Answer:
Step-by-step explanation:
What are the answer options
Write an
explicit formula for An, the nth term of the sequence 48, 12, 3, ...
Answer:
Your answer is every number is divided by 4
Step-by-step explanation:
so for the 4th term it would be 3/4, then divide that by 4, and then divide that by 4, and so on and so forth.
Match the the statements written in English with the mathematical statements.
A is 4
B is 1
C is 5
D is 6
E is 2
F is 3
3350 5654 10.. can anyone guess the last two numbers?
a length of 25 meters.cindy cut the string in 4 pieces of equal length.how was each piece
Answer:
6.25 meters
Step-by-step explanation:
25/4 = 6.25
Length of each cut piece is 6.25 m.
What is division?The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
Given
A length of 25 meters cut the string in 4 pieces of equal length.
= [tex]\frac{25}{4}[/tex]
= 6.25
Length of each cut piece is 6.25 m.
Find more information about division here
https://brainly.com/question/5805897
#SPJ2
The measure of an angle is 152°. What is the measure of its supplementary angle?
Answer:
[tex]\huge{\boxed{\boxed{\tt { ⎆ Answer :- }}}} \ [/tex]
Supplementary angles form 180°.
One angle = 152°
Other angle = y°
[tex]152 + y = 180 \\ y = 180 - 152 \\ y = 28[/tex]
➳ The measure of its supplementary angle is 28°.
please help and hurry!
Answer:
a-16 and a half c-12
Step-by-step explanation:
The top of a 220 foot vertical tower is to be anchored by cables that make an angle with a measure of 53 degrees with the ground.
How long must each cable be?_____ feet
How far from the base of the tower should the anchors be placed? ____ feet
Answer:
175.70 ft, 291.95 ft
Step-by-step explanation:
First step is always a diagram, and writing out trig functions for reference:
SOH CAH TOA
First, solving for length of the cable, ie the hypotenuse:
sin53 = 220 / hyp
hyp sin53 = 220
hyp = 220 * sin53
hyp = 175.70 feet
Then, solving for the base length:
tan53 = 220 / adj
adj * tan53 = 220
adj = 220 * tan53
adj = 291.95 feet
A numerical pass code is required to open a car door. The pass code is five digits long and uses the digits 0–9. Numbers may be repeated in the pass code. How many different pass codes exist? 2995
Answer:
100 000 passcodes
Step-by-step explanation:
n = 10^5 = 100000
Hope this helps
If P = (5,4), find the image
of P under the following rotation.
180° counterclockwise about the origin
([?], [])
Enter the number that belongs in
the green box.
Answer:
[tex](-5,-4)[/tex]
Step-by-step explanation:
Given
[tex]P = (5,4)[/tex]
Rotation: 180 degrees counterclockwise
Required
P'
Rotation: 180 degrees counterclockwise
The rule is:
[tex](x,y) \to (-x,-y)[/tex]
So: [tex]P = (5,4)[/tex] becomes
[tex](5,4) \to (-5,-4)[/tex]
Answer quickly! It very urgent
Answer: Because the graphs of the two equations overlap each other
Step-by-step explanation:
Every point on the first line also satisfies the second equation.
This is the same as equivalent fractions
where 1/2 = 2/4 = 3/6 = 4/8
Graphing these on a number line would only show one dot.
on a test of 80 problems, Bill got 75% of the problema correct.
How many did he get correct?
Answer:
60 problems
Step-by-step explanation:
Find how many he got correct by multiplying 80 by 0.75:
80(0.75)
= 60
So, Bill got 60 problems correct
I don’t understand how to solve this. Please explain the steps. Thanks.
Answer:
D
Step-by-step explanation:
When you are raising something to a fractional power, you are raising it to the power of the numerator and finding the root denoted by the denominator. The explanation above is kinda confusing, so here is an example:
x^(3/5)
This would be written as:
[tex]\sqrt[5]{x^3}[/tex]
Now for the actual problem. Since the numerator is 4, we start by raising x to the 4th power, x^4.
