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Westkost [7]
3 years ago
7

What is the value of x? Enter your answer in the box.

Mathematics
1 answer:
natka813 [3]3 years ago
3 0
As you see half of X is 68 as shown on the top wouldn't you do 68*68?

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218,457 to the nearest hundred thousands
Tomtit [17]
200,000 because the numbers in the middle are low
8 0
2 years ago
Jolie purchased a concert ticket on a web site. The original price of the ticket was $110. She used a coupon code to receive a 1
Leya [2.2K]

Answer:

10 percent

Step-by-step explanation:

i took a test

4 0
3 years ago
Among the four northwestern states, Washington has 51% of the total population, Oregon has 30%, Idaho has 11%, and Montana has 8
morpeh [17]

Answer:

Step-by-step explanation:

H₀ : The distribution of the sample agrees with the population distribution.

H₁ : the distribution of the does not agree with the population distribution.

Using the  Chi-square test statistics

we will compute the expected frequencies

Now expected frequency for Washington will be

Fe = Npi = 1000×51% = 5100

expected frequency for Oregon

Fe = Npi = 1000×30% = 300

expected frequency for Idaho

Fe = Npi = 1000×11% = 110

expected frequency for  Montana

Fe = Npi = 1000×8% = 80

The Chi=square test statistics is;

x² = ∑ [ (Fo - Fe)² / Fe )

now we substitute

Given our Fo ( 450 in Washington, 340 in Oregon, 150 in Idaho, and 60 in Montana) from the question

x² =  (450-510)²/510 + (340-300)²/300 + (150-110)²/110 + (60-80)²/80

x²= 31.9376

so the chi-square test statistics is 31.9376

Now the chi-square critical value

first we compute for degree of freedom

d.f = k -1 = 4 - 1 = 3

So from the critical value table, degree of freedom 3 and significance level 0.05,

the chi-square critical value is 7.8147

Therefore chi-square test statistics 31.9376 is greater than the chi-square critical value 7.8147, so NULL HYPOTHESIS IS REJECTED at 5% significance.

There is sufficient evidence to warrant rejection  of the claim that the distribution of the sample agrees with the distribution of the state populations.

3 0
3 years ago
Find any points of discontinuity for the rational function. y=x-5/x^2-7x-8
kotegsom [21]
For discontinuity of the function:
x² - 7 x - 8 ≠ 0
x² - 8 x + x - 8 = 0
x ( x - 8 ) + ( x - 8 ) ≠ 0
( x - 8 ) ( x + 1 ) ≠ 0
The points of discontinuity are: x = - 1 and x = 8.
As for the Domain of the function:
x ∈ ( - ∞, - 1 ) ∪ ( - 1 , 8 ) ∪ ( 8, +∞ ). 
3 0
3 years ago
Read 2 more answers
222222222222-22111111111111111
stealth61 [152]
222222222222-22111111111111111
= - 2.2111 × 10^16
3 0
2 years ago
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