Answer:
Hi
Step-by-step explanation:
Rational exponent are exponents written in the form of a fraction.
A rational power can be rewritten as a radical in the following way: the bottom of the rational exponent is the root, while the top of the rational exponent is the new exponent on the radical.
Example: X^(1/2)= √X
-4x-2y=-10
3x+y=4
Using substitution
Let get x from the first equation
-4x=+2y-10
x=-1/2y + 5/2
Now substitute the x in the second equation
3(-1/2y+5/2)+y=4
-3/2y + 15/2 + y =4
Move the terms without the y to the other side
-3/2y + y = -15/2 +4
Now multiple both side by 2
-3y +2y = -15+8
-y = -7
Y = 7 (ANSWER)
Now we substitute the y in the first equation so we can get the x
x = -1/2 (7) + 5/2
x = -7/2 + 5/2
x = -2/2
X = -1 (SECOND ANSWER)
Find the volume of the following cube
is it 5 ft , 5ft and 5ft?
if so, the answer would be 125 ft
because, the formula is, side×side×side
and hence, 5×5×5 = 125
please help khan academy
The inequality represented by the graph is given as follows:
y > 3x - 4.
How to define a linear function?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which:
The slope m represents the rate of change.The intercept b represents the value of y when x = 0.The graph crosses the y-axis at y = -4, hence the intercept b is given as follows:
b = -4.
When x increases by 1, y increases by 3, hence the slope m is given as follows:
m = 3.
Hence the equation of the line is:
y = 3x - 4.
The inequality is composed by the values to the right (greater) of the line, and has an open interval due to the dashed line, hence:
y > 3x - 4.
More can be learned about linear functions at https://brainly.com/question/24808124
#SPJ1
PLEASE ANSWER WILL GIVE BRAINLIST
Find the unit rate.
21 grams of fat in 7 servings
According to the video, what should Security Guards be able to do? Select all that apply Act quickly Be resourceful. O Arrest criminals. Be friendly
Answer: A,B
Step-by-step explanation:.........
A party rental company has chairs and tables for rent the total cost to rent a chairs and four tables is $53 the total cost to rent three chairs and two tables is $25 what is the cost to rent each chair and each table
The cost of each chair is $6.2 and the cost of each table is $1.34.
Let's solve this problem by assuming the cost of each chair as ‘c’ and the cost of each table as ‘t.’ We can create two equations from the information given we can obtain the values of ‘c’ and ‘t.’
From the given information, the first equation is ‘c + 4t = 53’ because the cost to rent one chair and four tables is $53. The second equation is ‘3c + 2t = 25’ because the cost to rent three chairs and two tables is $25.
We can solve this by either substitution or elimination, but the method we used earlier works - multiplying the first equation by 3 and subtracting the second equation from it, to obtain:
3c + 12t = 159
- (3c + 2t =25)
------------------
10t = 134
Therefore, the cost of each table is $13.4.
We can plug this value back into equation 1 and solve for c
c + 4(13.4) = 53
c + 53.6 = 53
c = -0.6
This isn't a possible solution as the cost of the chair cannot be negative.
Thus, we need to check if an error was made earlier. We can plug the value of t in the second equation:
3c + 2t = 25
3c + 2(13.4) = 25
3c + 26.8 = 25
This equation is contradictory, indicating that there is no solution. We need to revise the problem statement, a possible typo can be a misplaced decimal point for example, if the cost of each table is instead $1.34, all equations will hold, and the final answer will be:$6.2 and $1.34 respectively according to the question.
This is a possible solution and makes sense.
For such more questions on cost
https://brainly.com/question/2292799
#SPJ8
please help me answer this question thank you
Answer:
A
Step-by-step explanation:
Can someone help me I will make u brilliant
Answer: R'=(6, -2)
S=(-6,9) ==> S'=(6, -9)
T=(-5,9) ==> T'=(5, -9)
U=(-5,2) ==> U'=(5, -2)
Step-by-step explanation:
When rotated around the origin by 180 degrees, the rectangle will have all its coordinates' x and y values negated.
