Answer:
adding right is positive and left is subtracting.
Step-by-step explanation:
Answer:
adding
Step-by-step explanation:
Here are measurements (in millime- ters) of a critical dimension on an SRS of 16 of the more than 200 auto engine crankshafts produced in one day: 224.120 224.001 224.017 223.982 223.989 223.961 223.960 224.089 223.987 223.976 223.902 223.980 224.098 224.057 223.913 223.999 (a) Construct and interpret a 95% confidence interval for the process mean at the time these crankshafts were produced.
Answer:
(23.97, 24.03)
Step-by-step explanation:
Given the data:
224.120 224.001 224.017 223.982 223.989 223.961 223.960 224.089 223.987 223.976 223.902 223.980 224.098 224.057 223.913 223.999
Confidence interval = m ± Zcritical(s/√n)
n = sample size = 16
Zcritical at 95% = 1.96
Using calculator :
Sample mean, m = 224.0019
Standard deviation, s = 0.0618
Lower bound : 24.0019 - 1.96(0.0618/√16) = 23.971618
Upper bound : 24.0019 + 1.96(0.0618/√16) = 24.032182
(23.97, 24.03)
30 points and brainly! which systems of inequalities is shown below?
Answer:
Its a
Step-by-step explanation:
Hope this helps!!!
help meeeeeee plz brainlest in my hand
Answer:
1. 80
2. 28
Step-by-step explanation:
if you have questions of how to get the answer tell mw :>
7v + 6v pls help im learn about algebra
Answer:
infinite 7v + 6v could be anything theres no context to find out what v represents and how much it could amount to
Step-by-step explanation:
What specific measure of a geometric figure is shown in the image?
Answer:C, A 70 angle
Step-by-step explanation:
Answer:
The specific measure of a geometric figure is shown in the image is a 70° angle.
Thus, option 'A' is correct.
Step-by-step explanation:
We know that protectors normally have:
two sets of numbers going in opposite directions.From the figure, it is clear that:
The center point of the protector lies on the vertex of the angle.The zero mark is the bottom edge of the protractor.It is clear that the other ray tends to cross the protractor at the measure 70 degrees.
Therefore, the specific measure of a geometric figure is shown in the image is a 70° angle.
Thus, option 'A' is correct.
What do similar figures and congruent figures have in common?
Answer:They both are figures
Step-by-step explanation:123
At first, you have 15 bottles of coke, and you drink 2 bottles each day. After a certain number of days, there are 3 bottles left. Write and solve an equation for, d, when there are 3 bottles left?
Answer:
After 6 days, 3 bottles will be left.
Step-by-step explanation:
Given that:
Number of bottles = 15
Number of bottles drank each day = 2
Let,
d be the number of days
y be the number of bottles left
y = 15 - 2d
Now,
We have to find the number of days when 3 bottles will be left.
Putting y=3
3 = 15 - 2d
2d = 15 - 3
2d = 12
Dividing both sides by 2
[tex]\frac{2d}{2}=\frac{12}{2}\\d=6[/tex]
Hence,
After 6 days, 3 bottles will be left.
Which best describes the solutions to the inequality x greater than 10?
Answer: x>10
Step-by-step explanation:
I don't know what this is asking but the inequality x greater than 10 is simplified as x>10
if your dogs heart rate is 90 times per minute how many times would it beat in an hour?
Answer:5400
Step-by-step explanation: 1 hour is 60 minutes, so 90 * 60 = 5400
Answer:
90 x 60 = 5,400 beats per hour i think
unless the dog dies, then its just sad
Please help me can y’all tell me how to solve it out
Answer:
40in
Step-by-step:
to get from 12 to 30 you multiply by 2.5
this is the scale factor
then you do 16 x 2.5 which is 40
pq (p to q) is 40in
In ∆ABC, m∠BAC=4x+10,m∠ABC=12x-6,and m∠BCA=3x+5
Use the given information to find the value of x (1 point). Show your work (2 points)
Now that you know x, find the measure of each angle. Show your work (2 points each).
m∠BAC
m∠ABC
m∠BCA
Find the measure of angle 1 and angle 2 (2 points each)
m∠1
m∠2
Angle BAC and Angle FAC are examples of what type of angle pair? (1 point)
Angle BCE and Angle DCA are examples of what type of angle pair? (1 point)
Answer:
Answer:
Try this option, note: only calculation is performed, the last two question are missed.
