Answer:
7 1/3
Step-by-step explanation:
Add the whole numbers in the equation:
3+4=7
This will get you 7 1/3
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! TRIG RATIOS!!!!!!!!!!!!
Answer:
cos Z = 7/25, ∠Z ≈ 73.74°
Step-by-step explanation:
SOH CAH TOA
↑ adjacent/hypotenuse
cos Z = 7/25
=> Z = cos^-1 (7/25)
=> Z ≈ 73.74°
The joint F.D.P of a bivariate VA (X, Y) is given
per:
a) Find the value of K.
b) Find the marginal F.D.Ps of X and Y
c) X and Y are independent?
Answer:
2
Step-by-step explanation:
ed
A sample of bacteria is decaying according to the half-life model f(t) = Ne -0.226t, where N is the initial sample size and t
is time in hours. At t = 4, there are 25 bacteria remaining. What was the initial sample amount? Round your answer to the
nearest whole number, and do not include units.
Answer:
Step-by-step explanation:
A sample of bacteria is decaying according to the half-life model f(t) = Ne -0.226t, where N is the initial sample size and t
is time in hours. At t = 4, there are 25 bacteria remaining. What was the initial sample amount? Round your answer to the
nearest whole number, and do not include units.
2 questions for math
Answer:
x = -24
a = 11
Step-by-step explanation:
So for the first one:
[tex]-\frac{1}{4} x+6=\frac{2}{3} x+28[/tex]
Multiply both sides of the equation by 12
[tex]-3x+72=8x+336[/tex]
Subtract 8x from both sides
[tex]-11x+72=336[/tex]
Subtract 72 from both sides
[tex]-11x=264[/tex]
Divide both sides by -11
[tex]x=-24[/tex]
And the second one...
[tex]2(a-2)=3(a-5)[/tex]
Distribute the 2 to the (a - 2) and the 3 to (a - 5)
[tex]2a-4=3a-15[/tex]
then add 15 to both sides
[tex]2a+11=3a[/tex]
Subtract 2a from both sides
11 = a
Answer this please, I’ll reward brainalist + points, please help!
Answer:
4th one is 3rd option 5th one is 4th option 6th one is 5th opinion
Step-by-step explanation:
Answer:the answer is c
Step-by-step explanation:
Use the following image to multiply.
5/8 of 4 =
Answer:
2.5
Step-by-step explanation:
Answer:
[tex]2\frac{1}{2}[/tex] or 2.5
Step-by-step explanation:
[tex]\frac{5}{8}*4\\ \\ =\frac{5}{8}*\frac{4}{1} \\ \\ =\frac{5*4}{8*1} \\ \\ =\frac{20}{8} \\ \\ =\frac{5}{2} \\ \\ =2\frac{1}{2} or 2.5[/tex]
someone help me answer this!!
Answer:
30 ft is the answer.
Step-by-step explanation:
a = 24 ft
b = 18 ft
c = ?
According to the Pythagoras theorem,
a² + b² = c²
24² + 18² = c²
576 + 324 = c²
c² = 900
c = 30 ft
∴ The opposite corners of the living room are 30 ft apart.
Select all the roots of the following equation.
Solve (x−5)(x+9)=0
Select 2 correct answer(s)
14
5
-9
5
9
-14
Answer:
5, -9
Step-by-step explanation:
(x - 5)(x + 9) = 0 These are factors, to get the roots, just set each one equal to zero
x - 5 = 0
x = 5
x + 9 = 0
x = -9
Answer:
Postive 5 and negative 9.
Step-by-step explanation:
So remember, all we have to do is set each of the parethese to zero and solve. It should look like this:
x-5=0 and x+9=0
For the first equation we have made, jsut add 5 to both sides so x is alone. This will get you:
x=5
So the first answer for x is 5.
Now lets solve our second equation and find the second answer for x.
So all we have to do for this one is subtract 9 from both sides. This should get you:
x=-9
So now we know that our two answers for x is 5 and -9.
These two answers seem to be on your list as #2 answer and #3 answer.
Help needed! Please needed ASAP!
Answer:
7)Bagel costs $3.5 and muffin cost $1.25
8) Ticket is $9 while snacks are $2
9) Correct because left hand side is zero
10) Correct because they both have same slope and same y-intercept
Step-by-step explanation:
7) Let bagel be x and muffin be y.
Thus;
For Aaron;
x + 3y = 7.25 - - - (1)
For bee;
x + 2y = 6 - - - (2)
Subtract eq 2 from eq 1 to get;
y = 1.25
Put 1.25 for y in eq 2;
x + 2(1.25) = 6
x + 2.5 = 6
x = 6 - 2.5
x = 3.5
Bagel costs $3.5 and muffin cost $1.25
8) Let movie ticket be x and snacks be y.
