Answer:
20.25
Step-by-step explanation:
21-3/4=20.25
Answer:
Step-by-step explanation:
a+b=21
a=21-b
b=3/4*a
b=3/4*(21-b)
b=3(21-b)/4
b=63-3b/4
4*b=63-3b
4b+3b=63
7b=63
b=63/7
b=9
The volume of a gas held at constant temperature varies inversely with the pressure of the gas. If the volume of the gas is 1200 cubic centimeters then the pressure is 200 millimeters of mercury, what is the volume when the pressure is 800 ml?
Answer:
300
Step-by-step explanation:
The volume of the gas varies inversely as the pressure
V= k/p
K= VP
= 1200×200
= 240,000
Therefore the volume when the pressure is 800
K= VP
240000= V×800
V= 240000/800
= 300
Hence the volume is 300 cubic centimeters
help me plsssssssssssss
Answer:
do you still need help
Step-by-step explanation:
???
a dime is dropped from a building at 1.024 ft . if the equation for height as a function of time is h(t)=-16t^2+ initial height where is t is time in seconds and h(t) is height in feet, how many seconds will it take for the dime to hit the ground?
Answer:
The dime hits the ground after 8 sec.
Step-by-step explanation:
Set h(t) = -16t^2 + h(0) equal to 0: -16t^2 + 1,024 ft = 0, or:
16t^2 = 1,024 ft, or:
t^2 = 64 ft^2
Then t = +8 sec
The dime hits the ground after 8 sec.
1/7h=3
What is the value of h in the equation?
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{\dfrac{1}{7}h= 3}[/tex]
[tex]\large\text{MULTIPLY 7 to BOTH SIDES}[/tex]
[tex]\mathsf{7\times\dfrac{1}{7}h = 7\times3}[/tex]
[tex]\rm{CANCEL: 7\times\dfrac{1}{7}\ because\ that\ gives\ you\ 1}[/tex]
[tex]\rm{KEEP: 7\times3\ because\ that\ gives\ you\ the\ h-value}[/tex]
[tex]\larg\text{TEMPORARY new EQUATION: }\mathsf{7\times3=\bf h}[/tex]
[tex]\mathsf{7\times3=h}[/tex]
[tex]\mathsf{7\times3=\bf 21}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf h = 21}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
PLEASE HELPP!!! NO FLIE OR LINKS
decide whether each is a rhombus, rectangle, square, none of these, or all of these
Answer:
The first one is a square! The second is none of these because its a trapezoid
Step-by-step explanation:
Answer:
7. all of the above
9. none of these
Step-by-step explanation:
graph number 7
you will see from the diagonal test that the diagonals of this shape are congruent. All four angles in the interior are congruent making it a rhombus. The outside side lengths are all equal to 6.71. Making it a rectangle. The definition of a square is if it is both a rectangle and a rhombus then it is a square.
graph number 9
you can plainly see that this is a trapazoid which is none of either of these choices.
hope this helps.
25 POINTS!!!!!!
ANSWER THE QUESTION BELOW
Explain how decisions are a combination of theoretical, experimental, and subjective probability
Answer:
Decisions help know what you believe in and in what you trust. It also expirements many new things. Some decisions end up being good one and correct ones.
Please help me!!!! I have been stuck on this question for like a half an hour now.
Help me solve this! |2x-8|+4>-3
Answer:
true for all x
Step-by-step explanation:
|2x-8|+4>-3
Subtract 4 from each side
|2x-8|+4-4>-3-4
|2x-8|>-7
An absolute value is always positive so this is true for all x
This equation shows how the cost of renting a moving van depends on how many hours it is rented for. c = 5h; The variable h represents the number of hours the moving van is rented for, and the variable c represents the cost in dollars. If a moving van is rented for 3 hours, what is the cost?
need help ^_^
Answer:
3/5 c
Step-by-step explanation:
_________________
Find the value of X.
Answer:
x = 34
Step-by-step explanation:
Angle Formed by Two Secants= 1/2(DIFFERENCE of Intercepted Arcs)
x = 1/2(100-32)
x = 1/2 (68)
x =34
ILL MARK BRAINLIEST 15 PTS!!! HURRY
If the function rule is to multiply by 4, and there is an output value of 8, what is the input value?
16
02
08
O 32
Answer:
02
Step-by-step explanation:
Answer:
Input Value = 02
Step-by-step explanation:
2 multiplied by 4 is 8.
