Answers
Related Questions
Pls help me out I’m having some trouble
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Answer:
Yes, the table below does represent a proportional relationship since 7/3=12.5/5=20/8=27.5/11=2.5.
Step-by-step explanation:
HELP ME FAST!!
What is the different between (3,2) and (3, -6)?
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Answer: the answer is 8
Step-by-step explanation:
-6 + 8 = 2 (y)
Which ordered pair is the solution to this system of equations?
2y= 6x + 10
y= 2x + 4
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Answer:
the answer is (-1,2), hope this helps.
Calculate the final cost of the item with tax. Gloves: $17.50, Tax: 6.15% *PLS HELP*
Answers
Answer:
$17.50 + $1.08 (sales tax) = $18.58
Step-by-step explanation:
17.50 x 6.150
2x - 4 > 4
...................
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Answer:
x>4
Step-by-step explanation:
Who solved the problem incorrectly, and where was the first mistake made?
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Answer:
B
Step-by-step explanation:
20 × 30 = 600
30 × 6 = 180
5 × 6 = 30
but 20 × 5 doesn't equal 10
Answer: B
explanation: mariah was doing it right until she multiplied 20x5. she put 10, which is wrong. it’s 100
Please help. Also my answers are wrong.
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The picture is a bit blurry, I think it is 6x divided by 8 right?
Ten samples of coal from a Northern Appalachian source had an average mercury content of 0.242 ppm with a standard deviation of 0.04 ppm. Find a 95% confidence interval for the mean mercury content of coal from this source. Round the answers to four decimal places.
Answers
Answer:
0.2172<x<0.2668
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = xbar ± (z*s/√n)
xbar is the average = 0.242ppm
z is the z score at 95% confidence = 1.96.
s is the standard deviation = 0.04pm
n is the sample size = 10
substitute the values into the formula;
CI = xbar ± (z*s/√n)
CI = 0.242 ± (1.96*0.04/√10)
CI = 0.242 ± (1.96*(0.04/3.1623))
CI = 0.242 ± (1.96*(0.01265))
CI = 0.242 ± (0.02479)
CI = (0.242-0.02479, 0.242+0.02479)
CI = (0.2172, 0.2668)
Hence a 95% confidence interval for the mean mercury content of coal from this source is 0.2172<x<0.2668.
If x = -3, and y = 2, evaluate the following:
4x^2
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Answer:
Evaluate the expression for the given values of x and y. x-y/x+y when x = 10 and y = 8
Is the following graph
an example of a linear
function?
Yes
No
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Answer:
no
Step-by-step explanation:
A linear equation is a straight line.
1
2
3
4
5
7
8
Which is the value of this expression when P=-2 and q=-17
(602Xa%) *.(60*10%)
OTE
Which is the value of this expression when p=-2 and a=-1
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Plsss help i will give brainliest
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Answer::
Tens: 7 Hundredths: 0 Ten Thousandths: 3
Step-by-step explanation:
The numbers before the decimal points don't have "-th" at the end, numbers after the decimal do.
Closest to the left of the decimal: ones, tens, hundreds, thousands....
Closest to the right of the decimal: tenths, hundredths, thousandths, ten thousandths....
can someone help me on this please
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Answer:
the answer is infinitely many solutions
Alpha Pharmaceuticals is manufacturing a new antibiotic. The amount of active substance in each pill is normally distributed with a mean of 20 mg and a standard deviation of 2.5 mg. What is the probability of a pill having more than 24.125 mg active substance?
Answers
Answer:
The probability of a pill having more than 24.125 mg active substance is 0.0495.
Step-by-step explanation:
Let X denote the amount of active substance in each pill.
It is provided that,[tex]X\sim N(20,\ 2.5^{2})[/tex]
Compute the probability of a pill having more than 24.125 mg active substance as follows:
[tex]P(X>24.125)=P(\frac{X-\mu}{\sigma}>\frac{24.125-20}{2.5})[/tex]
[tex]=P(Z>1.65)\\\\=1-P(Z<1.65)\\\\=1-0.95053\\\\=0.04947\\\\\approx 0.0495[/tex]
Thus, the probability of a pill having more than 24.125 mg active substance is 0.0495.
The boy has 45 apples and ate 6 bla bla bla
Answers
Answer:45-6=39
Step-by-step explanation:OKEI im sorry for asking, but askings what i do,can I have ur points so i can be more richer than u
2. The probability that a car will come to a complete stop at a particular stop sign is 0.4. Assume that the next four cars
arrive at the stop sign are independent of one another. Find each of the following probabilities:
a) None of the four cars come to a complete stop?
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Answer:
[tex]P(X = 0) = 0.1296 [/tex]
Step-by-step explanation:
This can be solved using the binomial distribution because the cars arriving at the stop are independent of each other. This means we will use:
[tex]P(X = x) = \binom{n}{x} p^{x} q^{n - x}[/tex]
Where p is the probability of success, q = 1 - p is the probability of failure and n is the number of cars sampled.
p = 0.4
q = 0.6
n = 4
Therefore,
[tex]P(X = 0) = \binom{4}{0} 0.4^{0} 0.6^{4}[/tex]
This is equal to
[tex]P(X = 0) = 1 \times 1 \times 0.1296 [/tex]
[tex]P(X = 0) = 0.1296 [/tex]
13 The perimeter of the rectangle is 64 in. Find the vaue of x.
22 in.
