Answer:
time = .8 hours distance = 4km
Step-by-step explanation:
Answer:
The First on is 0.8 hours
The seconded one is 4 km
robert has a piece of rope 12 1/2 feet long. he cut rope into pieces that are 1 1/4 feet long. How many of the shorter pieces will he have?
Answer:
divide 25.5 by 6
or change them to fractions
51/2 divided by 6 = 51/2 x 1/6 = 51/12 = 4 3/12 = 4 1/2 feet each
Step-by-step explanation:
Answer:
He will have 10 shorter pieces
To find this, divide 12.5 from 1.25
To check your answer, multiply the answer, 10, by 1.25 and you should get 12.5.
Hope this helped
Which of the following is correct? Multiple Choice When the sample size increases, both α and β may decrease. Type II error can only occur when you reject H0. Type I error can only occur if you fail to reject H0. The level of significance is the probability of Type II error.
Answer:
(A) When the sample size increases, both α and β may decrease.
Step-by-step explanation:
Which of the following is correct?
(A) This option is right.
When a sample's size increases, the values for alpha and beta may decrease; if and only if sample size is the denominator in the slope equation (in each case) and the numerator stays the same (that is, ceteris paribus; all other things being equal). The larger the denominator, the smaller the slope value for alpha and beta.
(B) This option is wrong
Type 2 error can only occur when you fail to reject a true H0
(C) This option is wrong
Type 1 error can only occur if or when you don't reject a false H0
(D) This option is wrong
The level of significance is the probability of a Type 1 error, not the probability of a Type 2 error.
Expression equivalent to 96+60
Answer:
60+96
156
Step-by-step explanation:
In one region, the September energy consumption levels for single-family homes are normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. For a randomly selected home, find the probability that the September energy consumption level is between 1100 kWh and 1225 kWh.
a. 0.1971
b. 0.3791
c. 0.2881
d. 0.0910
e. 0.8029
Answer:
a. 0.1971
Step-by-step explanation:
Z score is used to measure by how many standard deviations the raw score is above or below the mean. It is given by the formula:
[tex]z=\frac{x-\mu}{\sigma}\\ \\Where\ \mu=mean, x=raw\ score, \sigma=standard\ deviation[/tex]
Given that:
μ = 1050 kWh, σ = 218 kWh
For x = 1100 kWh
[tex]z=\frac{x-\mu}{\sigma}=\frac{1100-1050}{218} =0.23[/tex]
For x = 1225 kWh
[tex]z=\frac{x-\mu}{\sigma}=\frac{1225-1050}{218} =0.80[/tex]
From the normal distribution table, P(1100 < x < 1225) = P(0.23 < z < 0.8) = P(z < 0.8) - P(z < 0.23) = 0.7881 - 0.5910 = 0.1971
Show all you work plzz
Answer:
[tex]-16+40k[/tex]
Step-by-step explanation:
[tex]8\left(-2+5k\right)[/tex]
Use the distributive law: [tex]a(b+c)=ab+ac[/tex]
[tex]8\times\left(-2\right)+8\times5k[/tex]
[tex]-16+40k[/tex]
What is the answer to 54<45+3
Answer:
54<48
Step-by-step explanation:
If you add 45+3, you get 45.
Hope this helped.
Which statement is true regarding the graphed functions?
On a coordinate plane, a red curved line with an upward arc, labeled g of x, crosses the x-axis at (negative 2, 0), and the y-axis at (0, 4). A blue curved line with an upward arc, labeled f of x, crosses the y-axis at (0, 4) and the x-axis at (2, 0).
Answer:
B
Step-by-step explanation:
I take p a p algebra
Answer:
f(0)=g(0)
Step-by-step explanation:
2020 Edg.
A factory that makes can openers has fixed costs for building, fixtures, machinery, etc. of $26,000. The variable cost for
material and labor for making one can opener is $2.75.
What is the total cost of making 20,000 can openers?
Answer:
I think it's B 81,000
Step-by-step explanation:
20000 x 2.75 is 55000
55000 + 26000 is 81000
Answer:is B
Step-by-step explanation:
COEFFICIENT IN THE TERM 20 IS ?
