Answer:
0.2690 kg
Step-by-step explanation:
Given that:
For cutting a 4.5 kg block of cheese; the standard deviation:
[tex]S_x = 0.1 \ kg[/tex]
For a large no of blocks, at 95% confidence level;
Using the t table; where the degree of freedom is infinity or > 30
t-distribution (t) = 2
∴
[tex]P_x = tS_x[/tex]
[tex]P_x = 2 \times 0.1[/tex]
[tex]P_x = 0.2 \ kg[/tex]
The system uncertainty as a result of the accuracy [tex]B_x[/tex] is:
[tex]B_x = 1.5\% \ of \ reading[/tex]
[tex]B_x = (\dfrac{1.5}{100})(12 kg)[/tex]
[tex]B_x = 0.18 \ kg[/tex]
The total uncertainty for a single experiment with a 95% confidence interval will be:
[tex]w_s = ( B_x^2 + P_x^2)^{\frac{1}{2}[/tex]
[tex]w_s = (0.18^2 + 0.2^2)^{\frac{1}{2}[/tex]
[tex]\mathbf{w_s = 0.2690 \ kg}[/tex]
Solve.
−8y ≥ 56
y ≤ 7
y ≥ 7
y ≥ –7
y ≤ −7
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Answer:
(d) y ≤ -7
Step-by-step explanation:
The solution is found by dividing by the coefficient of y. Since that is a negative number, the sense of the comparison is reversed.
-8y ≥ 56
(-8y)/(-8) ≤ 56/(-8)
y ≤ -7
find product of 5/12×6
Answer:
2 and 1/2
Result in decimals: 2.5
Step-by-step explanation:
5/12 × 6/1 = 5/2 = 2 and 1/2
Result in decimals: 2.5
Calculation steps:
5/12 × 6/1 = (5 × 6)/(12 × 1) = 30/12
30 ÷ 6 = 5
12 ÷ 6 = 2
= 5/2
= 2 and 1/2
Amy is x years old. Jennifer is 5 years older than Amy. Their father is 4 times as old as Jennifer. Write an expression to represent the fathers age. Then write an expression to represent the sum of their ages. Make sure your final expresson is simplifed.
Answer:
Refer to explanation below^
Step-by-step explanation:
Amy = x
Jennifer = x + 5
Father = x + 5 x 4 = 4x + 5
Total = 4x + 5 + x + 5 + x = 6x + 10
4/5 times 1/2 WHOEVER ANSWERS IN UNDER 2 MINUTS I WILL MARK BRAINLIEST
Answer:
2/5
Step-by-step explanation:
4/5*1/2
=2/5
How many years will it take James to recover his investment?
what is the common denominators for 2/4 and 7/8
Answer:
8
Step-by-step explanation:
four and eight are both factors of 8.
NEED HELP WITH GEOMETRY
Answer:
Please look down below
Step-by-step explanation:
∠1 + 69 + 47 = 180 (because straight line)
∠1 = 180 - 116
∠1 = 64
∠2 + ∠1 + 63 = 180 (because triangle)
∠2 + 64 + 63 = 180
∠2 = 180 - 127
∠2 = 53
∠3 + ∠1 = 180 (because straight line)
∠3 + 64 = 180
∠3 = 116
∠5 = ∠4 (given)
∠5 + ∠4 + ∠3 = 180
Denote ∠5 and ∠4 as x, so 2x
2x + ∠3 = 180
2x + 116 = 180
2x = 64
x = 32
∠5 = 32, ∠4 = 32
∠6 + 136 = 180 (because straight line)
∠6 = 44
∠7 + ∠6 + 47 = 180 (because triangle)
∠7 + 44 + 47 = 180
∠7 = 180 - 91
∠7 = 89
Solve for X
-8 - x = x - 4x
Answer:
−8−x=x−4x
Step 1: Simplify both sides of the equation.
−8−x=x−4x
−8+−x=x+−4x
−x−8=(x+−4x)(Combine Like Terms)
−x−8=−3x
−x−8=−3x
Step 2: Add 3x to both sides.
−x−8+3x=−3x+3x
2x−8=0
Step 3: Add 8 to both sides.
2x−8+8=0+8
2x=8
Step 4: Divide both sides by 2.
2x
2
=
8
2
x=4
Answer:
x=4
x = 4
Hope I helped!!!!!!!
Can someone help me out
Answer:
1) -6/-10=3/5
2) -27/10x75/18 = -2025/180 = -135/12 (or) -11 1/4 (or) -11.25
3) 7+8-9=6
4) Billions
5) No, because you can't take a negative number of classes
Step-by-step explanation:
1) -6/-10=3/5
2) -27/10x75/18 = -2025/180 = -135/12 (or) -11 1/4 (or) -11.25
3) 7+8-9=6
4) Billions
5) No, because you can't take a negative number of classes
3k - 14 = 3(k – 5) +1 one solution, no solution, or infinite solution
The line across which a figure is flipped is called the line of transformation.
True
False
Answer:
True
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
Use mental math, estimation, and the division algorithm to evaluate the expressions.
What is the answer ?
118.4 divided by 6.4 ?
Answer:
18.5
Step-by-step explanation:
I think it’s A but I need help double checking!
Which of the following points is between 50 and 60 units away from (7, -2)?
a) (23,4)
b) (14,-6)
c) (60,-2)
d) (-1,9)
Im pretty sure the answer is c.
The tables show the amount earned by James and Paco working at the same store.
James's Hours Amount Earned
3 $35.40
5 $59.00
8 $94.40
Paco's Hours Amount Earned
2 $24.00
4 $48.00
7 $84.00
What are the two equations that can represent James and Paco's hourly wages, where h is the number of hours worked and d is the amount of money earned?
