Answer:2^7 ≠ 7^2
Step-by-step explanation:
2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2
The only factor is 2
7^2 = 7 * 7
The only factor is 7
Comparing the factors when written as a repeated multiplication,
2^7 and 7^2 have no common factor :
2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2 = 128
7^2 = 7 * 7 = 49
A circle has a radius of 4 inches. What is
the circumference?
A.25.12 inches
B.12.56 inches
Answer:
4 x 3.14 x 2 = 25.12 inches
Step-by-step explanation:
Formula of circumference:
3.14(pi) x 2(the number is just always there when finding circumference) x radius(half of your diameter or just your given radius).
HELP HELP HELP HELP
What is the equation of the trend line in the scatter plot ?
Answer:
The equation for the trend line is y=2x-10
Constant of Variation
State the relationship between the graphs of f(x) and g (x)
f(x) = -5/x, g )x) 5/x
a. f and g are reflections of each other about the y-axis.
b. f and g are reflections of each other about the x-axis.
c. g is shifted to the left 5 units relative to f, otherwise they are the same.
d. g is shifted to the right 5 units relative to f, otherwise they are the same.
Please select the best answer from the choices provided.
Answer:
B. f and g are reflections of each other about the y-axis.
Step-by-step explanation:
I calculated it logically
whats 5 plus 10 multiply by 2 then 75
Answer:
105
Step-by-step explanation:
Answer:
1505
Step-by-step explanation:
5 + 10 × 2 × 75
1505
What is the answer for -6d < 24
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Answer:
d > -4
Step-by-step explanation:
Divide both sides of the inequality by -6. That requires the sense of the comparison to be reversed.
(-6d)/(-6) > (24)/(-6)
d > -4
Plz help this is due today NO LINKS OR GROSS PICTURES OR I Will REPORT And please show work
Answer: 8 is the total volume i think pls dont judge me if im wrong
Step-by-step explanation:
1) Find the circumference and area of each circle:
a)
b)
10 ft
6 cm
or
C
A=
Answer:
a] Radius of circle = 10 feet
Circumference of circle = 94.2 feet (Approx.)
Area of circle = 314 feet² (Approx.)
b] Radius of circle = 6 cm
Circumference of circle = 37.68 cm (Approx.)
Area of circle = 113.04 cm² (Approx.)
Step-by-step explanation:
Given:
a] Radius of circle = 10 feet
b] Radius of circle = 6 cm
Find:
Circumference an area for both circle
Computation:
Circumference of circle = 2πr
Area of circle = πr²
a] Radius of circle = 10 feet
Circumference of circle = 2(3.14)(10)
Circumference of circle = 94.2 feet (Approx.)
Area of circle = (3.14)(10)²
Area of circle = 314 feet² (Approx.)
b] Radius of circle = 6 cm
Circumference of circle = 2(3.14)(6)
Circumference of circle = 37.68 cm (Approx.)
Area of circle = (3.14)(6)²
Area of circle = 113.04 cm² (Approx.)
A line has a slope of -5 and has a point of (-2,2) and (-1, -3). Write the equation for the line in slope intercept form.
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Answer:
y = -5x -8
Step-by-step explanation:
The y-intercept can be found from ...
b = y -mx
Using the first point, we have ...
b = 2 -(-5)(-2) = -8
Then the slope-intercept equation is ...
y = mx + b . . . . . . . . for slope m and y-intercept b
y = -5x -8
Answer:
the answer is
y=-5×-8
Step-by-step explanation:
:))
PLEASE HELP I WILL GIVE BRAINLIEST!!!
Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester. She wants to know what she needs to earn on the last test to maintain her grade. Rearrange the following equation for b, where C is the average of 2 test scores, a and b.
