Answer:
Henry Harrison
Step-by-step explanation:
Answer:
Yep it is D, i got 90%
Step-by-step explanation:
A lumber company is making boards that are 2857.0 millimeters tall. If the boards are too long they must be trimmed, and if the boards are too short they cannot be used. A sample of 16 is made, and it is found that they have a mean of 2858.7 millimeters with a variance of 100.00. A level of significance of 0.05 will be used to determine if the boards are either too long or too short. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the boards are either too long or too short
Answer:
The test statistic 't' = 0.68 < 2.1314 at 0.05 level of significance
Null Hypothesis is accepted
There is no sufficient evidence to support the claim that the boards are either too long or too short
Step-by-step explanation:
Step(i):-
Mean of the Population (μ) = 2857.0 millimetres
size of the sample 'n' = 16
Mean of the sample (x⁻) = 2858.7 millimetres
The Variance of the sample (S²)= 100.00
Standard deviation of the sample (S) = √100 =10
Degrees of freedom = n-1 =16-1 =15
Level of significance =0.05
Tabulated value = [tex]t_{\frac{0.05}{2} , 15} = t_{0.025,15} = 2.1314[/tex]
Step(ii):-
Null Hypothesis :H₀ : There is no sufficient evidence to support the claim that the boards are either too long or too short
Alternative Hypothesis: H₁:There is sufficient evidence to support the claim that the boards are either too long or too short
Test statistic
[tex]t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }[/tex]
[tex]t = \frac{2858.7 -2857}{\frac{10}{\sqrt{16} } }[/tex]
t = 0.68
The calculated value = 0.68 < 2.1314 at 0.05 level of significance
Null Hypothesis is accepted
Final answer:-
There is no sufficient evidence to support the claim that the boards are either too long or too short
Jessica needs to get her bicycle fixed. A mechanic charges $30 per hour of labor, and $45 for parts. The total cost for fixing Jessica's bicycle is $90. How
long did it take the mechanic to fix Jessica's bicycle?
Answer:
It took the mechanic an hour and a half so 1.5 hour.
Step-by-step explanation:
If the mechanic charges $30 per hour + $45 for parts=75. If the total cost was $90 then 90(total cost)-75(for the first hour +parts) =15 and 30(cost of one hour)/2 is 15 which is half hour.
9 Mia bought a sweater that was 30% off. She paid $48 for the sweater. What was the original price of the sweater? A $18.24 B $29.76 CS68.57 D $62.40
Answer:
D$62.40
Step-by-step explanation:
first start calculating how much the price is 30% then you add to the price she paid..then you get the original price of the sweater
I need help, pls !!!
Answer:
D) 11.2 Orange
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-8, -1)
Point (-3, 9)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute [DF]: [tex]\displaystyle d = \sqrt{(-3+8)^2+(9+1)^2}[/tex]Add: [tex]\displaystyle d = \sqrt{(5)^2+(10)^2}[/tex]Exponents: [tex]\displaystyle d = \sqrt{25+100}[/tex]Add: [tex]\displaystyle d = \sqrt{125}[/tex]Simplify: [tex]\displaystyle d = 5\sqrt{5}[/tex]Evaluate: [tex]\displaystyle d = 11.1803[/tex]Round: [tex]\displaystyle d = 11.2[/tex]4x+8y12xy third term of the expression
Answer:
its obviously 24xy
Step-by-step explanation:
ez
The name for the expression 3 divide 13 is
Answer:
I believe it is a fraction. Hope I'm right have a great day/night
Answer:
is =^3 54..............
I GIVEEEE BRAINLILST
Answer:
257cm
Step-by-step explanation:
Can I get brainliest pls
Solve 5x–8 = 15.
Please solve this
Step-by-step explanation:
5x-8=15
5x=15-8
5x=7
x=7/5
x=1.4
Only people who like gon and wants him can come here
Answer:
I like Gon and Ging and Killua.
Hunter x Hunter is the best
Step-by-step explanation:
maybe gon can beat me..
BUT CAN HE BEAT MR.SHARK
..I don't think so..
SMACK SMACK SMACK
[50 POINTS + BRAINLIEST]
gary the fat boi ate 1000 pounds of "Sour patch kids". How much does gary weigh and does he have mega-evolved diabetes?
Craig has £13.40
He sees this offer in a restaurant:
Main courses £8.90 each. Buy one main course and get the 2nd HALF PRICE!
