Answer: Need more info. We need to know how many minutes over the 300 minutes were used in order to calculate the correct monthly fee.
Step-by-step explanation:
Evelyn can run 3 miles in 40 minutes. Which equation can be solved to find m, the number of miles Evelyn can run in 60 minutes?
Answer:
m= 4.5 miles
Step-by-step explanation:
Let the number of miles Evelyn can run be m and can be modeled by the equation below
m= kx
Where x Is the Minutes
When m= 3
x= 40
3= k40
k= 3/40
If x= 60
m=3/40(60)
m = (60*3)/40
m= 180/40
m= 4.5 miles
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Please answer thank youu!!!
Answer: its option "b"
Pentagon;not regular
Step-by-step explanation:
The polygon has 5 sides but all the sides are not equal
hence, it is an irregular pentagon
Hope this helped you!!
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Assume a healthy heart beats exactly 70 times per minute. If an individual lives to age 85 years, estimate the number of heartbeats in his or her lifetime, using scientific notation.
Answer:
3.12732 × 10⁹ beats
Step-by-step explanation:
Given that, in 1 min, the heart of an individual makes 70 beats, the number of beats the heart of the healthy individual makes in 85 years can be calculated as follows:
1 yr = 365 days, therefore,
85yrs = 85*365 = 31,025 days
1 day = 24 hours
31,025 days = 31,025*24 = 744,600 hours.
1 hr = 60 mins
744,600 hours = 744,600*60 = 44,676,000 mins
This means the individual lived for 44,676,000 mins (85yrs)
If 70 beats are made in 1 min, therefore, in 85yrs, the individual will make:
44,676,000*70 = 3,127,320,000 beats = 3.12732 × 10⁹ beats in 85yrs
Suppose "35" cars start at a car race. In how many ways can the top 3 cars finish the race?
Answer:
Number of ways top 3 cars finish the race = 39,270
Step-by-step explanation:
Given:
Total number of cars = 35
Number of top cars = 3
Find:
Number of ways top 3 cars finish the race
Computation:
It is a permutation based problem.
So,
npr = n! / (n-r)!
35p3 = 35! / (35! - 3!)
35p3 = 35 ! / 32!
35p3 = 35 × 34 × 33
35p3 = 39,270
Number of ways top 3 cars finish the race = 39,270
f(x) = -x - 3 Find f(-4) f(-4) = -(-4) -3
Answer:
[tex] \boxed{ \bold{ \boxed{ \sf{f( - 4) = 1}}}}[/tex]
Step-by-step explanation:
Given, f ( x ) = - x - 3
Let's find the value of f ( - 4 )
[tex] \sf{f( - 4) = - ( - 4) - 3}[/tex]
We know that , [tex]( - ) \times ( - ) = ( + )[/tex]
⇒[tex] \sf{ 4 - 3}[/tex]
Subtract 3 from 4
⇒[tex] \sf{1}[/tex]
Hope I helped!
Best regards!!
ANSWER IF YOU LOVE YOUR LORD!!!! Which graph represents the solution to: 2k+8<5k-1?
Answer:
Third graph
Step-by-step explanation:
First, find the solution to the equation of inequality given.
2k + 8 < 5k - 1
Subtract 5k from both sides
2k + 8 - 5k < 5k - 1 - 5k
-3k + 8 < -1
Subtract 8 from both sides
-3k + 8 - 8 < -1 - 8
-3k < -9
Divide both sides by -3. (Note: < will change to > when dividing both sides with negative number)
[tex] \frac{-3k}{-3} [/tex] > [tex] \frac{-9}{-3} [/tex]
k > 3
The graph that will represent this solution will show that all values of k are greater than 3. 3 is not included as a solution. The "o" on top of the 3 on the number line won't be shaded to indicate that 3 is not included. And also, the arrow will point from 3 towards our right.
Therefore, the 3rd graph is the answer.
How many ways can six of the letters of the word ALGORITHM be selected and written in a row if the first three letters must be THM
Answer: 120 ways
Step-by-step explanation: The word ALGORITHM has 9 letters. We want them to be written in a row, which means, order of the letters are important, so, use Permutation.
Permutation is calculated by:
P(n,r) = [tex]\frac{n!}{(n-r)!}[/tex]
We want to use 6 of the 9 letters with first 3 being THM. So, n = 6 and r = 3:
Permutation will be:
P(6,3) = [tex]\frac{6!}{(6-3)!}[/tex]
P(6,3) = [tex]\frac{6.5.4.3!}{3!}[/tex]
P(6,3) = 120
There are 120 ways six letters of ALGORITHM be written in a row with first three letters THM.