C equals the quantity a plus b all over two
b equals two times C over a
b = 2C + a
b = 2C − a
b = 2C(a)
Answer:
Hi i know im very late answering this question but i believe the correct option is: b = 2C - a
Step-by-step explanation:
I believe this is the answer because:
2C = the average of 2 test scores combined
A and B = the two scores
were trying to solve for b so what we would do to figure that out is have the average of both test scores and then subtract A which will leave you with only B. therefor the answer is B = 2C - a
hope this helped.
what number between 121 and 149 is exactly divisible by both 3 and 5
Answer:
135
Step-by-step explanation:
135 by 3 is 45
by 5 is 27
Answer:
135
Step-by-step explanation:
135 ÷ 5 = 27
135 ÷ 3 = 45
hope this helps
You tell your 3 friends that you are going to a magic show. It turns out, in an amazing coincidence, they each
have tickets to the same magic show. The dissapointing part is that all 4 of you are sitting in different places at
the event. During the show, the magician asks for 4 brave volunteers. If you and all of your friends raise your
hands as well as 16 other audience members for a grand total of 20 volunteers.
What is the probability that you and your 3 friends will be selected. Write your answer as a simplified
fraction.
Answer:
[tex]\frac{1}{4845}[/tex] probability that you and your 3 friends will be selected.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question, the order in which the volunteers are chosen is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Desired outcomes:
You and the 3 friends(4 people), from a set of 4. So
[tex]D = C_{4,4} = \frac{4!}{4!0!} = 1[/tex]
Total outcomes:
20 people from a set of 20. So
[tex]T = C_{20,4} = \frac{20!}{4!16!} = 4845[/tex]
Probability:
[tex]p = \frac{D}{T} = \frac{1}{4845}[/tex]
[tex]\frac{1}{4845}[/tex] probability that you and your 3 friends will be selected.
Robert is lying on the ground, looking at the top of a flagpole. The angle of elevation to the top of the flagpole is 25°. What is the height of the flagpole if the distance from his eyes at the ground to the base of the flagpole is 200 ft?
A.85 ft
B.181 ft
C.93 ft
D.429 ft
When factoring the difference of two squares, what will the signs in the parenthesis be
Answer:
The signs will be + and -
Step-by-step explanation:
Required
The signs in the parenthesis of difference of two squares
Let the expression be:
[tex](x^2 - a^2)[/tex]
Expand
[tex]x^2 - a^2 = x^2 -ax + ax - a^2[/tex]
Factorize
[tex]x^2 - a^2 = x(x -a) + a(x - a)[/tex]
Factor out x - a
[tex]x^2 - a^2 = (x +a)(x - a)[/tex]
See that the sign in front of a is + and - in the parentheses
The ages in years of 10 teachers of a school are : 32, 41, 28, 54, 35, 26, 23, 33, 38, 40. What is the range of ages of the teachers?
Answer:
The range is 31
Step-by-step explanation:
Range is highest number - lowest number.
The highest number is 54 and the lowest is 23.
54-23=31
Given f(x)= . What is Limit of f (x) as x approaches negative 1?
–2
–1
1
2
Answer:
-1
Step-by-step explanation:
The limit of a function f(x) as x tends to 'a' is obtained by substituting the value of a into f(x)
Here, f(x) = x ; as x - - > - 1
Limit of f(x) = - 1
Yonghui works as a waiter in a Chinese restaurant. He got $104 tip on Monday and $59 more on Tuesday. How much did he get on Tuesday?
Answer:
163$
d#ddddddddddddd
Step-by-step explanation:
104+59=163
right three million, eight hundred sixty-two thousand, seven hundred ninety-five standard: and expanded:
Answer:
Expanded: 3,000,000- 800,000- 60,000- 2,000- 700- 90- 5
Standard: 386,2795
Hope this helps!!
On May 14, 2008, Winning Brew ran the horse race at
the Penn National Race Course, Grantville, Pa with a
record speed at 70.76 km/h.
Convert the speed to miles per hour.
Use this conversion factor as needed:
mile = 1.61 kilometers.
Round your answer to the hundredths place.
43.95
divide the KM speed with 1.61 because 1 mile equals 1.61 KM
Assume you have five candidates for recruitment and their scores on interview and job knowledge test is below. The interview is measured on scale of 1-25 points and job knowledge is measured on a scale of 1-100 points. Based on the scores of these two tests for the five candidates, who would you select as a finalist. Please note that you need to use the method we used in class to find out the finalist for selection. Describe the answer with the appropriate calculations as we did in the exercise in class.
