Answer:
252 in²
Step-by-step explanation:
The 3 by 6 tab on the right is the same size as the 3 by 6 notch on the left
moving the tab into the notch make a perfect rectangle
The size of the rectangle will be
12 by 21
12 * 21 = 252
252 in²
If z = -1.3, mu=80, sigma=30 What is the actual data value? Round to 2 decimal places.
Step-by-step explanation: This simple confidence interval calculator uses a Z statistic and sample mean (M) to generate an interval estimate of a population mean (μ).
Note: You should only use this calculator if (a) your sample size is 30 or greater; and/or (b) you know the population standard deviation (σ), and use this instead of your sample's standard deviation (an unusual situation). If your data does not meet these requirements, consider using the t statistic to generate a confidence interval.
where:
M = sample mean
Z = Z statistic determined by confidence level
sM = standard error = √(s2/n)
As you can see, to perform this calculation you need to know your sample mean, the number of items in your sample, and your sample's standard deviation (or population's standard deviation if your sample size is smaller than 30). (If you need to calculate mean and standard deviation from a set of raw scores, you can do so using our descriptive statistics tools.)
The sides of a triangle are equal to integral numbers of units. Two sides are four and six units long respectively what is the minimum value for the triangles perimeter?
9514 1404 393
Answer:
13
Step-by-step explanation:
The shortest side must satisfy the relation ...
s > 6 -4
The smallest integer s is s=3, so the shortest perimeter is ...
3 + 4 + 6 = 13 . . . units
__
This is 1 unit more than double the longest side.
HELP ME !! AND EXPLAIN HOW YOU GOT IT.
PLEASE ANSWER !! ILL GIVE BRAINLIEST !!
50 POINTS !!
FAKE ANSWERS WILL GET REPORTED .
Answer:
180°, ∠4, ∠5
Step-by-step explanation:
∠1+∠2+∠3 = 180° because, as seen, their sum makes a straight angle. (on the transversal E)
∠2 is equal to ∠4 because of the Alternate Interior Angles theorem
∠1 is equal to ∠5 because of the Corresponding Angles theorem
Translate this into an equation
The product of Helena's age and 3 is 48.
Use the variable h to represent Helena's age.
(x2 + 1)
3
What is the LCD?
+
3 (x - 1) (2x – 7)
Answer:
LCD light conducting diode
A student is assessing the correlation between the number of hours a plant receives sunlight and the height to which it grows. The table below shows the data:
Number of hours of sunlight
(x) 0 1 2 3 4 5 6 7 8 9
Height of plant in cm
(y) 4 7 10 13 16 19 22 25 28 31
Part A: Is there any correlation between the number of hours of sunlight that a plant receives and the height to which it grows? Justify your answer. (4 points)
Part B: Write a function which best fits the data. (3 points)
Part C: What does the slope and y-intercept of the plot indicate about the plant? (3 points)
A study by Consumer Reports showed that 64% of supermarket shoppers believe supermarket brands to be as good as national name brands. the manager of the Publix in Clemson believes 64% is too low for his own store, to investigate whether this result applies to its own store, SC asked a random sample of 100 shoppers whether they believed that supermarket brands were as good as the national brands, 52 believe the supermarket brands were as good as the national brands.
Required:
At the 10% significance level test the managers claim.
Answer:
The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance
The alternative hypothesis is accepted at a 0.05 level of significance
The manager of Publix in Clemson believes 64% is too high for his own store
Step-by-step explanation:
Step:-1
Given that the consumer Reports showed that 64% of supermarket shoppers.
Given that the population proportion
P = 0.64
Given that random sample size 'n' = 100
Given that 52 believe the supermarket brands were as good as the national brands.
sample proportion
[tex]p^{-} = \frac{x}{n} = \frac{52}{100} = 0.52[/tex]
Step:-2
Null hypothesis: The manager of the Publix in Clemson believes 64% is too low for his own store
μ < 0.64
Alternative Hypothesis:H₁:μ > 0.64
Test statistic
[tex]Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }[/tex]
[tex]Z = \frac{0.52-0.64}{\sqrt{\frac{0.64 X 0.36}{100} } }[/tex]
Z = -2.5
Level of significance = 0.05
Z₀.₀₅ = 2.326
The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance
Final answer:-
The null hypothesis is rejected at a 0.05 level of significance
The alternative hypothesis is accepted at a 0.05 level of significance
Complete the assignment on a separate sheet of paper
Please attach pictures of your work.
Answer:
Value of x = 15.1 unit (Approx.)