Class Scheduling Enormous State University's Math Department offers two courses: Finite Math and Applied Calculus. Each section of Finite Math has 80 students, and each section of Applied Calculus has 70 students. The department will offer a total of 150 sections in a semester, and 11,200 students would like to take a math course. How many sections of each course should the department offer in order to fill all sections and accommodate all of the students
Answer:
70 section of Finite math and 80 section of Applied calculus
Step-by-step explanation:
As in each section, finite math has 80 student and applied calculus has 70 students
80x + 70Y = 11,200................(i)
There are 150 sections in a semester
x + y = 150..................................(ii)
Multiply equation (ii) by -70
-70x - 70y = 10,500
Add equation (i) and equation (iii)
80x + 70Y = 11,200
-70x - 70y = 10,500
10x = 700
x = 700/100
x= 70
Substitute x in equation (ii)
x + y = 150
70 + y = 150
y = 150 - 70
y = 80
Hence, 70 section of finite math and 80 section of applied calculus should the department offer in order to fill all sections and accommodate all of the students.
In the diagram what is the measure of angle WRS
Answer:it’s 25
Step-by-step explanation:
Why not
there are 3 orange fish, 3 red fish, 1 white fish I the fish tank. how many fish are in the fish tank
Answer:
7
Step-by-step explanation:
I went to school once
Answer:
7
Step-by-step explanation:
i read it wrong at first
Can yall help plz.........................
Answer:
6^-8 or 1/ 6^8
Step-by-step explanation:
When there is a fraction with the same base, then subtract the exponent of the denominator from the exponent of the numerator.
6^-3 / 6^5 = 6^(-3-5) = 6^-8
Endpoint: (0, 0), midpoint: (1,7)
Answer:
Step-by-step explanation:
(x + 0)/2 = 1
x + 0 = 2
x = 2
(y + 0)/2= 7
y + 0 = 14
y = 14
(2, 14)
PLSSS HELP , ILL MARK BRAINLIST !!! HAVE TO GET IT RIGHT
Answer
It is 6 .
Explanation:
Just plug − 1 in for x in the equation and it gives you the answer
f ( − 1 ) = − 4 × ( − 1 ) + 2 = 4 + 2 = 6
187/100 in simplest form. I mark BRAINLIESTTTTTT and giving 20 POINTS
Answer:
[tex]\frac{187}{100}[/tex]
Step-by-step explanation:
This can't be simplified. It's already in its simplest form.
ASTRONOMY
Mmars= 6.42 x 10^23kg, RMars
3397 km)
Calculate the acceleration of gravity on the surface of Mars
Express your answer with the appropriate units.
Given :
Los Angeles and Las Vegas.
Mass of Mars , [tex]M=6.42\times 10^{23}\ kg[/tex].
Radius of Mars ,
[tex]R=3397\ km\\\\R = 3.397\times 10^6\ m[/tex]
To Find :
The acceleration of gravity on the surface of Mars.
Solution :
Acceleration due to gravity is given by :
[tex]g_m = \dfrac{GM_m}{R_m^2}\\\\g_m =\dfrac{(6.67\times 10 ^{-11}\ m^3\ kg^{-1}\ s^{-2})(6.42\times 10^{23}\ kg) }{(3.397\times 10^6\ m)^2}\\\\g_m = 3.71\ m/s^2[/tex]
Therefore, the acceleration of gravity on the surface of Mars is 3.71 m/s².
Hence, this is the required solution.
John's extremely generous mother gave him $150 to spend on new school clothes. Shirts cost $15 each and a pair of pants cost $25. If John spent all $150 and bought 5 shirts, how many pairs of pants did he buy?
Answer: 3 pairs of pants
Step-by-step explanation:
Answer: he can still buy 3 pairs of pants
Step-by-step explanation: 15x5=75
75 + 75 = 150
he can buy 5 shirts
and 3 pairs of pants
(2+2)^2=2^2∙2^2 true or false
Answer:
False
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
U probably don't need my answer anymore
I need help with this
solve for b
A=h(a+b)2
Answer:
B = (A/(2h)) - a
Step-by-step explanation:
A = h(a+b)2
divide both sides of the equation by 2h
A/(2h) = a+b
subtract a from both sides
(A/(2h)) -a = b
Two numbers total 44 and have a difference of 12. Find the two numbers
Answer:
I think an answer is 32 and 12
Step-by-step explanation:
Explain your steps to solve 3x +4/+2 = 29.
Answer:
X=18
Step-by-step explanation:
3x+4/2 = 29
Multiply both sides by 2 :
2(3x+4)/2 = 29*2
Simplify :
3x+4= 58
Subtract 4 from both sides :
3x + 4 - 4 = 58 - 4
Simplify :
3x = 54
Divide both sides by 3:
3x / 3 = 54 /3
Simplify :
X = 18
Hope it Helps :) !!!!
What is the slope of the line on the graph?
