Answer:
I believe its A, correct me if i'm wrong.
Step-by-step explanation:
A hypothesis test involves a comparison between research results from a sample and a hypothesis about a population.
Thus, option (A) is correct.
In hypothesis testing, a researcher starts with a null hypothesis, which represents the assumption of no difference or no effect in the population.
The researcher collects data from a sample and performs statistical analysis to determine whether the evidence supports or rejects the null hypothesis in favor of an alternative hypothesis.
The research results obtained from the sample are compared to the hypothesis about the population to determine whether there is enough evidence to reject the null hypothesis and accept the alternative hypothesis.
Thus, option (A) is correct
Learn more about Hypothesis here:
https://brainly.com/question/32562440
#SPJ6
In triangle ABC, and C is a right angle. Find the value of the trig function find the sec(A) if C=25, B=20, A=15
Answer:
sec A = 5/4
Step-by-step explanation:
Sec of an angle is hypotenuse/adjacent side
In your problem, sec A = 25/20 = 5/4
It helps if you can draw a figure of the problem. Make sure you memorize the definition of each trig function
this is the other post, ill give brainlist to the best answer.
Step-by-step explanation: 1 will now become a 2, so the answer is 1.2.1,
A company find that 4 1/4 % of the tyres are defective. The company made 28,000 tyres. How many tyres were defective?
(4 whole, 1 as nominator and 4 as dominator)
No need to explain, just give answer.
Answer:
595 pairs of tyres are defective.
Step-by-step explanation:
4.25×28000
____
100
0.0425×28000
1190 Total no. of defective tyres
1190 divide total tyres by 2 to get the exact pairs of defective tyres.
____
2
595 tyresof shoes are defective.
Darius is putting tiles on the roof of his house. After working for 3 1/3 hours, he has completed 4/5 of the roof. Can Darius put the titles on the enitre roof in 4 hours if he continues to work at the same rate?
Answer:
No.
Step-by-step explanation:
It is given that Darius is putting tiles on the roof of his house.
Darius had completed = [tex]$\frac{4}{5}$[/tex] th of the work
He takes time = [tex]$3 \frac{1}{3}$[/tex] hours to complete [tex]$\frac{4}{5}$[/tex] th of the work
The remaining work = [tex]$1 -\frac{4}{5}$[/tex]
[tex]$=\frac{5-4}{5}$[/tex]
[tex]$=\frac{1}{5}$[/tex]
∴ Darius completes [tex]$\frac{4}{5}$[/tex] th of the work in = [tex]$\frac{10}{3}$[/tex] hours
So, [tex]$\frac{1}{5}$[/tex] th of the work in = [tex]$\frac{10}{3} \times \frac{5}{4} \times \frac{1}{5}$[/tex] hours
[tex]$=\frac{10}{12}$[/tex] hours
Therefore total time taken to complete the work [tex]$=\frac{10}{3}+\frac{10}{12}$[/tex] hours
[tex]$=\frac{40+10}{12}$[/tex] hours
[tex]$=\frac{50}{12}$[/tex] hours
[tex]$=4\frac{2}{12}$[/tex] hours
[tex]$=4\frac{1}{6}$[/tex] hours
Thus, Darius continues to work at the same rate will not be able to complete the work in 4 hours.
find the intercept of the line please help
Answer:
x-intercept: -5/2
y-intercept: 15/4
Step-by-step explanation:
to find x-intercept set y = 0
-6x + 4(0) = 15
-6x = 15
x = -15/6
x = -5/2
to find y-intercept set x = 0
-6(0) + 4y = 15
4y = 15
y = 15/4
Answer:
y-intercept is -2.5 and x-intercept is 3.75
Step-by-step explanation:
I posted a photo on how I got this
Hope this helped
The length of a square park is 6 miles. What is the area of the park?
Answer:
36 miles.......................
-6x -8y = 28
6х + 4y =-28
would this be infinite many solutions or no solutions?
Find the length of the indicated
side of the similar figure.
x = [?]
Enter the number that belongs in the green box.
x=12
In a similar the sides of the figure are in proportions. Therefore we can conclude that 16/12=x/9
Then just solve for the equation!
12x=144
x=12
Please give Brainlliest!
Answer:
12
I hope this helps!
first come first served:)
Answer:
2.
gold beads to silver beads
table: 6:9 12:18 24:36 30:45
equivalent ratios: 4:6 10:15 20:30 100:150
3.