Step-by-step explanation:
Given:
For angle 54°
Base of triangle = 11 unit
Perpendicular of triangle = x unit
Find:
Value of x
Computation:
Using trigonometry function;
Tanθ = Perpendicular / Base
Tan 54 = Perpendicular of triangle / Base of triangle
Tan 54 = x / 11
1.376 = x / 11
Value of x = 1.376 × 11
Value of x = 15.136
Value of x = 15.1 unit (Approx.)
i will give Brainiest if you are right
Answer:
The answer is $22.75! (A)
Step-by-step explanation:
All you have to do is subtract $36.50 by $13.75 and get the amount of the 2nd piggy bank.
22.75 + 13.75 = 36.50
The perimeters of two squares are in the ratio 2 : 4. The perimeter of
the larger square is 16 centimeters.
What is the perimeter of the smaller square?
Answer:
8
Step-by-step explanation:
2 : 4
8 : 16
I need help with this
Answer:
C. 16 inch 3
Step-by-step explanation:
anyone wanna to study math subject?? as a free coaching??
Step-by-step explanation:
Math is hard.....
and I don't like it anymore
Question
If Johnathon has work 16 hours a day from 8am to 12pm, and he has to drive from point a to b, which the distance is 3600 miles. His car can drive for 700 miles on a full tank of gas, which 1 gallon is 28 miles. What is the amount of stops and gallons of gas to get to point a and b?
Step-by-step explanation:
There are 10 pill bottles. 9 bottles are full of non-poisonous pills and there is one bottle full of poisonous pills. The non-poisonous pills weight 1 ounce each and the poisonous pills weigh 1.1 ounces each. There is a weighing scale that you can use only 1 time. How do you figure which bottle has the poisonous pills?
Answer: open all the bottles count the pills or ask in each bottle the 1 ounce will have 1 less then all of the 1.1 ounce
Step-by-step explanation:
Can you please help me solve this problem using the Pythagorean theorem I’m so lost!!! (I Will give a brainliest if you help)
If a heart beats 15 times in 3 seconds, how many times does it beat in 1/2 minute?
Answer:
150 beats
Step-by-step explanation:
15 times = 3 secs
y = 30
(cross multiply)
3y /3= 450/3
y= 150
For any number the polynomial x ^ 2 - c ^ 2 can be factored as
Answer:
(x + c) (x - c)
Step-by-step explanation:
For any number the polynomial [tex] x ^ 2 - c ^ 2[/tex] can be factored as (x + c) (x - c)
How do you solve this (BRAINLIEST TOO!)
Answer:
We don't even know the answer....
Step-by-step explanation:
Please tell us the answer.
Answer:
Where is tbe question. i need the question
Step-by-step explanation:
E
If 2(x+1)+8(x-1)=5x then x=
Answer:
x= 1.2 or 6/5
Step-by-step explanation:
Answer:
6/5 or 1.2 or 1 1/5
Step-by-step explanation:
but 6/5 is the exact answer
HELP
Which Trig ratio should be used to find the missing side?
A.Sin
B.Cos
C.Tan
Help! Write a recursive for formula
Answer:
cc
Step-by-step explanation:
Will Identify the outlier in the data set. 77, 73, 78, 78, 71, 75, 120, 75, 77, 72, 75, 70 The outlier is
Answer:
120
Step-by-step explanation:
120
every other number is in the 70s
PLEASE HURRY
Kevin rides the bus to school each day. He always arrives
at his bus stop on time, but his bus is late 80% of the time.
Kevin runs a simulation to model this using a random
number generator. He assigns these digits to the possible
outcomes for each day of the week:
• Let 0 and 1 = bus is on time
• Let 2, 3, 4, 5, 6, 7, 8, and 9 = bus is late
The table shows the results of the simulation.
Group number 1
2
3
4
5
Random digits 28713 01792 00095 72765 24943
Group number 6
7
8
9
10
Random digits 39638 24697 | 47511
0929771197
What is the estimated probability that Kevin's bus will be late every day next
week?
Answer:4/10 40%
Step-by-step explanation:
Answer:
Your answer would be 4/10 OR 40%.
Step-by-step explanation:
Which Trig ratio should be used to find the missing side?
A.Sin
B.Cos
C.Tan
Answer:
sin
Step-by-step explanation:
take 34 degree as reference angle
usinf sin rule
sin 34=opposite/hypotenuse
0.55=16/x
x=16/0.55
x=29.09
x=29.1
82.6% into lowest form
Answer:
0.825
Step-by-step explanation:
To convert to lowest form, you have to shift the decimal place 2 places to the left.
