Answers
Answer:Wx = − 50 m 2 l 2 t e 2 r s
Step-by-step explanation:
Related Questions
27
6 boys have a mean age of 10 years.
14 girls have a mean age of 5 years.
Work out the mean age of all 20 children.
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not clear way ..... clear it
15 divided by 2 = 7.5
What equals 3 3/4 + 1 1/4
Answers
^ the answer is 5
Answer:
The answer is 5.
Step-by-step explanation:
Convert your mixed numbers to fractions.
Then your initial equation becomes:
15 5/4 + 5/4
Now you apply the fraction formulas for addition.
(15x4)+(5x4)
_________
4x4
60+20
____
16
= 80/16
Then we simplify and we have 5.
What is the range of the relation below?
{(-4,1), (-2,0), (8, -1)}
Answers
Answer:
Range: {-1, 0, 1}
General Formulas and Concepts:
Math
Number LineAlgebra I
Range is the set of y-values that are outputted by function f(x){Set Builder Notation}Step-by-step explanation:
Step 1: Define
[Relation] {(-4, 1), (-2, 0), (8, -1)}
Step 2: Identify
According to the relation, our y-values are 1, 0, and -1. These values would encompass our range.
What is a three digit number that is divisible by 2,3,5,6,10 
I’ve been here for 1 hour it’s embarrassing please help
Answers
1800÷ 2 = 900 ✅
1800 ÷ 3 = 600 ✅
1800 ÷ 5 = 360 ✅
1800 ÷ 6 = 300 ✅
1800 ÷ 10 = 180 ✅
Any help would be nice
Answers
Hope this helps! Good luck!
Answer:
<CPB
Step-by-step explanation:
Because the rest make obtuse angles or a right angle, only angle CPB is less than 90 degrees.
Eight notebooks cost $10. At this rate, how much would 12 notebooks cost?
Answers
Each notebook it’s 1.25 so if u times 1.25 by 12 u get 15 dollars
I will give brainliest please help and explain, I forget how to do this.
Answers
Answer:
I need more context then that but if its simply measured thats about an inch
Step-by-step explanation:
Answer:
1) measure of each ∡ = 120°
2) sum of all exterior angles = 360°
Step-by-step explanation:
1) if this hexagon is 'regular' (meaning all sides and angles have the same measure) then you can divide the total sum (720°) by 6 to get 120°
The formula to find the total sum of interior ∡'s is (n-2)·180 where 'n' is the number of sides
2) the sum of all exterior angles for any polygon is always 360°
Determine the solution to 8x = 32 that makes the equation true.
Answers
Answer:
4
Step-by-step explanation:
8x=32
x = 4
real answer or i will report you if you give me a right aswer i will give brainest
Answers
Answer:
0 and the second one
Step-by-step explanation:
integers are whole numbers they are NOT a fraction
Answer:
0, 21/7
Step-by-step explanation:
fraction is not an integer so is square root
and 10^-1 is 0.1 which is not a integer
FACTOR the expression 6x+3y-12 using the greatest common multiple.
Include Parentheses: ()
No spaces!
Put the multiple outside, to the left of the parentheses! Combine like terms and simplify the expression: -2+6x+4+4x
Answers
Answer:
Step-by-step explanation:
For 6x+3y-12 the greatest common factor is 3 so
3(2x+y-4)
For -2+6x+4+4x
10x+2 and 2 is greatest common factor so
2(5x+1)
Which expression has the greatest value?
A: -2 x -2 divided by 1/2
B: -2 x -1/2 divided by 2
C: -2 x 1/2 divided by 1/2
D: -2 x 2 divided by 2
Answers
Answer:
A. -2 × -2 divided by 1/2
Step-by-step explanation:
-2 × -2 ÷ 1/2 =8
What is the value of t in the following equation?
Kaitlyn buys 3 T-shirts for $14.95 each. What is the total cost
Answers
Answer: $44.85
Step-by-step explanation:
$14.95x3
A sportswriter wishes to see if a football filled with helium travels farther, on average, than a football filled with air. To test this hypothesis, the writer uses 18 male subjects, randomly divided into two groups of 9 subjects each. Group 1 kicks a football filled with helium to the recommended pressure, while Group 2 kicks a football filled with air to the same pressure. The sample mean yardage for Group 1 was barx2 = 30 yards with a standard deviation of s1 = 8 yards. The mean yardage for Group 2 was barx2 = 25 yards with a standard deviation of s2 = 6 yards. Assume that the two groups of kicks are independent. Let μ1 and μ2 represent the mean yardage we would observe for the entire population represented by the volunteers if all members of this population kicked, respectively, a helium-filled football and an air-filled football. Let σ1 and σ2 be the corresponding population standard deviations. Assuming two-sample t procedures are safe to use, what is a 99% confidence interval for μ1 – μ2?
