2600

6 0

2 years ago