Can he afford to buy two main courses? Show your working.
The marble statue of Abraham Lincoln in the Lincoln Memorial has a height of 60 feet. A scale model of the statue has a height of 4 inches. How many feet of the statue does one inch of the model represent?
Answer: it’s 15 not 20
Step-by-step explanation:
The graph shows the average home prices in thousands of dollars from 2010 to 2016 in a neighborhood.
Let x = 0 correspond to the year 2010.
What does y-intercept represent in this situation?
average home price in the year 2011
average home price in the year 2010
growth rate of home prices in the neighborhood
average home price in the year 2016
Answer:
Average home price in the year 2010
Step-by-step explanation:
The y - intercept on a graph or linear equation refers to the corresponding value of y in the equation or the value of y on the vertical axis at the point where the value of x = 0.
From the graph given, the corresponding value on the y - axis when the value of x on the horizontal axis = 0 is 750.
Answer:
Average home price in the year 2010
Step-by-step explanation:
Took the test :D
List the partial products of 2.3×0.5
Answer:
1.15
Step-by-step explanation:
Answer:
1.15
Step-by-step explanation:
2.3 x 0.5 = 1.15
The population of a city is 100,000. It doubles each decade for 5 decades. Select all
expressions that represent the population of the city after 5 decades.
A. 32,000
B. 320,000
C. 100,000 -2.2.2.2.2
D. 100,000 - 5 with the power of 2
E. 100,000 - 2 with the power of 5
Answer:
The answer is C and E.
Step-by-step explanation:
I just took the assignment and it is C and E.
The expression that represents the population after 5 decades is
100,000 x [tex]2^5[/tex] or 100,000 x 2 x 2 x 2 x 2 x 2.
Options C and E is the correct answer.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 8 is an equation.
We have,
The population of the city = 100,000
Population doubles every decade.
This means,
Population after 1 decade.
= 100,000 x 2
= 200,000
Population after 2 decades.
= 200,000 x 2 x 2
= 800,000
We can write an expression for the population after x decade.
= 100,000 x [tex]2^x[/tex]
The population after 5 decades.
= 100,000 x [tex]2^5[/tex]
= 100,000 x 2 x 2 x 2 x 2 x 2
= 100,000 x 32
= 3200,000
Thus,
The expression is 100,000 x [tex]2^5[/tex] or 100,000 x 2 x 2 x 2 x 2 x 2.
Learn more about equations here:
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Find the slope of the line that is perpendicular
Y=3x+5
Answer:
y = -1/3 + 5
Step-by-step explanation:
you get the reciprocal of the slope in order to make a perpendicular copy
Find the area of the composite figure below.
4,3,3,2,2
Answer:
The area of the figure is. 144.
you just have to multiply all the numbers.
WILL MARK YOU BRAINLIEST
Reflect (-5, -3) over the X-axis.
Then translate the result down 2 units.
What are the coordinates of the final point?
Answer:
_____________the answer is (-7,-3)______________
What is the rate of change of the function described in the table?
Answer:
It’s 5
Step-by-step explanation:
PLZZ HELPP ILL GIVE BRAINLIST
PLEASE ASNWER ASASP for BRAINLEST!!!!!!!!!!!!1
Choose Yes or No to tell whether 0 is a solution for the inequality 10p - 8 less than or equal to 12.
Yes
No
Answer:
yes
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
To find out if the inequality 10p - 8 ≤ 12 is true if p is 0, replace p with 0.
10(0) - 8 ≤ 12
0 - 8 ≤ 12
-8 ≤ 12
-8 is less than 12 so Yes, p as 0 works.
(Ex: In fact, the largest value where this is true is 2. All negative numbers work with this inequality.)
Adam can paint 38 feet of fence per hour. How many yards of fence can he paint per hour?
Answer:
12
Step-by-step explanation:
Answer:
12 yards per hour
Step-by-step explanation:
Which transformation of figure ABCDEFGH results in figure A'B'C'D'E'F'G'?
A.
a translation 4 units left
B.
a reflection over the x-axis
C.
a 90° clockwise rotation about the origin
D.
a reflection over the y-axis
Answer:
D. a reflection over the y-axis
Step-by-step explanation:
(x,y) -----> (-x,y)
Answer:
D.
a reflection over the y-axis
Step-by-step explanation:
The sum of the measures of the angle in any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, while angle C is 42 degrees larger than each of the other two angles. Find the measure of angle C.