A) 4 ± 7.7 yards.B) 4 ± 11.2 yards.C) 4 ± 4.7 yards.D) 4 ± 6.2 yards.
Answers
Answer:
5 ± 9.74
Step-by-step explanation:
Confidence interval, two - sample, t procedure ;
μ1 - μ2 = (x1 - x2) ± Tcritical*S
S = sqrt[(s1²/n1) + (s2²/n2)]
n1 = 9 ; n2 = 9 ; s1 = 8 ; s2 = 6 ; x1 = 30 ; x2 = 25
S = sqrt[(8^2/9) + (6^2/9)]
S = sqrt[11.111111]
S = 3.333
Tcritical at 99% confidence interval
df = 18 - 2= 16
Tcritical = 2.92
(30 - 25) ± 2.92*(3.333)
5 ± 9.74
In chemistry you need to dilute an alcohol solution down. You have a 90% alcohol solution and a 20% alcohol solution. If you want to end up with 335L of 50% alcohol, how much of each do you need?
Answers
Answer:
143.715 liters of 90% alcohol and 191.285 liters of 20% alcohol must be used to achieve 335 liters of 50% alcohol.
Step-by-step explanation:
Since I need to dilute an alcohol solution down, and I have a 90% alcohol solution and a 20% alcohol solution, if I want to end up with 335L of 50% alcohol, to determine how much of each do I need to be perform the following calculation:
100 x 0.9 + 0 x 0.2 = 90
90 x 0.9 + 10 x 0.2 = 83
80 x 0.9 + 20 x 0.2 = 76
70 x 0.9 + 30 x 0.2 = 69
60 x 0.9 + 40 x 0.2 = 62
50 x 0.9 + 50 x 0.2 = 55
40 x 0.9 + 60 x 0.2 = 48
42 x 0.9 + 58 x 0.2 = 49.4
43 x 0.9 + 57 x 0.2 = 50.1
42.9 x 0.9 + 57.1 x 0.2 = 50
335 x 42.9 / 100 = 143.715
335 - 143,715 = 191,285
Thus, 143.715 liters of 90% alcohol and 191.285 liters of 20% alcohol must be used to achieve 335 liters of 50% alcohol.
In the following problem, Emily tried to calculate EG. However, she has made a mistake in her work. You need to identify and explain the mistake. Then, you must provide the correct solution.
Answers
Answer:
x = 66
Step-by-step explanation:
Emily's mistake is that part of the line is only x - 6, but she put 6x - 6
The first 6 shouldn't be there.
x - 6 = 72
x = 66
The actual correct answer is:
x = 78
Step-by-step explanation:
Although the explanation above is correct, the answer is wrong. It's not 66 because you are subtracting 6 from x. This means x needs to be 6 above 72.
Here is my step-by-step solution:
x - 6 = 72 <-- Given; Corrected Equation
x - 6 + 6 = 72 + 6 <-- Addition Property of Equality
x = 78 <-- Result from Solution
Pleaseeeeee helpppppppppp
Answers
Answer:
19.2 Cubed Cm.
Step-by-step explanation:
I think this would be the asnwer bceause the formula is volume = base times the height which is 3 times 6.4 in yoru case which is 19.2 cubed cm.
The amount of a radioactive substance remaining as it decays over time is A = A0(0.5)t/h ,where a represents the final amount
Ao represents the original amount, t represents the number of years, and h represents the half-life of the sibstance.
The half-life of the radioactive isotope carbon-14 is 5,730 years. Approximately how many years will it take a 50-gram mass of
carbon-14 to decay to 5 grams?
Answers
Ao represents the original amount, t represents the number of years, and h represents the half-life of the sibstance.
The half-life of the radioactive isotope carbon-14 is 5,730 years. Approximately how many years will it take a 50-gram mass of
carbon-14 to decay to 5 grams?
Carbon-14 will take 19,035 years to decay to 10 per cent.
What is the time of decay?
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay.
An exponential decay can be described by the following formula:
[tex]N(t)=N_oe^{-\lambda t}[/tex]
Where:
No = The quantity of the substance that will decay.
N(t) = The quantity that still remains and has not yet decayed after a time t
[tex]\lambda[/tex] = The decay constant.
One important parameter related to radioactive decay is the half-life:
[tex]t_{1/2}=\dfrac{Ln(2)}{\lambda}[/tex]
If we know the value of the half-life, we can calculate the decay constant:
[tex]\lambda =\dfrac{ln(2)}{t_{1/2}}[/tex]
Carbon-14 has a half-life of 5,730 years, thus:
[tex]\lambda =\dfrac{ln(2)}{5730}[/tex]
[tex]\lambda[/tex] = 0.00012097
The equation of the remaining quantity of Carbon-14 is:
[tex]N(t)=N_oe^{-0.00012097t}[/tex]
We need to calculate the time required for the original amount to reach 10%, thus N(t)=0.10No
[tex]0.10N_o=-N_oe^{-0.00012097t}[/tex]
Simplifying:
[tex]0.10=e^{0.00012097t}[/tex]
Taking logarithms:
ln(0.10) = -0.00012097t
Solving for t:
[tex]t=\dfrac{Log0.10}{-0.00012097}[/tex]
t = 19035 years
Carbon-14 will take 19,035 years to decay to 10 per cent.