In a recent Super Bowl, a TV network predicted that 31 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 120 people who saw the commercials and found that 40 of them said they would watch one of the television shows. Suppose you have the following null and alternative hypotheses for a test you are running:
1. H0: p = 0.53 Ha: p ≠ 0.53
2. H0: p = 0.53 Ha: p ≠ 0.53
Calculate the test statistic, rounded to 3 decimal places.
Answer:
-4.317
Step-by-step explanation:
The z test statistic for testing of 1-proportion can be computed as
[tex]z=\frac{phat-p}{\sqrt{\frac{pq}{n} } }[/tex]
We know that
phat=x/n.
We know that x=40 and n=120.
Thus,
phat=40/120=0.3333
p=hypothesized proportion=0.53
q=1-p=1-0.53=0.47
So, required z-statistic is
[tex]z=\frac{0.3333-0.53}{\sqrt{\frac{0.53(0.47)}{120} } }[/tex]
[tex]z=\frac{-0.1967}{ 0.04556 }[/tex]
z=-4.317.
Thus, the required test statistic value for given hypothesis is z=-4.317.
59. Solve the equation.
--3r - 4(r + 2) = 11
Answer:
r = -19/7
Step-by-step explanation:
-3r - 4r - 8 = 11
-7r - 8 = 11
-7r= 11 +8
-7r = 19
Help me pls- I'll give u 55 points <3
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
So we have the expression:
[tex]39\div(2+1)-2\times(4+1)[/tex]
Recall the order of operations or PEMDAS:
P: Parentheses
E: Exponents
M/D: Multiplication and Division (Whichever First)
A/S: Addition and Subtraction (Whichever First)
Thus, first do the operations inside the parentheses:
[tex]39\div(2+1)-2\times(4+1)\\=39\div(3)-2\times(5)[/tex]
Now, do division and multiplication:
[tex]39\div(3)-2\times(5)\\=13-2\times5[/tex]
And the multiplication:
[tex]13-2\times5\\=13-10[/tex]
And finally, subtract:
[tex]13-10\\=3[/tex]
When two straight lines cross, it is found that the angles opposite to each ate the same size. They are known as
The angles don't need to be lined up vertically, or have one over top another. You could have them laid out horizontally. All that matters is that they are opposite angles after an X shape has been formed by two crossing lines. Vertical angles are always congruent.
A company has determined that 1% of its widgets are defective. If a customer received 2 widgets, what is the probability that they are both defective?
Assume independence because there are probably a lot of widgets. 1/100 x 1/100 = 1/10,000
Answer:
I'm just answering so the other person can have brainliest.
Sometimes I wonder if I'm the only idiot in the world.
Step-by-step explanation:
The claim is that for a smartphone carrier's data speeds atairports, the mean= 14.00Mbps. The sample size is equals=27 and the test statistic is t equals=1.386.
What is the P-value=
Degree of freedom = sample size -1 = 27-1 = 26
Given t = 1.386
This is a two tailed test.
Using a TI83/84 calculator:
2 x tcdf(1e99,-1.386,26) = 0.177520
The p value = 0.177520 (round the answer as needed)
Where is the blue dot on the number line?
Answer:
-5.8
Step-by-step explanation:
A line segment with one end at A (-3,2) has midpoint M (2,-3). Find the coordinate of the other end point B.
(A.) B (-1,-1)
(B.) B (5,-5)
(C.) B (1,-4)
(D.) B (7,-8)
Answer:
D
Step-by-step explanation:
since all x coordinates are distinct, lets just find the x coordinate (multiple choice question)
Midpoint formula:
given two points, (x1, y1) and (x2, y2)
the midpoint is ((x1+x2)/2, (y1+y2)/2)
-3+x2 = 2*2
x2 = 7
Find a12 given the geometric sequence 2, -6, 18, -54, ...
A. 1,062,882
B.-1,062,882
C. 354,294
OD. -354,294
Answer:
The answer is option AStep-by-step explanation:
Since the above sequence is a geometric sequence
For an nth term in a geometric sequence
[tex]A(n) = a ({r})^{n - 1} [/tex]
where
a is the first term
r is the common ratio
n is the number of terms
From the question
a = - 6
To find the common ratio divide the next term by the previous term
That's
r = 18/-6 = - 3 or -54/18 = - 3
Since we are finding the 12th term
n = 12
Substitute these values into the above formula
We have
[tex]A(12) = - 6 ({ - 3})^{12 - 1} [/tex]
[tex]A(12) = - 6 ({ - 3})^{11} [/tex]
We have the final answer as
A(12) = 1,062,882Hope this helps you
3. Solve: 4x + 2 = 3x -9
Answer:
x=-11 is the answer
Step-by-step explanation:
4x + 2 = 3x -9
4x-3x+2=-9
1x=-9-2
x=-11
hope it will help ^_^
Round 3.99408317124 to the nearest tenth.