1
2x in.
Show Your Work
Answers
Answer:
10
Step-by-step explanation:
22+22=44
64-44=20
20/2=10
pleaseeee helppp me nowwww:(((
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Answer:
I can't see anything to read
Answer:
um
Step-by-step explanation:
explaino moreo
A lay office assistance gets 236.39 every two weeks. How much will they make in a year? Round to the nearest cent
Answers
Answer:
Step-by-step explanation:round the number then x it by 12
Answer:
$5673.36
Step-by-step explanation:
4 weeks in a month
12 months in a year
Therefore, they get paid twice in a month.
236.39 * 2(twice in a month) = 472.78 per month
Take this and times it by 12 since there are 12 months in a year.
472.78*12 = 5673.36
Could Someone PLEASE help me with this it is stumping me.
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9514 1404 393
Answer:
G 45
Step-by-step explanation:
If Z is the circumcenter, it is equidistant from the vertices T, U, V. That is, ΔZUV is an isosceles triangle and Y is the midpoint of UV.
If Y is the midpoint of UV, then UY = VY = 22.5, and UV = UY +VY = 45.
The length of UV is 45.
PLEASE HELP ITS TIMEDDDD
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Answer:
I'm not 100% sure but if I had to pick one I would go with B.
Step-by-step explanation:
Let me know if I'm correct if you decide to pick mine
Leslie and her friend eat lunch at a restaurant.
To determine how much money to leave as a tip, she multiplies the bill by 0.18.
How much money should she leave as a tip if the bill is $25?
Answers
$4.50
explanation:
Pls help I'll mark the brainliest to the person who answers first.
Answers
Answer:
C
Step-by-step explanation:
The quotient of a number and twelve plus four would be n/12 + 4 and not 12/n + 4
Answer:
C
Step-by-step explanation:
The quotient of a number and twelve plus 4 would be represented as n/12+4
please answer I need it
A-between hour 2 and 3
B-between hour 4 and 5
C-between hour 1 and 2
D-between hour 3 and 4
Answers
Answer:
A
Step-by-step explanation:
This is due to the fact that their is no gain. It just plateaus.
Answer:
A
Step-by-step explanation:
Sorry if I get this wrong I just thought it might be the slowest because it's going up in time but not distance.
Find the sum of the interior angle measures of the green polygon,
Then sum of the interior angle measures is
Answers
Answer:
The sum of interior angles of given polygon is 900°
Step-by-step explanation:
A regular polygon is a n-sided figure with n sides and the length of all sides is same.
In the diagram, we have a polygon with 7 sides.
The formula given is used to calculate the sum of interior angles of a polygon
[tex]Sum\ of\ interior\ angles = (n-2)*180[/tex]
Here n is the number of sides of polygon
In the given polygon
n = 7
So,
[tex]Sum = (7-2)*180 = 5*180 = 900[/tex]
Hence,
The sum of interior angles of given polygon is 900°
what is 6,691 ÷ 28
step by step
without a decimal
Answers
Answer:
238
Step-by-step explanation:
238.964286
238.964285714
Can anyone help me ASAP please? I will mark BRAINLIEST
Answers
Answer:
I think it's a triangle
Step-by-step explanation:
hope this helped
Answer:
Step-by-step explanation:
3x = x + 6
3x - x = 6
2x = 6
x = 6/2
x = 3
Hope this helps
plz mark as brainliest!!!!!!
The weight of water in a person’s body varies directly as his/her body weight. The body of 170-lb person contains about 119-lb of water. How much water is in the body of a person who weighs 120-lb?
Answers
Answer:
119-50 pounds = 69 so 169 pounds -step explanation: blood= weight (k)
Step-by-step explanation:
y=kx
2
4.6 = 170k
finding the constant of variation
3
k= 0.02875
4
equation relates quarts of blood to weight
5
RESULT
4.6 = 170k
y= 0.02875x
y= 0.02875(175)= 5.03125
Answer:
Ww=84 lb
Step-by-step explanation:
Proportions
A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:
y=k.x
Where k is the constant of proportionality.
The value of k is obtained by using the values of a specific point.
The weight of water Ww in a person's body varies directly as their body weight Wb as follows:
Ww=k.Wb
We are given a 170-lb person contains 119 lb of water. Substituting:
119=k.170
Solving for k:
k=119/170=0.7
The function is:
[tex]Ww=0.7\cdot Wb[/tex]
To find how much water is in the body of a 120-lb person, we substitute Wb=120:
[tex]Ww=0.7\cdot 120[/tex]
Ww=84 lb
Find the value of x.
54
79
Answers
Answer:
I believe it is 47 degrees
Step-by-step explanation:
Triangles add up to 180 degrees
54 + 79 = 133
180 - 133 = 47
Please help idk what to put for thisss
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Answer:
The distributive property tells us how to solve expressions in the form of a(b + c). The distributive property is sometimes called the distributive law of multiplication and division. ... Then we need to remember to multiply first, before doing the addition!
Step-by-step explanation:
