Answer:
- 23/36
Step-by-step explanation:
Make sure both fractions of the denominators are the same.
1 x 4 = 4
9 x 4 = 36
3 x 9 = 27
4 x 9 = 36
Final: 4/36 - 27/36 = - 23/36
GIVING BRAINIEST to who ever answers hurry
Answer:
x=10
Step-by-step explanation:
50+x=6x
-x -x
50=5x
/5 /5
x=10
In an effort to determine the most effective way to teach safety principles to a group of employees, four different methods were tried. Some employees were given programmed instruction booklets and worked through the course at their own pace. Other employees attended lectures. A third group watched a television presentation, and a fourth group we divided into small discussion groups. A high of 10 was possible. A sample of 5 tests were selected from each group. The results were: Sample Programmed Instruction Lecture TV Group Discussion 1 6 8 7 8 2 7 5 9 5 3 6 8 6 6 4 5 6 8 6 5 6 8 5 5 At the 0.01 level, what is the critical value
Answer:
critical value = 5.29
Step-by-step explanation:
Given that they are divided into 4 groups and a sample of 5 test was selected
N = 5 * 4 = 20
k = 4
∝ = 0.01
Df for numerator ( SS group )= k - 1 = 3
Df for denominator ( SSE group ) = N - k = 20 - 4 = 16
DF ( degree of freedom )
Next we will use the F table to determine the critical value
Critical value = [tex]F_{16,3,0.01}[/tex] = 5.29
Find all complex solutions of the equation z⁴-1-i=0.
Answer:
Step-by-step explanation:
hello :
z⁴=1+i given : z² = t t is the complex number so : z⁴= (z²)² =t²
solve for t this equation : t² = 1+i
if : t = x+iy t² =(x+iy)² = x²+2xiy+(iy)² =x²-y²+2xyi ...... ( i² = -1)
t² = 1+i means : x²-y²+2xyi = 1+i
you have this system : x²-y² = 1.....(*)
2xy = 1.....(**)
slve for x and y you ca add this equation : ....(***)
( use : t² = 1+i
/t²/ = /1+i/ so :/t/² = /1+i/ .... (√(x²+y²))²=√(1²+1²) =√2 means x²+y² = √2)
the system is : x²-y² = 1.....(*)
2xy = 1.....(**)
x²+y² = √2 ....(***)
add (*) and (***) : 2x²= 1+√2
x² = (√2+1)/2
substrac (*) and (***) you have : y² = (√2-1)/2
use (**) the proudect xy is positif (same sign) so :
x=√( (√2+1)/2) and y = √( (√2-1)/2) so : t1 =√( (√2+1)/2)+i√( (√2-1)/2)
x= -√( (√2+1)/2) and y = -√( (√2-1)/2) so :t2= -t1
same method for equation : z² =t1 ..(2 solution ) and z² = t2..(2 solution )
Why does my explosive diarrhea have 300 different colors?
Answer:
Because you ate too many random things that makes 300 different colors
Step-by-step explanation:
yes i think
what's a 3 number multiplication that = 1000?
Answer:
1,1, and 1000
Step-by-step explanation:
Answer:
(10 x 10) x 10 = 1000
Step-by-step explanation:
10 x 10 = 100
100 x 10 = 1000
Find the GCF of the terms of the polynomial
Answer:
7z³
Step-by-step explanation:
7z³
[tex]\huge\boxed{Hi\:there!}[/tex]
To find the GCF of the polynomial, all we have to do is spot the common factor of all the terms of the polynomial.
21z⁵-42x⁴+14z³
The common term is
7z³
If we factor 7z³ out, we'll get
z³(3z²-6z+2)
[tex]\huge\boxed{\sf{Hope\:this\:helps!}}\\[/tex]
[tex]\huge\bold{Good\:luck!}[/tex]
[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]
PLEASE. ITS DUE IN 10 minutes. Anyoneeee
Answer:
-4.25
Step-by-step explanation:
Y = -4
Z = ?
-4Z = 17
Z = -4.25
15 + z = 17.04
What is Z?
Answer:
2.04
Step-by-step explanation:
To find this we have to subtract 15 from both sides.
15 + z = 17.04
-15 -15
z = 2.04
A farm is sold for €457 000, which gives a profit of 19%. Find the profit
Answer:
103453.17
Step-by-step explanation:
19% of 457,000 is 86,830 euros and use conversion rate to get a profit of 103453.17
What is the probability of rolling a number greater than or equal to 8 with the
sum of two dice, given that at least one of the dice must show a 6?
======================================================
Explanation:
I'll represent the dice results as an ordered pair. Something like (6,2) means the first die is a 6 and the second is a 2. The sum being 6+2 = 8.
There are only two ways to get to a sum of 8, and those two ways are:
(6,2)(2,6)Here are other possibilities if we allow the sum to be larger than 8
(6,3)(6,4)(6,5)(6,6)(3,6)(4,6)(5,6)(6,6)You should find that there are a total of 10 ways to have two dice add to a value that is 8 or larger, given that at least one of the dice must be a 6.