Thus;
2x + 3y = 24 - - - (1)
3x + 4y = 35 - - - (2)
Multiply eq(1) by 3 and eq(2) by 2 to get;
6x + 9y = 72 - - - (3)
6x + 8y = 70 - - - (4)
Subtract eq 4 from eq 3 to get;
y = 2
Put 2 for y in eq 3;
6x + 9(2) = 72
6x + 18 = 72
6x = 72 - 18
6x = 54
x = 54/6
x = 9
Ticket is $9 while snacks are $2
9) using elimination, subtract eq 1 from eq 2, we will see that the entire left hand side is equal to zero.
Thus, no solution exists because we can't isolate the variable to get an answer.
10) The answer is correct because for a system of 2 simultaneous equations to have infinite solutions, they both have to have the same y-intercept and also same slope.
In this case, their y-intercept which is when x is 0 is;
3(0) + y = 9
y = 9
Their slope is also the same equal to 3.
Please the the working. A car bought for $200 and sold for $250, what was the percentage gain of the cost price?
9514 1404 393
Answer:
25%
Step-by-step explanation:
A percentage change is calculated using the formula ...
pct change = ((new value) - (old value))/(old value) × 100%
For your numbers, this is ...
pct change = (250 -200)/200 × 100% = 50/200×100% = 25%
The selling price was 25% more than the cost price.
What set has the largest mode? Just to inform you I took this once already and C is not the answer (I’ll give points + brainalist)
Answer:
D
Step-by-step explanation:
The mode of a set of numbers is the number that occurs the most.
For A, the mode is 3. For B, the modes are 4,5, and 6 . For C, the mode is 4. For D, the mode is 11.
The largest of these modes is 11, so the answer is D
A fashion designer wants to know how many new dresses women buy each year. A sample of 683 women was taken to study their purchasing habits. Construct the 95% confidence interval for the mean number of dresses purchased each year if the sample mean was found to be 4.6. Assume that the population standard deviation is 2. Round your answers to one decimal place.
The required confidence interval is (5.5<<5.7) for the mean number of dresses purchased each year.
As per the question, the given data as
[tex]\bar{x}[/tex] = 5.6
σ = 1.3
n = 650
The Z-critical value at the 95% confidence level is 1.960.
To determine the 99% confidence interval for the mean number of dresses purchased each year.
95% CI = [tex]\bar{x}[/tex] ± Z(Cr)(s/√n)
⇒ -5.6 ± 1.960(1.3/√650)
⇒ 5.6±0.100
⇒ (5.500,5.700)
Round to near 1 decimal place
⇒ (5.5,5.7)
Therefore, the required confidence interval is (5.5<<5.7)
Learn more about the critical value here:
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is (5,2) a solution of x-y≤0
Answer:
No.
Step-by-step explanation:
x - y ≤ 0
(5, 2)
5 - 2 ≤ 0
3 ≤ 0 is false, so the answer is no.
Answer: No
Find the value of f(4) for the function
Answer:
f(4) = 7
Step-by-step explanation:
The notation for these type of problems is very confusing. Just remember that f(x) is the same thing as y (or some variable). Even if there is a number or something on the inside of the parentheses, it's still just a variable.
In our case
f(a) = 2(a + 4) -9
could be rewritten as
y = 2(a + 4) - 9
the thing on the inside of the parentheses signifies what the equation is dependent on.
so when is says f(4), it just want's you to trade out a for a 4, but the equation is still the same.
f(4) = 2((4) + 4) - 9
Now, just follow the order of operations
f(4) = 2(8) - 9
f(4) = 16 - 9
f(4) = 7
A circular spinner is divided into 17 sectors of equal area. There are 6 red sectors, 6 blue, 3 yellow, and 2 green. Consider the experiment of spinning the spinner once. Find the probability
that the spinner lands on blue or green.
The probability that the spinner lands on blue or green is
Answer:
8/17 or 47% or .47
Step-by-step explanation:
8 of them are blue or green and there are 17 total. So 8 out of 17 (8/17) are likely to be spun
The required probability is 8/17 that the spinner lands on blue or green.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
Given that the circular spinner is split into 17 equal-sized sections. There are six red sectors, six blue sectors, three yellow sectors, and two green sectors.
The total number of outcomes. = 6 + 6 + 3 + 2
So n(S) = 17
Number of favorable outcomes i.e. (blue+green), n(E) = 6 + 2 = 8
Consider the experiment of once spinning the spinner.
The probability of the spinner landing on blue or green will be
⇒ P(E) = n(E)/n(S)
⇒ P(E) = 8/17
Therefore, the required probability is 8/17 that the spinner lands on blue or green.
Learn more about the probability here:
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please help i really can't figure this out
Answer:
The cost of one petunia is
⇒(6-6.5)/(8-8)
⇒-0.5/6
⇒-1/12
hope it helps..
have a great day!!
if f(x)=k g(x), what is the value of k
Answer:
the y intercept
Step-by-step explanation:
the k in algebra is the y intercept :))
Solve. -52 +63 +(-41) = 0 8 16. 5 3 Done
Answer:
No Solution
or -30
Step-by-step explanation:
Answer:
-30
Step-by-step explanation:
-52 + 63 (-41)
=-30
At an online sports store, Jeremy bought 5 of the same pairs of shorts for him and his friends. He got free shipping because his total was at least $120. What was the minimum price of each pair of shorts? Write and solve an inequality to represent the situation.