A.33
B.1.2
Step-by-step explanation:
2.
the rule is, gold beads x 1 1/2 = silver beads
3.
A. 165/5=33
B.9.60/8=1.2
hope this helps have a blessed day :)
: Santiago realizó los siguientes movimientos en su Cuenta bancaria: el lunes consignó $300.000, el martes retiró $120.000, el miércoles retiró $95.000 Y el jueves consignó $80.000. ¿Cómo se representan matemáticamente los movimientos bancarios de Santiago?
Answer:
Step-by-step explanation:
Los movimientos bancarios de Santiago se representan matemáticamente teniendo en cuenta que consignar es sumar y retirar el restar. Por lo tanto podes expresar los movimientos bancarios de la siguiente manera:
Lunes → + 300.000Martes → -120.000Miércoles → -95.000Jueves → +80.000Al realizar la sumatoria se obtiene:
+300.000 - 120.000 - 95.000 + 80.000 = + 165.000
En la semana Santiago obtiene en su cuenta bancaria $165.000
Picture is below...........................
Answer:
C or A
thats all i know hope it helps
4.I need help this is timed!!
Answer:
c. (-1, -2)
Step-by-step explanation:
The solution is the point of intersection of the lines.
Read that point off the graph.
Start from the point where the x-axis and the y-axis intersect. Go left 1 unit. That is x = -1. Now go down 2 units. That is y = -2. The point that has x-coordinate -1 and y-coordinate -2 is the point (-1, -2). That is the solution.
The point is (-1, -2).
Answer: C. (-1, -2)
Find a. Round to the nearest tenth.
Answer:
use for formula a^2+b^2=c^2 to execture
*" ^ " means square or to the power of two
Step-by-step explanation:
Write [tex]7^{-3}[/tex] as a fraction
Answer:
[tex]\frac{1}{343}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{-m}[/tex] ⇔ [tex]\frac{1}{a^{m} }[/tex] , then
[tex]7^{-3}[/tex]
= [tex]\frac{1}{7^{3} }[/tex] = [tex]\frac{1}{343}[/tex]
Solve for and the indicated angles.
G
90°
F
(4x + 13)
(5x + 14)
D
E
ok so as all of the angles in a triangle is 180 so
At the school carnival, Jade has a game booth with a spinner. The banner at her booth reads "20% chance of winning!" What is the chance that a player may not win? (5 points) Group of answer choices 90% 50% 80% 40%
Answer: 80%
Step-by-step explanation:
100% chance is normally the most so 100 is our whole. 100-20=80. That being the % makes 80% as the answer. Hope i helped!
HELPP PLEASE ASAP I REALLY NEED HELP
attachment below
3. CONSTRUCTION A rectangular deck is built
around a square pool. The pool has side length s. The
length of the deck is 5 units longer than twice the side
length of the pool. The width of the deck is 3 units
longer than the side length of the pool. What is the
area of the deck in terms of s?
Did I do this right or was I supposed to leave it as a trinomial?
Answer:
[tex]s^2+11s+15[/tex]
Step-by-step explanation:
Let side length of pool=s
According to question
Length of rectangular deck , l=2s+5
Width of rectangular deck, b=3+s
We have to find the area of deck in terms of s.
We know that
Area of square=[tex](side)^2[/tex]
Area of rectangle=[tex]l\times b[/tex]
Using the formula
Area of pool=[tex]s^2[/tex]
Area of (rectangular deck+ pool)=[tex](2s+5)(3+s)[/tex]
Now,
Area of rectangular deck
=[tex](2s+5)(3+s)-s^2[/tex]
[tex]=6s+2s^2+15+5s-s^2[/tex]
=[tex]s^2+11s+15[/tex]
The angles of quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral.
Step-by-step explanation:
let the ratio be x
now,
3x+5x+9x+13x=360°(sum of angle of quadrilateral is 360°)
30x=360°
x=360/30
x=12°
then,
3x=3×12=36°
5x=5×12=60°
9x=9×12=108°
13x=13×12=156°
so,the angles of quadrilateral are 36°,60°,108°& 156°
hope it helps.
What are the answers? i’m not sure how to solve this.
Problem 2: Raylin wants to buy a new bike for $85. She already has $22 saved and her mom will
give her $2.50 for each chore she does. What is the least amount of chores Raylin must do in order
to save enough money to buy the bike?