Answer:
4.0
Step-by-step explanation:
when rounded the nine adds to the whole number making it 4
Rounding 3.99408317124 to nearest tenth becomes 4.
Why we round numbers ?We round numbers as it is easy to remember and also rounding a number to a certain place retains approximate value to that pace.
According to the given question we have to round 3.99408317124 to nearest tenth.
We know to round a number to a certain place we have to check the
digit that is one place lesser.
Now we have to round 3.99408317124 to tens place so we'll look at the digit at ones' place which is 9 and is greater than 5 so we'll add one to it this will make it 0 and 1 will carry over.
Thus the number becomes 4.0.
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f + 3 pi = 7 pi what is f?
Answer:
f = 4 pi
Step-by-step explanation:
f + 3 pi = 7 pi
f = 7 pi - 3 pi
f = 4 pi
Answer:
f = 4 pi
Step-by-step explanation:
f + 3 pi = 7 pi
Subtract 3 pi from each side
f + 3 pi -3pi = 7 pi -3 pi
f = 4 pi
select the property that is demonstrated by: 3+7=7+3
Answer:
Commutative property of addition
Step-by-step explanation:
This is called the commutative property of addition which states that a + b = b + a. In this case, a = 3 and b = 7.
Answer:Communitive Property of Addition
Step-by-step explanation:
A+B=B+A 3+7=7+3
The communitive property of addition states that the order of two numbers being added doesn’t matter and that the sum is the same.
Answer this question please. Thanks
Answer:
a). $8.30
b).$18.70
c). $10.40
d). 1.04
Step-by-step explanation:
Average price of the ticket of a basketball game can be represented by the function,
p(x) = 0.03x² + 0.56x + 6.35
Where 'x' is the number of years or duration.
a). P(3) = 0.03(3)² + 0.56(3) + 6.35
= 0.27 + 1.68 + 6.35
= $8.30
b). P(13) = 0.03(13)² + 0.56(13) + 6.35
= 5.07 + 7.28 + 6.35
= $18.70
c). P(13) - P(3) = 18.70 - 8.30
= $10.40
d). [tex]\frac{P(13)-P(3)}{13-3}[/tex] = [tex]\frac{10.40}{10}[/tex]
= 1.04
Average increase in the price of each ticket from 3 tickets to 13 tickets is $1.04.
Which multimedia sources are best for a student writing a research paper on childhood obesity? Check all that apply.
a documentary produced by an association of pediatricians
a sound bite of doctors at a forum discussing the issue
a cartoon showing families eating dinner at a fast-food restaurant
a podcast in which children share their eating habits
a timeline made by the government showing obesity trends
Answer:
1, 2 , 5
Step-by-step explanation:
Correct on edge 2020
The multimedia sources that are best for a student writing a research paper on childhood obesity are:
A documentary produced by an association of pediatricians.
A sound bite of doctors at a forum discussing the issue.
A timeline made by the government showing obesity trends.
What is obesity?Obesity is typically caused by overeating and inactivity. If you consume a lot of energy, especially fat and sugars, but don't burn it off through exercise and physical activity, your body will store a lot of it as fat.
Obesity is a complicated condition characterized by an excess of body fat. Obesity is more than simply an aesthetic issue.
Therefore, the correct options are 1, A documentary produced by an association of pediatricians. 2, A sound bite of doctors at a forum discussing the issue, and 5, A timeline made by the government showing obesity trends.
To learn more about obesity, refer to the link:
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NEED HELP ASAP!! Angles of Elevation and Despression! Need to find x! Round to the nearest tenth!
Answer:
Hey there!
Sine 61=x/500
Sine 61(500)=x
x=437.3
Let me know if this helps :)
Use the divergence theorem to find the outward flux of the vector field F(x,y,z)=2x2i+5y2j+3z2k across the boundary of the rectangular prism: 0≤x≤1,0≤y≤3,0≤z≤1.
