Answer:
5
2
−
6
+
1
1
5
w
2
−
6
+
11
5w2−6+11
Simplify
1
Add the numbers
5
2
−
6
+
1
1
5
w
2
−
6
+
11
5w2−6+11
5
2
+
5
Step-by-step explanation:
What number makes a ratio equivalent to 7:15
Answer:
double those numbers:
14:30 is equivalent to 7:15
May I have brainliest please? :)
Please help!!!!!!!!!!!!!!!!!!!!!!!!
the answer is A cuz non of the number are repeated
A local club had a fundraiser to raise money for 15 different programs. They
raised $1,275. The club wants each program to get the same amount of money.
How much should each program receive?
Answer:
The answer is 85. each program gets $85 each.
Step-by-step explanation:
Divide 1275 and 15
Slope intercept form of equation
Answer:
slope= 5/3 y-intercept=3
Step-by-step explanation: Equation= y=5/3x+3
Hope this helps
btw can i have brainliest?
What is the slope of the line through (13,6) and (13,-11)
Answer:
Undefined
Step-by-step explanation:
PLEASE HELP ME OUT WILL MARK BRAINLIEST
Answer:
I'm pretty sure the answer is D.
Step-by-step explanation:
A quiz had 20 questions. Andre scored 16 of them correctly. What was
Andre's percent score? *
Answer:
80%
Step-by-step explanation:
16 divided by 20
What is the quotient оf (x - 3x + 3x2 - 3) - (x-1)? О - 2х - 3 x + 2x +7 - 3x 48 5 - 2x +3
A professor of statistics wants to test that the average amount of money a typical college student spends per day during spring break is over $70. Based upon previous research, the population standard deviation is estimated to be $17.32. The professor surveys 35 students and finds that the mean spending is $72.43. Which of the following statements is most accurate? Select one: a. reject the null hypothesis at ? = 0.01 b. reject the null hypothesis at ? = 0.10 c. fail to reject the null hypothesis at ? ? 0.10 d. reject the null hypothesis at ? = 0.05
Answer:
Option c: Fail to reject the null hypothesis at α = 0.10
Step-by-step explanation:
We are given;
Population mean; μ = 70
population standard deviation; σ = 17.32
Sample mean; x¯ = 72.43
Sample size; n = 35
Thus;
Null hypothesis; H0: μ = 70
Alternative hypothesis; Ha: μ > 70
Z-score formula is;
z = (x¯ - μ)/(σ/√n)
z = (72.43 - 70)/(17.32/√35)
z = 2.43/2.9276
z = 0.83
From online p-value from z-score calculator attached, using z = 0.83; significance level = 0.05 and one tailed hypothesis, we have;
P-value ≈ 0.2033
It's more than the significance value, so we will fail to reject the null hypothesis at α = 0.05
Similarly, From online p-value from z-score calculator attached, using z = 0.83; significance level = 0.01 and one tailed hypothesis, we have;
P-value ≈ 0.2033
It's more than the significance value, so we will fail to reject the null hypothesis at α = 0.01
Similarly, From online p-value from z-score calculator attached, using z = 0.83; significance level = 0.10 and one tailed hypothesis, we have;
P-value ≈ 0.2033
It's more than the significance value, so we will fail to reject the null hypothesis at α = 0.10
From the 3 significance values, the correct option is option c. fail to reject the null hypothesis at α = 0.10
Using the z-distribution, it is found that the most accurate statement is:
c. fail to reject the null hypothesis at [tex]\alpha = 0.1[/tex]At the null hypothesis, it is tested if the average spending is not over $70, that is:
[tex]H_0: \mu \leq 70[/tex]
At the alternative hypothesis, it is tested if it is over $70, that is:
[tex]H_1: \mu > 70[/tex].
We have the standard deviation for the population, hence, the z-distribution is used to solve this question.
The test statistic is given by:
[tex]z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
The parameters are:
[tex]\overline{x}[/tex] is the sample mean. [tex]\mu[/tex] is the value tested at the null hypothesis. [tex]\sigma[/tex] is the standard deviation of the sample. n is the sample size.In this problem, the values of the parameters are as follows: [tex]\overline{x} = 72.43, \mu = 70, \sigma = 17.32, n = 35[/tex].
Hence, the value of the test statistic is:
[tex]z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{72.43 - 70}{\frac{17.32}{\sqrt{35}}}[/tex]
[tex]z = 0.83[/tex]
Using a significance level of [tex]\alpha = 0.1[/tex], the critical value for the right-tailed test, as we are testing if the mean is greater than a value, is [tex]z^{\ast} = 1.28[/tex].
The lower the significance level, the higher the critical value.Since for a significance level of 0.1, [tex]z < z^{\ast}[/tex], we fail to reject the null hypothesis at [tex]\alpha = 0.1[/tex], and option c is correct.
You can learn more about the use of the z-distribution to test an hypothesis at https://brainly.com/question/16313918
Questions in the picture
Answer:
This is not a function. This is because if there are any repeating x values (the first values of each set) it is not a function. It is okay for there to be repeating y values (the second values of each set) but not x values.
Step-by-step explanation:
I am guessing the question is if this is a function.
Your beginning balance on your lunch account is $42. You buy lunch for $1.80 every day and sometimes buy a snack for $0.85. After 20 days, you have a balance of $0.05. How many snack did you buy?
Answer:
53 snacks
Step-by-step explanation:
can someone please help?
What are the possible values of x given that
log2(x2+5x+14)3?
