Answer:y+0=-2(x-0)
Step-by-step explanation:
g a box has a square base of side x and height h find the dimensions x, h for which the volume is 14 and the surface area is as small as possible
Answer:
Step-by-step explanation:
Base area =[tex]x^2[/tex]
side area=[tex]h*x[/tex]
Volume=[tex]x^2*h[/tex]=14
Surface area =[tex]4hx+2x^2[/tex]
upon substituting [tex]h=14/x^2[/tex]
surface area = [tex]4*\frac{14}{x^2}*x+2x^2[/tex]
upon differentiating and solving we get f"([tex]\sqrt[3]{14\\}[/tex]) >0 proves that this point is of minima
hence, dimensions are
[tex]x=\sqrt[3]{14}[/tex] ,h=[tex]\sqrt[3]{14}[/tex]
What 2 numbers that are the same make 2025?
Answer:
45
Step-by-step explanation:
Square root 2025 and you will get 45
45 times 45= 2025
Answer:
Step-by-step explanation:
If you are multiplying then 45 * 45 = 2025
If you are adding then 1012.5 + 1012.5 = 2025
Find the perimeter of the image below
Answer:
There isn't an image...
Step-by-step explanation:
Please help I am taking a test! I will reward brainiest if you are correct (the picture is attached) for number 11!!
Answer:
I confirm that the person above me is right.
Step-by-step explanation:
Enjoy your brainliest ;)
1. The weights of 20 year old vegetarian women are normally distributed with a standard deviation σ = 15 pounds. How large of a sample would be need to estimate the mean weight μ of 20 year old vegetarian women with a margin of error of 5 pounds with 95% confidence?
Answer:
34.5744 ≈ 35
Step-by-step explanation:
The formula for Margin of Error
= z × σ/√n
Where
z = z score of the confidence interval = z score of 95% = 1.96
σ = 15 pounds
n = number of samples = ??
Margin of Error = 5
Hence,
5 = 1.96 × 15/√n
Cross Multiply
5 × √n = 1.96 × 15
Divide both sides 5
√n = 1.96 × 15/5
√n = 1.96 × 3
√ n = 5.88
Square both sides
n = 5.88²
n= 34.5744
Approximately the size = 35
Solve for x.
2x-1+12=6x+3
Answer:
es pepo cumbia
o PVP TU PON LA SALA Y YO LA HUMILLACIÓN
Answer:
2x-1+12=6x+3
X = 2
Explain:
2x-1+12=6x+3
2x+11+6x+3
( 2x+11 )+(-11-6x)=(6x + 3) + (-11 - 6x)
so that means
X=2
A math professor wears for each class a combination of : one of their three hats (red, blue,green); one of their pants (black, blue, white, green); one of their shirts (white, red, black);and one of their pair of shoes (black, red, blue, white). They never wear combinations withthree items of the same color. How many different combinations are wearable?
Answer:
There are 36 ways in which he can wear combinations with three items of the different color.
Step-by-step explanation:
Hat Pants Shirts Shoes
red black red black
blue blue black red
green green white blue
white white
If we look carefully we see that he can choose any hat, any pant and any shirt but he can choose only one pair of shoes that does not match with any of the three.
3C1*4C1*3C1*4C4= 3*4*3* 1= 36
There are 36 ways in which he can wear combinations with three items of the different color.
The mean cost to repair the smoke and fire damage that results from home fires of all causes is $11,389 (HomeAdvisor website, December 2014). How does the damage that results from home fires caused by careless use of tobacco compare? The DATAfile named TobaccoFires provides the cost to repair smoke and fire damage associated with a sample of 55 fires caused by careless use of tobacco products. Using past years' data, the population standard deviation can be assumed known with σ = $3,027.
Answer:
The alternative is characterized in the interpretation section following the table, as per the case mentioned.
Step-by-step explanation:
According to the question:
The sample mean will be:
⇒ [tex]\bar{x}=\frac{\Sigma x}{n}[/tex]
[tex]=\frac{1050500}{55}[/tex]
[tex]=19100[/tex]
The critical value of z ([tex]z_e=1.96[/tex]) seems to be the 95 % confidence interval. So the required confidence interval will be:
= [tex]\bar{x} \ \pm \ x_{critical}\frac{\sigma}{\sqrt{n} }[/tex]
= [tex]19100 \ \pm \ 1.96.\frac{3027}{\sqrt{25} }[/tex]
= [tex]19100 \ \pm \ 800[/tex]
Consequently, the average cost of repairing flames and smoke injury can outcomes from household fires started by careless tobacco is therefore estimated at quite a 95 percent confidence interval ($18300, $19900). The 95 percent confidence interval indicates that the average estimated price of fires results through the use of tobacco is somewhat more costly than that of the average cost of flames results from across all factors that cause.The 95% confidence interval is ($18300 , $19900) and according to the confidence interval, the average estimated price of fires results through the use of tobacco is somewhat more costly than that of the average cost of flames results from across all factors that cause.
