Answer:
72 divided 12x3 to the second power= 18
Answer: 18
Step-by-step explanation:
72÷ 12 × 3= 18
I hope its help
a jar of coins totalingg 4.58 contains 12 qaurters and five nickles. there are twice as any pennies as there is dimes. how many dims are there
Answer: there are 9 dims
Step-by-step explanation:
Find AB
А.
B
N
M
-3. finele ooie 7
35.
D
22 uz to
с
29
Answer: 15
Step-by-step explanation:
By the trapezoid midsegment theorem,
[tex]\frac{AB+CD}{2}=MN\\\frac{29+AD}{2}=22\\29+AD=44\\AD=15[/tex]
The average fuel efficiency of U.S. light vehicles for 2005 was 21 mpg. If the standard deviation of the population was 2.9 and the gas ratings were normally distributed,
1) What is the probability that the mean mpg for a random sample of 25 light vehicles is under 20?
2) What is the probability that the mean mpg for a random sample of 25 light vehicles is between 20 and 25?
Answer:
1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.
2) between 20 and 25 --> 21-25/2.9 = -1.38
Step-by-step explanation:
Problem #1:
Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.X < 20= z = 20 - 21/2.9/√25= z = -1/2.9/5= z = -1.72414NowP-value from Z-Table:
P(x<20) = 0.042341Problem #2:
21-25/2.9 = -1.38The function f(x) = –(x – 3)2 + 9 can be used to represent the area of a rectangle with a perimeter of 12 units, as a function of the length of the rectangle, x. What is the maximum area of the rectangle?
3 square units
6 square units
9 square units
12 square units
Answer:
9
Step-by-step explanation:
Option C is correct, the maximum area of the rectangle is 9 square units.
What is Area of Rectangle?The area of Rectangle is length times of width.
The equation f(x) = –(x – 3)² + 9 can be used to represent the area of a rectangle with a perimeter of 12 units.
We can determine the maximum area of the rectangle by finding the maximum value of the function.
To find the maximum, we take the derivative of the function and set it equal to zero, then solve for x.
f'(x) = -2(x - 3) = 0
x = 3
When x = 3, the maximum area of the rectangle is 9 square units.
Hence, the maximum area of the rectangle is 9 square units, Option C is correct.
To learn more on Rectangles click:
https://brainly.com/question/20693059
#SPJ7
the area of a triangle is 6 and 3/8 square yards. The height of the triangle is 2 and 1/2 yards. What is the length of the base of the triangle? pls help this is a important question
Solution:
Note that:
Area of triangle = 6 3/8 yd²Height of triangle = 2 1/2 Area of triangle = 1/2 x base x altitudeUse the formula to find the base of the triangle.
1/2 x base x altitude = 6 3/8 yd²=> 1/2 x base x 2 1/2 = 6 3/8 yd²=> 1/2 x base x 5/2 = 6 3/8 yd²=> 5/4 x base = 6 3/8 yd²=> base = 6 3/8 ÷ 5/4 yd=> base = 51/8 x 4/5 yd=> base = 51/2 x 1/5 yd=> base = 51/10 ydThe length of the base is 51/10 yards.
[tex]\large{|\underline{\mathtt{\red{G}\blue{i}\orange{v}\pink{e}\blue{n}\purple{}\green{}\red{↯}\blue{}\orange{}}}}[/tex]
Area of triangle = 6 3/8 yards²Height of triangle = 2 1/2 yards[tex]\large{|\underline{\mathtt{\red{T}\blue{o}\orange{\:}\pink{F}\blue{i}\purple{n}\green{d}\red{↯}\blue{}\orange{}}}}[/tex]
Base of triangle = ?[tex]\large\underline{\underline{\maltese{\blue{\pmb{\sf{\: Explanation :-}}}}}}[/tex]
[tex] \boxed{\mathfrak{area = \frac{1}{2} \times base \times height}}[/tex]
We are already given the values, Let's plug them and solve for x i.e base
[tex] \bf\: 6 \frac{3}{8} = \frac{1}{ \cancel2} \times x \times \cancel2 \frac{1}{2} [/tex]
[tex] \bf \: 6\frac{3}{8} = x \times \frac{1}{2} [/tex]
Convert the mixed number to an improper fraction
[tex] \bf \: \frac{51}{8} = \frac{1}{2} x[/tex]
Multiply both sides of the equation by 2
[tex] \boxed{ \tt \: x = \frac{51}{4} }[/tex]
➪ Therefore, The base of the triangle is 51/4 yards...~
The price of an item has been reduced by 40%. The original price was $28 .
Answer:
$16.80
Step-by-step explanation:
Given the following question:
40% of 28
To find the new price of the item we use the formula to calculate percentages then we take that answer and subtract it from the original price.