Plz help no file
Answer:
24
Step-by-step explanation:
I'm pretty sure that it would be division so 120 divided by 5 is 24
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answer:
<DEC and <IHJ
Step-by-step explanation:
Alternate exterior angles are angles on the other side of a transveral and on the exterior area.
i am so confused help me whats 2x3x4x6x7+7=
Answer:
1015 will be your answer!
Step-by-step explanation:
2 x 3 x 4 x 6 x 7 + 7 =
6 x 24 x 7 + 7 =
144 x 7 + 7 =
1008 + 7 =
1015
Answer:
Hi! The answer to your question is [tex]1015[/tex]
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆
☆Brainliest is greatly appreciated!☆
Hope this helps!!
- Brooklynn Deka
Suppose Lauren is working two jobs to help pay for college. One job pays more per hour than the other. Since her boss at the higher-paying job wouldn't give her as many hours as she wanted, she picked up the second job to generate more income. With her course load, 20 hours a week of work is all she can manage, but she wants to make as much money as possible in those 20 hours. Her goal is to get twice as many hours a week at the higher-paying job than at the lower-paying one. How many hours should she work at each job
Answer:
She will work 6.67 hours at the low paying job and 13.33 hours at the high paying job
Step-by-step explanation:
Given
[tex]x = Low\ pay\ job[/tex]
[tex]y = high\ pay\ job[/tex]
From the question, we have that:
She can only work for 20 hours.
This implies that:
[tex]x + y= 20[/tex]
To work 2ce as many hours at the high paying job than the low paying job; implies that:
[tex]y = 2x[/tex]
So, we have:
[tex]x + y= 20[/tex]
[tex]y = 2x[/tex]
Required
Number of hours at each job
Substitute [tex]y = 2x[/tex] in [tex]x + y= 20[/tex]
[tex]x + 2x = 20[/tex]
[tex]3x =20[/tex]
Solve for x
[tex]x = \frac{20}{3}[/tex]
[tex]x = 6.67[/tex]
Substitute [tex]x = \frac{20}{3}[/tex] in [tex]y = 2x[/tex]
[tex]y = 2 * \frac{20}{3}[/tex]
[tex]y = \frac{40}{3}[/tex]
[tex]y = 13.33[/tex]
She will work 6.67 hours at the low paying job and 13.33 hours at the high paying job
- Aimi is making Valentine's Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 2 closest friends. She will use 1/2 of a sheet of paper for everyone else in the class. She has 13 sheets of paper. How many of the smaller cards can she make?
PLEASE HELP ME!!!!!!!!!!!
Answer:
I'm not sure
Step-by-step explanation:
Tell whether it is possible to draw a figure with the given description.
a triangle with sides of length 5 inches and 6 inches that meet at a 50° angle
Is it possible or not possible. Will give brinliest
Answer:
in my opinion it is not possibleStep-by-step explanation:
hope it helps you have a good day
A home business has an average income of $900.00 per month with a standard deviation of $15.00 if the income given month is $930.00 what z-score corresponds to this value
Answer:
Z score is a statistical that corresponds to the standarization of the regular score to a normal dsitribution
The formula for Z score is Z = [X - mean ]./ (standar deviation)
Here X = 930.00; mean = 900.00; and standard deviation = 15.00
Then, Z = [930.00 - 900.00] / 15.00 = 30.00 / 15.00 = 2.00
Answer: 2.00
Step-by-step explanation:
7. Find the radius of a circle with an area of 30 square units. Round your answer to the nearest
whole number
8. Find the diameter of a circle with an area of 50 square units. Round your answer to the nearest
whole number.
9. A deck wraps around the back of a house. Find the area of the deck made up of rectangles.
Answer:f
tyn
Step-by-step explanation:
6. There are 424 students at Scobey Middle School. About how many can
be expected to prefer chocolate chip cookies?
Suppose a car uses one gallon of gasoline for
every 20 miles traveled.
1) If a gallon of gasoline costs $2.75, how much will the gasoline cost to
travel 300 miles in the car?
A) $22.00
B) $27.50
C) $32.75
D) $41.25
Answer:
the awnser is D) $41.25.
Given the data below, what is the upper quartile? 1,1,3,4,4,4,8,9,13,15
Answer:
9 is Q3
Step-by-step explanation:
1,1,3,4,4,4,8,9,13,15
3 is Q1
4 is Q2 (median)
9 is Q3
The upper quartile for the given data set is 3.
What are quartiles?In statistics, a quartile is a type of quantile which divides the number of data points into four parts, or quarters, of more-or-less equal size. The data must be ordered from smallest to largest to compute quartiles; as such, quartiles are a form of order statistic.
Given is a data as given below -
1,1,3,4,4,4,8,9,13,15
The first quartile Q1 is the 25th percentile. It is also called as the upper quartile. So, we can say that that the upper quartile is 3.
Therefore, the upper quartile for the given data set is 3.
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