This is out of 6*6 = 36 ways to roll two dice without such a restriction. The probability we're after is 10/36 = (2*5)/(2*18) = 5/18
Side note: 5/18 = 0.2778 = 27.78% approximately
PLEASE HELP!!!
The probability distribution for the number of defective lava lamps a factory produces is shown in the table. Find the expected number of defective lava lamps in a week.
X 0 1 2 3 4 5 6
P(X) .01 .05 .15 .21 .22 .30 .06
Answer:
The expected number of defective lava lamps in a week is 3.72.
Step-by-step explanation:
To find the expected number of defective, we multiply each outcome by its probabilities.
The probability of each outcome is:
P(X = 0) = 0.01
P(X = 1) = 0.05
P(X = 2) = 0.15
P(X = 3) = 0.21
P(X = 4) = 0.22
P(X = 5) = 0.3
P(X = 6) = 0.06
Expected number:
Multiplying each outcome by its probability:
E(X) = 0*0.01 + 1*0.05 + 2*0.15 + 3*0.21 + 4*0.22 + 5*0.3 + 6*0.06 = 3.72
The expected number of defective lava lamps in a week is 3.72.
f(x) = 3x + 5 g(x) = 4x2 – 2 h(x) = x2 – 3x + 1 Find f(x) – g(x) – h(x)
Step-by-step explanation:
this is the answer
hope it helped!!!
CAN SOMEONE PLZ ANSWER THIS ITS DUE AT 11:59 APRIL 11 2021 AND ILL MARK U BRAINLIST
Answer:
answer is c
Step-by-step explanation:
Answer:
c. 586.2
Step-by-step explanation:
add all areas together:
127.2 for semi circle on right
22x18=396 for middle square
7*9=36 for 2 triangles on left
The volume of the polyhedron is ______ cm3.
Answer:
Volume = 144 cm³
Step-by-step explanation:
Volume of the polyhedron = volume of triangular prism = ½*b*h*l
Where,
b = 4 cm
h = 6 cm
l = 12 cm
Substitute
Volume = ½*4*6*12
Volume = 144 cm³
9.3+b=−42 , you would subtract 9.3 to isolate the variable.
Answer:
yeh you are correct so it will be b is equal to minus 42 minus 9.3 that will be equal to -51.3 so that is the value of b
Point B, located at (-4,-7), is reflected over the y-axis. What are the coordinates of B?
A. (-4, 7)
B. (4, -7)
C. (4, 7)
D. (-4, -7)
Answer:
A
Step-by-step explanation:
In a certain village of Nepal, all the people speak either Nepali, or Maithili
, or
both the languages. If 60% of them speak Nepali and 80% of them speak
Maithali, how many of them (%) speak both the languages?
Given,
Nepali speaker : 80% (Y)
Maithili speaker : 60% (X)
We know that,
Both language speaker = Y -X
Now,
Y- X
= 80- 60
= 20
Therefore, 20% people speak both languages
4 3/6 + 1/4 simplify your answer
Answer:
4 3/4 is the mixed form
hope this helps!
What is the value of k?
k = 28
k = 29
k = 31
k = 42
Answer:
k=29
Step-by-step explanation:
we know that
-------> by supplementary angles
Solve for k
Combine like terms in the left side
Substract both sides
Divide by both sides
therefore
the answer is the option
B
giving brainliest!! easy
pls answer asap
How do I simplify this radical?
Answer:
Step 1: Find the prime factorization of the number inside the radical. Step 2: Determine the index of the radical. In this case, the index is two because it is a square root, which means we need two of a kind. Step 3: Move each group of numbers or variables from inside the radical to outside the radical.
The frequency table represents the job status of a number of high school students. A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for job with entries 12, 38, 50. The third column is labeled not looking for a job with entries 28, 72, 100. The fourth column is labeled total with entries 40, 110, 150. Which shows the conditional relative frequency table by column? A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for a job with entries 0.3, nearly equal to 0.33, 1.0. The third column is labeled not looking for job with entries 0.7, nearly equal to 0.65, 1.0. the fourth column is labeled total with entries nearly equal to 0.27, nearly equal to 0.73, 1.0. A 4-column table with 3 rows titled job status. The first column is blank with entries currently employed, not currently employed, total. The second column is labeled Looking for a job with entries 0.12, 0.38, 050. The third column is labeled not looking for a job with entries 0.28, 0.72, 1.00. The fourth column is labeled total with entries 0.4, 1.1, 1.5. A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for a job with entries 0.24, 0.76, 1.0. The third column is labeled not looking for a job with entries 0.28, 0.72, 1.0. The fourth column is labeled total with entries nearly equal to 0.27, nearly equal to 0.73, 1.0. A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for job with entries 0.08, nearly equal to 0.25, nearly equal to 0.33. The third column is labeled not looking for a job with entries nearly equal to 0.19, 0.48, nearly equal to 0.67. The f
Answer:
C on edge
hope this helps
Step-by-step explanation:
The answer was C for me on Edg.
