Answer:
n<-27
Step-by-step explanation:
you have to get n by itself, to do this divide -3 from both sides of the equations.
-3n/-3<81/-3
n<-27
the answer is n<-27
8 + (8 + 2) + (6 * 2) =
Answer:
Easy
Step-by-step explanation:
So you have 8, then you add the 2 numbers in the parenthesis 8+2 is 10 then you add 6+2 is 8 the you get 18 from 10 plus 8 and then add 8 which is 18+8=26
HOPE THIS HELPED!!!! Have a great day.
Assume a significance level of α=0.01 and use the given information to complete parts (a) and (b) below. Original claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 75 bpm. The hypothesis test results in a P-value of 0.0087. a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.) Choose the correct answer below. A. Reject H0 because the P-value is less than or equal to α. B. Fail to reject H0 because the P-value is less than or equal to α. C. Fail to reject H0 because the P-value is greater than α. D. Reject H0 because the P-value is greater than α.
Answer:
A. Reject H0 because the P-value is less than or equal to α.
Step-by-step explanation:
Decision:
If the pvalue of the test is less than the significance level, we reject the null hypothesis H0.
Otherwise, we fail to reject the null hypothesis H0.
In this question:
Significance level: 0.01
P-value: 0.0087
0.0087 < 0.01, so we reject H0.
The correct answer is given by option A.
102 x5 multiply with expanded form
- Scores on an exam are normally distributed woth a population standard deviation of 5.6. A random sample of 40 scores on the exam has a mean of 32 estimate the population mean with - A) 80% confidence - B) 90% - C) 98%
Answer: i think i got b or c onr of them are correct :)
Step-by-step explanation:
The estimated population mean with
80% confidence = [30.856, 33.135]
90% confidence = [30.543, 33.456]
98% confidence = [29.94, 34.06]
What is confidence interval?For a population with unknown mean and known standard deviation , a confidence interval for the population mean, based on a simple random sample of size n, is [tex]\bar x +_{-}z^{*}\frac{\sigma}{\sqrt{n} }[/tex] , where z* is the upper (1-C)/2 critical value for the standard normal distribution.
Population standard deviation = 5.6
Sample mean = 32
Sample size = 40
Given confidence level = 80%
[tex]z^{*}[/tex] at 80% confidence level = 1.28
Upper confidence interval = 33.135
Lower confidence interval = 30.865
Population mean lies between [30.856, 33.135] at 80% confidence level.
Given confidence level = 90%
[tex]z^{*}[/tex] at 90% confidence level = 1.65
Upper confidence interval =33.456
Lower confidence interval = 30.543
Population mean lies between [30.543, 33.456] at 90% confidence level.
Given confidence level = 98%
[tex]z^{*}[/tex] at 98% confidence level = 1.65
Upper confidence interval = 34.06
Lower confidence interval = 29.94
Population mean lies between [29.94, 34.06] at 98% confidence level.
Learn more about confidence interval here
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A pair of flip flops is $30. How much will they cost after a 20% discount and 6.5% tax?
Answer:
$6.39
Step-by-step explanation
well, 20% of $30 is $6, so then you just have to add on the tax, which is 39 cents, coming to $6.39
Answer:
25.56
Step-by-step explanation:
30 divided by 4 is 6 so 30- 6=24
6.5% of 24=1.56 sooooo 24+1.56=25.56
Which line is perpendicular to 5y + 2x = 10?
2x + 5y = 10
10x - 4y = 8
y + 5x = -2
y = - 2x + 10
Choose the correct answer below.
O A. y = - 2x + 10
OB. 10x - 4y = 8
O C. y + 5x = -2
OD. 2x + 5y = 10
Austin plans to watch 2 movies each month. Write an equation to represent the total number of movies that he will watch in months.
Milo wants to put a fence around the dog park near his house. He measures the sides and finds they are 7 m and 8 m long. He multiplies 7×2 and 8×2 and finds he needs 30 m of fencing.
Which measurement does 30 m?
Choose 1 answer:
(Choice A)
Perimeter
(Choice B)
Length
(Choice C)
Area
Answer:
(Choice A) Perimeter
Step-by-step explanation:
It can't be the length, because it states in the question that the length is 7 m
and it can't be the area because lw = 7(8) = 56 is the area.
What is the answer for b, and why?
Which expressions are equivalent?
Answer:
choice 1) 1/5k - 2/3j and -2/3j + 1/5k
Step-by-step explanation:
Answer:
The first one
Step-by-step explanation:
THIS IS 7TH GRADE MATH SO ITS EASY
Answer:
b
Step-by-step explanation:
Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratios.
Which table shows the same data?
Answer:
It would be the second table
Step-by-step explanation:
If you look at the three points on the graph, (2,3) (4,6) (6,9), the should correspond or match with the x and y values in the table.
In the second table, the x values are 2, 4, and 6. the y values are 3, 6, and 9.
There are 12 cans of soup in a carton. Each can has a
diameter of 8 cm and a height of 9 cm. How much paper, to
the nearest square centimeter, is needed to make labels that
wrap around each of the 12 cans? (Assume there is no
overlap.)
Answer:
The required amount of paper is 2715.23 [tex]cm^{2}[/tex].
Step-by-step explanation:
The cans of soup has a shape of a cylinder, so that;
The surface area around a cylinder = 2[tex]\pi[/tex]rh
Where: r is the radius of the can, and h is its height.
