Answer:
50
Step-by-step explanation:
Answer: 50
Step-by-step explanation:
The perimeter of the square is 36. What is the length of the diagonal, x? HELPNPLZ FOR THE LOVE OF GOD
Answer:
D. [tex] 9 \sqrt{2} [/tex]
Step-by-step explanation:
Side length of square = Perimeter/4 = 36/4 = 9
Length of diagonal (x)
[tex] = length \: of \: side \sqrt{2} \\ \\ = 9 \sqrt{2} [/tex]
What is 674.649 rounded to the nearest tenth
Answer:
674.6
Step-by-step explanation:
If the hundreths place is 4 or less, then you stay the same in the tenths place, if it is 5 or more, you go up 1 in the tenths place
The functions f(x) and m(x) are graphed below. If m(x) = f(x) + k, what is the value of k
Answer:
k = m(x) - f(x)
Step-by-step explanation:
m(x) = f(x) +k
m(x) - f(x) = k
Marilyn buys pens that cost $12 per dozen. What is the cost of one pen?
$12.00
$24.00
$1.00
$1.20
Calculate a point estimate of the mean oxide thickness for all wafers in the population. (Round your answer to 3 decimal places.) (b) Calculate a point estimate of the standard deviation of oxide thickness for all wafers in the population. (Round your answer to 2 decimal places.) (c) Calculate the standard error of the point estimate from part (a). (Round your answer to 2 decimal places.)
This question is incomplete, the complete question is;
Data on oxide thickness of semiconductors are as follows: 425, 430, 414, 419, 421, 436, 418, 412, 430, 434, 423, 426, 408, 437, 435, 428, 412, 426, 409, 439, 422, 426, 414, 416
(a) Calculate a point estimate of the mean oxide thickness for all wafers in the population. (Round your answer to 3 decimal places.)
(b) Calculate a point estimate of the standard deviation of oxide thickness for all wafers in the population. (Round your answer to 2 decimal places.)
(c) Calculate the standard error of the point estimate from part (a). (Round your answer to 2 decimal places.)
Answer:
a) point estimate of the mean oxide thickness for all wafers in the population is 423.333
b) point estimate of the standard deviation of oxide thickness for all wafers in the population is 9.23
c) the standard error of the point estimate from part (a) is 1.88
Step-by-step explanation:
Given the data in the question;
x = 425, 430, 414, 419, 421, 436, 418, 412, 430, 434, 423, 426, 408, 437, 435, 428, 412, 426, 409, 439, 422, 426, 414, 416.
a)
To determine the mean;
we sum the total value divided by the sample size.
mean x" = (425 + 430 + 414 + 419 + ............... + 414 + 416) / 24
mean x'' = 10160/ 24
mean x" = 423.3333 ≈ 423.333
Therefore; point estimate of the mean oxide thickness for all wafers in the population is 423.333
b) standard deviation
we can determine the population standard deviation us the formula;
S.D(X) = √[ (ⁿ∑_[tex]_{i=1}[/tex] ([tex]X_{i}[/tex] - X")²) / n ]
= √[ {(425-423.3333)² + (430-423.3333)² +......+ (416-423.3333)² } / 24 ]
= √[ 1957.333 / 24 )
S.D(X) = 9.03
Note, the point of estimate of the variance population is biased estimate.
The unbiased point estimate of oxide thickness for all wafers in the population will be;
S.D(X) = √[ (ⁿ∑_[tex]_{i=1}[/tex] ([tex]X_{i}[/tex] - X")²) / (n-1) ]
= √[ {(425-423.3333)² + (430-423.3333)² +......+ (416-423.3333)² } / (24-1) ]
= √[ 1957.333 / 23 )
S.D(X) = 9.225 ≈ 9.23
Therefore, point estimate of the standard deviation of oxide thickness for all wafers in the population is 9.23
c) the standard error
SE (X") = S.D / √n
since the standard deviation is the unbiased estimate for the population, so;
SE (X") = 9.23 / √24
SE (X") = 1.884 ≈ 1.88
Therefore, the standard error of the point estimate from part (a) is 1.88
A cylinder has a base diameter of 6 centimeters and a height of 15 centimeters. What is its volume in cubic centimeters, to the nearest tenths place?