Compare the equations to determine if there is any difference between what James and Paco make each hour.
its pacos hour because as you can see he makes more i just know trust me its pacos
7/8 - 3/8 gvvgmhfjfjfff.f,hvh .I niece answer
(x - 5)2 + (y-(-3))2 = 34 (x - 5)2 + ( + 3)2 = 34 Exercises 12.2 Complete the following: 1. Find the equation of the circle having the given center and ra (a) C(0,0), r= 3 (c) C(4, 3), r = 5 (d) C(2, (b) C(-2.
Answer:
Step-by-step explanation:
The general equation of the circle
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Center = c = (h,k) , radius = r
if C = (0,0) , r = 3
The equation will be :
(x-0)^2+(y-0)^2=3^2
[tex]x^2+y^2=9[/tex]
A farmer planted corn in a square field. One side of the field measures 33 yards. What is the area of the cornfield?
Answer:
the answer is 1,089 since 33x33=1,089.
Step-by-step explanation:
A= x^2 x being the length of one of the sides, since all sides are the same.
The question is in the attachment
Answer:
120
10 12
2 5 2 6
2 3
150
10 15
2 5 3 5
Step-by-step explanation:
120= 2x2x2x3x5
150= 2x3x5x5
Multiply all the common prime factors.
2x3x5
HCF= 30
A survey shows that three out of every five teenagers at a particular school with cell phones use text messaging. In a group of 90 teenagers, how many would you expect use text messaging? 34 54 56 150
Answer:
Out of a group of 90 there would be 54 messaging
Step-by-step:
messaging is a weird word
1.Encuentra de dos formas diferentes el área de las figuras mostradas en cada literal:
Answer:
Cuadrilátero A: [tex]A = y^{2}+4\cdot y +4[/tex]
Cuadrilátero B: [tex]A = a^{2}+6\cdot a + 9[/tex]
Step-by-step explanation:
Existen dos formas distintas de determinar las áreas de cada cuadrilátero:
(i) Obtener el área de cada cuadrado y sumar los resultados.
(ii) Calcular los lados del cuadrilátero grande y determinar el área.
Cuadrilátero A
Método (i)
[tex]A = y^{2}+2\cdot y +4+2\cdot y[/tex]
[tex]A = y^{2}+4\cdot y +4[/tex]
Método (ii)
[tex]A = (y+2)\cdot (y+2)[/tex]
[tex]A = y^{2}+4\cdot y + 4[/tex]
Cuadrilátero B
Método (i)
[tex]A = a^{2}+3\cdot a +9 + 3\cdot a[/tex]
[tex]A = a^{2}+6\cdot a +9[/tex]
Método (ii)
[tex]A = (a+3)\cdot (a+3)[/tex]
[tex]A = a^{2}+6\cdot a + 9[/tex]
At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.
A tree diagram. Random student studies for test is 0.6, and does not study for test is 0.4. Studies for test to Gets B or higher is 0.55; does not get B or higher is 0.45. Does not study for test to Gets B or higher is 0.20; does not get B or higher is 0.80.
The professor informs the class that there will be a test next week. What is the probability that a randomly selected student passes the test with a B or higher?
0.33
0.41
0.55
0.75
Answer:
i think it is 0.33 probably wrong
Step-by-step explanation:
i am proably wrong
-|3| and |-3| are the same they both equal 3
Plz help me with this I’m stuck
Answer:
I belive the answer to this is D or A
Step-by-step explanation:
But I strongly think its A
Answer:
The answer is A
Here is a pattern of squares:
Step 1
Step 2
Step 3
Write an equation to represent the relationship between the step number and the
number of squares in the pattern.
Briefly describe how each part of the equation relates to the pattern.
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Answer:
y = n^2 +nupper left corresponds to n^2; lower right corresponds to nStep-by-step explanation:
The number of squares in the upper left portion of the figure is the number in a square n on a side, so is n^2. The number of squares in the lower right portion of the figure is equal to the step number, n. A suitable equation adds these numbers together.
y = n^2 +n . . . . where y is the number of squares in the pattern of Step n.
Answer:Your answer is...
Step-by-step explanation:
y = n^2 +n
Which of the following is not a function
{(-1,-2), (0, -3),(1,-2), (2,1)}
{(-1,-2), (0, -3), (1, -2), (2, 1)
{(-2, 2), (-1,1),(0,0),(1,1)}
{(-2,0), (2,2), (2, -2), (7,3)}
Answer:
The final set is not a function.
Step-by-step explanation:
There are two x-values that are the same, making it not a function. Notice, this is not the same in the other sets, because each x corresponds to exactly one y-value in the other functions.
You do not need to draw the line of best fit, I just need the answers for the rest. Thanks!
Answer:
c
Step-by-step explanation:
Combine like terms in expression below
2f + 9e - f + 3e
Answer:
12e + f
Step-by-step explanation:
2f - f = f
9e + 3e = 12
....
Answer:
f + 12e
Step-by-step explanation
(+2f) + (+9e) + (-f) + (+3e)
(2f) + (-f) = 1f or f
9e + 3e = 12e
f + 12e
Please, please, please, please help
To ride a horse at the state fair costs $2 per minute. Paolo buys a 16-minute ride. Next time, he plans to ride 25% longer. How much will he pay?
Answer: $2.50
Step-by-step explanation: 2/16 to find what it cost for one minute. 16*1.25 because he is riding 25% more. (16*1.25) *.125
.125 if the amount for 1 minute