What is the solution to this inequality?
2(x-4) + 14 < x-1
O A. 1
O B. x>-7
C. -3 < x < 1
The solution of the inequality 2(x - 4) + 14 < x - 1 is:
x < -7
How to solve the inequality?Here we have the following inequality:
2(x - 4) + 14 < x - 1
To solve it, we need to isolate the variable in one of the sides, so let's do that.
Expanding the right side we will get:
2x - 8 + 14 < x - 1
2x + 6 < x - 1
Now group like terms:
2x - x < - 1 -6
x < -7
That is the solution.
Learn more about inequalities at
https://brainly.com/question/24372553
#SPJ1
Solve for x.
Question 4 options:
A)
8
B)
–8
C)
9
D)
–9
Answer:
x = -9
Step-by-step explanation:
Given:
BC = x + 19
ST = x + 29
Required:
Value of x
Solution:
Midsegment theorem states that the midsegment of a triangle = ½ of the length of its third side
Thus:
BC = ½(ST)
Substitute
x + 19 = ½(x + 29)
Multiply both sides by 2
2(x + 19) = x + 29
2x + 38 = x + 29
Collect like terms
2x - x = -38 + 29
x = -9
Solve the equation 6(7-9w)-4w
Rearrange:
6(-9w+7)-4w
Distribute:
-54w+42-4w
Combine the like terms:
-54w-4w
-58w
So, you get...
-58w+42
can someone pls help me
Answer:
B. 7Step-by-step explanation:
AB is a tangent to circle o
ABO is a right-angled
AO²=AB²+BO²
[tex]BO=\sqrt{AO^{2}-(AB)^{2})\\}\\\\\sqrt{(8.6)^{2}-(5)^{2} } \\\\=\sqrt{73.96-25} \\\\=\sqrt{48.9} \\\\=6.99\\\\Answer=7[/tex]
hope it helps....
have a great day :)
Can someone plz help me with my question I will pAaay you
Answer:
sure what is it
Step-by-step explanation:
Well, it depends on the question!!
(comment it if you need me to answer it)
THE TOPIC IS: AREA OF CIRCLES!! PLEASE HELP ME WITH THIS QUESTION!!! WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS!!! AND PLS PUT AN EXPLANATION!! THANK YOU GUYS SO MUCHHHH!! CAN YOU PLEASE DO BOTH OF THESE!!!
Step-by-step explanation:
8) Area of circle =
[tex]\pi {r}^{2} [/tex]
Radius = 1/2 of diameter (Diameter = 2x radius)
Radius = 1/2 × 10 in = 5 in.
Area of circle =
[tex]\pi {5}^{2} = 25\pi {in}^{2} [/tex]
11) Radius = 1/2 × 6m = 3m
Area of Circle =
[tex]\pi {3}^{2} = 9\pi {m}^{2} [/tex]
Note that I will leave both answers in terms of pi as I am not sure how you want to leave your answer as.
Answer:
area = πr×r
r = d/2
area = π (d/2)×(d/2)
so for problem 8,
area = pi×5×5 = 25π = 78.539 inches squared
continue the same logic for the next questions
suppose you scored a 99%, 67%, 83%, and 86% on your last four science tests. if your next text counts twice, is it possible to average a 90%? explain your answer.
Answer:
If you get the maximum grade in the last test, your average grade will still be below 0.9 = 90%, which means that it is not possible to average a 90%.
Step-by-step explanation:
Average grade:
The average grade is given by the sum of all averages, divided by the number of tests.
In this question:
99%, 67%, 83%, and 86%.
Next test counts twice, which means that in total, there are 6 tests.
Is it possible to average a 90%?
The maximum grade in a test is 100% = 1. I will calculate the average grade you get a 100% on the last test, which is worth 2. So
[tex]M = \frac{0.99+0.67+0.83+0.86+2*1}{6} = \frac{5.35}{6} = 0.892[/tex]
If you get the maximum grade in the last test, your average grade will still be below 0.9 = 90%, which means that it is not possible to average a 90%.
What is the area of the figure show
• below?
-30 ft-
15 ft
- f
1551
A 315 f12
B 225 fra
C 180 ft2
D 90 fre?
Answer:
315 ft²
Step-by-step explanation:
•Split the shape into a triangle and a square.
•A=bh so 15*15=225 (area of square)
•Since the height of the square is 15, subtract given height of 3 from 15 which is 12 and that is the base of triangle.
• To find the height, subtract 15 since the base is equal to the top side.
•A=1/2bh for triangles so 1/2(15)(12) is 90.
•Add 225 and 90 then boom. 315ft²