R=(-6, 2) ==> R'=(6, -2)
S=(-6,9) ==> S'=(6, -9)
T=(-5,9) ==> T'=(5, -9)
U=(-5,2) ==> U'=(5, -2)
In an experiment studying the effects of alcohol on social anxiety, alcohol is the ______ variable. A.) independent. B.) confounding. C.) random. D.) dependent.
In an experiment studying the effects of alcohol on social anxiety, alcohol is the dependent variable. So, correct option is option D.
What is Dependent variable ?Variables: The goal of all research is to describe and explain global dispersion. Variance is just the difference. That is, the fluctuations that occur naturally in the world, or the changes that occur as a result of manipulation. A variable is the name given to the variance you want to describe. A variable is the result of a force or is itself a force that changes another variable. There are two types of variables.
DependentIndependentWhen researchers administer an active drug to one group of people and placebo or an inactive drug to another group of people, the independent variable is drug treatment. Each person's response to active drug or placebo is called the dependent variable.
In this case, an experiment examining the effects of alcohol on social anxiety. Alcohol is the dependent variable here.
To learn more about Dependent variable, refer:
https://brainly.com/question/1670595
#SPJ4
Select the correct answer.
A triangle has side lengths of n, n - 3, and 2(n - 2). If the perimeter of the triangle is at least 37 units, what is the value of n?
Answer:
n = 11
Step-by-step explanation:
Perimeter = sum of all the sides
n + n - 3 + 2(n-2) = 37 units
n + n - 3 + 2n - 4 = 37 {Combine like terms}
n + n + 2n - 3 - 4 = 37
4n - 7 = 37
4n= 37 + 7
4n = 44
n = 44/4
n = 11
After a meal, your total bill (before tax) comes to $47.50. If the tax on
your meal is 6%, what is the cost of tax you will have to pay?
6% of 47.50 = 2.85
The tax money is $2.85
this figure shows Circle O with diameter QS.
mRSQ = 307°, what is the measure of ROQ.
Enter answer in the Box?
inverse function of f(x)=3x-2
Step-by-step explanation:
so......im not certain about my solution,but this is what I think
f(x)=3x-2
replace f(x) with the latter Y
so its gonna be...y=3x-2
make x subject of the fomula
so is gonna be...y=3x-2
y-2=3x
x = y-2 3Given A = {10, 11, 12, 13}, B = {10, 12, 14, 16}, and C = {7, 8, 9, 10, 11}, find
A ∪ B
A ∩ B
A ∪ C
A ∩ C
B ∪ C
B ∩ C
The (A ∪ B) ∩ (A ∪ C) ∩ (B ∪ C) ∩ (B ∩ C) ∩ C is an empty set {}.To find the sets A ∪ B, A ∩ B, A ∪ C, A ∩ C, B ∪ C, and B ∩ C, we can perform the following operations:
A ∪ B: The union of sets A and B includes all unique elements from both sets, resulting in {10, 11, 12, 13, 14, 16}.
A ∩ B: The intersection of sets A and B includes only the common elements between the two sets, which are {10, 12}.
A ∪ C: The union of sets A and C combines all unique elements, resulting in {7, 8, 9, 10, 11, 12, 13}.
A ∩ C: The intersection of sets A and C includes only the common elements, which is {10, 11}.
B ∪ C: The union of sets B and C combines all unique elements, resulting in {7, 8, 9, 10, 11, 12, 14, 16}.
B ∩ C: The intersection of sets B and C includes only the common elements, which is an empty set {} since there are no common elements.
Finally, performing the remaining operations:
(A ∪ B) ∩ (A ∪ C): This is the intersection of the union of sets A and B with the union of sets A and C. The result is {10, 11, 12, 13} since these elements are common to both unions.
(B ∪ C) ∩ (B ∩ C): This is the intersection of the union of sets B and C with the intersection of sets B and C. Since the intersection of B and C is an empty set {}, the result is also an empty set {}.