Because the denominator is 5, we find the 5th root:
[tex]\sqrt[5]{x^4}[/tex]
This matches none of the answers shown, so the answer is none of the above or D.
Answer:
D
Step-by-step explanation:
The answer would be 5 square root x^4
See Image Below:)
Find the length of missing side BC and AC.
Best answer gets brainliest!!!
Answer:
b = 7.56
C = 9.24
Step-by-step explanation:
Find the last angle of the triangle.
The sum of all the angles in a triangle is
180 degrees.
A+
90+55=180
A=35
Then find c
The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.
cos(B)=adj/hyp or Cos(55) = 5.3 / c
re write as
C = 5.3 / cos55
This gives you c = 9.24
Then use the Pythagorean theorem to find the unknown side.
[tex]a^{2} +b^{2} = c^{2} \\rewrite as\\ b^{2} = c^{2} - a^{2} \\b^{2} = 9.2^{2} - 5.3^{2} \\b^{2} = 57.29\\b = 7.56[/tex]
The figure shows a right triangle RQT with
mZQRT = 50°. It is attached to rectangle
PQRS, where PT = 84 cm and SR = 56 cm.
Find
a) QT
b) RQ
c) RT
d) SP
e) m angle T
Answer:
QT 28 RQ 50 RT SP50 i belive
Step-by-step explanation:
There are 14 fish in the fish tank. Five-sevenths of
them are goldfish. How many goldfish are in the
tank?
Answer:
10
Step-by-step explanation:
A new test is developed to test for organic matter in soil samples, giving "positive" or "negative" results to indicate that a sample does or does not contain organic matter.
For a soil sample that contains organic matter, the test will give a positive result 95% of the time and a negative result (false negative) 5% of the time. For a soil sample that does not contain organic matter, the test will give a positive result (false positive) 20% of the time and a negative result 80% of the time.
A study included a population of 1,000 soil samples, and 70% of those studied where known to contain organic matter.
Fill in the missing values in the table and statement below. If necessary, round the percentage to one decimal place.
Number of
Samples Positive
Result Negative
Result
Contains
Organic Matter 700 665
Does Not Contain
Organic Matter 300
240
If a soil sample test gives a positive result, it is
% likely that the soil sample contains organic matter.
Answer:
[tex]\begin{array}{cccc}{} & {Samples} & {Positive} & {Negative} & {Contains\ Organic\ Matter} & {700} & {665} & {[35 ]} & {Does\ not\ contain\ organic\ matter} & {300} & {[60]} & {240} \ \end{array}[/tex]
[tex]\% Pr= 95\%[/tex]
Step-by-step explanation:
Given
[tex]\begin{array}{cccc}{} & {Samples} & {Positive} & {Negative} & {Contains\ Organic\ Matter} & {700} & {665} & {[\ ]} & {Does\ not\ contain\ organic\ matter} & {300} & {[\ ]} & {240} \ \end{array}[/tex]
Solving (a): Complete the table
The sum of each row must equal to the samples.
i.e.