You could also divide 8 by 4 to get 2 to check your work.
Samar gets Rs 150 as pocket money per month. On his 15th birthday, his father increased it by 20%. How much more money will he get every month now? A
Answer:
180
Step-by-step explanation:
150/100*20=30 +150=180
Adam wants to save as much money as he can in one month. He started with -$2 in his bank account at the beginning of the month and he put $3 each day into the savings account.
If you flew 8000 miles in 20 hours what was your unit rate
Answer:
400 miles per hour
Step-by-step explanation:
8000 miles ÷ 20 = 400 Miles
20 hours ÷ 20 = 1 hour
What is a formula for the nth term of the given sequence? 300, 180, 108...
Answer:
Step-by-step explanation:
The common ratio of the terms is 0.6 (180/300=6/10;108/180=6/10). This is a geometric sequence .
nth term=500(0.6)^n-1
What is the value of (7 – 3i)(6 + i)?
A. 42 – 141
B. 45 – 11i
OC. 45 – 25i
D. 42 - 28i
100 points giving brainly
please helppp!!
For the equation y = 3x – 6 Complete the table for the x values given.
Answer:
Step-by-step explanation:
y = 3x -6
x = -2, y = -12
x = -1, y = -9
x = 0, y = -6
x = 1, y = -3
x = 2, y = 0
x= 3, y = 3
x -2 -1 0 1 2 3
y -12 -9 -6 -3 0 3
f is inversely proportional to √ g . When f = 8 , g = 25 Work out f when g = 16
f is inversely proportional to √ g . When f = 8 , g = 25 Work out f when g = 16
ANSWER :By question , f is inversely proportional to square root of g. In mathematical form ,
[tex]\implies f \propto \dfrac{1}{\sqrt g}[/tex]
Let k be constant . So that ,
[tex]\implies f =k \dfrac{1}{\sqrt g}[/tex]
When f = 8 , g is 25. So that ,
[tex]\implies 8= k\dfrac{1}{\sqrt {85}}[/tex]
[tex]\implies k = 8\sqrt{25} [/tex]
Hence the value of constant is 8√25.
So that when g is 16 ,
[tex]\implies f = 8\sqrt{25} \times 1/ \sqrt{16}\\\\\implies f = 8*5 / 4 \\\\\implies \boxed{ f = 10 } [/tex]
Hence the Value of f is 10 .
Find the greatest common factor of 12x and 15x^3”.
Select all of the expressions that are equal to 8 x 35
Answer:
What expressions?
Step-by-step explanation:
a) Find the value of 2x + y when x = 4 and y = 3
b) Find the value of a^2 + b when a = -2 and b = 5
A website 500,000 members in 2010. The number y of members increases by 15% each year. Write an exponential growth function that represents the website membership t years after 2010. How many members will there be in 2016? Round your answer to the nearest ten thousands
Answer:
a = 500,000(1.15)^t
1,160,000
Step-by-step explanation:
a = 500,000(1.15)^t
in 2016
a = 500,000(1.15)^6
a = 1,156,530
Rounded
1,160,000
The number of members present in 2016 is 1,156,530. It can be rounded to 1,160,000.
What is an exponential function?
The function is expressed in the form like f(x) = a^x are called exponential function. Where x is a variable and a is a constant.
The number of members in the website in 2010 is 500,000.
Each year y members increased by 15%.
The exponential relation of members and year is
y = 500,000(1.15)^t
Then in 2016 the number of members present are given by,
y = 500,000(1.15)^6 = 1,156,530.
Hence, 1,156,530 members present in 2016. It can rounded to 1,160,000.
To learn more about exponential function, use the link given below:
https://brainly.com/question/29162975
#SPJ2
Solve for r. r - 76 = 9
Answer:
r=85
Step-by-step explanation:
r-76=9
add 76 to both sides
r=85
hope this is helpful
Answer: 85
Step-by-step explanation:
Since we're finding the placeholder of r and we're already subtracting, we need to add! What we need to do is add 76 + 9 which equals 85!
Hope this helps you! Good luck with your future work!
Help pleasee want asap
Answer:
I'm pretty sure it is D since all the other ones are maximum value parabolas (and the questions asks for a minimum) other than D.
Biscuits are sold in in packs of 8. How many packs should you buy if you need 56 biscuits.
