What is the value of: -7/3 (1/2) (-1/2)?
Answer:
2.5
Step-by-step explanation:
Hope I helped
A newspaper ran a story concerning the increasing prices of mobile phones. The story stated that mobile phone prices dropped a few years ago, but now are beginning to increase in price because of added features.
• According to the story, the average price of all mobile phones a few years ago was £215.
• A large random sample of mobile phones (n = 200) was taken, and their prices recorded.
• We wish to use a hypothesis test to determine if the average price of all mobile phones is now greater than £215.
Required: Define the hypotheses, and with reference to the applicable random variable distribution, find the rejection region appropriate for this test if we are using the significance level α = 0.05.
Answer:
H0 : μ = 215
H1 : μ > 215
Rejection region :
Zstatistic > Z0.05
Step-by-step explanation:
Given that:
Average price of all mobile phones was £215
Sample size = 200
Significance level (α) = 0.05
To determine if the average price of all mobile phones is now greater than £215
The Null hypothesis (H0) :
H0 : μ = 215
Alternative hypothesis (H1) :
H1 : μ > 215
The rejection region :
|Zstatistic > Zα|
α = 0.05 ; Z0.05
Rejection region :
Zstatistic > Z0.05
All swimming equipment is on sale with a 40% discount. A snorkeling set regularly sells for $45. Find the discount.
The discount is $18 if the all swimming equipment is on sale with a 40% discount. A snorkeling set regularly sells for $45.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
We have:
All swimming equipment is on sale with a 40% discount. A snorkeling set regularly sells for $45.
The regular price = $45
The discount is worth = 40% of 45
= (40×45)/100
= $18
Thus, the discount is $18 if the all swimming equipment is on sale with a 40% discount. A snorkeling set regularly sells for $45.
Learn more about the percentage here:
brainly.com/question/8011401
#SPJ1
Describe the likelihood that a point chosen inside the circle will also be inside the hexagon?
Answer: likely
Step-by-step explanation:
B) Likely
Step-by-step explanation:
i just just answered the question on e d g e n u i t y
i hope this helps <3
1. What percent of 5 is 4?
What are we looking for?
5: a part or a whole?
4: a part or a whole?
Variable: ______=______
Answer:
1. 125% We are looking for the percentage. 5: Whole 4: Part
Step-by-step explanation:
what is 150mm in meters
Answer:
150 millimetres = 0.15 metreWhich point is located at (Negative 0.5, 0.75)?
Answer: Is there a graph that goes with it?
Step-by-step explanation:
Answer: There is no graph?
Step-by-step explanation:
El 5% de los focos producidos por una fabrica son defectuosos. Al extraer una muestra de 6 focos. ¿Cual es la probabilidad de que menos de 3 focos sean defectuosos?
Answer:
3/10 no estoy segura pero creo que es esto
Beth is making a rope ladder each step of the ladder is 2 1/3 feet wide width as a rope that is 21 feet long how many steps can she make from the rope
Answer:
Answer: She can make 9 steps from the rope.
Step-by-step explanation:
Given : The width of each step of the ladder = 2\dfrac{1}{3}\text{ feet}2
3
1
feet = \dfrac{2(3)+1}{3}=\dfrac{7}{3}\text{ feet}
3
2(3)+1
=
3
7
feet
The length of the rope = 21 feet
Then , the number of required steps = ( length of the rope ) ÷ (width of each step of the ladder)
=21\div\dfrac{7}{3}=21÷
3
7
=21\times\dfrac{3}{7}=3\times3=9=21×
7
3
=3×3=9
Hence, the number of steps can she make from the rope = 9.
What number divided by−3 gives 12 as the result?
Answer:
-36
Step-by-step explanation:
x / (-3) = 12
x = 12*(-3)
x = -36
Write the number, (2 × 10) + (9 × 1) + (7 × 1/10) + (8 x 1/1,000) in standard form
Answer:
The number is 209.708
Step-by-step explanation:
IT'S ON KHAN
Answer:
the answer is 209.708
Step-by-step explanation:
Whenever u see something like 1/1,000, that means is a decimal
So the answer is simple
2 x 10 =20
9 x 1= 9
then u got the decimal
.708
so, the answer is 209.708
hope it helps :)
GIVING BRAINLIEST FOR WHO ANSWERS FIRST.
Answer:
T =54 degrees
since x=10
6x-6 =54
are you clear, if yes give me brainliest and if no draw my attention by hitting the comment section
QUESTION: Determine if the statement is true or false? if false give an counterexample.
How is it true and false? can you help me please? Log*(f)4(3d)+log*(4)(3d)
the *() means its the base and below the log. Please help :)
oh my please its due in a few minutes certain answers only and please explain how its correct or I will bawl my eyes out...... (>^.^>) Thank you in advance.
PLEASEEEEEEEEEEEEEE NO FAKE ANSWERS OR YOU GET NO BRAIN CROWN AND REPORTED EXPLAIN PLEASE DUE IN FEW MINUTES :)))
Answer:
FalseStep-by-step explanation:
Actual question is:
logf 4(3d) + log4 1 = log4 3dSolution:
logf 4 + logf (3d) + 0 = log4 (3d)logf 4 + logf (3d) = log4 (3d)If we assume f = 4, then
log4 4 + log4 (3d) = log4 (3d)log4 4 = 0but log4 4 = 1
1 = 0 is impossibleTherefore the statement is False
name the segment in the scaled copy that corresponds to segment AD
Answer:
Give diagram please?.
