Answer:
$7.77
Step-by-step explanation:
You subtract the bill ($42.00) from the total amount spent ($49.77) and the difference left is the tip in dollars.
8.75 divided by 6.5
Answer:
35/26 = 1.346153846
Step-by-step explanation:
Brawdy Plastics, Inc., produces plastic seat belt retainers for General Motors at the Brawdy Plastics plant in Buffalo, New York. After final assembly and painting, the parts are placed on a conveyor belt that moves the parts past a final inspection station. How fast the parts move past the final inspection station depends upon the line speed of the conveyor belt (feet per minute). Although faster line speeds are desirable, management is concerned that increasing the line speed too much may not provide enough time for inspectors to identify which parts are actually defective. To test this theory, Brawdy Plastics conducted an experiment in which the same batch of parts, with a known number of defective parts, was inspected using a variety of line speeds. The following data were collected.
If required, enter negative values as negative numbers.
a. Select a scatter diagram with the line speed as the independent variable.
b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
c. Use the least squares method to develop the estimated regression equation (to 1 decimal). = + x d. Predict the number of defective parts found for a line speed of 25 feet per minute.
Line Speed Number of Defective Parts Found
20 23
20 21
30 19
30 16
40 15
40 17
50 14
50 11
Answer:
a. The scatter diagram created with he given data is attached
b. The scatter diagram indicates that the Number of Defective Parts found increases with Line Speed
c. The regression model is Y = 27.5 - 0.3·X
When the line speed is 25 feet per minute, the number of expected defective parts is 20 defective parts
Step-by-step explanation:
The give data is presented as follows'
Line Speed; [tex]{}[/tex] 20, 20, 30, 30, 40, 40, 50, 50
Number of Defective; [tex]{}[/tex] 23, 21, 19, 16, 15, 17, 14, 11
Parts Found
a. Please find attached the scatter diagram created with Microsoft Excel
b. From the scatter diagram there is an apparent correlation between increase line speed and the number of defective parts found
c. The equation for linear regression by the least squares method is presented as follows;
Y = a + b·X
Where;
[tex]b = \dfrac{N\sum XY - \left (\sum X \right )\left (\sum Y \right )}{N\sum X^{2} - \left (\sum X \right )^{2}}[/tex]
[tex]a = \dfrac{\sum Y - b\sum X}{N}[/tex]
From Microsoft Excel, we have;
∑X = 280, ∑Y = 136, ∑X² = 10,800, ∑XY = 4,460, (∑X)² = 78,400, N = 8
Plugging in the values, we get;
b = (8×4,460 - 280×136)/(8×10,800 - 78,400) = -0.3
a = (136 - (-0.3)×280)/8 = 27.5
Therefore, we have the linear regression as follows;
Y = 27.5 - 0.3·X
Therefore, when the line speed is 25 feet per minute, we have;
Y = 27.5 - 0.3 × 25 = 20
The number of defective parts expected to be found when the line speed is 25 feet per minute, Y = 20 defective parts.
Answer:
All parts are solved in the attached picture
please help me explain what his mistake was. If possible does anyone think they can explain it in a simplified way? Thank You for your help!
Answer:
Dont think eh multiplied both sides by 4. That would be the first step.
Step-by-step explanation:
1/4(x+12)=2
multiply both sides by 4
x+12=8
move the 8 to the right side of the equation and change its sign
x=8-12
calculate
x= -4
Answer:
He didn't multiply 1/4 between both terms in the brackets.
Step-by-step explanation:
1/4(x+12)=2
1/4x+3=2
1/4x= -1
x= -4
Hope that makes sense!
Please dont steal points only real answers
I need help please...
Brainly help will give Brainlyst
Answer:
C.34
Step-by-step explanation:
Find the measure of BAD.
E
62
57
D
115
119°
129°
180°
Answer: 119
Step-by-step explanation:
just did on iready
CAN SOMEBODY PLZZZZZZZ HELP ME I WILL GIVE YOU BRAINLY IF YOU ANSWER IT CORRECTLY AND HALF MY POINTS IF YOU ANSWER THIS QUESTION I NEED YOUR HELP PLZZZZZZZZZZZZ HELP ME I NEEEED YOUR HELP THANK YOU FOR YOU HELP IN ADVANCE AND CAN YOU ALSO SHOW ME HOW YOU DID IT OK THAT IS ALL I ASK OK
30
Factors of 30 are
3,5, and 6
Create trig ratios to solve for the variables. Round your answer to one decimal place:
Answer/Step-by-step explanation:
✔️Reference angle = 50°
Opposite side length = y
Hypotenuse = 8 cm
Adjacent = x
Thus, applying CAH we can find x as shown below:
Cos 50 = adj/hyp
Cos 50 = x/8
8 × cos 50 = x
x = 5.1 (to 1 decimal point)
Thus, applying SOH, we can find y as shown below:
Sin 50 = opp/hyp
Sin 50 = y/8
8 × Sin 50 = y
y = 6.1 (to 1 decimal point)
Find the measure of the angle indicated in bold.
Answer:
5) 106°
6)
7) 46°
8) 102°
Step-by-step explanation:
Find the measure of the angle indicated in bold.