Answer: Hi your question is incomplete below is the missing part
Candidate Interviewscore Job Knowledge Test Score
Frank. 14 89
Sally 21 77
Lilly 20 75
Peter 17 82
Jordyn 19 80
Answer : Select Sally because she has the highest Test score
Step-by-step explanation:
For Franck :
Interview score / 25 = 14 / 25 = 0.56
Job knowledge score = 89 /100 = 0.89
Test score = 0.56 + 0.89 = 1.45
For Sally
interview score = 21 / 25 = 0.84
Jon knowledge = 77 / 100 = 0.77
Test score = 0.84 + 0.77 = 1.62 ( Highest test score )
Repeat the same procedure for Lilly , Peter and Jordyn
Lily test score = 1.55
Peter test score = 1.5
Jordyn test score = 1.56
conclusion : select Sally as a Finalist
If x=-4 what is the value of the following expression?
2x^2 +3x -2
18
12
-22
-46
Answer:
i think it's -46 but i don't know srry if this does not help
Step-by-step explanation:
your friend finds the volume of the pyramid. is your friend correct? explain your reasoning
Just say yes or no.
Answer:
Yes
Step-by-step explanation:
Suppose that 50% of the watches produced by a certain factory are defective. A store buys a box with 400 watches produced by this factory. Assume That this is a random sample.(a) Write an expression for the exact probability that at least 215 watches out ofthe 400 are defective. You do not need to numerically evaluate it.(b) Argue whether the normal or the Poisson approximation is appropriate to es-timate the above probability and then estimate it.
Answer:
[tex](a)\ P(x \ge 215)[/tex]
[tex](b)\ P(x \ge 214.5) = 0.07353[/tex]
Step-by-step explanation:
Given
[tex]p = 0.50[/tex] ---- proportion of watches with defects
[tex]n = 400[/tex] --- Number of watches
Solving (a): Represent at least 215 of 400 are defective
In inequalities, at least means: [tex]\ge[/tex]
So, the probability is represented as: [tex]P(x \ge 215)[/tex]
Solving (b): Calculate [tex]P(x \ge 215)[/tex]
Normal or Poisson: Normal distribution is characterized by 2 parameters [tex]\mu[/tex] and [tex]\sigma[/tex].
These two parameters can be easily calculated from the given parameters in the question. So, we solve using normal distribution
Start by calculating the mean
[tex]\mu =np[/tex]
[tex]\mu = 0.50 * 400[/tex]
[tex]\mu = 200[/tex]
Calculate standard deviation
[tex]\sigma = \sqrt{\mu (1 - p)[/tex]
[tex]\sigma = \sqrt{200 * (1 - 0.50)[/tex]
[tex]\sigma = \sqrt{200 * 0.50[/tex]
[tex]\sigma = \sqrt{100[/tex]
[tex]\sigma = 10[/tex]
By continuity correction, we have:
[tex]x \to x - 0.5[/tex]
[tex]x \to 215 - 0.5[/tex]
[tex]x \to 214.5[/tex]
So, we have:
[tex]P(x \ge 215) = P(x \ge 214.5)[/tex]
Calculating [tex]P(x \ge 214.5)[/tex], we have:
[tex]P(x \ge 214.5) = 1 - P(x < z)[/tex]
Calculate z score
[tex]z = \frac{x - \mu}{\sigma}[/tex]
[tex]z = \frac{214.5 - 200}{10}[/tex]
[tex]z = \frac{14.5}{10}[/tex]
[tex]z = 1.45[/tex]
So, we have:
[tex]P(x \ge 214.5) = 1 - P(x < 1.45)[/tex]
Using the z score probability table, we have:
[tex]P(x < 1.45) = 0.92647[/tex]
So, we have:
[tex]P(x \ge 214.5) = 1 - 0.92647[/tex]
[tex]P(x \ge 214.5) = 0.07353[/tex]
If Bill hiked 6.5 miles at a rate of 10.4 mph, how long did it take him to complete his hike?