[tex]Positive + Negative = Samples[/tex]
For the samples that contain organic matter, we have:
[tex]665 + Negative = 700[/tex]
Collect like terms
[tex]Negative = 700 - 665[/tex]
[tex]Negative = 35[/tex]
For the samples that do not contain organic matter, we have:
[tex]Positive + 240 = 300[/tex]
Collect like terms
[tex]Positive = 300 -240[/tex]
[tex]Positive = 60[/tex]
So, the complete table is:
[tex]\begin{array}{cccc}{} & {Samples} & {Positive} & {Negative} & {Contains\ Organic\ Matter} & {700} & {665} & {[35 ]} & {Does\ not\ contain\ organic\ matter} & {300} & {[60]} & {240} \ \end{array}[/tex]
Solving (b): Proportion of samples that are positive if the sample contains organic matter
From the table, we have:
[tex]Samples = 700[/tex]
[tex]Contains\ Organic\ Matter\ n\ Positive = 665[/tex]
So, the percentage is:
[tex]\%Pr = \frac{Contains\ Organic\ Matter\ n\ Positive}{Samples} * 100\%[/tex]
[tex]\% Pr= \frac{665}{700} * 100\%[/tex]
[tex]\% Pr= \frac{665* 100}{700} \%[/tex]
[tex]\% Pr= \frac{66500}{700} \%[/tex]
[tex]\% Pr= 95\%[/tex]
Answer:
35, 60, 95%
Step-by-step explanation:
correct
8
4
A gold bar is similar in shape to a rectangular prism. A gold bar is
7 1
approximately 7 in.x3 in.x1 in. If the value of gold is $1,214 per ounce,
about how much is one gold bar worth? Use the formula w 11.15n, where w
is the weight in ounces and n=volume in cubic inches, to find the weight in
ounces. Explain how you found your answer.
Answer:
[tex]Worth = \$284258.1[/tex]
Step-by-step explanation:
Given
[tex]Dimension: 7in\ * 3in\ * 1in[/tex]
[tex]Value = \$1214/oz[/tex] ---- value of Gold
Required
The worth of 1 gold bar
First, calculate the volume (n) of the gold bar
[tex]n = 7in * 3in * 1in[/tex]
[tex]n = 21in^3[/tex]
Next, calculate the weight of the gold bar using:
[tex]w = 11.15n[/tex]
[tex]w = 11.15 * 21[/tex]
[tex]w = 234.15oz[/tex]
Multiply the value of Gold by the weight of the gold bar to get the worth of the gold bar.
[tex]Worth =Value * w[/tex]
This gives:
[tex]Worth = \$1214/oz * 234.15oz[/tex]
[tex]Worth = \$1214 * 234.15[/tex]
[tex]Worth = \$284258.1[/tex]
A research firm tests the miles-per-gallon characteristics of three brands of gasoline. Because of different gasoline performance characteristics in different brands of automobile, five brands of automobiles are selected and treated as blocks in the experiment; that is, each brand of automobile is tested with each type of gasoline. The results of the experiment (in miles per gallon) follow.
Gasoline Brands
Automobiles I II III
A 18 21 20
B 24 26 27
C 30 29 34
D 22 25 24
E 20 23 24
A.) At ? = .05, is there a significant difference in the mean miles-per-gallon characteristics of the three brands of gasoline?
B.) Analyze the experimental data using the ANOVA procedure for completely randomized designs. Compare your findings with those obtained in part (A). what is the advantage of attempting to remove the block effect?
Answer:
A.) At α = 0.05, is there a significant difference in the mean miles-per-gallon characteristics of the three brands of gasoline.
B.)The advantage of attempting to remove the block effect is
The completely randomized designs does not prove that H0 is incorrect only that it cannot be rejected.