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{40\times28}{100}[/tex]
[tex]40\times28=1120[/tex]
[tex]1120\div100=11.2[/tex]
[tex]=11.20[/tex]
Subtract from original cost:
[tex]28[/tex]
[tex]28-11.20=16.8[/tex]
[tex]=16.80[/tex]
New price of the item is "$16.80."
Hope this helps.
An individual with low income experiences victimization followed by severe depression. The dual effect of low income and victimization is called what
The dual effect of low income and victimization is called
compounding vulnerabilityWhat is Low Income?This refers to the marginally low returns which a person gets as a result of work done over a particular time period.
With this in mind, we can see that when a person earns low income, often he is victimized because he earns so little and as a result of this, such a person can become depressed and this aftereffect is known as compounding vulnerability.
Read more about low income here:
https://brainly.com/question/1985270
1. A criminologist is interested in determining whether prison terms differ for white and
black defendants convicted of burglary. She selected at random 18 records of burglary
convictions and compared the prison terms for the 10 white convicts and 8 black convicts
in the sample. The sentence lengths (in years) are shown in the table below. Using these
data, test the null hypothesis at the .01 a level that white and black defendants convicted
of burglary do not differ in sentence length.
The hypothesis is a two-sided test, because the distribution is two-sided and if a sample is greater than or less than a range of values.
How to explain the hypothesis?From the complete information, the null hypothesis is that whites and blacks convicted of burglary in this jurisdiction do not differ with respect to prison sentence length.
The alternate hypothesis is that whites and blacks convicted of burglary in this jurisdiction differ with respect to prison sentence length.
Also, the hypothesis is a two-sided test, because the distribution is two-sided and if a sample is greater than or less than a range of values.
Learn more about hypothesis on:
https://brainly.com/question/11555274
Which statement describes the relationships between x and y in these two equations?
y = 25x
y = x + 25
In y = 25x and y = x + 25, the value of y is 25 times more than the value of x.
In y = 25x, the value of y is 25 times the value of x, and in y = x + 25, the value of y is 25 more than the value of x.
In y = 25x and y = x + 25, the value of y is 25 more than the value of x
In y = 25x, the value of y is 25 more than the value of x, and in y=x+ 25, the value of y is 25 times the value of x.
Add these fractions 5/7 + 2/7 is it to 3 or
Answer:
1
Step-by-step explanation:
5/7+2/7 add the numerator to equal 7/7 simplify to 1/1 equals 1
Let \[f(x) = (x-1)(x-3)(x+5) + 72.\] Find the sum of all values of $x$ such that $f(x) = 72$.
Answer:
Step-by-step explanation:
f(x) = (x-1)(x-3)(x+5) + 72
if f(x) = 72, then
(x-1)(x-3)(x+5)=0
do
x-1=0, x=1
x-3=0, x=3,
x+5=0, x=-5
Answer:
x = 1, 3, -5
The values of x are 1, 3, and 5. Then the sum of the values of the x will be 1 + 3 + 5 = 9
What is a function?The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.
The function is given as below.
f(x) = (x – 1)(x – 3)(x + 5) + 72 ...1
And
f(x) = 72 ...2
From equations 1 and 2, we have
(x – 1)(x – 3)(x + 5) = 0
The value of x will be
x = 1, 3, and 5
The sum of the values of the x will be
⇒ 1 + 3 + 5 = 9
More about the function link is given below.
https://brainly.com/question/5245372
find the area and the circumference of a circle with the radius of 5 cm use the value 3.14 and do not round your answer
Answer:
31.42
Step-by-step explanation:
2πr=2·π·5≈31.41593
If you have bags in your inventory for more than three months, you plan to mark down the selling price by 25%. What will the markdown price be?
(Anyone got any accurate comments/answers)
Answer:
i don't know what to write
Given the m∠5 = 45°, find the measure of ∠8.
Question 1 options:
35°
45°
135°
145°
Answer:
(c) 135°
Step-by-step explanation:
Angles 5 and 8 form a linear pair, which means they are supplementary: their measures total 180°.
∠8 = 180° -∠5 = 180° -45°
∠8 = 135°
This composite figure is made up of three simpler shapes. What is the approximate area of the figure? Use 3.14 for it som 8 cm
Answer:
A. 67.12 cm²
Step-by-step explanation:
The rectangle is 3 cm by 6 cm.
area of rectangle = 3 cm × 6 cm = 18 cm²
The triangle has a 6 cm base and an 8 cm height.
area triangle = 6 cm × 8 cm / 2 = 24 cm²
The semicircle has a diameter of 8 cm and a radius of 4 cm.
area semicircle = (1/2)(3.14)(4 cm)² = 25.12 cm²
Add the three areas to find the total area.
