Answers
Answer:
1200
Step-by-step explanation:
Related Questions
The mean monthly water bill for 44 residents of the local apartment complex is $104. What is the best point estimate for the mean monthly water bill for all residents of the local apartment complex?
Answers
Answer:
$104
Step-by-step explanation:
The computation of the best point estimate for the mean monthly water bill is shown below:
Given that
The mean monthly water bill is $104
and, the number of residents is 44
based on the above information
The best point estimate would be equivalent to the mean monthly water bill i.e. $104
hence, the same would be considered
What triangle is formed by the points (3,2 ) , 4, 7 and 5,6 ?
Answers
Answer:
Isosceles
Step-by-step explanation:
I'm not 100% sure but i believe its an isosceles.
Answer: the answer is A if ur on a iready test
Step-by-step explanation: they both are pointing to a
What is the measure of x?
3
27
Z
Х
x = ?
Answers
Answer:
x = √810
Step-by-step explanation:
Using the leg rule, which is given as:
Hypotenuse/leg = leg/part
Thus:
Hypotenuse = 27 + 3 = 30
leg = x
Part = 27
Plug in the values
30/x = x/27
Cross multiply
x*x = 30*27
x² = 810
x = √810
what is the next number in sequence -8 -4 0, 4,
Answers
Answer:
8
Step-by-step explanation:
You add 4 to get the next number.
(-8) + 4 = (-4)
(-4) + 4 = 0
0 + 4 = 4
4 + 4 = 8
What is the y value in solution the following system?
4x+3y=7
X+2y=-2
(Worth 10 points)
Answers
X+2y=-2………....(ii)
Multiplying eqn (ii) by 4
4x+8y=-8…………(iii)
Solving eqn ( i) and (iii)
PLEASE HELP ME !!!!!
Answers
Answer:
Step-by-step explanation:
1.values of x at y=0 are 1
2.5
3.
(3,-4)
4.
it is a minimum.
5.
axis of symmetry is x=3
A method currently used by doctors to screen for possible bre canc fails to detect canc in 15% of the women who actually have the disease. A new method has been developed that researchers hope will be able to detect canc more accurately. A random sample of 70 women known to have br canc were screened using the new method. Of these, the new method failed to detect can in six.
A. Specify the null and alternative hypothesis that the researchers wish to test.
B. Is the sample large enough
Answers
Step-by-step explanation:
1.sample size n = 70
X = 6
We calculate the sample proportion
P^ = 6/70
= 0.0857
The population proportion = 15 percent
P = 15/ 100
= 0.15
The question says we should specify the hypothesis
Null hypothesis
H0: p = 0.15
Alternative
H1: P < 0.15
2.
The sample size is 70 and therefore large enough
Answer the following. Round all answers to the nearest hundredths place.
The angle of elevation from point A to the top of the cliff is 38 degrees. If point A is 80 feet from the base of the cliff, how high is the cliff?
Answers
Answer:
62.5ft
Step-by-step explanation:
It doesnt matter if there's bumps along the side, the height will still reach to the same point.
Using trigonometry we have a adjacent and the opposite.
Hypotenuse is opposite the right angle
Opposite is opposite the angle
Adjacent is the last side to remain
Soh Cah Toa
We'll be using toa (Tan) because o and a (opposite and adjacent)
rearranging the original formuma :
Side × tan(Angle)
80 × tan (38) =62.50285....ft
can you help me I just need the answer
Answers
Answer:
im pretty sure it's D.
Step-by-step explanation:
First one to answer gets BRAINLIEST no cap look at the picture.
Answers
Answer:460
Step-by-step explanation:
which set does square 7 belong to? integers and irrational numbers irrational and real numbers real and rational numbers rational and whole numbers
Answers
Answer: irrational and real numbers
. On a playground, there are 25
children, either riding on seesaws,
two per seesaw, or swinging on tire
swings, three per swing. If the total
number of seesaws and swings
combined is 9, what is the maximum
number of tire swings on the
playground?
A. 1
B. 2
C. 7
D. 8
Answers
2800cm cubed into litres
Answers
Answer: 2.8 liters
Please mark as brainliest
Step-by-step explanation
divide by the volume of 1,000
2,800 divided by 1,000 is 2.8 so it is 2.8 liters
Determine whether the
following are define function
y=4x+1
[(-1,2), (0, 3) (1,4),(2,6)]
Answers
Answer:
sorry but i need the points
Step-by-step explanation:
Branliest to correct answer please explain how you got your answer :)
Answers
Answer:
0.167
Step-by-step explanation:
2 six sided dice= 12 total favorable outcomes
4&6= the 2 favorable outcomes
probability= fo/tfo
=2/12= 0.166666666 or 0.167
Determine whether the given value is a solution of the equation.
7w = 73; w = 10
Answers
Step-by-step explanation:
When w=10, 7w=7×10=70
But the given value of 7w is 73.
So, the given value is not a solution of the equation.
Help plzzzzzzxhshshxyxush
Answers
Answer:
a.