Given :
The mean cost to repair the smoke and fire damage that results from home fires of all causes is $11,389.Sample size, n = 55.The population standard deviation can be assumed known with σ = $3,027.First, find the sample mean by using the following formula:
[tex]\rm \bar{x}=\dfrac{\sum x}{n}[/tex]
[tex]\rm \bar{x}=\dfrac{1050500}{55}[/tex]
[tex]\rm \bar {x} = 19100[/tex]
Now, for 95% confidence level, the confidence interval will be:
[tex]= \rm \bar{x} \pm x_{critical} \dfrac{\sigma}{\sqrt{n} }[/tex]
[tex]\rm = 19100\pm 1.96\times \dfrac{3027}{\sqrt{55} }[/tex]
[tex]=19100\pm 800[/tex]
The 95% confidence interval is ($18300 , $19900).
According to the confidence interval, the average estimated price of fires results through the use of tobacco is somewhat more costly than that of the average cost of flames results from across all factors that cause.
For more information, refer to the link given below:
https://brainly.com/question/20747890
An open box is to be made from a ft by ft rectangular piece of sheet metal by cutting out squares of equal size from the four corners and bending up the sides. Find the maximum volume that the box can have.
Answer:
432 cm[tex]^{3}[/tex]
Step-by-step explanation:
The volume of the box can be determine by using derivative function:
V = (18 - 2x) (18 - 2x) x
dV/dx = 4x^3 + 324 + 144x
equating to zero;
(x - 9) (x - 3) = 0
x = 9 , 3
putting the values in the equation;
V = (18 - 2 [3]) (18 - 2[3]) 3
volume = 432.
what is the solution to 5/6x - 1/3 > 1 1/3?
A. x > 25/18
B. x < 25/18
C. x > 2
D. x < 2
Step-by-step explanation:
we are looking for the inequality of X
i can tell from this question that the first 2 are wrong, which leaves the last 2
first step, we add 1/3
5/6x> 1 2/3
now we divide 1 2/3 by 5/6 which gives us 2
taking a look at the sign posted in the question, i can confirm that C is correct
pls say if it is, i need to know fast
I’ll mark you as brainliest if correct!
Answer:
1.
Step-by-step explanation:
Plug -2 in for x for both functions.
[tex]2(-2)^{2} + 4 = 12\\-4(-2) + 3 = 11\\[/tex]
Now, subtract the two functions (f-g) (aka (f(x) - g(x))
12 - 11 = 1
The answer is 1.
The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answer as a whole number or fraction in simplest form.
Please help me 22 points and a THANK YOU WITH 5 STAR RATING:))))
Answer:
Scale factor = [tex] \frac{5}{4} = 1\frac{1}{4} [/tex]
Step-by-step explanation:
The scale factor is how much the right triangle on the right was increased in size or enlarged, since the right triangle is a scaled copy of the one on the left.
The scale factor used = the ratio of any of their corresponding sides
Scale factor = side length of the ∆ on the right ÷ corresponding side length of the ∆ on the left
Scale factor = [tex] \frac{15}{12} [/tex]
Scale factor = [tex] \frac{5}{4} = 1\frac{1}{4} [/tex]
The scale factor expressed as a fraction is 4/5
Since the right triangle on the right is a scaled copy of the right triangle on the left, then the ratio of their similar sides is equal to the scale factor.
This is expressed as:
Taking the ratio of the fractions
[tex]\frac{20}{25} = \frac{4}{5}[/tex]
Similarly for [tex]\frac{12}{15}[/tex]
[tex]\frac{12}{15} =\frac{4}{5}[/tex]
This shows that [tex]\frac{20}{25} = \frac{12}{15} = \frac{4}{5}[/tex]
Hence the scale factor expressed as a fraction is 4/5
Learn more here: https://brainly.com/question/9386516
What is the area of a triangle with vertices at (-3,3), (2, 3), and (4,7)?
5 square units
10 square units
20 square units
40 square units
Answer:
Choice B
Step-by-step explanation:
The area of the triangle is 10 square units, the correct option is B.
What is a Triangle?A triangle is a polygon with three sides, angles, and vertices.
The triangle is classified into various types on the basis of the angle and on the basis of equality of the length of the sides.
The vertices of the triangle are at:
(-3,3), (2, 3), and (4,7).
The area of the triangle has to be determined.
The length of the sides will be calculated using the distance formula.
side 1 = [tex]\rm \sqrt { (3-3)^2 + ( 2 +3)^2}[/tex] = 5 units
side 2 = 2√5 units
side 3 = √65 units
The height of the triangle is determined by calculating the distance from (4, 7) to (4, 3).
The height of the triangle = 4 units
The area of a triangle is given by,
A = (1/2) * base * height
A = (1/2) * 5 * 4
A = 10 square units
To know more about Triangle
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What is the opposite of the reciprocal of –2.4?