We are to find x
5) This follows the rule of Alternate Interior angles
= 12x + 10 = 13x + 2
Collect like terms
= 10 - 2 = 13x - 12x
= 8 = x
x = 8
The angle indicated in bold = (13x + 2)°
= 13 × 8 + 2
= 104 + 2
= 106°
6) This follows the rules of consecutive interior angles
x - 70 + 130 + x = 180
2x + 60 = 180
2x = 180 - 60
2x = 120
x = 120/2
x = 60
7)This follows the rule of Alternate Interior angles
22x + 2 = 21x + 6
Collect like terms
22x - 21x = 6 - 2
x = 4
The angle in bold is (22x + 2)°
Hence,
(22 × 2 + 2)°
44 + 2 = 46°
The measure of the angle is 46°
8) This follows the rule of corresponding angles
13x + 11 = 14x + 4
Collect like terms
11 - 4 = 14x - 13x
7 = x
x = 7
The angle in bold is (14x + 4) °
(14 × 7 + 4)°
=( 98 + 4)°
= 102°
Yall PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
complete the equation of the line whose y- intercept is (0,5)and slope is -9.
y=
Find the lateral area the regular pyramid.
8
6
L. A. =
Answer:[tex]18\sqrt{91[/tex]
Step-by-step explanation:
A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85 or better overall. What is the minimum grade he must get on the last test in order to achieve that average?
Answer:
He must get at least a 90 in order to recieve an 85 percent or higher
Step-by-step explanation:
Scanti Lee Clad has 15 short shorts and 11 sleeveless blouses. In how many different ways could she select a shorts-blouse combination?
Answer: 165 different combinations.
Step-by-step explanation:
Here we first need to identify the "selections", and then the number of options for each selection.
Here we have two selections, shorts, and sleeveless blouses.
For shorts, we have 15 options.
For sleeveless blouses, we have 11 options.
The total number of combinations will be equal to the product between the numbers of options for each selection, then the total number of combinations is:
C = 11*15 = 165
Graph the given function and choose the key features that apply to its graph.
f(x)=-3x+2
Answer:
The graph has a y- intercept at(0,1) and is decreasing over the interval -infinity <x< infinity
Step-by-step explanation:
Trust me
To graph the function f(x) = -3x + 2, we can plot some points and then connect them to form a straight line.
Here are a few points you can use to plot the graph:
1. When x = 0, f(0) = -3(0) + 2 = 2. So, the point (0, 2) is on the graph.
2. When x = 1, f(1) = -3(1) + 2 = -1. So, the point (1, -1) is on the graph.
3. When x = -1, f(-1) = -3(-1) + 2 = 5. So, the point (-1, 5) is on the graph.
Plot these points on a coordinate plane and then draw a straight line passing through them. The graph should be a straight line sloping downwards from left to right.
Key features of the graph:
1. Slope: The slope of the line is -3, which means it goes down 3 units for every 1 unit it moves to the right.
2. Y-intercept: The y-intercept is the point where the graph crosses the y-axis. In this case, the y-intercept is 2, as the graph passes through the point (0, 2).
3. X-intercept: The x-intercept is the point where the graph crosses the x-axis. To find the x-intercept, set f(x) = 0 and solve for x:
0 = -3x + 2
3x = 2
x = 2/3. So, the x-intercept is approximately (2/3, 0).
4. Linearity: The graph is a straight line, indicating that the function is a linear function.
5. Decreasing: The graph decreases as you move from left to right, indicating that the function is a decreasing function.
To know more about graph:
https://brainly.com/question/30466256
#SPJ2
Question 1
A school bus weighs 6
tons. How many pounds does a school bus weigh?
O 6,500 pounds
12,000 pounds
O
12,500 pounds
13,000 pounds
Answer:
12,000
Step-by-step explanation:
one ton = 2000 pounds then multiply that by 6 and you have your answer
Can someone please solve this for me btw I’m suppose to be dividing that question using long division
Answer:
0.343
Step by step explanation:
0. 3 4 3
8 2. 7 5 0
− 0
2 7
− 2 4
3 5
− 3 2
3 0
− 2 4
6
For what value of "c" are the factors of x^2 + cx + 256 the same?
Answer:
32
Step-by-step explanation:
Same factors meaning it is of the form
(x + a)(x + a) = (x + a)^2 = x^2 + 2ax + a^2
Take sqrt(256) = 16
a = 16, c = 2a = 32
Answer:
32
Step-by-step explanation:
how do I find the correct line of reflection?
Answer :
How do You find the right line of reflection?
Step-by-step explanation:
The concept is the line y = x. (y, x). The point is on the line y = -x (-y, -x). Notice that each point of a reflected image is the same distance from the reflection line as the original figure's corresponding point. Between the original figure and its image, the line of reflection will be directly in the centre.
The Boys and Girl's Club is buying 15 adult
tickets and 85 children's tickets to the fair. Adult
tickets are $14 and children's tickets are $12.
How much did they spend in all?