Answer:
[tex]m=\frac{1}{2}[/tex]
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Step 1: Find 2 points
(0, 2) y-int
(-4, 0) x-int
Step 2: Plug into slope formula to find slope m
[tex]m=\frac{2-0}{0-(-4)}[/tex]
[tex]m=\frac{2}{0+4}[/tex]
[tex]m=\frac{2}{4}[/tex]
[tex]m=\frac{1}{2}[/tex]
The psychology club is having a self-proclaimed psychic come to their campus fund-raising event to demonstrate his abilities. He charges $200 for these events, and the club is charging $1.50 for tickets with a chance to have the psychic read the ticket holder’s mind. Let x represent the number of tickets sold and y represent money. Fill in the items below for the linear model.
A 2-column table with 5 rows titled Length Conversion. Column 1 is labeled Inches, x with entries 2, 4, 7, 10, 13. Column 2 is labeled Centimeters, y with entries 5.08, 10.16, 17.78, 25.4, 33.02. What is the range of the relation of centimeters as a function of inches? {5.08, 10.16, 17.78, 25.4, 33.02} all positive integers x greater-than-or-equal-to 0 y greater-than-or-equal-to 0
Answer:
d
Step-by-step explanation:
The range of the relation of centimeters as a function of inches y ≥0.
What is Range of Function?A function's range includes all conceivable values for y. Y = f(x) is the formula to determine a function's range. It is only a function in a relation if each x value has exactly one y value.
Given:
Column 1 Column 2
2 5.08
4 10.16
7 17.78
10 25.4
13 33.02
As, we know the range is the output values.
So, range is {5.08, 10.16, 17.78, 25.4, 33.02}
Thus, the range is ≥ 0.
Hence, the range of the y ≥0.
Learn more about Range of the function here:
https://brainly.com/question/21027387
#SPJ2
use words to describe what a variable is
Answer: :) If u in college I have to know this already
Step-by-step explanation: :)
Molly took part in a math quiz and scored 55 points on 30 questions. Of the questions, there were 3-point word problems, 2-point calculation questions, and 1-point multiple-choice questions. She answered 5 more 2-point questions than 1-point questions correctly. Find how many of each type of question she answered correctly.
Answer:
[tex]3\ point\ word = 5[/tex]
[tex]2\ point\ word = 15[/tex]
[tex]1\ point\ word = 10[/tex]
Step-by-step explanation:
Given
Represent
3-point word with T;
2-point with U and
1-point with V
[tex]U = 5 + V[/tex] --- (1)
If total questions is 30, then
[tex]T + U + V = 30[/tex] --- (2)
If total points is 55, then
[tex]3T + 2U + V = 55[/tex] --- (3)
Substitute 5 + V for U in (2) and (3)
[tex]T + U + V = 30[/tex] --- (2)
[tex]T + 5 + V + V = 30[/tex]
[tex]T + 5 + 2V = 30[/tex]
[tex]T + 2V = 25[/tex] ---- (4)
[tex]3T + 2U + V = 55[/tex] --- (3)
[tex]3T + 2(5 + V) + V = 55[/tex]
[tex]3T + 10 + 2V + V = 55[/tex]
[tex]3T + 10 + 3V = 55[/tex]
[tex]3T + 3V = 55 - 10[/tex]
[tex]3T + 3V = 45[/tex]
Divide through by 3
[tex]T + V = 15[/tex] ---- (5)
Subtract (5) from (4)
[tex](T + 2V = 25 )- (T + V = 15)[/tex]
[tex]T - T + 2V - V = 25 - 15[/tex]
[tex]V = 10[/tex]
Recall that:
[tex]U = 5 + V[/tex]
[tex]U = 5 + 10[/tex]
[tex]U = 15[/tex]
Substitute 10 for V in (5)
[tex]T + V = 15[/tex]
[tex]T + 10 = 15[/tex]
[tex]T = 5[/tex]
PLEASE HELP!
What percent of the circle is shaded?
Can you also explain to me please?
Answer:
75%
Step-by-step explanation:
Look at it this way since there is 8 what u could do is 1/4 so 2 of them are 25% 4 of them are 50% 6 of them are 75% and all 8 are 100%
Answer:
75%
Step-by-step explanation:
The circle is divided into 8 parts and 6 of those are shaded.
so as a fraction it would be 6/8
simplified it would be 3/4
percent is out of 100 so you have to make the denominator as 100
25 x 4 (the denominator of 3/4) is 100
25 x 3 ( the numerator of 3/4) is 75 you have to multiply both the numerator and denominator by the same number.
now you have 75/100
which is 75 percent
Hope this helps :)
g(x) =3x+5, h(x)=3x-4 find g(h(n))
