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2 years ago

Is x great thank, less than or equal to 146

Mathematics

2 answers:

bogdanovich [222]2 years ago

6 0

Answer:

i think its less than

Fynjy0 [20]2 years ago

5 0

Answer:

Is there more to this question?

Step-by-step explanation:

I want to help but i am confused. is x great thank

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Select each expression that is equivalent to 4(x + 8)

Triss [41]

Answer:

4(x + 8) is equivalent to 4x + 32, 4x + 8(4),

2(2x + 16)

Step-by-step explanation:

4(x + 8)

4 × x + 4 × 8

4x + 32

Thus, 4(x + 8) is equivalent to 4x + 32, 4x + 8(4),

2(2x + 16)

<u>-TheUnknownScientist</u>

6 0

2 years ago

Read 2 more answers

When Hugo is serving at a restaurant, there is a 0.03 probability that each party will request a high chair

tino4ka555 [31]

Answer:

.26

Step-by-step explanation:

P=(at least one high chair)

= 1−P(none of 10 with high chair)

= 1−(0.97)

≈ 1−0.7374

≈ 0.2626

Rounded to the nearest hundred is .26

4 0

2 years ago

A random sample of 35 undergraduate students who completed two years of college were asked to take a basic mathematics test. The

disa [49]

Answer:

The 90 % confidence limits are (-2.09, 8.09).

Since the calculated values do not lie in the critical region we accept our null hypothesis.

Step-by-step explanation:

The null and alternative hypothesis are given by

H0: σ₁²= σ₂² against Ha: σ₁² ≠ σ₂²

Confidence interval for the population mean difference is given by

(x`1- x`2) ± t √S²(1/n1 + 1/n2)

Where S ²= (n1-1)S₁² + S²₂(n2-1)/n1+n2-2

Critical value of t with n1+n2-2= 50+ 35-2= 83 will be -1.633

Now calculating

S ²=34* (12.8)²+ (14.6)²*49/83= 192.96

Now putting the values in the t- test

(75.1 -72.1) ± 1.633 √ 192.96(1/35 +1/50)

=3 ± 5.09

=-2.09, 8.09 is the 90 % confidence interval for the difference

The 90 % confidence limits are (-2.09, 8.09).

Since the calculated values do not lie in the critical region we accept our null hypothesis.

5 0

2 years ago

On average a herd of elephants travels 10 miles in 12 hours<br>(picture included)

Tema [17]

For the first Q the answer is the first square on the left 10 miles divided by 12 hours = 0,83 miles

And the second Q goes with the last square 12 hours divided by 10 miles = 1.2 h which in minutes is 72 minutes or 1h and 12 minutes.

4 0

2 years ago

Read 2 more answers

Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12

BARSIC [14]

We are told that Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12, 11, 12, 12, and 13. Christina wants to describe the players’ ages in an article for the school newspaper.

Since we know that range of a data is difference between the highest and lowest values of a data set. Range of our data set will be 4 (14-10). A group of different ages could have same range as Christina's data set. So range will be not a good option.

A measure of central tendencies will be better option to represent information about ages of softball team players. Mean will give the average age of softball players.

$\text{Mean age of players}=\frac{10+11+11+12+12+12+12+12+13+13+13+14}{12}$

$\text{Mean age of players}=\frac{145}{12}=12.0833$

Let us find median of data.

10,11,11,12,12,12,12,12,13,13,13,14

$\text{Median age of softball players}=\frac{12+12}{2}$

$\text{Median age of softball players}=\frac{24}{2}=12$

We can see that average of our data is 12 years.

Therefore, a measure of central tendency will be better choice to describe ages of softball players.

7 0

2 years ago