Please help
Step-by-step explanation:
V
≈
424.12
cm³
d
Diameter
cm
h
Height
cm
Find the slope of the line below. Help please!
Answer:
-3/2
Step-by-step explanation:
go up 3 and left 2
What is the distance between the two points? Use
the distance formula:
d= V(x2 – «1)? + (y2 – yı)?
Answer:
[tex]d= 3.61\ units[/tex]
Step-by-step explanation:
The points (missing) from the question are:
-2,1 and -5,3
Required
Evaluate [tex]d= \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2[/tex]
In the points given:
[tex](x_1,y_1) = (-2,1)[/tex] and [tex](x_2,y_2) = (-5,3)[/tex]
Substitute these values in [tex]d= \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2[/tex]
[tex]d= \sqrt{(-5 - (-2))^2 + (3 - 1)^2[/tex]
[tex]d= \sqrt{(-3)^2 + (2)^2[/tex]
[tex]d= \sqrt{9 + 4[/tex]
[tex]d= \sqrt{13[/tex]
[tex]d= 3.61\ units[/tex] -- approximated
Pls HELP I BEG YOUUUU
Answer:
x = 60
Step-by-step explanation:
(x+22) + (x+6) + (x-28) = 180
x + 22 + x + 6 + x - 28 = 180
x + x + x + 22 + 6 - 28 = 180
3x = 180
x = 180/3
x = 60
find the value of each variable in the parallelogram
Answer:
1. x = 15°
2. y = 12
Step-by-step explanation:
1. Determination of the value of x.
(5x – 5) + 110 = 180 (Adjacent angles add up to 180)
5x – 5 + 110 = 180
5x + 105 = 180
Collect like terms
5x = 180 – 105
5x = 75
Divide both side by 5
x = 75/5
x = 15°
2. Determination of the value of y.
3y – 4 = 2y + 8 (opposite sides are equal)
3y – 4 = 2y + 8
Collect like terms
3y – 2y = 8 + 4
y = 12
how many times does 9 go into 12?
Answer:
one time.
Step-by-step explanation:
convert 135 degrees into radians
Answer:
135° = 2.355 radStep-by-step explanation:
π rad = 180°1° = π/180 rad135° = 135π/180° rad135° = 135*3.14/180 rad135° = 2.355 radSolve for x: one over five (5x + 12) = 18 (5 points)
a
seventy-eight over five
b
one hundred-two over five
c
6
d
30
Step-by-step explanation:
(1x+12/5)=18
X=18-12/5
X=15..6
Answer:
hello
Step-by-step explanation:
Can you help if your are eligible to?
A college admits a freshman class of 330 students at the beginning of each academic year and graduates 145 students twice a year. What will be the net change in student population after 5 years?
Answer:
200 studentsStep-by-step explanation:
Change in one year:
330 - 2(145) = 330 - 290 = 40Change after 5 years:
40*5 = 200 studentsWhich of the following is the smallest element in the set of natural numbers?
-1
O 1
There is no smallest element; the set is infinite.
0
Answer:
your answer would be 0 mark as brainliest
The price of lunch in the school cafeteria was 2.50$ last year this year the price is 2.70$. What is the percent increase
Answer:
8 percent
Step-by-step explanation:
There is an 8 percent increase, because if you do 20 cents divided by 250 cents, you get 0.08, which is 8 percent. Also to double check, you can do 250 * 1.08. By the way, that is some rip off lunch.
Jeff invests $1000 in an account that pays 4.25% interest compounded monthly. How much will Jeff have in his account at the end of 4 years?
$1184.95
$1014.24
$5315.29
$1181.15
Answer:
1181.15
Step-by-step explanation:
How do I do problems like this????
Answer:
m<1 = 62°
m<2 = 45°
m<3 = 24°
Step-by-step explanation:
Hi!
Let me walk you through it!
The first step is to find angle 1.
Angle 1 is supplementary with the angle 118°
So we do 180° - 118° = 62°
m<1 = 62°
Then we find angle 2.