Step-by-step explanation:
to calculate 'x':
the rule: m∠BAC+m∠ABC+m∠BCA=180°; if to substitute m∠BAC=4x+10,m∠ABC=12x-6,and m∠BCA=3x+5, then 4x+10+12x-6+3x+5=180°; ⇔ x=9.
to calculate m∠BAC; m∠ABC; m∠BCA:
m∠BAC=4x+10; ⇒ m∠BAC=36+10=46°;
m∠ABC=12x-6; ⇒ m∠ABC=108-6=102°;
and m∠BCA=3x+5; ⇒ m∠BCA=27+5=32°.
to calculate the angle 1 and 2:
the fule is: m∠1+m∠BAC=180° and m∠2+m∠ABC=180°.
Then m∠1=180-m∠BAC=180-46=134°;
m∠2=180-m∠ABC=180-102=78°.
I need help please!:D
Carolyn drove from her home to school at 40 mph and was 10
minutes late. The next day she drove to school at 60 mph and was
10 minutes early. How far is Carolyn's school from her home? Please explain also I will give brainliest
two friends share 3 fruit bars equally.How much does each friend get?
Answer:
1 1/2
Step-by-step explanation:
Answer:
1.5 one and a half
Step-by-step explanation:
3bars/2freinds=1 1/2 bars
I need help with math I’m not good at it
Answer:
Option 1 should be correct
3×w=12 <- Product ; 3 <- Factor ; w <- other factor
Step-by-step explanation:
hope it helps ^^
The ratio of red marbles to blue marbles in Simran's bag is equal to 1 to 1. If there are 20 red marbles, how many blue marbles are there?
Answer:
There has to be 20 blue marbles
Step-by-step explanation:
The ratio is 1:1, so to be equal we must replace 1 with 20 on both sides.
Answer:
20
Step-by-step explanation:
1/1 = 1
20/x = 1
x=20
Did I do this right math functions need fast
Answer:
The rate of change of Function A is less than the rate of change of function B.
Other than that, everything else you put is correct.
Step-by-step explanation:
None.
Answer:
Option A, B and D are correct options.
Step-by-step explanation:
First we will find rate of change of function A and function B
Rate of Change of Function A
The formula used to calculate rate of change is: [tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have x_1=1, y_1=5, x_2=2, y_2=7
Putting values in formula and finding rate of change
[tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}\\Rate\:of\:Change=\frac{7-5}{2-1}\\Rate\:of\:Change=\frac{2}{1}\\Rate\:of\:Change=2[/tex]
So, Rate of change of Function A = 2
Now, finding y-intercept.
y-intercept is found by putting x =0
Looking at the function, we can write the equation: y=2x+3
Now, put x =0
y=2(0)+3
y=3
So, when x =0, y=3
So, y-intercept is 3 for function A.
Rate of Change of Function A
The formula used to calculate rate of change is: [tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have x_1=1, y_1=1, x_2=2, y_2=4
Putting values in formula and finding rate of change
[tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}\\Rate\:of\:Change=\frac{4-1}{2-1}\\Rate\:of\:Change=\frac{3}{1}\\Rate\:of\:Change=3[/tex]
So, Rate of change of Function B = 3
Now, finding y-intercept.
y-intercept is found by putting x =0
Looking at the graph, when x=0, y is -2
So, y-intercept is -2 for function B.
We get following answers:
Rate of change of Function A = 2
Rate of change of Function B = 3
y-intercept is 3 for function A.
y-intercept is -2 for function B.
