Use the laws of exponents to simplify the expression:
\(\frac{(-5r^2s^7)^3^{}}{r}\)We know that:
\(\begin{gathered} (ab)^n=a^nb^n \\ (a^n)^m=a^{n\times m} \\ \frac{a^n}{a^m}=a^{n-m} \end{gathered}\)Then:
\(\begin{gathered} \frac{(-5r^2s^7)^3}{r}=\frac{(-5)^3(r^2)^3(s^7)^3}{r} \\ =\frac{-125r^6s^{21}}{r} \\ =-125r^{6-1}s^{21} \\ =-125r^5s^{21} \end{gathered}\)Therefore:
\(\frac{(-5r^2s^7)^3}{r}=-125r^5s^{21}\)A regular deck of cards has a total of 52 cards. (Note: Aces count as 1.) If one card is drawn at random from the deck, find the probability of the following events:
1. It is a diamond
2. It is a jack
3. It is a diamond or a jack
4. It is an ace or a 9
it would be 4 right. if aces are 1 and you draw one card
Select the correct expanded form for (Two-thirds) Superscript 4.
Two-thirds times two-thirds times two-thirds times two-thirds
Two-thirds times two-thirds times two-thirds
Two-thirds + two-thirds + two-thirds + two-thirds
Two-thirds times 4
The correct expanded form using Laws of exponents is:
Two-thirds times two-thirds times two-thirds times two-thirds
How to use laws of exponents?Some of the laws of exponents are:
1) When multiplying like bases, keep the base the same and add the exponents.
2) When raising a base with a power to another power, keep the base the same and multiply the exponents.
3) When dividing like bases, keep the base the same and subtract the denominator exponent from the numerator exponent.
Now, we want to solve the expression given as: (²/₃)⁴
When we expend this, we arrive at:
²/₃ × ²/₃ × ²/₃ × ²/₃
This among the options is Option A which is:
Two-thirds times two-thirds times two-thirds times two-thirds
Read more about Laws of exponents at: https://brainly.com/question/11761858
#SPJ1
Hello! Could someone please help explain how to solve this to me please and an answer would be nice! Thanks! :)
if we notice the tickmarks on the triangle, we can see the all sides are equal, namely is an equilateral triangle, and if all sides are equal, then all interior angles are equal as well.
Let's recall that the sum of all interior angles in a triangle is 180°, now if we divide that by 3, that gives us 60, namely each angle in the equilateral triangle is 60°, that means
\(10x=60\implies x=\cfrac{60}{10}\implies \boxed{x=6} ~\hfill 12y=60\implies y=\cfrac{60}{12}\implies \boxed{y=5}\)
please help and answer ASAP please will mark Brainlest
What is the value of x?
Enter your answer in the box.
x =
°
Answer:
80 degrees
Step-by-step explanation:
The sum of the angles in a triangle is 180 degrees so we can create the equation 70+30+x=180. This solves out to 80 so x=80 degrees.
Solve the equation. X^5-5x^3+4x=0
Answer:
Wait
Step-by-step explanation:
Is a equation or polynomial
Answer:
0, +/- 1. +/- 2
Step-by-step explanation:
\(x^{5} -5x^{3} +4x=0\) Write the equation in the form of P(x) = 0.
\(x(x^{4} - 5x^{2} + 4) = 0\) Factor out the GCF, x.
\(x(x^{2})^{2} - 5x^{2} + 4 = 0\) Factor \((x^{2})^{2}- 5x^{2} + 4 = 0\).
\(x = 0,\) \((x^{2})^{2} - 5x^{2} + 4 = 0\) Let a = \(x^{2}\) and substitute.
\(a^{2} - 5a + 4 = 0\) Factor.
\((a - 4)(a - 1) = 0\) Replace a with \(x^{2}\).
\((x^{2} - 4)(x^{2} -1) = 0\) Factor \((x^{2} - 4)\) as a difference of squares.