Answer:
Step-by-step explanation:
Answer:
o.90309x^2 + 4.51545x + 12.64326
Consider the system of inequalities and its graph.
y>x/4
y
in which section of the graph does the actual solution to the system lie
1
2
3
4
Considering the system of inequalities and its graph, the section of the graph where the actual solution lies is at:
3
What is inequality?Inequality, is a declaration of an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal to.
For the given graph the solution is the point where the shading intersect and the number in this area is 3
Therefore, we conclude that point 3 is the area for the actual solution of the inequality
Learn more about inequality at:
https://brainly.com/question/24372553
#SPJ1
What is a solution to (x + 6)(x + 2) = 60?
Answer:
x=4 or -12
Step-by-step explanation:
4(x + 63x
Part A If a and b are different real numbers, what is the form of the solution of this equation?
A. a=a
B. a= b
C. x= a
D. X=-X
Part B How many solutions does this equation have? Enter the answer in the box.
A nail artist makes 33085 a year. If they get paid semimonthly, how much do they get each paycheck? Round to the nearest cent
Answer:
1378.54
Step-by-step explanation:
First multiply 12 by 4. You get 48 then divide it by 2 and You get 24. divide 33085 by 24 and you get 1378.54.
During the summer, the town pool is open for 7 1/2 hours during the day. Each lifeguard works a shift for 3/4 of an hour. How many shifts are there during the day? do it in fraction form
(4g^2 + 4g + 8) - (g + 3)
Answer:
4g²+3g+5
Basically factor the first equation and simplify.
samantha needs to bake at least 120 pot pies to sell at her restaurant. she can bake 12 pot pies per hour and 15 veggie pot pies per hour.
write an inequality that represents the situation. let X be the number of hours she spends making chicken pot pies and y be the number of hours she spends making veggie pot pies.
Answer:
y>(line under >) - 4/5x + 8
Step-by-step explanation:
Phrase "at least" indicates that the total number of pies is greater than or equal to 120.
The number of chicken pot pies Samantha makes is 12x, and the number of veggie pot pies she makes is 15y.
Use this information to create the inequality:
12x + 15y >(line under >) 120
Simplify by solving for y to get this inequality:
y >(line under >) - 4/5x + 8
How many solutions does the equation 3x-9=3(x-3) have ?
Answer:0
Step-by-step explanation:
3x^9=3(x-3
We move all terms to the left:
3x^9-(3(x-3)=0
Answer:
1 solution which is infinite solutions
Step-by-step explanation:
There is only one solution to this because if we simplify both sides of the equation, we get 3x-9=3x-9. When we add 9 to both sides we are left with 3x=3x and subtracting 3x from both sides will make the equation 0=0 which is infinite solutions. This is the only answer/solution we can get from this problem
Last week, a store sold laptops worth a total of $3, 885. Each laptop cost $555. How many laptops did the store sell last week?
Answer:
Should be 7
Step-by-step explanation:
Answer:
7 laptops
Step-by-step explanation:
3, 885 divided by 555= 7
15h=465
:) help me please
Olivia typed 2 pages in 12 minutes. How long will it take her to type 10 pages at this rate?
Answer:
60
Step-by-step explanation:
If Olivia typed 2 pages in 12 minutes, this means that she can type 1 page in 6 minutes. Since we're looking for the amount of time it would take her to type 10 pages, we multiply 6 by 10 to get 60.
Answer:
60 minutes
Step-by-step explanation:
if Olivia writes 2 pages in 12 minutes that means she writes 1 page in 6 minutes. 6 minutes per page times 10 pages equals 60 minutes for 10 pages.
Arrow is planning to bake approximately 305 cookies. If 3 pounds of cookie dough make 96 cookies, how many pounds of cookie dough should he make?
Answer: 10
Step-by-step explanation: 96 divided by 3 is 32
32 x 10 = 320 you can't get exactly 305.
Identify the ration numbers as a positive or negative.
Answer:
(From left to right) negative, negative, positive, positive, negative, positive, negative, positive
Help plz:))) I’ll mark u brainliest ASAP 10 points(:(:
Answer:
G > F > H
Step-by-step explanation:
In a triangle, the largest side and largest angle are opposite eachother. Similarly, the smallest side and smallest angle are opposite eachother.
We have 3 sides of length 6 cm, 11 cm, and 12 cm. The angle opposite the 6 cm side is the smallest (H). The angle opposite the 14 cm side is the largest (G).
What is the effect on the graph of f(x)=1xf(x) = \frac{1}{x}f(x)=x
1 when it is transformed to g(x)=1x−7g(x) = \frac{1}{x} - 7g(x)=x
1−7?
A.
The graph of f(x) is shifted 7 units down.
B.
The graph of f(x) is shifted 7 units to the left.
C.
The graph of f(x) is shifted 7 units to the right.
D.
The graph of f(x) is shifted 7 units up.
Answer:
A
Step-by-step explanation:
Which of the following demonstrates the Commutative Property of addition?
4+2=2+4
0(3+1) = 0
(1+2) + 3 =
1 + (2+3)
a*1= a
Answer:
To my calculations, I think its the first one, 4+2=2+4
I hope this helps! ^^
Apologizes if you get it wrong-
Step-by-step explanation:
3/8 divided by 1/2 equals what
Answer:
0.75 or 3/4Step-by-step explanation:
3/8 = 0.375
1/2 = 0.5
0.375 ÷ 0.5 = 0.75
3/8 ÷ 1/2 = 3/4
Hope this helps! <3