So, The correct options are:
The rate of change of function A and B are positive
The rate of change of function A is less than the rate of change of function B. (Because 2 is less than 3)
The y-intercept of function A is positive, while y-intercept of function B is negative.
So, Option A, B and D are correct options.
What is the slope of the line y=5?
Answer:
0
Step-by-step explanation:
if you slightly change the equation to better fit standard form (without actually changing its meaning) you get
y = 0x + 5
which means the slope is 0
Also, a shortcut:
Horizontal lines always have a 0 slope while vertical lines have an undefined slope PLS HURRY NOWWWW. Peanuts are priced at $3.38 per pound. Derek buys a sack
of peanuts for $15.82. Which measurement is a reasonable
estimate of the weight of the peanuts that are in the sack?
A А
70 lb
B
5 lb
C
50 lb
D 7 lb
Answer:
a 70
Step-by-step explanation:
eanuts have a high oil content (45 percent to 52 percent) compared to several other oilseed crops. With a yield of 3,000 pounds per acre, a 70 grade (70 percent of the weight of the peanut in shell) and 50 percent oil content, peanuts could potentially produce 120 to 150 gallons of biodiesel per acre.
Nikhil, Davina and Sid share a tin of celebrations amongst themselves in the ratio of 8:12:20 respectively.
Given that Davina gets 48 sweets, calculate the total number of sweets that were in the tin.
Answer:
160
Step-by-step explanation:
n : d : s
8 : 12 : 20
davina = 48 sweets
48/12 = 4
8 + 12 + 20 = 40
40 x 4 = 160 sweets total
Pedro’s car odometer measures the distance driven in kilometers. Pedro determines that, for every 810 kilometer he drives, he drives the equivalent distance of 510 mile. What is that ratio as a unit rate of kilometers to miles?
Answer:
The ratio of a unit rate of kilometers to miles of the distance measured by the odometer is 1 km : 0.63 miles.
Step-by-step explanation:
Given;
distance measured by odometer in kilometer, = 810 km
distance measured by odometer in miles, = 510 miles
The ratio of a unit rate of kilometers to miles of the distance measured by the odometer is calculated as;
[tex]d = \frac{810 \ km}{510 \ miles} \\\\d = \frac{810 \ km \ \times \ \frac{1}{810 \ km} }{510 \ miles \ \times \frac{1}{810 \ km} } \\\\d = \frac{1 \ km}{\frac{510}{810} \ miles } \\\\d = \frac{1 \ km}{\frac{17}{27} \ miles} \\\\d = 1 \ km : \frac{17}{27} \ miles\\\\d = 1 \ km : 0.63 \ miles[/tex]
Therefore, the ratio of a unit rate of kilometers to miles of the distance measured by the odometer is 1 km : 0.63 miles.
Translate the sentence into an equation using n to represent the unknown number. Then solve the equation for n. the quotient of a number divided by 11 is 0.5
a. 22 73= 5.5
b. - = 0.5 = 5.5
C. 11x= 1.5 = 5.5
d. llx=0.5 2= 0.045
Answer:
n = 5.5
Step-by-step explanation:
Let the number be n. The quotient of a number divided by 11 is 0.5.
ATQ,
[tex]\dfrac{n}{11}=0.5[/tex]
Multiply both sides by 11.
[tex]\dfrac{n}{11}\times 11=0.5\times 11\\\\n=5.5[/tex]
Hence, the required number is 5.5.
Answer:
b. - = 0.5 = 5.5
Step-by-step explanation:
A mom mixes 9 oz of juice and adds 3 oz of water. What percent of the drink is juice?
Answer:
75% is juice
Step-by-step explanation:
3/4 equals 75%
Answer:
75% of the drink is juice i did the calculations in my head.
Step-by-step explanation:
i Hope this helps you :)
Please help me! Will give brainleist! ✨
Answer:
3/10
Step-by-step explanation:
You could multiply straight across and get 21/70 and when the numerator and denominator are divided by 7 you'd get 3/10.