Answer
22
23
24
25
26
Cost of a bike Raylin wants to buy = $85
Money Raylin already has = $22
Money she needs :
[tex] = \tt85 - 22[/tex]
[tex] = \tt\$63[/tex]
Thus, money Raylin still needs = $63
Money she gets from doing one chore = 2.50
Number of chores the needs to do :
[tex] = \tt \frac{63}{2.50} [/tex]
[tex]\color{plum} =\tt 25 \: chores[/tex]
Thus, Raylin needs to do 25 chores to be able to buy the bike.
Therefore, the correct option is (d) 25
A customer asked Crazy Dave to split a pie into sixths. This is what he did: Explain why he is wrong and show a correct way to do it.
Answer: He split it into unequal halves which would make his way wrong. the correct way to do it would be to cut it so all the lines met in the middle of the pie
Step-by-step explanation:
A triangle with vertices (0,0), (3,6), (7,4) is dilated by a factor of 3 with its center at the origin.
Answer:
[tex]A' = (0,0)[/tex]
[tex]B'= (9,18)[/tex]
[tex]C'= (21,12)[/tex]
Step-by-step explanation:
Given
[tex]A= (0,0)[/tex]
[tex]B= (3,6)[/tex]
[tex]C= (7,4)[/tex]
[tex]k = 3[/tex] -- dilation factor
Required
Determine the coordinates of the new triangle
This is calculated using:
[tex]New = Old * k[/tex]
So, we have:
[tex]A' = A *3[/tex]
[tex]A' = (0,0) *3[/tex]
[tex]A' = (0,0)[/tex]
[tex]B' = B * 3[/tex]
[tex]B'= (3,6)*3[/tex]
[tex]B'= (3*3,6*3)[/tex]
[tex]B'= (9,18)[/tex]
and
[tex]C' = C * 3[/tex]
[tex]C'= (7,4)*3[/tex]
[tex]C'= (7*3,4*3)[/tex]
[tex]C'= (21,12)[/tex]
Carla was asked to draw all the lines of symmetry for a regular pentagon. She drew
the picture below. What was Carlas mistake? Explain in detail what she did wrong
and what the correct image would look like.
Answer:
Simple, Her Pentagon is not straight
Step-by-step explanation:
Carla's Pentagon is not straight. Her symmetry line is off scale. Simply fix the Line on the pentagon And it will be correct.
Hope this helps ^
We have that the correct Pentagon should have
Her Pentagon lacks perpendicularity between the two base PointsHer Pentagon lacks perpendicularity between the two middle pointsThe vertical link to the top vertex is not straightSymmetry
This can be defined as an exact correspondence between different part of a system .
Therefore it can be said that Carla's Pentagon lacks Symmetry
Where a
Pentagon
is defined as a a shape with five sides and five angles
In this sense the is absolutely nothing with Carla's Pentagon
But if Carla is going for a pentagon with equal sides and and, Then
Her Pentagon lacks perpendicularity between the two base PointsHer Pentagon lacks perpendicularity between the two middle pointsThe vertical link to the top vertex is not straightFor more information on this visit
https://brainly.com/question/17054992
Plz answer
3x+5x=32.
Step-by-step explanation:
start by adding like terms which would gice us
3x+5x=8x so,
8x=32 divide by 8 on both sides so we leave x by itself giving us x=4
When I subtract 14 from it,
the result is 13 more than 20.
what is the number?
Answer:47
Step-by-step explanation:
Make a hypothesis that the number is X, so X-14=20+13
X=20+13+14, eventually, you'll get that X=47
But I'm not sure if you mean 13 times more than 20, or just 13 more than 20
PLEASE HELP ME!!!!
Find the volume of this sphere.
Use 3 for pi.
Answer:
904cm3 just use an online sphere calculator they're easy to use
YALL WHAT IS THE ANGLE OF C
65
65
Answer:
A,G
Step-by-step explanation:
Answer:
50 degrees
Step-by-step explanation:
Find the weight of one ciricle
Answer:
Weight Calculator
Standard conversion factors.
1) MILD STEEL (MS)
MS SQUARE. WEIGHT (KGS ) = WIDTH X WIDTH X 0.00000785 X LENGTH. ...
MS ROUND. WEIGHT (KGS ) = 3.14 X 0.00000785 X ((diameter / 2)X( diameter / 2)) X LENGTH. ...
SS ROUND. DIA (mm) X DIA (mm) X 0.00623 = WEIGHT PER METRE. ...
SS / MS CIRCLE. ...
SS sheet. ...
S.S HEXAGONAL BAR.
Step-by-step explanation:
Write the equation in slope-intercept