18 cm² + 24 cm² + 25.12 cm² = 67.12 cm²
Answer: A. 67.12 cm²
Find the value of x. Round to the nearest tenth.
20
X
35
Answer:
i think it's 40 I don't know.
Step-by-step explanation:
(:
Lynn needs to save up $20 for a new game. How much money does she have if she has saved each percentage of her goal 25%, 75%,125%
$50
25% of 20 is $5
75% of 20 is $15
125% of 20 is $25
25
15 +
5
___
50
___
Which of the following is an example of the Multiplication Property of Zero?
find the length of x when you have 35 and 12
When I asked 35 what is the length of x is he answered it was 45. I didn't believe him so I went to his wife, 12 and asked her how long was x. She also said 45. I was like ooh. Cool. OK. good. Radical.
The price of a 7-minute phone call is $1.05 . What is the price of a 14-minute phone call?
Answer:
$2.10
Step-by-step explanation:
Since 7 minutes is half of 14 minutes, the price of the 14 minutes phone call must be two times the cost of the 7 minute phone call.
[tex]\frac{14}{7}[/tex]= 2
$1.05 should be multiplied with 2 to find the price of the 14 minute phone call.
$1.05 × 2 = $2.10
izza izza izza izza izza izza
Find the measure of the three missing angles in the parallelogram below.
Answer: x = 77 degrees, y = 77 degrees, z = 103 degrees
Step-by-step explanation:
Since y and 103 are essentially same side interior angles, they must add up to 180. Therefore, y = 180-103 = 77 degrees.
Opposite angles of a paralellogram are equal.
Therefore, x = y = 77 degrees and z = 103 degrees
The measure of the three missing angles in the parallelogram are,
⇒ ∠x = 78
⇒ ∠ y = 78°
⇒ ∠z = 103°
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
The parallelogram shown in figure.
We know that;
By Opposite Angles Theorem,
In parallelogram, The two opposite angles of a parallelogram are equal to each other.
Hence, We get;
⇒ ∠z = 103°
⇒ ∠x = ∠y
And, The sum of all angles in a parallelogram is 360°.
Hence, We get;
⇒ ∠x + ∠y + ∠z + 103° = 360
⇒ ∠x + ∠x + 103 + 103 = 360
⇒ 2∠x + 206 = 360
⇒ 2∠x = 360 - 206
⇒ 2 ∠x = 156
⇒ ∠x = 78
And, ∠ y = 78°
Learn more about the rectangle visit:
https://brainly.com/question/2607596
#SPJ2
What is m
A) 40°
B) 60°
C) 75°
D 80°
7. On average, 2 apples out of 15 are classified as being underweight. Find the probability that, in a
random sample of 200 apples, the number of apples which are underweight is more than 21 and
less than 35.
Answer:
200/15=13.22222. x 15= 26.666. 26.66666 is between 21 & 35.
PLEASE HELP WILL MARK BRAINLIEST: What is the Interquartile range of the set of data this box-and-whisker plot represents?
Answer:
3
Step-by-step explanation:
Lower quartile (xL): 13.5
Upper quartile (xU): 18.5
Interquartile range (xU-xL): 3
Thanks!
Answer:
3 is the interquartile range.
To find interquartile range:
First find the upper quartile.Secondly, find the lower quartileinterquartle range (IQR) : upper quartile(Q3) - lower quartile (Q1)Here:
upper quartile(Q3) = 18lower quartile(Q1) = 15using the formula:
→ 18 - 15
→ 3
(I NEED THE ANSWER) Select the number that would make this statement true: 344 ÷ ________ = 34.4 (3 points)
104
103
102
101
Answer:
The closest would probably be 101
Step-by-step explanation:
Find the equation of the parabola that passes through the points (6, 10), (-2, 18) and (4, 51).
33. Recall that the constant multiplier of an exponential function is known as an
exponential decay factor when the constant is between 0 and 1. Rewrite the function f(x)
- 100e * with a constant multiplier between 0 and 1.
Answer:
langdhhh hug you want to be a great day sujain vailet colourfor deniplan speech in the world same thing is the best friend to the new one of lesson geography important to you all for the next day sujain vailet colourfor deniplan speech in the world to the next day I will be back
What does PITI stand for?
Please help with this Algebra question
Answer:
x = -2, y = -1, z = 1
Step-by-step explanation:
From (3), z = 2x + 5
From (2) y = (x - 2)/4
Sub them into (1):
5x - 6*(x - 2)/4 + 3(2x + 5) = -1
5x - 3x/2 + 3 + 6x + 15 = -1
19x/2 = -19
x/2 = -1
x = -2
y = (x - 2)/4 = (-2-2)/4 = -1
z = 2x + 5 = 2(-2) + 5 = 1