To know more about decay follow
https://brainly.com/question/25537936
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A farmer has harvested 1.6 tons of sweet potatoes from one-quarter of an
acre. How many tons will he harvest from one acre
Answers
Answer: there is no pic
Step-by-step explanation:
Answer:
6.4 tons
Step-by-step explanation:
The area of the missing face is
Answers
Explanation:
A = 108
What is a chi-squared test?
Answers
Answer:
A chi-squared test, also written as χ² test, is a statistical hypothesis test that is valid to perform when the test statistic is chi-squared distributed under the null hypothesis, specifically Pearson's chi-squared test and variants thereof.
I hope it's helpful!
Answer the questions please I would appreciate it only if you know the answer please
Answers
Answer:
1. 370, 670 - 300 = 370
2. 123.3%, 670 - 300 / 300 x 100 = 123.3%
3. 14.7%, 47.2 - 32.5 = 14.7%
7.
Mr. Aamodt bought a new lawn tractor for $3,350.
a.
The state sales tax on the lawn tractor purchase will be 6.5%. How much state
sales tax will Mr. Aamodt pay on the tractor? (2 points)
b.
Mr. Aamodt has applied for a 2-year loan at the bank for $3,350 to pay for
the new lawn tractor. The bank will charge him 8.4% simple interest on the
loan. What amount of interest will Mr. Aamodt pay on the loan? (2 points)
C.
What is the total cost of Mr. Aamodt's new lawn tractor, including the purchase
price, the loan interest, and the sales tax? (2 points)
Answers
Answer:
7. Mister as an umbrella a new lawn tractor for 3035 $0 a the state sales tax the lawn tractor purchase will be 6. 5% how much states sells tax will mr. pay for the tractor two points? mister I can apply for 2 years loan for the bank for new tra
Evaluate: 63 + 7 X 4
Answers
Answer:
91
Step-by-step explanation:
Multiplication first, so 7x4 = 28
28+63=91
Answer:
91
Step-by-step explanation:
multiply the numbers
7×4=28
63+28=91
add the numbers
91
is x=5 a solution to the equation 3b+3=38
yes or no
Answers
Answer:
no
Step-by-step explanation:
substitute b with 5
3(5)+3=38
Multiply
15+3=38
Add
it does not equal up
18=38
Answer:
yes Hgggggggggf the centergegge-eghrhtrhhhghgebbgegebeeebbe
two number are in the ratio 5:6 if sum of three number is 132 . find the number.
Answers
I hope this help you
.........
15) Max has his eye on a new pair of sneakers that cost $120. He decided
he would not purchase the shoes until there was at least a 30% discount.
What was the cost Max was willing to pay for the sneakers?
Answers
Will someone help me please)
Answers
To find the area of a triangle, you can use the expression b × h ÷ 2, where b is the base of the triangle and h is its height. What is the area of a triangle with a base of 6 centimeters and a height of 8 centimeters?
Answers
Answer:
Step-by-step explanation:
½×6×8 = 24 cm²
Find the value of y.
Answers
Answer:
y = 6
Step-by-step explanation:
This is a special right triangle with angle measures 90° 60° 30°
the side length that sees angle measure 30 is represented with x
the side length that sees angle measure 90 is represented with 2x
and the side length that sees angle measure 60 is represented with x√3
the side length that sees angle measure 90 is given as 4√3 which means 2x = 4√3 divide both sides by 2
x = 2√3 now to find y, we need to multiply this value by √3
2√3 × √3 = 2 × 3
Matteo wants to write a statement that can be represented by the inequality p less-than 9. Which describes the correct method to write a statement to match this inequality?
Use the inequality symbol to determine the relationship between the variable and the constant. Decide what the variable will represent. Decide what the constant will represent. Write a statement using the same relationship. An example is “Alva spent more than $9.”
Decide what the variable will represent. Decide what the constant will represent. Write a statement using the same relationship. An example is “Alva spent less than $9.” Use the inequality symbol to determine the relationship between the variable and the constant.
Decide what the variable will represent. Decide what the constant will represent. Use the inequality symbol to determine the relationship between the variable and the constant. Write a statement using the same relationship. An example is “Alva spent less than $9.”
Decide what the variable will represent. Decide what the constant will represent. Use the inequality symbol to determine the relationship between the variable and the constant. Write a statement using the same relationship. An example is “Alva spent more than $9.”
Answers
Answer:C
Step-by-step explanation:
On edgeinuety
Answer:
It is indeed C.
Step-by-step explanation: