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Bess [88]
3 years ago
13

Which statement is true about the points shown on the number line?

Mathematics
2 answers:
Katen [24]3 years ago
6 0

Answer:

The correct answer is d.

Step-by-step explanation:

Here we need to recall that if we fix the zero as a point of reference, to his left there are the negative numbers and to his right the positive numbers.

Then, in this exercise it is not difficult to see that the number -4.5 is to the left with respect to -2.3.

In order to find which number is large we need to remember that in the line, the further to the right a number becomes larger, and the further to the left the number becomes smaller.

Always we can use the zero as example: -1<0, and -1 is to left of 0. Besides, 0<1, and 1 is to the right of 0. Then, if we fix a number, to his right are all numbers larger than him, and to his left all numbers smaller.

In this case, -4.5<-2.3.

With this last fact, we conclude that d. is the correct answer.

Arlecino [84]3 years ago
5 0
It should be "A"

On the number line, it shows that -4.5 is further and to the right of -2.3.

Hope that helps!
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Step-by-step explanation:

√24= √(<u>2×2</u>×2×3)

=2√2×3

=2√6

8 0
3 years ago
PLEASE HELP I NEED TO PASS THIS CLASSS!!!!!!!!!!
Nuetrik [128]

Answer:

1, 2, 4

Step-by-step explanation:

The triangles are similar by AAA or SSS (yes)

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5 0
3 years ago
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 76.676.6
faltersainse [42]

Answer:

Step-by-step explanation:

Researchers measured the data speeds for a particular smartphone carrier at 50 airports.

The highest speed measured was 76.6 Mbps.

n= 50

X[bar]= 17.95

S= 23.39

a. What is the difference between​ the carrier's highest data speed and the mean of all 50 data​ speeds?

If the highest speed is 76.6 and the sample mean is 17.95, the difference is 76.6-17.95= 58.65 Mbps

b. How many standard deviations is that​ [the difference found in part​ (a)]?

To know how many standard deviations is the max value apart from the sample mean, you have to divide the difference between those two values by the standard deviation

Dif/S= 58.65/23.39= 2.507 ≅ 2.51 Standard deviations

c. Convert the​ carrier's highest data speed to a z score.

The value is X= 76.6

Using the formula Z= (X - μ)/ δ= (76.6 - 17.95)/ 23.39= 2.51

d. If we consider data speeds that convert to z scores between minus−2 and 2 to be neither significantly low nor significantly​ high, is the​ carrier's highest data speed​ significant?

The Z value corresponding to the highest data speed is 2.51, considerin that is greater than 2 you can assume that it is significant.

I hope it helps!

3 0
3 years ago
In a population, 93% of the people are right-handed, and 7% of the people are left-handed. In each of the last 100 days, 1 perso
vfiekz [6]
The answer is 93%... Pretty sure.
3 0
3 years ago
Read 2 more answers
Jorge received a 3.1% increase in his pay at work. If he now makes $8.00 per hour, how much was he making before his raise? (Rou
Blababa [14]

Answer:

$7.76

Step-by-step explanation:

Let x be the amount he was making before the raise.

He had an increase of 3.1% of x added to x which resulted in a new salary of $8.00 per hour.

Mathematically:

(\frac{3.1}{100} * x) + x = 8\\\\0.031x + x = 8\\\\1.031x = 8\\\\=> x = 8 / 1.031

x = $7.76

He was making $7.76 before the raise.

4 0
3 years ago
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