Answer:
7
Step-by-step explanation:
you just divide 8/56= 7
-----------------------------------------------------------------------------
Step 1:
Start by setting it up with the divisor 56 on the left side and the dividend 8 on the right side like this:
56⟌8
Step 2:
The divisor (56) goes into the first digit of the dividend (8), 0 time(s). Therefore, put 0 on top:
0
56⟌8
Step 3:
Multiply the divisor by the result in the previous step (56 x 0 = 0) and write that answer below the dividend.
0
56⟌8
0
Step 4:
Subtract the result in the previous step from the first digit of the dividend (8 - 0 = 8) and write the answer below.
0
56⟌8
-0
8
the answer to 8 divided by 56 calculated using Long Division is: 7
Given: 2x^2 = 5x + 3
Find f(3)
Answer:
18 = 18
Step-by-step explanation:
f(3) =
2(3)^2 = 5(3) + 3
2 × 9 = 15 + 3
18 = 18
Listed below are the budgets (in millions of dollars) and the gross receipts (in millions of dollars) for randomly selected movies. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value using alphaequals0.05. Is there sufficient evidence to conclude that there is a linear correlation between budgets and gross receipts? Do the results change if the actual budgets listed are $65 comma 000 comma 000, $89 comma 000 comma 000, $51 comma 000 comma 000, and so on? Budget (x) 65 89 51 35 204 98 85
The data Given is incomplete, question with exactly similar data could not be found. However, similar questions with different data are numerous. Using one of this questions to take you through the solution to your question :
.
Question :
Listed below are the budgets (in millions of dollars) and the gross receipts (in millions of dollars) for randomly selected movies. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value using alpha = 0.05. Is there sufficient evidence to conclude that there is a linear correlation between budgets and gross receipts? Do the results change if the actual budgets listed are $61,000,000, $92,000,000, $48,000,000, and so onBudget(x) 61 92 48 36 135 58 93Gross(y) 69 62 53 58 627 144 42
a. What are the null and alternative hypotheses?i) H_0: rho = 0, H_1: rho < 0
ii) H_0: rho = 0, H_1: rho notequalto 0
iii) H_0: rho notequalto 0, H_1: rho = 0
iv) H_0: rho = 0, H_1: rho > 0
b. Construct a scatterplot. Choose the correct graph below.
c. The linear correlation coefficient r is.
d. The test statistic t is.
e. The P-value is.
Answer:
Pvalue > α ; Hence, we fail to reject the null.
Step-by-step explanation:
When testing for correlation :
Correlation Coefficient r is always between - 1 and 1. The alternative is always the opposite of the null. To claim that correlation exists, the r will not be equal to 0, because 0 means no correlation.
1.)
H_0: rho = 0,
H_1: rho notequalto 0
2.)
Given the data :
Budget(x) : 61 92 48 36 135 58 93
Gross(y) : 69 62 53 58 627 144 42
Scatter plot is attached below
3.) The linear correlation Coefficient as obtained using technology is 0.751 ; which depicts a strong positive correlation
4.)
Test statistic :
T = r / √(1 - r²) / (n - 2)
r² = 0.751² = 0.564
T = 0. 751 / √(1 - 0.564) / (7 - 2)
T = 0.751 / 0.2952964
T = 2.543
E.)
Using the Value from Tscore calculator :
Pvalue(2.543, 5) ; two tailed
Pvalue = 0.0517
At α = 0.05;
Pvalue > α ; Hence, we fail to reject the null. there is no sufficient evidence to conclude that there is a linear correlation between budgets and gross receipts.
The city is planting new trees in its downtown to make the streets more comfortable for visitors.They are planting each tree 12 feet apart.How many trees can they plant on 2 miles of streets? 5280 feet = 1 mile.
A number is multiplied by 4. That result is added to 12. The final number is 40.
What is the original number?
Answer:
n = 7
Step-by-step explanation:
Let the number be n. Then 4n + 12 = 40.
Solving this for n: 4n = 28, so that n must be 7.
n = 7
Answer: 28
Step-by-step explanation: 4x7=28. 28+12=40
A teacher surveys all of the students in the school to find out each student's favorite class. The bar graph shows the results of his survey. How many more students prefer Math than prefer Science? Use the bar graph to answer the question.
Answer:
14
Step-by-step explanation:
16 students prefer maths and 2 students prefer science so
16-2=14