Answer:
x+56
Step-by-step explanation:
The product of two numbers is the result you get when you multiply them together. And refers to addition.
(6x+7) (8x-17)
Answer:
x=12
Step-by-step explanation:
6x+7=8x-17
-6x -6x
7=2x-17
+17 +17
24=2x
÷2 ÷2
12=x
x=12
Enter your answer in the box.
Hey, this is worked out the same way as the last problem you posted!
Remember that constant of proportionality is slope...
(y2-y1) ÷ (x2 -x1)
↓
(225 - 135) ÷ (5 - 3)
↓
90 ÷ 2
↓
45
The constant of proportionality is 45
(Do not simplify.)
The expression that represents the elevation is 5,776-(-9)=5,785.
Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that at its highest point, the elevation of a county is 5,776 feet above sea level. At its lowest point, the elevation of the county is 6 feet below sea level.
The expression will be generated by subtracting the two heights.
5,776-(-9) = 5,785.
Therefore, the expression that represents the elevation is 5,776-(-9)=5,785.
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Answer:
5,776-(-9)
positive
5,785
Step-by-step explanation:
Write an integer that represents the elevation of a county feet below sea level.
Answer:
Step-by-step explanation:
Hello,
This is the equation of a line so if you know two points of the line you can graph it, right?
For x = 0 y = -3 so the point A (0,-3) is on the graph
For x = 3 y =-4 so the point B (3,-4) is on the graph
And then you can draw the line as below
Thanks
x^2+8x+ y2 + 4y - 5= 0
Answer:
Center is at (-4, -2) and the radius = 5.
Step-by-step explanation:
Convert to Standard form:
x^2 + 8x + y2 + 4y - 5= 0
Completing the square:
(x + 4)^2 - 16 + (y + 2)^2 - 4 = 5
(x + 4)^2 + (y + 2)^2 = 5 + 16 + 4
(x + 4)^2 + (y + 2)^2 = 25
(x - h)^2 + (y - k)^2 = r^2 Comparing:-
The center is at (-4, -2) and the radius = 5.
Answer:
The null and alternative hypothesis are:
There is not enough evidence to support the claim that the company is worng and less than 90% of all orders are mailed within 72 hours after they are received.
Step-by-step explanation:
This is a hypothesis test for a proportion.
The company claims that at least 90% of all orders are mailed within 72 hours after they are received. The company's claim is the null hypothesis, the claim that is going to be tested is if this proportion is significantly less than 90%.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The sample has a size n=150.
The sample proportion is p=0.86.
The standard error of the proportion is:
Then, we can calculate the z-statistic as:
This test is a left-tailed test, so the P-value for this test is calculated as:
\text{P-value}=P(z<-1.497)=0.0672
As the P-value (0.0672) is greater than the significance level (0.05), the effect is not significant.
The null hypothesis failed to be rejected.
There is not enough evidence to support the claim that less than 90% of all orders are mailed within 72 hours after they are received.
The null hypothesis is that 90% of all orders are shipped within 72 hours, denoted as H0: p = 0.90. The alternative hypothesis is that less than 90% of all orders are shipped within 72 hours, expressed as HA: p < 0.90.
In hypothesis testing, the null hypothesis represents the theory that has been put forward, either because it is believed to be true or because it is used as a basis for argument. In this case, the null hypothesis would be that 90% of all orders are shipped within 72 hours. This can be formulated as H0: p = 0.90 where p represents the proportion of all orders shipped within 72 hours.
The alternative hypothesis on the other hand is the hypothesis used in hypothesis testing that is contrary to the null hypothesis. Here, the alternative hypothesis would be that less than 90% of all orders are shipped within 72 hours. It can be expressed as HA: p < 0.90 where p remains the proportion of orders shipped within 72 hours.
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