Write a positive or negative integer that represents the situation.
You dive 10 feet below the surface of the water
An integer that represents the situation is [ ]?
Answer:
it's -10
Step-by-step explanation:
because in the question they says below the surface of the water
so I think it's right
The upward is taken as positive and the downward is taken as negative. Then the integer can be represented as negative 10.
What is a sign convention?Sign convention means the rule that is used when the sign is to be changed. It is applicable only when the equation is considered.
You dive 10 feet below the surface of the water.
Then the negative sign should be used because we considered the right side as positive and the left side as negative similarly upward is taken as positive and downward is taken as negative.
Then the integer can be represented as negative 10.
More about the sign convention link is given below.
https://brainly.com/question/14303096
#SPJ2
Write the Linear Equation given:
1. Slope = 4; y-intercept = -5
2. Slope = 5; y-intercept = 3
3. Slope = -2; y-int; y-intercept = -8
4. Slope = 2; y-intercept = 2
5. Slope = -%; y-intercept = -2
6. Slope = /; y-intercept = 7
7. Slope = -3; y-intercept = ?
8. Slope = %; y-intercept = 10
9. Slope = -2; y-intercept = -1
10.Slope = -2; y-intercept = -3
Answers:
Answer:
Either a tangent line or a line parallel to the axis of symmetry will do.
A standard high school parabola has a vertical or horizontal axis of symmetry, so a line of the form x=k or y=k is the easiest way
hope it helps you
50 POINTS
Marcus says that a store overcharged him on the price of the video game he bought. He thought that the price was marked of the original price, but it was really off the original price.
He misread the advertisement.
If the original price of the game was $48, what is the difference between the price that Marcus thought he should pay and the price that the store charged him?
Answer:
$14
Step-by-step explanation:
Since the original price of the game was $48 and the store wanted to sell it with 1/4 off the total price, we can say that (48) - (48 *1/4) = 36. Since marcus thought that he was buying the game for 1/4 of the original price, that would be 48 * 1/4 = 12.
The difference between 36 and 12 is 14, which would be the answer.
Kyle is raising money for his school. He has $75 saved and needs to raise at least $150. He wrote part of an inequality to help him find the minimum amount of money needed to raise. Which inequality symbol can be used in the box to make this inequality correct?
≥
Answer: >_
Step-by-step explanation:
The symbol for inequality is represented as "≥".
Given data:
To find the minimum amount of money Kyle needs to raise, the inequality is determined as:
Kyle already has $75 saved, and he needs to raise at least $150.
Let's represent the minimum amount he needs to raise with the variable "x."
The inequality can be written as:
$75 + x ≥ $150
In this inequality, we are adding the amount Kyle has saved ($75) to the amount he needs to raise (x), and it should be greater than or equal to $150.
To indicate that the left side of the inequality should be greater than or equal to the right side, we use the symbol "≥" in the box.
Hence, the correct inequality symbol to make the inequality accurate is "≥".
To learn more about inequality equations click :
https://brainly.com/question/11897796
#SPJ2
How to solve for x?
Answer:
159
Step-by-step explanation:
35x-1 =-35 plus 34x20
A warehouse contains ten printing machines, four of which are defective. A company selects five of the machines at random, thinking all are in working condition. The company repairs the defective ones at a cost of $20 each. In what interval would you expect the repair costs on these five machines in dollars to lie 75% of the time
Answer:
Step-by-step explanation:
There from ypergemetric distribution
mean number of defective in sample =n×m/N =5×4/10=2
and std deviation =sqrt(mn/N*(1-m/N)*(N-n)/(N-1))
=sqrt(5*4/10*(1-4/10)*(10-5)/(10-1))=0.816
from Tchebysheff's theorem ; 75% values fall within 2 standard deviation from mean
therefore interval in terms of defective
=2-2*0.816 ; 2+2*0.816 =0.367 ; 3.633
interval in terms of repair costs =20*0.367 ; 20*3.633 =$7.34 ; $ 72.66