There are two ways to do this
The sum of interior angles in a triangle is 180°
So we do 180° - (73 + 62°)
Open parenthesis:
180° - 73° - 62° = 45°
You can also use the exterior angle theorem
118° = 73° + m<2
Same to both sides:
45° = m<2
So
m<2 = 45°
Now, using this information, we can find angle measure 3.
Now we look at the big triangle. Again, there are two ways to do this.
First way:
m<1 + 49° + m<2 + m<3 = 180°
Plug in known-values
62° + 49° + 45° + m<3 = 180°
Combine like terms:
156° + m<3 = 180°
Same to both sides:
m<3 = 24°
Second way:
Exterior angle theorem.
118° = m<2 + m<3 + 49°
Plug in known-values:
118° = 45° + m<3 +49°
Combine like terms:
118° = 94° + m<3
Same to both sides:
24° = m<3
So m<3 = 24°
There you go! You just need to take it step-by-step and you can get the answer. Be open-minded, don't just try to go for a certain angle, see what you can do, and work from there. It all comes together at the end.
Let me know if you have any questions, have a good day!
A student has to buy graph paper and printer paper. The graph paper, x, costs $2, while the printer paper, y, costs $3. She wants to buy at least 8 packs of paper but wants to spend at most $23.
Enter a system of inequalities for the given situation and select the graph of the system. Then determine if the point (3, 6) is a solution to the system.
The system of inequalities is _______ and ______
The point (3, 6)____ a solution because it _______lie in the region shared by the two inequalities, and it ______ satisfies both inequalities.
Answer:
8+3+23
Step-by-step explanation:
i need help due tonight
Answer:
Y=6
Step-by-step explanation:
5(6)+1=31
30+1=31
Answer:
y=6
Step-by-step explanation:
5y+1=31
simplify
5y=30
divide both sides by 5
y=6
In XYZ right angled at Y. find the length of the hypotenuse if the length of the other two sides is 1.6 cm and 6.3 cm.
9514 1404 393
Answer:
6.5 cm
Step-by-step explanation:
The Pythagorean theorem applies. You want c for a=1.6, b=6.3.
c² = a² +b²
c² = 1.6² +6.3² = 2.56 +36.69 = 42.25
c = √42.25 = 6.5
The length of the hypotenuse is 6.5 cm.
The diagram shows a 20 foot ladder leaning against a wall,”. The bottom of the ladder is 10 feet from the base of the wall. Based on these dimensions, what is the value of the x? HELP PLZ GOD HELP ME URGENT
Answer:
Step-by-step explanation:
Remember that the sides of a 30-60-90 triangle are in the ratio 1:√3:2
Since the horizontal leg is half the hypotenuse, it must be a 30-60-90 triangle, and x° = 30°
What is the formula you would use to find the area of a triangle? Explain how that formula is related to the area formula for a rectangle.
Answer:
1/2 b*h
Step-by-step explanation:
for rectangle it is b*h means double of that traingle
The coordinate plane shows the graphs of two exponen functions which equation is true?
Answer:
A
Step-by-step explanation:
simplify 4x-7y-5n+6 .
Answer:
The answer is -5n + 4x - 7y + 6
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Brainly, Please?
In the pet show, 3/8 of the pets are dogs. Of the dogs, 2/3 have long hair. What fraction of the pets are dogs with long hair?
NEED NOW I WILL GIVE YOU BRAINLISET
Solve for x
-14 + 6b + 7 - 2b = 1 + 5b
b = -8
Hope I helped!!!!!!
13. A glass fish tank in the shape of a rectangular prism has a base that measures 22 inches by
12 inches. If the tank can hold a maximum of 3,960 cubic inches of water, how much glass
was used to construct the tank?
SA 2B+L
SA-alaw)+PH
37
ty
Answer:
Step-by-step explanation:
area of base = 22in×12in = 264 sq in
Height of tank = volume/(base area) = 3960/264 = 15 inches
Lateral area = 2(22 × 15) + 2(12 × 15) = 660+360=1020 sq in
Surface area = base area + lateral area= 264+1020=1284 sq in
What is the value of the following expression when b = -2 and C = 3? -12b + 5c - 15
Answer:
-24
Step-by-step explanation:
12(-2)+5(3)-15
-24+15-15
-24+15
-9-15
= -24