From the given question, diameter = 8 cm, then;
radius = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{8}{2}[/tex]
r = 4 cm
Surface area around one of the cans = 2 x [tex]\frac{22}{7}[/tex] x 4 x 9
= 226.2857
Surface area around one of the cans = 226.28 [tex]cm^{2}[/tex]
So that, the total amount of paper required to make labels around each of the 12 cans can be determined by:
12 x 226.2857 = 2715.4284
The required amount of paper is 2715.23 [tex]cm^{2}[/tex].
please help me with this i really need help
Answer:
the boxes are this
top left: 9
top right is 7
bottom right is 9
Step-by-step explanation:
Please show your work because I have to also show my work.
Step-by-step explanation:
1. add the x's together so 5x
add the y's together which is 0
add the numbers together which it's 10
5x=10 x =2
plug 2 in either original equation and you get y=-2
Pastisch deposited 50000 at rate 4%
in saving account after 5 years he
withdrew Rs 10000 and total interest
of 5 year How long should he keep
the remaining amount to get total
interest of rs14800 fom the begining
Answer:
Intrest =P*R*T/100
[tex]50000 \times 4 \times 5 \div 100 \\ = 50 \times 5 \times 4 \\ = 250 \times 4 \\ = 1000[/tex]
AMOUNT AFTER 1 YEAR,
=50000 +1000
=51000
HE WITHDREW 10000
SO
51000-10000
41000
[tex]14800 \div 41000 \\ = 0.360[/tex]
Please help me with this assignment. Thank you!
Answer:
I hope this ans helps you
Can someone help me with this question plz.
How much wire is needed to fence a rectangular garden with measurements 20mmx25m
Answer:
500000mm
Step-by-step explanation:
First to have to convert the meters into millimeters (25mm×1000mm=25000mm) than you have to times the answer by 20 (25000mm×20mm=500000mm) and your answer is 500000mm
Mr. Bruce has some clay with a mass of 24 kilograms. If he puts the same amount of clay into 6 bags, how many grams of clay are in each bag? I NEED THE EXPLANATION
Answer:
4000grams in each bag
Step-by-step explanation:
Assume he put x amount of clay into each bag, he then put 6x into 6 bags.(since the question didn’t mention, I assume he put every clay he has into the bags)
6x=24kg
x=4kg
Since the question is asking for grams not kilograms:
4kg=4000g
what is the surface area of this rectangular prism with areas of a width of 8 m , 9 m, 6 m ?
Answer:
340 m²
Step-by-step explanation:
Just multiply each edge of the rectangular prism until you find the surface area of each side then add them together
blank plus 1/2 equals to 4/6
Answer:
The fraction in the blank is 1/6!
Step-by-step explanation:
First:
X + 1/2 = 4/6
-1/2. -1/2
4/6 - 1/2 = 1/6
X = 1/6
So the blank is 1/6
what are the features of the quadratic function f(×) =×2 +10×+21?
A is the correct answer
Or
Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of
symmetry is x = -5
Make a circle graph for each set of data.
Top 5 Countries With the Most Post Offices as of 2001
India
144,396
Russia
93,076
China
50,969
United States
39,270
Turkey
28,086
Source: Scholastic Kid’s Almanac
a.
A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
c.
A circle graph. India is about 40 percent; Russia, 15 percent; China, 30 percent; U S, 5 percent; Turkey, 8 percent.
b.
A circle graph. India is about 50 percent; Russia, 15 percent; China, 15 percent; U S, 10 percent; Turkey, 5 percent.
d.
A circle graph. India is about 35 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Step-by-step explanation:
edge 2021
The correct option is A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
We have given that,
Make a circle graph for each set of data.
Top 5 Countries With the Most Post Offices as of 2001
India 144,396
Russia 93,076
China 50,969
United States 39,270
Turkey 28,086
Source: Scholastic Kid’s Almanac
What is the circle graph?
A circle graph is the intersection graph of a set of chords of a circle. It is an undirected graph whose vertices can be associated.
The correct option is A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
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If f(x) = 3x + 5, find f(2).
f(2) = ?
Answer:
[tex]3 \times 2 + 5 = 6 + 5 = 11[/tex]
Find the missing angle
Answer:
Answer:[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]
80°+20°+missing angle=180°[ sum of interior angle of a triangle is 180°]
missing angle=180°+100=80°
is your answer
Find angle x to the nearest tenth.
47
73
78
A) 36.1
B) 66.2
C) 26.3
D) 31.6
Which expression is equivalent (With explanation)
Answer:
log_7(6)
Step-by-step explanation:
log_7(2)+log_7(3)
log_7(2×3)
log_7(6)
Which expressions are equivalent to -4(3d-2)-7
Answer:
C, none of the above
Step-by-step explanation:
-4(3d-2) after expression should be -12d+8 and then add -7, so combine like terms would be -12d+1, which is not the choice, so the answer is none of the above.
Answer:
The answer is C (none of the above)!
Step-by-step explanation:
Can this expression be simplified? If not, explain why. WILL MARK BRAINLIEST.
Answer:
yes
Step-by-step explanation:
see attached graph - there are two real roots for y=2x^4-6x^2+10x-7
so 2x^4-6x^2+10x-7 can be expressed as:
(x - root1)(x - root2)(2x^2+Bx+C)
Answer:
Yes, it can be.
Step-by-step explanation:
Using solver program, the expression 2x^4-6x^2+10x-7 has:
two real roots at x≈-2.3888 and x≈1.1424
and
two complex roots at x≈0.62321 - 0.94559 i and x≈0.62321 + 0.94559 i
Because it has two real roots, the expression can be simplified.