By the divergence theorem, the flux of F across the boundary of a region, ∂R, is equal to the integral of div(F ) over the region itself, R. In this case, the flux would be
[tex]\displaystyle \iint_{\partial R}\mathbf F\cdot\,\mathrm d\mathbf S = \iiint_R\mathrm{div}(\mathbf F)\,\mathrm dx\,\mathrm dy\,\mathrm dz \\\\ = \int_0^1\int_0^3\int_0^1\frac{\partial(2x^2)}{\partial x} + \frac{\partial(5y^2)}{\partial y} + \frac{\partial(3z^2)}{\partial z} \,\mathrm dx\,\mathrm dy\,\mathrm dz \\\\ = \int_0^1\int_0^3\int_0^1 (4x+10y+6z)\,\mathrm dx\,\mathrm dy\,\mathrm dz = \boxed{60}[/tex]
In this exercise we have to calculate the flux by the divergent theorem:
[tex]\int\limits\int\limits_R\, ds = 60[/tex]
By the divergence theorem, the flux of F across the boundary of a region, ∂R, is equal to the integral of div(F ) over the region itself, R. In this case, the flux would be:
[tex]\int\limits\int\limits_R {F} \, ds= \int\limits \int\limits \int\limits_R {div(F)} \, dxdydz\\=\int\limits^1_0 \int\limits^3_0 \int\limits^1_0 {(4x+10y+6z)} \, dx dy dz= 60[/tex]
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The student council at Mountain View High School plans to conduct a survey to determine the student body's opinion of the new lunch menu. Which of the following sampling methods would be most likely to result in nonresponse bias? O A. Handing out a questionnaire to seniors only 0 B. Obtaining an alphabetical list of all students and surveying every 10th student O C. Setting up a booth in the lunchroom where students can give their thoughts D. Handing out a questionnaire to students leaving campus at lunchtime
Answer:
C. Setting up a booth in the lunchroom where students can give their thoughts
Step-by-step explanation:
Sampling is the process by which some part of the entire population is selected and researched. This selected population helps in estimating the researches for the entire population. There are various methods used for the process of sampling.
For the given case, the sampling method to be adopted is to view each students' opinion on the issue. For this process, setting up a booth can prove helpful as the opinion of every student can be viewed with no biases. Also, every student is free to provide their opinion with any fear.
What are the most appropriate measures of center and spread of the data set?
Answer:
B... According to the statement..
Step-by-step explanation:
The mean and median determines the numerical measures of center. The mean is used when showing the center as an average while the median shows the middle value of a data. The range and IQR determines the numerical measures of spread.
Hope it helped u if yes mark me BRAINLIEST!
Tysm!
Answer:
answers below vote brainliest
Step-by-step explanation:
An arrangement of bowling
pins has 5 pins in the first
row and 12 rows in all. In
each successive row two
pins are added.
Which of the following is
the explicit rule and what is
the number of pins in the
12th row?
Tony rounded each of the numbers 1,143 and 1,149 to the nearest hundred. Which choice correctly compares the rounded numbers?
The rounding off should be 1100.
What is rounding off?Rounding a number means the process of making a number simpler such that its value remains close to what it was. The result obtained after rounding off a number is less accurate, but easier to use. While rounding a number, we consider the place value of digits in a number.
Rounding Numbers to the Nearest HundredRounding numbers to the nearest hundred means we need to check the digit to the right of the hundreds place, that is, the tens place. For example, when 7456 is rounded to the nearest hundred, it becomes 7500.
Given numbers are 1143 and 1149.
According to the given numbers both the numbers rounded off nearest hundred.
The number 143 and 149 lies between 100 to 200.
So, the round off will be 100.
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Find the inverse of the exponential function f(x)=10^x
Answer: [tex]y=\frac{ln(x)}{ln(10)}[/tex]
Step-by-step explanation:
To find the inverse of the function, you first replace the y with x and x with y. Then you solve for y.
[tex]y=10^x[/tex] [replace y with x and x with y]
[tex]x=10^y[/tex] [find natural log of both sides to get y alone]
[tex]ln(x)=ln(10)^y[/tex] [divide ln(10) on both sides]
[tex]\frac{ln(x)}{ln(10)} =y[/tex]
Now that we have found y after switching y with x and x with y, we know that the inverse is [tex]y=\frac{ln(x)}{ln(10)}[/tex].
PLEASE HELP, I DON'T UNDERSTAND THIS! :(
Divide.
Answer:
Step-by-step explanation:
Hello, please consider the following.
We need to factorise as much as possible and eliminate the same term from numerator and denominator
[tex]\dfrac{\dfrac{x^2-4x-5}{x-2}}{\dfrac{2x-10}{x^2-4}}\\\\\\=\dfrac{(x^2-4x-5)}{(x-2)}\dfrac{(x-2)(x+2)}{(2x-10)}\\\\\\=\dfrac{(x-5)(x+1)(x+2)}{(2x-10)}\\\\\\\large \boxed{=\dfrac{(x+1)(x+2)}{2}}[/tex]
Thank you