\((x -2)(x+2)(x^{2} -1) = 0\) Use the Zero Product Property
\(x = 2, x = -2, x^{2} = -1\)
\(x = 0, 1, -1, 2, -2\)
A person leaves home and walks 4 miles west, then 5 miles southwest.
How far from home is she?
miles
In what direction must she walk to head directly home?
degrees North of East
The person is approximately 8.43 miles from home, and they need to walk in the direction of approximately 26.6 degrees east of north to head directly home.
To determine the distance from home, we can use the concept of vector addition. The person walks 4 miles west, which can be represented as a vector (-4, 0) in a coordinate plane. Then, they walk 5 miles southwest, which can be represented as a vector (-3.54, -3.54) since southwest is a combination of west and south. Adding these two vectors together gives us (-7.54, -3.54).
To find the magnitude or distance from home, we use the Pythagorean theorem. The distance is given by sqrt((-7.54)^2 + (-3.54)^2) = 8.43 miles (approximately).
To determine the direction to head directly home, we need to find the angle between the vector (-7.54, -3.54) and the positive x-axis. We can use trigonometry to find this angle. The tangent of the angle is given by the ratio of the y-coordinate to the x-coordinate, which is -3.54 / -7.54. Taking the inverse tangent of this value gives us approximately 26.6 degrees.
For more such questions on direction
https://brainly.com/question/30016405
#SPJ8
Great Escape bought a vintage bicycle for $3,000. They marked it up 43.3% to sell in their store. Then, they ran a sale for 30% off. What was the discount price of the bicycle?
The discount price is $3009.3.
What is a cost?It is the amount of money spends on the creation or production of goods or services.
The cost price of the bicycle is $3000.
The marked price is given by
3000+(0.433 * 3000) = 4299
The marked price is $4299.
The discount rate is 30%.
The discount price of the cycle is given by
4299 - (0.3 * 4299) = 4299 - 1289.7 = 3009.3
Hence, the discount price of the bicycle is $3009.3.
To learn more about cost, use the link given below:
https://brainly.com/question/15135554
#SPJ1
given the following table with selected values of f(x) and g(x) evaluate f(g(1))
The value of f(g(1) from the table of functions is given as 1.
What is Functions ?Each element of X receives precisely one element of Y when a function from one set to the other is used. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Initially, functions represented the idealized relationship between two changing quantities.
A function is a procedure or a relation that links each element of a non-empty set A, at least one element of another non-empty set B, to another element of the first non-empty set A. In mathematics, a relation f between two sets, A and B, is referred to as the function's domain and co-domain.
A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a connection between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input.
when x = 1
g(x) = 3
or f(g(1) = f(3) = 1
The value of f(g(1) from the table of functions is given as 1.
To learn more about Functions refer to :
https://brainly.com/question/30169765
#SPJ1
Simplify (3.8 x 10^-2)(5.14 x 10^-10). Write the final answer in scientific notation.
Answer:
1.9532×10⁻¹¹
Step-by-step explanation:
You want the product (3.8 × 10^-2)(5.14 × 10^-10) in scientific notation.
ProductThe product is computed in the usual way, making use of the rules of exponents.
(3.8 × 10^-2)(5.14 × 10^-10) = (3.8×5.14) × (10^-2)(10^-10)
= 19.532 × 10^(-2-10) = 19.532 × 10^-12
Moving a factor of 10 from the coefficient to the exponent gives ...
= 1.9532×10^-11 . . . . . . final answer in scientific notation
__
Additional comment
Scientific notation has 1 digit to the left of the decimal point in the coefficient.
Here, we had to divide by 10 to put the coefficient decimal point in the right place. To keep the number at the same value, we had to increase the exponent of 10 by 1 from -12 to -11.
Your calculator can display the product in scientific notation for you, as can any spreadsheet.
Sometimes it is convenient to adjust the exponents before the multiplication. Here, you can see the product of the coefficients will be greater than 10, so will ultimately need to be divided by 10. One way to get there is rewriting the problem as (0.38×10^-1)(5.14×10^-10). This will give a product coefficient between 1 and 10 with an exponent of -11.