Step-by-step explanation:
because "six hundered one" is 601 and "five hundredths" is .05 so the only number with both those 2 is a so the awnser is a.
Please help...........
Answers
Answer:
A Linear
B Quadratic
C Quadratic
D Linear
Step-by-step explanation:
Final question - whats the answer?
Answers
Answer: 7^5 or 7 to the fifth power.
Step-by-step explanation: This is an exponent meaning you count the 7’s and in the first picture there’s 5 7’s. This means that the number your putting to a power is the yellow box so that’s 7 and the exponent is 5 not 4 because if you did 7 to the first power it’s still 7 so it would be 7 to the 5th power or 7^5
Help
Me ? I’m marking brainlist
Answers
Answer: I belive the answer is C
Step-by-step explanation:
Juan Carlos has been asked to find the distance between two points on a coordinate grid using the distance formula calculate the distance between points (-3,2) and (12,10)
Answers
engineers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all males. men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 0.9 in. find p99. that is, find the hip breadth for men that separates the smallest 99% from the largest 1%.
Answers
Answer:
x = 16.45 inches
Step-by-step explanation:
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 98% of all males. Men have hip breadths that are normally distributed with a mean of 14.4 inches and a standard deviation of 1 inch. find P98. I really don't understand, help needed please.
-----------------------
Find the z-value with a left tail of 0.98
invNorm(0.98) = 2.0537
-----
Find the corresponding x-value using x = zs+u
----
x = 2.0537*1+14.4
---
x = 16.45 inches
=====================
Help!! Whoever tries gets brainliest!
Answers
Answer:
q: quarters, 2q, 2q + 22, & 3(2q+22)
Step-by-step explanation:
A: The variable “q” will be the number of quarters
B:
2q will be the numbers of dimes
2q+22 will be the numbers of nickels
3(2q + 22) will be th number of pennies
Explain why y = 3x IS an exponential function and y = x3 is NOT an exponential function.
Answers
According to the U.S. Census, the proportion of adults in a certain county who owned their own home was 0.71. An SRS of 100 adults in a certain section of the county found that 65 owned their home. What represents the approximate probability of obtaining a sample of 100 adults in which 65 or fewer own their home, assuming that this section of the county has the same overall proportion of adults who own their home as does the entire county?
Answers
Answer:
0.0764 = 7.64% approximate probability of obtaining a sample of 100 adults in which 65 or fewer own their home.
Step-by-step explanation:
To solve this question, we use the normal approximation to the binomial distribution.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Can be approximated to a normal distribution, using the expected value and the standard deviation.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
Normal probability distribution
Problems of normally distributed distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
When we are approximating a binomial distribution to a normal one, we have that [tex]\mu = E(X)[/tex], [tex]\sigma = \sqrt{V(X)}[/tex].
According to the U.S. Census, the proportion of adults in a certain county who owned their own home was 0.71.
This means that [tex]p = 0.71[/tex]
Sample of 100:
This means that [tex]n = 100[/tex]
Mean
[tex]\mu = E(X) = np = 100*0.71 = 71[/tex]
Standard deviation:
[tex]\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{100*0.71*0.29} = 4.5376[/tex]
What represents the approximate probability of obtaining a sample of 100 adults in which 65 or fewer own their home, assuming that this section of the county has the same overall proportion of adults who own their home as does the entire county?
This is, using continuity correction, [tex]P(X \leq 65 - 0.5) = P(X \leq 64.5)[/tex], which is the pvalue of Z when X = 64.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{64.5 - 71}{4.5376}[/tex]
[tex]Z = -1.43[/tex]
[tex]Z = -1.43[/tex] has a pvalue of 0.0764
0.0764 = 7.64% approximate probability of obtaining a sample of 100 adults in which 65 or fewer own their home.
Is this A,B,C or D helppppp
Answers
Answer:
D
Step-by-step explanation:
D goes thru positive 4 and negative 3
3. B = {2, 4, 6, 8, 10}
AU B = {1, 2, 3, 4, 6, 8,10 }
An B = {2,4}
Represent the above information on a Venn diagram.
Please help
Answers
Answer:
onlyA(1,3)
AnB(2,4)
onlyB(6,8,10)
Step-by-step explanation:
(AUB)-(B)=(onlyA)
(1,2,3,4,6,8,10)-(2,4,6,8,10)=(1,3)
(B)-(AnB)=(onlyB)
(2,4,6,8,10)-(2,4)=(6,8,10)
hope this can help you
Answer: sorry but i need points
5 1/3 + (2 2/3 + 1 1/3)
Answers
[tex]x {}^{2} + 6x = x {}^{2} + 6x[/tex]
is an example of the _______ property .
a. symmetric
b. reflexive
c. transitive
Answers
Answer:
a
it's so easy why ask this question?
Janet plants 20 varieties of flowers in the spring . She reports that 90% of the flowers she have planted bloomed
How many varieties have bloomed
Pls answer ASAP
Answers
Answer:
18
Step-by-step explanation:
90% of 20 is 18
Answer:
18
Step-by-step explanation:
90%of 20 =18
so the answer is 18