For more such questions on empty set
https://brainly.com/question/1363314
#SPJ8
the perimeter of the gym floor is eighty-eight and six-hundredths meters long. What is this in standard form
Answer:
hope this helps
Step-by-step explanation:
What the property says that 5+13=13+5
Answer: its true
Step-by-step explanation:
i got it right
Answer:
true it is true relly it is
Find the value of x
Answer: x is 13
Step-by-step explanation:
90 - 67 is 23. Then you figure out what times 2 minus 3 is 23. Which would be 13. 13 times 2 is 26 minus 3 is 23. 67 + 23 is 90 ( right triangle)
Answer:
x=13
Step-by-step explanation:
The two angles are complementary, meaning that they both add up to 90°.
So, since we know that one of the angles is 67°, we can find the other one by subtracting 67 from 90.
90-67=23
So the equation is equal to 23.
2x-3=23
Add 3 to both sides.
2x=26
Divide both sides by 2.
x = 13
Suppose that, starting at a certain time, batteries coming off an assembly line are examined one by one to see whether they are defective (let D = defective and N = not defective). The chance experiment terminates as soon as a nondefective bettery is obtained.a. Give five possible outcomes for this chance experiment.b. What can be said about the number of outcomes in the sample space?c. What outcomes are in the event E, that the number of battery examined is an number?
Answer:
a. Possible outcomes for this chance experiment are:
NDNDDNDDDNDDDDN(Here, D means a defective battery, and N means a nondefective battery.)
b. The number of outcomes in the sample space is infinite, as the experiment could potentially continue indefinitely. However, in practice, we can define a maximum number of batteries that could be examined before the experiment is stopped.
c. The event E, that the number of batteries examined is a number, would include outcomes where the experiment stopped at a particular number of batteries. For example, if the experiment stopped after examining three batteries (i.e., the fourth battery was nondefective), then the outcome would be DDDN, and it would be included in event E. However, outcomes where the experiment continued indefinitely (e.g., DDDDD...) would not be included in event E.
A boat can travel 16 miles against a current in the same time it can travel 40 miles with the current. The current flows at 3 mph. What is the rate of the boat in still water?
The rate of the boat when it's still in water is 7mph.
How to calculate the rate?Based on the information, one can denote that the travel times are the same. The formula to calculate the rate will be:
d1/v1 = d2/v2
where
v = rate
d = distance of miles.
This will be:
t = 16/(v - 3) = 40/(v + 3)
Cross multiply
40(v - 3) = 16(v + 3)
40v - 120 = 16v + 48
Collect like terms
40v - 16v = 48 + 120
24v = 168
Divide through by 24
24v/24 = 168/24
v = 7 mph
The rate is 7mph. This shows the concept of the calculation for rate.
Learn more about rate on:
brainly.com/question/25793394
#SPJ1
A) Find an equation for the line perpendicular to the tangent line to the curve y=x^3-4x+6 at the point (2,6)
-The equation is y=
b) What is the smallest slope on the curve? At what point on the curve does the curve have this slope?
-The smallest slope on the curve is
-The curve has the smallest slope at the point
c) Find equations for the tangent lines to the curve at the points where the slope of the curve is 8.