Step-by-step explanation:
Using Two-way ANOVA method
Given problem
Observation I II III Row total (xr)
A 18 21 20 59
B 24 26 27 77
C 30 29 34 93
D 22 25 24 71
E 20 23 24 63
Col total (xc) 114 124 129 367
∑x²=9233→(A)
∑x²c/r
=1/5(114²+124²+129²)
=1/5(12996+15376+16641)
=1/5(45013)
=9002.6→(B)
∑x²r/c
=1/3(59²+77²+93²+71²+67²)
=1/3(3481+5929+8649+5041+4489)
=1/3(27589)
=9196.3333→(C)
(∑x)²/n
=(367)²/15
=134689/15
=8979.2667→(D)
Sum of squares total
SST=∑x²-(∑x)²/n
=(A)-(D)
=9233-8979.2667
=253.7333
Sum of squares between rows
SSR=∑x²r/c-(∑x)²/n
=(C)-(D)
=9196.3333-8979.2667
=217.0667
Sum of squares between columns
SSC=∑x²c/r-(∑x)²/n
=(B)-(D)
=9002.6-8979.2667
=23.3333
Sum of squares Error (residual)
SSE=SST-SSR-SSC
=253.7333-217.0667-23.3333
=13.3333
ANOVA table
Source Sums Degrees Mean Squares
of Variation of Squares of freedom
SS DF MS F p-value
B/ w SSR=217.0667 4 MSR=54.2667 32.56 0.0001
rows
B/w SSC=23.3333 c-1=2 MSC=11.6667 7 0.01
columns
Error (residual)SSE=13.3333 (r-1)(c-1)=8 MSE=1.6667
Total SST=253.7333 rc-1=14
Conclusion:
1. F for between Rows
The critical region for F(4,8) at 0.05 level of significance=3.8379
The calculated F for Rows=32.56>3.8379
Therefore H0 is rejected
2. F for between Columns
The critical region for F(2,8) at 0.05 level of significance=4.459
We see that the calculated F for Colums=7>4.459
therefore H0 is rejected,and concluded that there is significant differentiating between columns
Part B:
To analyze the data for completely randomized designs click on anova two factor without replication in the data analysis dialog box of the excel spreadsheet.
The following table is obtained
Source DF Sum Mean F Statistic
(df1,df2) of Square (SS) Square (MS) P-value
Factor A 1 1496.5444 1496.5444 769.6514 0.001297
Rows
Factor B - 2 19.4444 9.7222 5 0.1667
Columns
Interaction
AB 2 3.8889 1.9444 0.1013 0.9045
Error 12 230.4 19.2
Total 17 1750.2778 102.9575
Factor - A- Rows
Since p-value < α, H0 is rejected.
Factor - B- Columns
Since p-value > α, H0 can not be rejected.
The averages of all groups assume to be equal.
Interaction AB
Since p-value > α, H0 can not be rejected.
The advantage of attempting to remove the block effect is
The completely randomized designs does not prove that H0 is incorrect only that it cannot be rejected.
NO LINKS!!!! Find each measurement indicated. Round your answer to the nearest tenth. Part 2c
9514 1404 393
Answer:
BC = 24.0AC = 26.0m∠B = 73.4°m∠B = 30.0°Step-by-step explanation:
The law of sines tells you the ratio of sides is the same as the ratio of sines of their opposite angles.
This post has 2 kinds of problems.
1) 2 angles and the side between them are given.
2) 2 sides and the angle opposite the longest is given.
For the first type, you need to determine the missing angle (opposite the given side). That comes from the sum of angles of a triangle being 180°. Then you find the remaining sides using the ratio of sines.
For the second type, the angle opposite the shorter side is found using the ratio of sides to find the sine of that angle. Then the third side and third angle can be found using the ratio of sides to find the sine of the angle, and using the ratio of sines to find the missing side.
Straightforward, and tedious. For more than one, I like to use a spreadsheet to crunch the numbers.
_____
1) BC = 24.0
2) AC = 26.0
3) m∠B = 73.4°
4) m∠B = 30.0°
__
In the spreadsheet, the given values are in the first 3 columns. The 4th column is the first one calculated. As indicated above, the angle calculation for problems 1 and 2 uses the sum of angles relation. For problems 1 and 2, this is the angle opposite the given side. The "first side" is the side opposite the "first angle". c = b·sin(C)/sin(B), for example.
For problems 3 and 4, the first unknown angle is the one opposite the "short side", which is the shorter of the given sides. As it happens, this is the side that is asked for in the question. B = arcsin(c·sin(B)/sin(C))
_____
Additional comment
In a spreadsheet, angles are presumed to be in radians for all of the trig functions. We use the DEGREES( ) and RADIANS( ) functions to convert as appropriate.
Complete the ordered pair so it is a solution of 3x+2y=36. (6, )
Answer:
9
Step-by-step explanation:
Plug in 6 to x, since this is the x-value in the ordered pair.