Answer:
88°
Step-by-step explanation:
we can say the two base angles are each x°
the vertex angle (∡C) is (42 + x)°
add them all and set equal to 180°
x + x + x + 42 = 180
3x + 42 = 180
3x = 138
x = 46
∡C = 46 + 42 = 88°
If angle C is 42 degrees larger than each of the other two angles. then measure of angle c is 88 degrees.
What is Angle Sum property?The sum of angles of a triangle are 180 degrees.
Given that,
The sum of the measures of the angle in any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, while angle C is 42 degrees larger than each of the other two angles. we can say the two base angles are each x°
the vertex angle (∡C) is (42 + x)°
add them all and set equal to 180°
x + x + x + 42 = 180(By angle sum property)
3x + 42 = 180
Shift 42 to RHS
3x = 180-42
3x = 138
Divide both sides by 3.
x = 46
∡C = 46 + 42 = 88°
Therefore angle C is 88°.
To learn more on Angle sum property click:
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Simplify (-3+8i)-(1+8i)
Answer:
8i^2-16i-3
Step-by-step explanation:
Answer:
- 4Step-by-step explanation:
(-3 + 8i) - (1 + 8i) =-3 + 8i - 1 - 8i =(- 3) + (- 1) + (8i - 8i) =- 4 + 0 = - 4Help please I dislike math
Answer:
Step-by-step explanation:
last one i agree with it
are 10/12 and 15/20 proportional
Answer:
no
Step-by-step explanation:
(30 points)
what conclusion can be deduced about angles 3 and 5?
A: they are supplementary
b: they are complementary
c: they are alternate interior angles
d: they are alternate exterior angles
Answer:
A. they are supplementary angles
Step-by-step explanation:
cuz, angle 3 and 5 form co inferior angles pair hence sum of them will be equal to 180°
so, they are supplementary in nature.
Identify the zeros in this graph and explain what they mean in the context of the problem. Thank you!!
Answer: hi wyd ik this one its blabla stop doing work and go watch Netflix
Step-by-step explanation: Take a break the teachers pushing yall to hard to be on brainly.
6. If mZCDF = (3x + 14)", mZFDE = (5x - 2)", and mZCDE = (10x - 18)", find each measure.
D
E
XE
F
mZCDF =
mZFDE =
mZCDE =
Answer:
Answer:
x = 15 , m∠ CDF = 59° , m∠FDE = 73° , m∠CDE = 132°
Step-by-step explanation:
* Lets explain how to solve the problem
- The m∠ CDF = (3x + 14)°
- The m∠ FDE = (5x - 2)°
- The m∠ CDE = (10x - 18)°
- We need to find the value of x and the measure of each angle
∵ Point D is the vertex of the three angles
∵ The ray DF is between the rays DC and DE
∴ m∠ CDE = m∠ CDF + m∠ FDE
∵ m∠ CDE = (10x - 18)°
∵ m∠ CDF = (3x + 14)°
∵ m∠ FDE = (5x - 2)°
- Substitute the measures of these angles in the equation above
∴ 10x - 18 = (3x + 14) + (5x - 2)
- Add the like terms in the right hand side
∴ 10x - 18 = (3x + 5x) + (14 - 2)
∴ 10x - 18 = 8x + 12
- Subtract 8x from both sides and add 18 to both sides
∴ 10x - 8x = 12 + 18
∴ 2x = 30
- Divide both sides by 2
∴ x = 15
- Substitute the value of x in the measure of each angle to find it
∴ m∠ CDF = 3(15) + 14 = 59°
∴ m∠ FDE = 5(15) - 2 = 73°
∴ m∠ CDE = 10(15) -18 = 132°
9514 1404 393
Answer:
∠CDF = 59°
∠FDE = 73°
∠CDE = 132°
Step-by-step explanation:
We can use the angle sum theorem to relate the angles:
∠CDF + ∠FDE = ∠CDE
(3x +14) +(5x -2) = (10x -18) . . . . . divide by " (presumably, degrees (°))
8x +12 = 10x -18 . . . . . collect terms
30 = 2x . . . . . . . . . . . . add 18-8x
15 = x . . . . . . . . . . . . . . divide by 2
Then the angle measures are ...
∠CDF = (3x +14)° = (3(15) +14)° = 59°
∠FDE = (5x -2)° = (5(15) - 2)° = 73°
∠CDE = (10x -18)° = (10(15) -18)° = 132°