Answer:
f(x) = x³ - 4x + 6
f'(x) = 3x² - 4
a) f'(2) = 3(2²) - 4 = 12 - 4 = 8
6 = 8(2) + b
6 = 16 + b
b = -10
y = 8x - 10
b) 3x² - 4 = 0
3x² = 4, so x = ±2/√3 = ±(2/3)√3
= ±1.1547
f(-(2/3)√3) = 9.0792
f((2/3)√3) = 2.9208
c) 3x² - 4 = 8
3x² = 12
x² = 4, so x = ±2
f(-2) = (-2)³ - 4(-2) + 6 = -8 + 8 + 6 = 6
6 = -2(8) + b
6 = -16 + b
b = 22
y = 8x + 22
f(2) = 6
y = 8x - 10
The equation perpendicular to the tangent is y = -1/8x + 25/4
-The smallest slope on the curve is 2.92
The curve has the smallest slope at the point (1.15, 2.92)
The equations at tangent points are y = 8x + 16 and y = 8x - 16
Finding the equation perpendicular to the tangentFrom the question, we have the following parameters that can be used in our computation:
y = x³ - 4x + 6
Differentiate
So, we have
f'(x) = 3x² - 4
The point is (2, 6)
So, we have
f'(2) = 3(2)² - 4
f'(2) = 8
The slope of the perpendicular line is
Slope = -1/8
So, we have
y = -1/8(x - 2) + 6
y = -1/8x + 25/4
The smallest slope on the curveWe have
f'(x) = 3x² - 4
Set to 0
3x² - 4 = 0
Solve for x
x = √[4/3]
x = 1.15
So, we have
Smallest slope = (√[4/3])³ - 4(√[4/3]) + 6
Smallest slope = 2.92
So, the smallest slope is 2.92 at (1.15, 2.92)
The equation of the tangent lineHere, we set f'(x) to 8
3x² - 4 = 8
Solve for x
x = ±2
Calculate y at x = ±2
y = (-2)³ - 4(-2) + 6 = 6: (-2, 0)
y = (2)³ - 4(2) + 6 = 6: (2, 0)
The equations at these points are
y = 8x + 16
y = 8x - 16
Read more about tangent lines at
https://brainly.com/question/21595470
#SPJ1
6x-12=78 solve the 2 step equation and check the soultion
Answer:
Answer: x is 15
Step-by-step explanation:
\({ \tt{6x - 12 = 78}}\)
» Apply the addition rule of equality by adding 12 on either sides:
\({ \tt{(6x - 12) + { \green{12}} = 78 + { \green{12}}}} \\ { \tt{6x = 90}}\)
» Apply the division rule of equality by dividing either sides by 6
\({ \tt{ \frac{6x}{{ \blue{6}}} = \frac{90}{{ \blue{6}}} }} \\ \\ { \tt{x = \frac{90}{6} }} \\ \\ { \underline{ \tt{ \: \: x = 15 \: \: }}}\)
• Checking the solution :
\({ \tt{6x - 12 = 78}}\)
» Substitute x with its value (15) in the equation:
\({ \tt{6(15) - 12 = 78}} \\ { \tt{90 - 12 = 78}} \\ { \boxed{ \tt{ \: 78 = 78 \: }}}\)
• Since the left hand side is equal to the right hand side, the value of x is consistent.
In a right-angled triangle the ratio of the two smaller angles is 3:2. Find the sizes of each of the angles.
Answer:
36° , 54° , 90°
Step-by-step explanation:
since the triangle is right then one angle is 90°
the ratio of the smaller angles = 3 : 2 = 3x : 2x ( x is a multiplier )
the sum of the 3 angles in the triangle is 180° , that is
3x + 2x + 90 = 180
5x + 90 = 180 ( subtract 90 from both sides )
5x = 90 ( divide both sides by 5 )
x = 18
Then
3x = 3 × 18 = 54°
2x = 2 × 18 = 36°
the 3 angles measure 36° , 54° , 90°
Order from least to greatest.
6/11 , 1.5, 0.545, 1/2
Answer:
1/2 < 0.545 < 6/11 < 1.5
Step-by-step explanation:
I used calculator soup order sorter.
one card is drawn from a pack of 52cards each of the 52 cards being equally likely to be drawn. what is the probability that the card drawn is a king?
The probability of drawing a king from a standard deck of 52 cards is 1/13.
In a standard deck of 52 playing cards, there are four kings: the king of hearts, the king of diamonds, the king of clubs, and the king of spades.
To find the probability of drawing a king, we need to determine the ratio of favorable outcomes (drawing a king) to the total number of possible outcomes (drawing any card from the deck).