<95141404393>
A scientist claims that 4% of viruses are airborne. If the scientist is accurate, what is the probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%
Answer:
The probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%=0.00427
Step-by-step explanation:
We are given that
\(\mu_{\hat{p}}=p=4%=0.04\)
n=662
We have to find the probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%.
q=1-p=1-0.04=0.96
\(\sigma_{\hat{p}}=\sqrt{p(1-p)/n}\)
\(\sigma_{\hat{p}}=\sqrt{\frac{0.04(1-0.04)}{662}}\)
\(\sigma_{\hat{p}}=0.0076\)
Now,
\(P(\hat{p}>0.06)=1-P(\hat{p}<0.06)\)
\(=1-P(\frac{\hat{p}-\mu_{\hat{p}}}{\sigma_{\hat{p}}}<\frac{0.06-0.04}{0.0076})\)
\(=1-P(Z<2.63)\)
\(=1-0.99573\)
\(P(\hat{p}>0.06)=0.00427\)
Hence, the probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%=0.00427
FIRST ONE TO GET ME THE CORRECT ANSWER WILL WIN BRAINIEST
9514 1404 393
Answer:
59 3/4
Step-by-step explanation:
The change from the opening price is ...
-50 1/2 +110 1/4 = 60 -1/4 = 59 3/4 . . . change from opening price
The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 23.5 for a sample of size 775 and standard deviation 12.2. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 95% confidence level). Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
The 95% confidence interval for the effectiveness of the blood-pressure drug is given as follows:
\(22.6 < \mu < 24.4\)
How to obtain the confidence interval?The mean, the standard deviation and the sample size for this problem, which are the three parameters, are given as follows:
\(\overline{x} = 23.5, \sigma = 12.2, n = 775\)
Looking at the z-table, the critical value for a 95% confidence interval is given as follows:
z = 1.96.
The lower bound of the interval is then given as follows:
\(23.5 - 1.96 \times \frac{12.2}{\sqrt{775}} = 22.6\)
The upper bound of the interval is then given as follows:
\(23.5 + 1.96 \times \frac{12.2}{\sqrt{775}} = 24.4\)
More can be learned about the z-distribution at https://brainly.com/question/25890103
#SPJ1
Order the following numbers from least to greatest.
4.12310562562 4.5 4.23
Answer:
4.12310562562, 4.23, 4.5
The sum of the speeds two trains is 717.6 miles per hour. If the speed of the first train is 6.4 mph faster than that of the second train, find the speeds
of each.
What is the speed of the first train?
Train 1 = x + 6.4
Train 2 = x
(x) + (x + 6.4) = 717.6
2x + 6.4 = 717.6
2x = 711.2
x = 355.6
Train 1 = 355.6 + 6.4 = 362 mph
Train 2 = 355.6 mph
Hope this helps!! :)
Video game: $64.50, 8% markup
Does anyone know how to solve this?
Benny has 72 teddy bears at his toy store. He wants to put them on 8 shelves with
the same number of bears on each shelf. How many teddy bears are on each shelf?
Answer: Answer below
Step-by-step explanation: So you would simply have to divide 8 into 72 which would be 9.
we can verify our answer by doing 9x8 which equals 72.
Answer: 9
Step-by-step explanation:
bears divided by shelves = number of bears per shelf
72 bears divided by 8 shelves= 9 bears per shelf
If a population is
a sample of the population could be
O A. ninth-graders at Peak School; all students at Peak School
B. math teachers; the entire school faculty
O C. people who purchased shoes; all customers
O D. all citizens; registered voters
Answer:
Step-by-step explanation:
D.all citizens; registered voters
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.1 years, and standard deviation of 0.6 years.
If you randomly purchase one item, what is the probability it will last longer than 2 years?
The probability will last longer than 2 years will be 3.3%.
What is probability?Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
First let us calculate the z score using the formula:
\(z = \dfrac{(x- \mu)} { s}\)
where x = 2, u is the mean = 3.1 years, and s is the standard deviation
\(z =\dfrac{ (2 - 3.1) }{ 0.6}\)
z = -1.83
From the standard probability tables, the p-value at z = -1.83 is:
P = 0.033 = 3.3%
Therefore the probability that will last longer than 2 years will be 3.3%.
To know more about probability follow
https://brainly.com/question/24756209
#SPJ1
need help!!!
which pairs of points have a slope of 1/2?
For the question of total area of the cuboid is 200cm^.
I understand where we divide 150 by 4.
But why do I need to multiply by 5, when there are 6 faces.
You need to multiply by 5 instead of 6 because each pair of opposite faces on a cuboid has the same area, so by considering one face from each pair, you ensure that you don't count any face twice.
When calculating the total surface area of a cuboid, you need to understand the concept of face pairs.
A cuboid has six faces, but each face has a pair that is identical in size and shape.
Let's break down the reasoning behind multiplying by 5 instead of 6 in the given scenario.
To find the surface area of a cuboid, you can add up the areas of all its faces.
However, each pair of opposite faces has the same area, so you avoid double-counting by only considering one face from each pair. In this case, you have five pairs of faces:
(1) top and bottom, (2) front and back, (3) left and right, (4) left and back, and (5) right and front.
By multiplying the average area of a pair of faces by 5, you account for all the distinct face pairs.
Essentially, you are considering one face from each pair and then summing their areas.
Since all the pairs have the same area, multiplying the average area by 5 gives you the total surface area.
When dividing 150 by 4 (to find the average area of a pair of faces), you are essentially finding the area of a single face.
Then, by multiplying this average area by 5, you ensure that you account for all five pairs of faces, providing the total surface area of the cuboid.
Thus, multiplying by 5 is necessary to correctly calculate the total surface area of the cuboid by accounting for the face pairs while avoiding double-counting.
For similar question on cuboid.
https://brainly.com/question/29568631
#SPJ8
R is a midpoint on the line segment QS. if QR=12.5 what is QS?
Based on the definition of the midpoint of a line segment, the length of QS is calculated as: 25 units.
What is the Midpoint of a Line Segment?When a point lies on a line segment in such a way that it bisects the line into two equal halves, that point is said to be the midpoint of that line segment.
In the image attached below, on line segment QS, R bisects QS into two equal halves because it is the midpoint of segment QS.
Given that segment QR = 12.5, this means that it is half of the line segment QS.
Therefore:
Length of QR = 12.5
Length of QR = 1/2(length of QS)
Thus:
12.5 = 1/2(length of QS)
Multiply 2 by both sides
2(12.5) = length of QS
25 = length of QS
Length of QS = 25 units.
Learn more about the midpoint of a line segment on:
https://brainly.com/question/896396
#SPJ1
Express 72 as a product of its prime factors
Answer:
okay
Step-by-step explanation:
2^3 times 3^2
Answer:
2^3*9
Step-by-step explanation:
72-9
8-2
4-2
2-2
1
If a number is chosen randomly from the set of numbers {1,2,3,4,..., 17), find the probability of getting a composite number.
=================================================
Explanation:
The set of primes in that given list is {2,3,5,7,11,13,17}
The set of composites is {4,6,8,9,10,12,14,15,16}. So it's basically everything but the prime numbers. We don't include the value 1 in either list since 1 is neither prime nor composite.
Counting the number of items in the list {4,6,8,9,10,12,14,15,16} leads to 9 items. This is out of 17 values total in the original list
The probability of getting a composite value is therefore 9/17
I need help with this problem
20.25 square units are enclosed between the two curves.
How to find area?To find the area enclosed between the two curves, find their intersection points first.
Setting the equations equal to each other:
8x² - x³ + x = x² + 13x
Simplifying and rearranging:
x³ - 7x² - 12x = 0
Factoring out x:
x(x² - 7x - 12) = 0
Solving for x using the quadratic formula:
x = 0, x = 3, x = -4
The two curves intersect at x = 0, x = 3, and x = -4.