Step-by-step explanation:
???
I need a diagram to answer. Or at least the answer choices.
A grocery sells green apples and red apples. On Monday, the store put 500 of each kind of apple on display. That day, the store sold 42 red apples and 57 green apples. On Tuesday, the store sold 87 red apples and 75 green apples. On Wednesday, the store sold 29 red apples and 38 green apples. a. Write an addition expression using negative integers and find the number of red apples the store sold.
Answer:
342 red apples
Step-by-step explanation:
42+87+29=158
500-158=342
Answer:
342
Step-by-step explanation:
i took the quiz on brainly and got a 100% Hope this helps
1. Approximately what was the total expenditure on entertainment if separated amount of $11,406.30, $1,669.72, $2,506.81 and $1,930.20 were spent?
Answer:
The approximate expenditure spent on entertainment is $17,513
Step-by-step explanation:
To get the total entertainment expenditure, we simply add up all these values
We have;
11,406.30 + 1669.72 + 2506.81 + 1930.20 = 17,513.03
The total expenditure spent on entertainment is approximately $17,513
How many filled sandwich cookies would you need to reach of 1700 mm if you only had one top of the cookie, the stuffing and one bottom of the cookie? Height of top of cookie 3.5 mm height of stuffing 2 mm and height of bottom of cookie 3.5 mm
Answer:
??
Step-by-step explanation:
Solve for x.
14 = 28 + 7x
Answer:
X = 2
Step-by-step explanation:
14= 28 + 7x
28 - 14 = 7x
14 = 7x
14 / 7
2 = x
Answer:
x = − 2
Step-by-step explanation:
What's the equation of a horizontal line through the point (4,-6)
I need help with this
Answer:
i know 4 is scalene
not sure about 3
Hermina cut a ft by ft piece of plywood down the diagonal.
A rectangle is 4 feet wide and 8 feet long. A diagonal cut is shown with a line labeled c. The cut divides the rectangle in half and creates two right triangles. The hypotenuse of each right triangle is the line labeled c.
What is the length c of the cut, in feet?
Answer:
[tex]\sqrt{80} = c[/tex] is the answer.
Step-by-step explanation:
We can solve this using the Pythagorean theorem.
We know we can use the pythagorean theorem because it has a 90 degree angle.
[tex]a^{2}+ b^{2}= c^{2}[/tex]
We are given the sides 4 and 8.
[tex]4^{2} + 8^{2} = c^{2}[/tex]
[tex]80 = c^{2} \\\\\sqrt{80} = c[/tex]
#teamtrees #WAP (Water And Plant)
Answer:
Step-by-step explanation:
80 feet
The pumpkin patch had two corn mazes, as shown by the shaded and non-shaded sections in the model below.
A model with 4 rows of 7 squares, representing 28 acres, and 2 rows of 7 squares, representing 14 acres.
Which expression is shown by the model?
Answer :
D - 28 + 14 = 7(4+2)
Anyone know the answers to this ?
Answer:
True False True
Step-by-step explanation:
ope this helps! :)
Brainliest pls?
An airplane flew 2,400 miles in 4 hours.if the plane flew the same number of miles each hour, how many miles did it fly in 1 hour ?
Lines QS and NR intersect at P. Ray PM is perpendicular to line SQ.
What is the value of y?
Answer:
A. 13
Step-by-step explanation:
[tex] (6y - 14) + 90 + (2y) = 180 [/tex] (angles on a straight line)
Solve for y
[tex] 6y - 14 + 90 + 2y = 180 [/tex]
Collect like terms
[tex] 6y + 2y - 14 + 90 = 180 [/tex]
[tex] 8y + 76 = 180 [/tex]
Subtract 76 to both sides
[tex] 8y + 76 - 76 = 180 - 76 [/tex]
[tex] 8y = 104 [/tex]
Divide both sides by 8
[tex] \frac{8y}{8} = \frac{104}{8} [/tex]
[tex] y = 13 [/tex]
help pls! thank u! <3
Answer:
she completed 29
Step-by-step explanation:
if she completed 8 in 6 she made 2 more so you add 2 to the 27 which is 29 hope that is the answer
Find the 89th term of the arithmetic sequence
-13, -8, -3
Answer:
427
Step-by-step explanation:
first you have to find the difference between -13 and -8 so we do -13 minus -8 which gives us -13 +8 which is -5. so -13+5=-8 then we try plugging in 5 to the next two numbers -8+5=-3 so the pattern is +5 so now we can do 5*88=440 so now we do -13+440=427
Express rational numbers in reduced form for 27/36
Answer:
3\4
Step-by-step explanation:
hihihihihihihihihihi
The random variable X is known to be uniformly distributed between 2 and 12. Compute E(X), the expected value of the distribution.
Answer:
The expected value of the distribution is 7.
Step-by-step explanation:
The random variable X is known to be uniformly distributed between 2 and 12.
The probability density function of X is:
[tex]f_{X}(x)=\frac{1}{b-a};\ a<X<b[/tex]
Here a = 2 and b and 12.
Compute the expected value of the distribution as follows:
[tex]E(X)=\frac{a+b}{2}[/tex]
[tex]=\frac{2+12}{2}\\\\=\frac{14}{2}\\\\=7[/tex]
Thus, the expected value of the distribution is 7.
What is the measure of angle f?
Answer:
130 fj is a little bit of a good job for the first time in a new generation of companies in a little
Step-by-step explanation:
its 130 inches tall and a good job to do with my first day of work at a time when the first thing you can get to the point where