2.4 = 24/10 = 12/5
, 2.4 = 12/5 =5/12
Answer:
2.4
Step-by-step explanation:
And if your trying to find the hundredth it would be 0 and 0 is less than 4 so it goes down
I need help, I don’t get this math question. 2. Using exponents, what is the simplified form of 15x6/3x2
F. 5x4
G. 5x3
H. 5x
I. 5
Answer:
F. [tex] 5x^{4} [/tex]
Step-by-step explanation:
[tex] \dfrac{15x^6}{3x^2} = [/tex]
[tex] = \dfrac{3 \times 5}{3} \times \dfrac{x^6}{x^2} [/tex]
[tex] = 5 \times x^{6 - 2} [/tex]
[tex] = 5x^4 [/tex]
What is the largest three-digit number divisible by 5, 6, and 21?
Answer:
840
Step-by-step explanation:
You can divide by 5 and get 168
840/6 = 140
840/21 = 40
Answer:
The largest 3 digit number divisible by 5, 6, & 21 is 840.
Select the equation for the line parallel to y = -4x + 10 that
contains P(4,1).
Answer:
the third answer
Step-by-step explanation:
parallel lines will have the same slope (in this case -4) and you plug in the points
Based on this poll, find a 95% confidence interval to estimate the percentage of U.S. adults who feel that access to healthcare is the most urgent health problem facing this country. Interpret your interval in context.
Answer:
Confidence Interval Meaning, Implication, Formula
Step-by-step explanation:
95% confidence interval is the range around the stable estimate, which has 95% certainty (or probability) of containing true population parameter.
Formula : x' + z (s/ √n)
Where : x' = sample mean, confidence level value, s = standard deviation, sample size
By using sample size, sample mean, sample standard deviation of US people 'considering health care access most important' - & using above formula - range containing actual population proportion (with 95% sure probability) thinking the same.
What is Five less than twice a number
2w - 5
or 5 - 2w
2w - 5
This is the right expression
the residents of a city voted on whether to raise property taxes. the ratio of yes votes to no votes was 3 to 5 . if there were 1992 yes votes what wss the total
Solve
9x2-5x = 94x-8
Answer:
x=26262626262626...
Step-by-step explanation:
If (3x2 – 5x + 5y - 2) is subtracted from (2x” + x - 1), what is the coefficient of x in the result?
O A. 2
OB. 6
OC. 4
OD. -1
Ken builds a porch in the shape of an isosceles trapezoid.
What is the area, in square feet, of Ken’s porch?
Answer:
In square feet, Ken's porch is 180² ft.
Answer: 120
Step-by-step explanation:
Base x height / 2 (I think)
Write the equation of the line:
(-5,-3); slope = -3/5
Answer:
that is correct
Step-by-step explanation:
your welcome
Answer:
-3/5x+6
Step-by-step explanation:
I'm assuming they want it in slope-intercept form, because that's more common. If it's not then I will be wrong. See screenshot for proof.
Find the value of x that makes lines u and v parallel.
Please help!
Which number line represents all of the values of x for the equation x^2 = 64? (5 points)
Answer:
8
Step-by-step explanation:
x=8 because if you take the square root of 64 you get 8 so that means 8^2= 64
Answer:
C) I got it right
Step-by-step explanation:
The two parallelograms below are similar.
Answer:
C, 34 inches
Step-by-step explanation:
1. We can see that 30 is the length of one of the sides on the larger parallelogram. The same side has a length of 12 inches on the smaller one. So, we need the difference of these 2 to figure out PQ.
30 - 12 = 18 inches (the difference)
2. Add 18 to 16 (the bottom side on the small parallelogram) to figure out what the bottom side of the large parallelogram would be.
16 + 18 = 34 inches (answer C)
In physics, the Ideal Gas Law describes the relationship among the pressure, volume, and temperature of a gas sample. The law is represented with the formula PV = nRT, where P is the pressure, V is the volume, T is the temperature, n is the amount of gas, and R is a physical constant. Select all the equations that are equivalent to the formula PV = nRT. Group of answer choices
A. P = VnRT
B. R = PVnT
C. V = nRT / P
D. n = PV / RT
E. T = nR / PV
Also Theres Another Question
The temperature in degrees Kelvin is 273 degrees less than the temperature in degrees Celsius. Use the formula C = 5/9(F - 32) to write a formula for the temperature in degrees Fahrenheit F in terms of the temperature in degrees Kelvin K. A. F = 9/5(K - 273) - 32
B. F = 5/9(K + 273) + 32
C. F = 9/5C + 32
D. F = 9/5(K + 273) + 32
Also Please Answer My other Question I posted
Answer:
1. D and C
2. F = 9/5(k-273) + 32
Step-by-step explanation:
1. We simply want to write the given equation in different forms;
PV = nRT
So P = nRT/V
R = PV/nT
V = nRT/P
n = PV/RT
T = PV/nR
So the correct expressions are;
D, C,
2. we want to make F the subject of the formula, that would be;
C = 5/9(F - 32)
9C = 5(F - 32)
divide both sides by 5
9C/5 = F - 32
F = 9C/5 + 32
But K = C + 273
So C = K - 273
Insert this into the equation, we have
F = 9(K-273)/5 + 32
Solve ab - c= d for a
Answer:
a=(d+c)/b
Step-by-step explanation:
a*b-c=d
a*b=d+c
a=(d+c)/b
Answer:
c+d /b
Step-by-step explanation: