Step-by-step explanation:
please mark me as brainlest
Yo can someone help me out
Answer:
theres an black screen
Step-by-step explanation:
mark as brainliest!!
Answer:
Cant see the image
HELPP ME IM TOO SLOW FA DIS
Answer:
75.36 cubic units
Step-by-step explanation:
The volume of a cylinder is \(V=\pi r^{2}h\) where \(V\) is the volume of the cylinder, \(r\) is the radius of the cylinder's base, and \(h\) is the height of the cylinder. This problem requires that we use 3.14 for the constant \(\pi\).
With the given information, this means that the volume of the cylinder is:
\(V=\pi r^{2}h\)
\(V=3.14(2)^{2}(6)\)
\(V=3.14(4)(6)\)
\(V=3.14(24)\)
\(V=75.36\)
Therefore, the volume of the cylinder is 75.36 cubic units
Find all points on the x-axis that are 16 units from the point (4,-8)
Step-by-step explanation:
all points on the x axis have a y value of 0.
so, we need to find all points (x, 0) with a distance of 16 to (4, -8).
the distance to a point is the Hypotenuse of the right-angled triangle with the coordinate differences as legs.
and so Pythagoras applies :
c² = a² + b²
with c being the Hypotenuse (side opposite of the 90° angle).
so, in our case we have
16² = (4-x)² + (-8 - 0)²
256 = 16 - 8x + x² + 64 = x² - 8x + 80
x² - 8x - 176 = 0
if we have no other idea of factorization the general solution of such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = -8
c = -176
x = (8 ± sqrt((-8)² - 4×1×-176))/(2×1) =
= (8 ± sqrt(64 + 704))/2 = (8 ± sqrt(768))/2 =
= (8 ± sqrt(256×3))/2 = (8 ± 16×sqrt(3))/2 =
= 4 ± 8×sqrt(3)
x1 = 4 + 8×sqrt(3) = 17.85640646...
x2 = 4 - 8×sqrt(3) = -9.856406461...
so, the points on the x axis that are 16 units apart from (4, -8) are
(x1, 0) and (x2, 0)
I am not sure in what format you need the answer.
please fill in for x1 and x2 from above what you need.
4.a) A car consumes a gallon of petrol for every 30 km drive. The driver of the car set out on a journey of 420 km with 10 gallons of petrol in the fuel tank. i) How many more gallons of petrol will be needed to complete the journey? ii)find the cost of the petrol for the journey of 420km if a gallon of petrol cost GH¢5.50
i) 4 more gallons of petrol will be needed to complete the journey.
ii) The cost of the petrol for the 420 km journey is GH¢55.00.
i) To determine the number of gallons of petrol needed to complete the journey, we can calculate the total distance that can be covered with the available petrol and then subtract it from the total distance of the journey.
Given that the car consumes 1 gallon of petrol for every 30 km, we can calculate the distance that can be covered with 10 gallons of petrol by multiplying 10 (gallons) by 30 (km/gallon):
Distance covered with 10 gallons = 10 * 30 = 300 km
To find the remaining distance that needs to be covered, we subtract the distance covered with the available petrol from the total distance of the journey:
Remaining distance = Total distance - Distance covered with available petrol
Remaining distance = 420 km - 300 km = 120 km
Since the car consumes 1 gallon of petrol for every 30 km, we can determine the additional gallons of petrol needed by dividing the remaining distance by 30:
Additional gallons needed = Remaining distance / 30 = 120 km / 30 km/gallon = 4 gallons
Therefore, the driver will need 4 more gallons of petrol to complete the journey.
ii) To calculate the cost of the petrol for the journey of 420 km, we need to multiply the total number of gallons used for the journey by the cost per gallon.
Given that a gallon of petrol costs GH¢5.50, and the total number of gallons used for the journey is 10 (given in the problem), we can calculate the cost using the formula:
Cost of petrol = Total gallons used * Cost per gallon
Cost of petrol = 10 gallons * GH¢5.50/gallon = GH¢55.00
Therefore, the cost of the petrol for the journey of 420 km is GH¢55.00.
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The distance around a triangle is 40 centimeters. If two sides are equal and the length of the third side is 10 centimeters, what is the length of each of the other two sides?
Answer:
15 centimeters each = the two other sides of the triangle is 30 cm.
Step-by-step explanation:
A bicycle is traveling at 21 miles per hour. How many feet will it cover in 35 second?
A store is having a sale on jelly beans and almonds. For 5 pounds of jelly beans and 3 pounds of almonds, the total cost is $16. For 2 pounds of jelly beans and 6 pounds of almonds, the total cost is $22. Find the cost for each pound of jelly beans and each pound of almonds.
Answer:
$2/lb
Step-by-step explanation
please help i don’t understand this
The mistake is in the second step, the negative sign must remain there, the correct answer sill be -243.
Where is the mistake in the evaluation?When we have a fractional exponent, we can simplify it as follows:
\(x^{(a/b)} = \sqrt[b]{x^a}\)
Here we start with:
\(-27^{5/3}\)
The first step is correct, just they take the 5 out to geT:
\((-27^{1/3})^5\)
That can be simplified to:
\(\sqrt[3]{-27} ^5\)
And here is the mistake in the image, the outcome of the cube root is -3, the negative sign must remain, then we actualy will get:
\(\sqrt[3]{-27} ^5 = (-3)^5 = -243\)
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The replacement set for an equation is {10, 24, 25, 36}.
The equation is represented by the sentence, "5/6 of a number is 30."
What is the solution set of the equation?
options:
Responses
{10}
{24}
{25}
{36}
ill give brainleist
{25} is the solution set of the equation {10, 24, 25, 36}.
What is an equation?An equation is a combination of different variables, in which two mathematical expressions are equal to each other.
The given set of equation is {10, 24, 25, 36}
Since, The equation is represented by the sentence that is 5/6 of a number is 30.
So the required solution,
5/6 of the number 30 = 25
The solution set of the equation is {25}.
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11.9 A cube has edge lengths that are each 100 centimeters. What is the volume of
the cube?
A
B
1 cubic centimeter
1 cubic meter
100 cubic centimeters
100 cubic meters
The volume of the cube is 1 cubic meter.
Option B is the correct answer.
What is a cube?It is a polygon having six faces.
The volume of a cube is side³.
Example:
The volume of a cube of 3 cm in length is 27 cm³.
We have,
Side length = 100 cm
Now,
Volume.
= Side³
= 100³
= 1000000 cm³ _____(1)
Now,
1 m = 100 cm
1 m³ = 1000000 cm³ _____(2)
From (1) and (2),
Volume = 1 cubic meter.
Thus,
The volume of the cube is 1 cubic meter.
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Which expression is equivalent to 4^7/8
4^1/4?
Please help. I’ll mark you as brainliest if correct!
Answer:
(DNE,DNE)
Step-by-step explanation:
-24x-12y = -16. Equation one
6x +3y = 4. Equation two
Multiplying equation two with +4 gives
4(6x +3y = 4)
24x +12y = 16...result of equation two
-24x -12y= -16...
A careful observation to the following equation will help us notice that the both equation are same thing.
Multiplying minus to equation one gives
-(-24x-12y=-16)
24x+12y = 16.
Since the both equation are same, there is no solution to it.
Simplify by combining like terms.
6.92i – 5.3i
Answer:
1.62i
Step-by-step explanation:
Collect like terms by subtracting their coefficients.
(6.29-5.3) x i
Subtract the numbers.
1.62i
Was this the answer you were looking for?
Damien has an after-school job and a weekend job. • One week he worked 8 hours at his after-school job and 6 hours at his weekend job, earning a total of $118. • The following week he worked 4 hours at his after-school job and 9 hours at his weekend job, earning a total of $119. How much did Damien earn per hour at his after-school job?
Damien earns $7.25 at his after school job.
How to solve linear equations?To find a linear equation's solution is to solve a linear equation. Here, the techniques for solving the three primary forms of linear equations—linear equations with one variable, linear equations with two variables, and linear equations with three variables—are described.
There are six main methods to solve linear equations. Some methods for determining the solution to linear equations are:
Graphical Approach
Substitution Method Elimination Method
Method of Cross Multiplication
Matrix Method \sDeterminants Method
Let us suppose the after-school job = x.
Let us suppose the weekend job = y.
Given that, he worked 8 hours at his after-school job and 6 hours at his weekend job, earning a total of $118.
8x + 6y = 118.........(1)
He worked 4 hours at his after-school job and 9 hours at his weekend job, earning a total of $119.
4x + 9y = 119.........(2)
Multiply the second equation with 2 and subtract equation 1 from it:
8x + 18y = 238
- (8x + 6y = 118)
12y = 120
y = 10
Substitute the value of y in equation 2:
4x + 9(10) = 119
4x + 90 = 119
4x = 29
x = 7.25
Damien earns $7.25 at his after school job.
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You move left 2 units you end at (-5, -1) where did you start?
Answer:
(-3, -1)
Step-by-step explanation:
Moving left 2 units is an example of horizontal translation. This means that the x value will be affected. When it comes to coordinate pairs, 2 left can be represented as -2 because moving left subtracts 2 units from the x-value. However, the question asks what the original coordinate pair is. So, you have to work backward. Thus, instead of subtracting 2, add 2 to find the starting place.
So, the final answer is (-3, -1) because -5 + 2 is -3. We can prove this is the correct answer because (-3, -1) shifted 2 left is (-5, -1).
Which of the following ordered pairs is either the
x- or y-intercept of the function 3x + 2y = -6?
A. (-3,0)
B.(-2,0)
C.(0,2)
D.(0,3)
QUÉ ES EL BASTA NUMÉRICO
Answer:
relating to or expressed as a number or numbers.
Step-by-step explanation:
Explain how to get the variable alone in the equation.
3x = 18
Answer: Divide each term in 3 x = 18 by 3 and simplify. x = 6
Step-by-step explanation:
What % of people surveyed
were 6-10 and 21-25 years old
Add total people:
5 + 20 + 40 + 30 + 20 = 115 people
Add people 6-10 to 21-25 = 20 + 20 = 40
Divide the two age ranges by total people:
40/115 = 0.34782609
Multiply by 100 to get percent:
0.34782609 x 100 = 34.782609% Round off as needed
Carleigh, Inc., is a pork processor. Its plants, located in the Midwest, produce several products from a common process: sirloin roasts, chops, spare ribs, and the residual. The roasts, chops, and spare ribs are packaged, branded, and sold to supermarkets. The residual consists of organ meats and leftover pieces that are sold to sausage and hot dog processors. The joint costs for a typical week are as follows: Direct materials $84,500 Direct labor 29,000 Overhead 20,000 The revenues from each product are as follows: sirloin roasts, $68,000; chops, $71,000; spare ribs, $33,000; and residual, $9,800. Carleigh’s management has learned that certain organ meats are a prized delicacy in Asia. They are considering separating those from the residual and selling them abroad for $52,000. This would bring the value of the residual down to $2,650. In addition, the organ meats would need to be packaged and then air freighted to Asia. Further processing cost per week is estimated to be $27,500 (the cost of renting additional packaging equipment, purchasing materials, and hiring additional direct labor). Transportation cost would be $12,100 per week. Finally, resource spending would need to be expanded for other activities as well (purchasing, receiving, and internal shipping). The increase in resource spending for these activities is estimated to be $3,120 per week.
Carleigh, Inc. should separate the organ meats from the residual and sell them abroad, as it would increase their total revenue by $17,150 per week.
To determine whether Carleigh, Inc. should separate the organ meats and sell them abroad, we need to calculate the incremental revenue and incremental costs associated with this decision.
The incremental revenue would be the revenue generated from selling the organ meats abroad, which is $52,000 per week. The incremental cost would include the cost of further processing ($27,500 per week), transportation cost ($12,100 per week), and the increase in resource spending for other activities ($3,120 per week).
Therefore, the incremental cost would be $42,720 per week. Subtracting this from the incremental revenue of $52,000, we get an incremental profit of $9,280 per week.
However, this decision would also decrease the value of the residual from $9,800 to $2,650 per week. Therefore, we need to subtract this decrease in value from the incremental profit. This gives us a net increase in profit of $17,150 per week ($9,280 - $7,130).
Thus, it would be beneficial for Carleigh, Inc. to separate the organ meats and sell them abroad.
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Calculate the value of x
Step-by-step explanation:
5x = 360-140
5x= 220
x= 220/5
x= 44°
Answer:
x = 44
Step-by-step explanation:
All the angles on a point add up to 360°. Thus:
2x + 3x + 140 = 360
You can merge the x together and simplify the equation.
5x + 140 = 360
Isolate the 5x.
5x = 360 - 140
= 220
Now we can find x.
x = 220 ÷ 5
= 44
9. (a) (b) (c) (d) (e) Bako is twice as old as he was five years ago. His mother was then six times as old as he was. She is now 35 years old. How old is Bako? 10 How old was his mother when Bako was five? How old will Bako be when his mother is 50? How old was Bako's mother when he was born? What is the difference between Bako's age and his mother's?
Answer:
(a) Bako is 10 years old
(b) His mother was 30 years old when Bako was 5
(c) Bako will be 25 years old when his mother is 50
(d) Bako's mother was 25 years old when he was born
(e) The difference between Bako's age & his mother's is 25 years
Step-by-step explanation:
Let Bako's age five years ago be x years
Presently, Bako is 2x years old (according to the 1st statement)
Normal, Bako's present age should have been (x + 5) years; since he was x years old 5 years ago.
This simply means that Bako's present age is BOTH 2x years & (x + 5) years.
We have to equate them since they mean the same thing (Bako's present age)
x + 5 = 2x
2x - x = 5
Therefore x = 5 years
Remember that x signified Bako's age five years ago... This simply means that Bako's age five years ago was 5 years.
This simply means that Bako's age now is 10 years old.
His mother was then six times 5 years = 30 years old (from the 2nd statement).
If Bako was 5 years old five years ago and his mother was 30 years old... It simply means that Bako was born ten years ago when his mother was 25 years old.
This simply means that Bako's mother is older than him with 25 years.
Therefore, Bako will be 25 years old when his mother is 50 years old
Suppose you have a sample of 35 children with antisocial tendencies and you are particularly interested in the emotion of surprise. You find that while the average 10 year old has a score of 13.10 on the emotion recognition scale, your sample of 10 year old children with antisocial tendencies has an average score of 14.35 with a standard deviation of 4.63. A higher score represents that it took a higher degree of emotional expression for the child to correctly identify the emotion of surprise, indicating greater difficulty recognizing the emotion. Assume that scores on the emotion recognition scale are normally distributed.
The null hypothesis is that your sample of children with antisocial tendencies would have no more difficulty recognizing emotion than the general population of 10-year olds. Stated using symbols:_________________
(a). this is a ______
(b) tailed test. Given what you know, you will evalute this hypothesis using a _____
(c) statistic.In order to use the t distribution, you will first need to determine the degrees of freedom
(df) for alpha=.05. The degrees of freedom is: _____
(d). The critical value of t is:_____
(e) Calculate the t statistics. To do this, you will first have to calculate the estimated standard error. The estimated standard error is ____
(f). The t statistic is _____
(g). (Hint: for the most precise results, retain four significant figures from your calculation of the standard error to calculate the t statistic.)
The t statistic ______
(h) lie in the critical region. Therefore, you ____
(i) reject the null hypothesis.
Based on the results of this test, there ____
(j) enough evidence to conclude that children with antisocial tendencies have greater difficulty recognizing surprise than do children without antisocial tendencies:
Options for b: two- or one-
Options for c: z or t
Options for d: 33, 34, 35, 36
Options for e: .549, 2.032, 1.691, 1.645
Options for f: 0.38, 4.63, 0.78, 35
Options for g: 2.45, 1.60, 3.19, 3.30
Options for h: does not OR does
Options for i: cannot OR can
Options for j: is OR is not
Answer and explanation:
Please find explanation attached
Suppose that diameters of a new species of apple have a bell-shaped distribution with a mean of 7.43cm and a standard deviation of 0.35cm. Using the empirical rule, what percentage of the apples have diameters that are between 7.08cm and 7.78cm
Answer:
Approximately 68% of the apples have diameters that are between 7.08cm and 7.78cm.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean of 7.43cm, standard deviation of 0.35cm.
What percentage of the apples have diameters that are between 7.08cm and 7.78cm?
7.43 - 0.35 = 7.08 cm.
7.43 + 0.35 = 7.778 cm.
Within 1 standard deviation of the mean, so approximately 68% of the apples have diameters that are between 7.08cm and 7.78cm.
Which ordered pair solves this linear system?
Y= -x
Y= 2x
The ordered pair that solves the system of equation is (0, 0).
To solve this system, we can substitute the first equation into the second equation to eliminate y:
x = 2x
Solving for x, we get x = 0.
Substituting x = 0 into the first equation, we get y = 0.
Therefore, the ordered pair that solves the system is (0, 0).
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does anybody have a nose pierced because if so can you ever remove it and take a break from wearing it cause i was told you couldn’t ever do that?
Answer Asap
Answer:
yes u can only if the hole was made befor 3 months or more.
.
.
.
Factor quadratic plz 15x^2-4x-4=
Answer:
x = 2/3 or x = -2/5
Step-by-step explanation:
15x^2 - 4x - 4 = ?
factor the left side of the expression and set factors equal to zero:
(3x-2)(5x+2)=0
3x - 2 =0 or 5x + 2 =0
3x =2 or 5x = -2
x = 2/3 or x = -2/5
Will mark brainliest! Can someone help me with these 2 questions? Please also show the work
Answer:
a) \(153^{\frac{1}{4} }\)
b) \(2x^{\frac{5}{3} }y^{\frac{7}{3} }\)
A radical sign can be rewritten as an exponent of 1/n, where n is the number next to the radical sign, or two if no number is present.
Hope it helps :)
Solve the system of equations.
12x-5y = -20
y =x+4
Answer:
1. 12x-5y = -20 Answer: 2(picture)
2. y =x+4 Answer: 1(picture)
Step-by-step explanation: Hope this help :D
Please help as soon as you can! Which of the following inequalities matches the graph?
(A) x> 4
(B) x< 4
(C) y > 4
(D) y < 4
Answer:
i believe the answer is B