[tex]3(6)+2y=36\\18+2y=36\\2y=18\\y=9[/tex]
Answer:
(6, 9)
Step-by-step explanation:
3x + 2y = 36
Substitute 6 into the equation to get the output.
3(6) + 2y = 36
Multiply 3 and 6.
18 + 2y = 36
Subtract 18 from both sides.
2y = 18
Divide both sides by 2.
y = 9
The ordered pair when x = 6 is
(6, 9)
If f(x) = x - 9 and g(x) = -6x - 3,
which statement is true?
Click on the correct answer.
-1 is in the domain of fºg.
-1 is not in the domain of fºg.
9514 1404 393
Answer:
-1 is in the domain of fºg
Step-by-step explanation:
Both functions are odd-degree polynomials (as written here), so both functions have a domain and range of "all real numbers."
-1 is in the domain of f(g(x))
40 points! Determine the area of the figure below round to the nearest hundredth
Answer: 60 + 13 sqrt 10
the top part adds up to 10 and the bottom part is 13
so you get a 7-3-2 sqrt 10 triangle to the left
the area of that is 3 sqrt 10
the area of the leftmost rectangle is 5 * 2sqrt 10 which is 10 sqrt 10
the area of the big vertical rectangle is 5*12 which is 60
so you add them up
60 + 13 sqrt 10
UYK
♡ The size of a rhombus is half the longer diagonal.
The height of the ronbus is 3cm
and
the area is 21cm². Find the length of the longer
diagonal
Answer:
Step-by-step explanation:
Area = height × side
21 = 3 * side
side = 7 cm
The side of a rhombus is half the longer diagonal
longer diagonal = 2*side =2*7=14cm
30 points!!! Please help!!! This really affects my grade! I need a final answer not a guess. Thank you very much. I really appreciate it. Links will be reported!
sujan collected data on the ages of 11 young People
who visited Bharaztpar.
Age. l frequency
1-5. l 3
6-10. l 3
11-15. l 3
16-20. I 3
calculate ah estimate for the mean age of visitors
Note: Round your answer zo the nearest whole number
Answer:
10.5
Step-by-step explanation:
Given the data:
Age. l frequency
1-5. l 3
6-10. l 3
11-15. l 3
16-20. I 3
Mean :
Σfx / Σf
Obtain the midpoint (x) = (upper + lower boundary) / 2
Hence, midpoint x :
Age. l frequency | x
1-5. l 3 | 3
6-10. l 3 | 8
11-15. l 3 | 13
16-20. I 3 | 18
Σfx = (3*3) + (3*8) + (3*13) + (3*18) = 126
Σf = (3 + 3 + 3 + 3) = 12
Mean = Σfx / Σf = 126 / 12 = 10.5
Need help ASAP. Don’t understand how to do this
Answer:
0.088
Step-by-step explanation:
Given two cylinders
Volume of one = 64cm^3
Volume of the other = 729cm^2
Scale factor = Volume of the small/Volume of the large
Scale factor = 64:729
Scale factor = 0.087
help what's 1x1+9x20
Answer:
The answer is 181
Step-by-step explanation:
PEDMAS
1 x 1 + 9 x 20
1 x 1 = 1
1 + 9 x 20
9 x 20= 180
1+180
which equals 181
Answer:
181
Step-by-step explanation:1x1=1 9x20=180+1=181
Thats your answer my fellow brains
Help with this question!Please
Answer:
x = 14 for the first one, x = 60 for the second one
Step-by-step explanation:
Step-by-step explanation:
We know the measure of a straight line is 180° . So that ,
> 5x - 10 + 120 = 180
> 5x = 60 + 10
> 5x = 70
> x = 70/5
> x = 14
Solution 2 :-
> x + 50 + 70 = 180
> x = 180 - 120
> x = 60
what is matter and it function
Answer:
In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume.
Step-by-step explanation:
In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume.
ANSWER FAST I JUST NEED ANSWER
Answer:
EDITED
I think 18