Anyone know how to do this
let
(hypotenuse ) c = 10 in
(perpendicular) a = 8 in
(base) b =?
By using Pythagoras theorem
c^2= a^2+b^2
(10)^2 = (8)^2 +(b)^2
100 = 64 +(b)^2
100- 64 = (b)^2
36 = (b)^2
√36 = b
6 = b
hence b= 6 in
Question 3 of 10 Which of the following are exterior angles? Check all that apply. 3 2 5 64 1 O A. 24 B. 26 O C. 25 D. 22. O E. 23 O F. Z1
Answer:
∠4, ∠3, and ∠5
In the shown figure, angles ∠3, ∠4, and ∠5 are exterior angles.
What is the exterior angle?The exterior angle is outside of the polygon. It is additional to the polygon's inner angle at the same vertex. The sum of an exterior angle and its internal angle is always 180 degrees.
To identify the exterior angles in a figure, determine the angles that are on the outside side of two parallel lines but on two sides of the transversal.
In the illustration, if a transversal connects two parallel lines, the angles generated outside the parallel lines are referred to as external angles.
As per the question,
In the shown figure, angles ∠3, ∠4, and ∠5 are exterior angles.
Hence, the correct answers are options A, C, and E.
Learn more about the exterior angle here:
https://brainly.com/question/11379452
#SPJ7
The average monthly cell phone bill was reported to be $50.07 by the U.S. Wireless Industry. Random sampling of a large cell phone company found the following monthly cell phone charges: 55.83 49.88 62.98 70.42 60.47 52.45 49.20 50.02 58.60 51.29 At the 0.05 level of significance can it be concluded that the average phone bill has increased?
Answer:
www.numerade.com/questions/the-average-monthly-cell-phone-bill-was-reported-to-be-5007-by-the-us-wireless-industry-random-sampl/
Step-by-step explanation:
Question #6
Show steps
Correct answer is A
We'll first need to determine what the composite function f(g(x)) is equal to.
Start with the outer function f(x). Then replace every copy of x with g(x). Afterward, plug in g(x) = 3x-2
So we get the following:
[tex]f(x) = \sqrt{x^2-4}\\\\f(g(x)) = \sqrt{(g(x))^2-4}\\\\f(g(x)) = \sqrt{(3x-2)^2-4}\\\\f(g(x)) = \sqrt{9x^2-12x+4-4}\\\\f(g(x)) = \sqrt{9x^2-12x}\\\\[/tex]
Next, we apply the derivative
[tex]f(g(x)) = \sqrt{9x^2-12x}\\\\f(g(x)) = (9x^2-12x)^{1/2}\\\\f'(g(x)) = \frac{1}{2}(9x^2-12x)^{-1/2}*\frac{d}{dx}(9x^2-12x)\\\\f'(g(x)) = \frac{1}{2}(9x^2-12x)^{-1/2}*(18x-12)\\\\f'(g(x)) = \frac{9x-6}{\sqrt{9x^2-12x}}\\\\[/tex]
Don't forget about the chain rule. The chain rule is applied in step 3 of that block of steps shown above.
The last thing we do is plug in x = 3 and simplify.
[tex]f'(g(x)) = \frac{9x-6}{\sqrt{9x^2-12x}}\\\\f'(g(3)) = \frac{9*3-6}{\sqrt{9*3^2-12*3}}\\\\f'(g(3)) = \frac{21}{\sqrt{45}}\\\\f'(g(3)) = \frac{21}{\sqrt{9*5}}\\\\f'(g(3)) = \frac{21}{\sqrt{9}*\sqrt{5}}\\\\f'(g(3)) = \frac{21}{3*\sqrt{5}}\\\\f'(g(3)) = \frac{7}{\sqrt{5}}\\\\[/tex]
Side note: if you choose to rationalize the denominator, then you'll multiply both top and bottom by sqrt(5) to end up with [tex]f'(g(3)) = \frac{7\sqrt{5}}{5}\\\\[/tex]; however, your teacher has chosen not to rationalize the denominator.
Match the base to the corresponding height.
Answer:
See picture
Step-by-step explanation:
Please help me and use laws of exponents
Answer:
5^2x ÷ 5^-3 = 5⁵(5×5×5×5×5)
5^2x ÷ 1/5³(5×5×5) = 3125
5^2x ÷ 1/125 = 3125
5^2 × 4 = 3125
125
5⁸(5×5×5×5×5×5×5×5) = 3125
125
390625 = 3125
125
so the value X is = 4