Next, determine which curve is on top of the other between these intersection points. We can do this by comparing their y-values for each x:
At x = -4, y = 128
At x = 0, y = 0
At x = 3, y = 27
So, the curve y = 8x² - x³ + x is on top of y = x² + 13x for x in the range -4 ≤ x ≤ 0, and y = x² + 13x is on top of y = 8x² - x³ + x for x in the range 0 ≤ x ≤ 3.
Now find the area between the curves using integration:
∫[from -4 to 0] [(8x² - x³ + x) - (x² + 13x)] dx + ∫[from 0 to 3] [(x² + 13x) - (8x² - x³ + x)] dx
Simplifying:
∫[from -4 to 0] (-x³ + 7x² - 12x) dx + ∫[from 0 to 3] (x³ - 7x² + 12x) dx
Integrating:
[-(1/4)x⁴ + (7/3)x³ - 6x²] from -4 to 0 + [(1/4)x⁴ - (7/3)x³ + 6x²] from 0 to 3
Simplifying:
(64/3) + (81/4) - (27/3) - (64/3) = 20.25
Therefore, the area enclosed between the two curves is 20.25 square units.
Find out more on enclosed region area here:
#SPJ1
Image transcribed:
(1 point) Find the area of the region that is enclosed between y = 8x² - x³ + x and y = x² + 13x.
The area is
Qué significa la luna pesca en el charco
The expression "La luna pesca en el charco". which is equivalent to "The moon fishes in the puddle" and is used to express that an event is not likely to happen.
What is the meaning of this expression?To begin, this expression is not a literal but a figurative expression. Now, the equivalent of this expression in English is "The moon fishes in the puddle". As this is a figurative expression we know that it is impossible for the moon to fish.
Instead, this expression means that something is impossible or not very likely to happen. For example, winning the lottery if you do not buy the lottery.
Note: Here is the question in English:
What is the meaning of the moon fishes in the puddle?
Learn more about figurative language in https://brainly.com/question/17418053
#SPJ1
JTHF monitors offices for tax preparation fee averages, and considers averages greater than $625.00 to be excessive. Offices that consistently charge excessive fees may be subject to which of the following corrective actions? Select one: a. The office will immediately be terminated from the Program. b. The office will be fee capped, which will result in all Financial Product Applications with fees greater than $625.00 to be rejected. c. The office will be fee capped from charging any tax preparation fees. d. None of the above – the office can charge whatever tax preparation fees it wants. Incorrect
The corrective action that offices that consistently charged excessive fees would be subject to by JTFH is a. The office will immediately be terminated from the Program.
What is JTFH ?JTH Financial, LLC (JTHF) is a company that was formed in 2010 in Virginia and their goal and mode of operation is to help customers with tax settlement products that can help them get the best amount to pay for taxes.
JTH Financial, LLC has affiliate offices that engage in tax preparation for clients around the United States but they monitor these offices to ensure that their tax preparation fee averages is not excessive. If an office consistently has excessive fees charged to its customers, then JTH Financial terminates them from the program to protect its customers.
Find out more on tax preparation at https://brainly.com/question/25783927
#SPJ1
4/5×5/6 can you help me
Answer:
2/3
Step-by-step explanation:
4/5*5/6 =2/3
please mark
Answer:
2/3
(Decimal Form : 0.6)
Step-by-step explanation:
Order the following from least to greatest. *
34
- 16 0 - 41
12
Answer:
-41, -16, 0, 12, 34
Step-by-step explanation:
If you look at a number line, negatives are below zero, so that means negatives are lower then zero. The higher the negative, the further from zero, meaning they are even more less
A snail going full speed was taking of a minute to move
centimeter. At this rate, how long would it take the snail to travel a
centimeter?
Answer:
Step-by-step explanation:
if the snail moves 1 cm / 1 min
the snail will need 1 minute, maybe you didn't posted correct?