Answer:
$1230
Step-by-step explanation:
Adult tickets cost = 15 * $14 = $210
The children tickets cost = 85 * $12 = $1020
Therefore, they spent $1020 + $210 = $1230
Emily and Josh are both solving 3.65 ÷ 100. Emily says the answer is 365. Josh says the answer is 0.0365. Which student is correct?
A Emily, because when dividing by a power of 10, the decimal moves to the right.
B Josh, because when dividing by a power of 10, the decimal moves to the left
C Emily, because when multiplying by a power of 10, the decimal moves to the right.
D Josh, because when multiplying by a power of 10, the decimal moves to the left.
Answer:
The answer is [B Josh, because when dividing by a power of 10, the decimal moves to the left]
Answer: the answer is B
Step-by-step explanation:
Chidi measured the angle of elevation
of a tree and found it was 38°. He then
valked 25 m towards the tree and
measured the angle of elevation again
bo be 50°.
Find the actual height of the tree
d Find the total distance to the bot-
tom of tree from Chidi's initial
position
Answer: 56.72 m, 72.6 m
Step-by-step explanation:
Given
The initial angle of elevation is [tex]38^{\circ}[/tex]
after walking 25 m, the angle of elevation is [tex]50^{\circ}[/tex]
In [tex]\triangle ABD[/tex]
[tex]\Rightarrow \tan 38^{\circ}=\frac{h}{x+25}[/tex]
[tex]\Rightarrow h=\tan 38^{\circ}(x+25)\quad \ldots(i)[/tex]
In [tex]\triangle ABC[/tex]
[tex]\Rightarrow \tan 50^{\circ}=\frac{h}{x}\\\\\Rightarrow h=x\tan 50^{\circ}\quad \ldots(ii)[/tex]
From (i) and (ii)
[tex]\Rightarrow x\tan 50^{\circ}=(x+25)\tan 38^{\circ}\\\Rightarrow 1.191x-0.781x=25\times 0.781\\\Rightarrow 0.4104x=19.532\\\Rightarrow x=47.59\approx 47.6\ m[/tex]
[tex]\Rightarrow h=47.6\times \tan 50^{\circ}=56.72\ m[/tex]
The distance of tree bottom and Chidi's is
[tex]\Rightarrow x+25=47.+25=72.6\ m[/tex]
3x^4 + 8
The expression represents a linear
polynomial with 2
terms. The constant
term is
8
the leading term is
4
and the leading coefficient is
3
Y’all is this right?
yes, yes yes yes yes yes yes yes
7. Which function has -5 as its only zero?
A. f(x)=(x - 1)(x + 5)
B. f(x) = x(x + 5) C. f(x)=(x – 5)2
D. f(x)=(x + 5)2
Sophia wants to make 4 batches of lemonade. She needs 6 ounces of lemon juice and 3 cups of water to make each batch of lemonade
Which of the statements below are true?
Answer:
theres no statements below
Step-by-step explanation:
I can tell you how many ounces of lemon juice (24) and cups of water (12) but you do not have statements so cant help with that, sorry.
Two trains 300 miles apart are heading toward each other on the same track. The first one travels at 100 miles per hour and the second at 50 miles per hour. As the trains depart, a jet-powered drone flying 200 miles per hour leaves the first train and heads for the second. Upon reaching it, the drone instantaneously turns around and heads back towards the first. The drone continues back and forth in this manner. How far in miles will the drone fly before being crushed between the two trains?
Answer:
400
Step-by-step explanation:
u = 50 km/hr
v = 100 km/hr
d = 300 km
b = 200 km/hr
= b*d/(u+v)
= 200* 300/(50+100)
= 400
Find the circumference of each circle. a) 32 cm. leave pi as pi. b) 49 mm. Use 22/7 for pi.
Answer:
[tex]32 \times 3.14 \times 2 = 200.96[/tex]
[tex] \binom{22}{7 } \times 49 \times 2 = 308[/tex]
Step-by-step explanation:
it is so simple
easy peasy lemon squeaky
Helpp guyss left with this one onlyy!!!!
Answer:
[tex]m=\frac{2}{5}[/tex]
Step-by-step explanation:
1. To find the slope we need to use the slope formula, [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
2. The points that were given were (0,0) and (5,2). Let's plug those into the formula.
[tex]\frac{2-0}{5-0}[/tex]
[tex]\frac{2}{5}[/tex]
So, your slope would be [tex]m=\frac{2}{5}[/tex]
Hope this helped! C:
Please help me with this!
Answer:
3. (x-6)
Step-by-step explanation:
x^2-5x-6
--
Find factors of -6 that could be added that equals to -5
Factors=
-6 and 1
x^2-5x-6 factored is (x-6)(x+1)
so the answer would be (3) (x-6)
The answer choices are 10, 15, 30, 35.
Lets us start with finding the inner angles of the triangle. The bottom right angle shall be 70 degrees as it is opposite. The 100 degrees shall add together to make 200. 360-200 = 160. 160 / 2 = 80. So, Now we know bottom left angle (80) and bottom right (70). 80 + 70 = 150. In a triangle, angles add to 180 so 180 - 150 = 30. 30 = 2x which means that x = 15
15