The total number of possible outcomes is 52 because there are 52 cards in the deck.
The favorable outcomes, in this case, are the four kings.
Therefore, the probability of drawing a king is given by:
Probability = (Number of favorable outcomes) / (Number of possible outcomes)
= 4 / 52
= 1 / 13
Thus, the probability of drawing a king from a standard deck of 52 cards is 1/13.
This means that out of every 13 cards drawn, on average, one of them will be a king.
It is important to note that the probability of drawing a king remains the same regardless of any previous cards that have been drawn or any other factors.
Each draw is independent, and the probability of drawing a king is constant.
For similar question on probability.
https://brainly.com/question/7965468
#SPJ8
A company’s cereal boxes advertise that each box contains 9.65 ounces of cereal. In fact, the amount of cereal in a randomly selected box follows a Normal distribution with mean μ = 9.70 ounces and standard deviation σ = 0.03 ounce. Now take an SRS of 5 boxes. What is the probability that the mean amount of cereal in these boxes is less than 9.65 ounces?
What is the probability that the mean amount of cereal ¯
in 5 randomly selected boxes is at most 9.65?
The probability that the mean amount of cereal in 5 randomly selected boxes is at most 9.65 ounces is 0.4808.
What is the probability?The Central limit theorem is used to find the probability
Data given:
sample size = 5.
mean, μ = 9.70 ounces
standard deviation, σ = 0.03 ounce.
To calculate the probability, we determine the z-score corresponding to the sample mean of 9.65 ounces using the z-score formula.
z = (x - μ) / (σ / √n)wherex is the sample mean,
μ is the population mean,
σ is the population standard deviation, and
n is the sample size.
For the sample mean of 9.65 ounces in 5 boxes:
z = (9.65 - 9.70) / (0.03 / √5)
z ≈ -0.05 / (0.03 / √5)
Using a calculator, we find that the probability is approximately 0.4801.
Therefore, the probability that the mean amount of cereal in 5 randomly selected boxes is less than 9.65 ounces is approximately 0.4801.
Learn more about probability at: https://brainly.com/question/13604758
#SPJ1
find the product of 5 2/3 and 4 1/2. simplify you answer
Answer:
17/3x9/2=153/6=51/2=25 1/2
Step-by-step explanation:
Answer:
25.5.
Step-by-step explanation:
5 2/3 x 4 1/2 = (5+2/3)x(4+1/2)=((15+2)/3)x((8+1)/2)=(17/3)x(9/2)=153/6=25.5.
Triangle ABC has vertices at A(−3, 3), B(0, 7), and C(−3, 0). Determine the coordinates of the vertices for the image if the preimage is translated 3 units up.
A′(−3, 0), B′(0, 4), C′(−3, −3)
A′(−3, 6), B′(0, 10), C′(−3, 3)
A′(−6, 3), B′(−3, 7), C′(0, 0)
A′(0, 3), B′(3, 5), C′(0, 0)
Answer:
To translate triangle ABC 3 units up, we need to add 3 to the y-coordinate of each vertex:
A' = (-3, 3 + 3) = (-3, 6)
B' = (0, 7 + 3) = (0, 10)
C' = (-3, 0 + 3) = (-3, 3)
Therefore, the coordinates of the vertices for the image triangle A'B'C' are A'(-3, 6), B'(0, 10), and C'(-3, 3).
So the correct answer is: A′(−3, 6), B′(0, 10), C′(−3, 3).
A rectangle has an area of 36 inches. What could the possible dimensions be?
A. l = 5 , w = 2
B. l = 12 , w = 3
C. l = 20 , w = 10
D. l = 9 , w = 9
I have a large family. I have just as many brother as I do sisters. Each of my sisters has only half as many sisters as
brothers. How many brothers and sisters are there in my family all together?
(Thanks!)
Answer:
2 Sisters 3 Brothers
Step-by-step explanation:
Your Welcome :)
what is -1(9)
Ignore theses it said it was too short