Answer:
I think it depends how far bill wants to hike..
Step-by-step explanation:
You want to open a checking account at your local bank which offers two options. A standard checking account charges $6 each month plus $.25 for each check written. A select checking account charges $4.50 each month plus $.50 for each check written. Which system of equations can be used to determine the number x of checks that must be written in a month in order for the total charges y for the two checking accounts to be the same?
Answer:
The total charges for the two checking accounts will be the same after 6 checks written.
Step-by-step explanation:
Since I want to open a checking account at my local bank which offers two options, a standard checking account that charges $ 6 each month plus $ 0.25 for each check written, and a select checking account that charges $ 4.50 each month plus $ 0.50 for each check written, to determine which system of equations can be used to determine the number X of checks that must be written in a month in order for the total charges Y for the two checking accounts to be the same, the following calculation must be performed:
6 + 0.25X = Y
4.5 + 0.5X = Y
6 + 0.25x5 = Y
4.5 + 0.5x5 = Y
6 + 1.25 = Y = 7.25
4.5 + 2.50 = 7
6 + 0.25x6 = Y
4.5 + 0.5x6 = Y
6 + 1.50 = Y = 7.50
4.5 + 3 = 7.50
Therefore, the total charges for the two checking accounts will be the same after 6 checks written.
Help me I need help ASAP pls
Answer:
Step-by-step explanation:
-37/4
Answer: 2 1/4
Step-by-step explanation: 5 + 3/4 -3 = 1/2 5 - 3 = 2
write the equation for a parabola with a focus at (-3,-5) and a directrix at x=-7
x=
Answer:
hope this helps
Step-by-step explanation:
equation for a parabola is:
What is parabola?The parabola is the locus of points in that plane that are equidistant from both the directrix and the focus.
Given: focus= (3,-5), directrix at x =-7.
To find equation of parabola we will use distance formula,
√(x+7)²=√(x+3)² + (y+5)²
(x+7)²=(x+3)² + (y+5)²
x²+14x+49= x²+9+6x + (y+5)²
8x + 40 = (y+5)²
x= (y+5)²/8 -5
Hence, the equation of parabola is x= (y+5)²/8 -5
Learn more about equation of parabola here:
https://brainly.com/question/4025891
#SPJ2
u = 9i – 6j
v = 7i + 4j
A) 63.43°
C) 173.66°
B) 109.48°
D) 101.31°
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Answer:
A) 63.43°
Step-by-step explanation:
The two vectors in polar form are ...
u = (√(9²+6²))∠arctan(-6/9) = √117∠-33.69°
v = (√(7²+4²))∠arctan(4/7) = √65∠29.74°
The angle between the two vectors is ...
29.74° -(-33.69°) = 63.49°
THIS IS DUE IN LIKE 5 MINUTES I WILL GIVE YOU BRAIN THING IF ITS CORRECT PLEASE HELP NO LINKS THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT
Which factor would credit card companies most likely use to determine an
applicant's creditworthiness?
A. Number of children
B. Political party
C. Primary language
D. Yearly income
Answer:
I think the anwser is
D. Yearly incomeHOPE IT HELPED
A cylinder has a height of 6 meters and a diameter that is 6 times the measure of the height. Using 3.14 for pi, which of the following can be
used to calculate the volume of the cylinder? (6 points)
Answer:
The volume of the cylinder is 6,104.16 square meters.
Step-by-step explanation:
Given that a cylinder has a height of 6 meters and a diameter that is 6 times the measure of the height, to determine, using 3.14 for pi, which of the following can be used to calculate the volume of the cylinder, the following calculation must be done, knowing that the volume of a cylinder is determined by multiplying Pi by the height by the radius squared, and that the diameter of a circle is twice its radius:
3.14 x 6 x (6x3) ^ 2 = X
18.84 x 18 ^ 2 = X
18.84 x 324 = X
6,104.16 = X
Therefore, the volume of the cylinder is 6,104.16 square meters.
Answer:
(3.14)(18m)2(6m)
Step-by-step explanation:
I took the test
