Answer:0.0009
Step-by-step explanation:
Answer:
1/6+−2/9=−1/18
Step-by-step explanation:
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(16×33)+(−29×22)=?
Complete the multiplication and the equation becomes
318+−418=?
The two fractions now have like denominators so you can add the numerators.
Then:
3+−418=−118
This fraction cannot be reduced.
Therefore:
16+−29=−118
A chemist has three acid solutions. The first solution contains 15% acid, the second contains 35% and the third contains 65%. He wants to use all three solutions to obtain a mixture of 228 liters containing 25% acid, using 2 times as much of the 65% solution as the 35% solution. How many liters of each solution should be used?
The chemist should use 86.13 liters of the 15% solution,
47.29 liters of the 35% solution,
94.58 liters of the 65% solution to obtain a mixture of 228 liters containing 25% acid, using 2 times as much of the 65% solution as the 35% solution.
How to solve Percentage problems?To solve this problem, we need to find how many liters of each solution should be used to obtain a mixture of 228 liters containing 25% acid, using 2 times as much of the 65% solution as the 35% solution. Here's how we can approach the problem:
Let's assume that we need to use x liters of the 15% solution, y liters of the 35% solution, and z liters of the 65% solution.
From the problem statement, we know that:
x + y + z = 228 (since we need a total of 228 liters of the mixture)
z = 2y (since we need to use 2 times as much of the 65% solution as the 35% solution)
0.15x + 0.35y + 0.65z = 0.25(228) (since we need the final mixture to contain 25% acid)
We can use these equations to solve for x, y, and z. Here's how:
Substitute z = 2y into the first equation to get x + y + 2y = 228, which simplifies to x + 3y = 228.
Rearrange this equation to get x = 228 - 3y.
Substitute z = 2y into the second equation to get 0.15x + 0.35y + 0.65(2y) = 0.25(228), which simplifies to 0.15x + 1.15y = 74.4.
Substitute x = 228 - 3y into this equation to get 0.15(228 - 3y) + 1.15y = 74.4, which simplifies to 34.2 - 0.3y = 74.4 - 1.15y.
Rearrange this equation to get 0.85y = 40.2, which simplifies to y = 47.29.
Substitute y = 47.29 into z = 2y to get z = 94.58.
Substitute y = 47.29 and z = 94.58 into x + 3y = 228 to get x = 86.13.
Therefore, the chemist should use 86.13 liters of the 15% solution, 47.29 liters of the 35% solution, and 94.58 liters of the 65% solution to obtain a mixture of 228 liters containing 25% acid, using 2 times as much of the 65% solution as the 35% solution.
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An 8-foot ramp needs to be elevated at an angle measuring 10° to be level with a step. Approximately how far
does the ramp need to be away to hit the edge of the step?
Answer:
Approximately 7.9 feet.
Step-by-step explanation:
cos 10 = x / 8 where x is the required distance.
x = 8 cos 10
= 7.878 feet.
A new iPhone 11 is $699.00. It is on sale for 15 percent of. What is the sale price
594.15
Step-by-step explanation:
To find the sale price of the iPhone 11, we first calculate the amount of discount which comes to $104.85 and subtract this from the original price. The sale price of the iPhone 11 is therefore $594.15.
Explanation:The question is about computing the sale price of an iPhone 11 which originally costs $699.00, given that a discount of 15 percent is provided. In mathematical terms, you would be required to find 15% of $699.00 and subtract that amount from the original price to get the sale price.
So, first, determine the amount of discount: 15 / 100 * $699.00 = $104.85. Next, subtract this discount from the original price: $699.00 - $104.85 = $594.15. So, the sale price of the iPhone 11 would be $594.15.
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For what value of x does 64^3x =512^2x+12
Answer:
step by step explanation:64^3x=512^2x+12
64^3x-512^2x=12
2^18x-2^18x=12
0=12
There is no solution for x in the given quadratic equation.
What is a quadratic equation?The equation which is of 2nd degree is known as quadratic equation.
Example: ax^2 + bx + c = 0 (quadratic equation)
Here a, b, c are known quantities and x is variable.
Here a can't be 0.
The equation given in the question is:
64^3x =512^2x+12
(8^2)^3x = (8^3)^2x + 12
(8)^6x = (8)^6x + 12
There is no value of x, which will satisfy the equation hence it has no solution.
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-12(k+4)= 60 what is the answer
Answer:
k is -1
Step-by-step explanation:
-12(k+4) = 60
-12k-48=60
-12k=12
k=-1
Answer:
k= -9
Step-by-step explanation:
[tex] - 12(k + 4) = 60 \\ - 12k + - 48 = 60 \\ - 12k = 108 \\ k = - 9[/tex]
what is 10/11+1/4= i need the answer
Answer:
51/44 OR 1 7/44
Step-by-step explanation:
In adding fractions with unlike denominators, you have to find a common factor. In this case, I'll choose 44 because 11 times 4 is 44. So, whatever you do to the bottom must be done to the top as well. 11 times 4 is 44, so 10 times 4 is 40. The new fraction is 40/44. We'll do the same for the other fraction. 4 times 11 is 44, so 1 times 11 is 11. The new fraction is 11/44. Now we can add since we have common factors. 40/44 plus 11/44 is 51/44, which can be simplified to 1 7/44.
A racing committee wants to lay out a triangular course with a 40 degree angle between the two sides of 3.5 miles and 2.5 miles. What will be the length of the third side?
Answer:
6.83 miles
Step-by-step explanation:
The length of the third side is approximately: [tex]\[\boxed{2.256 \, \text{miles}}\][/tex]
To find the length of the third side of a triangular course with a given angle between two sides, we can use the Law of Cosines.
[tex]\[c^2 = a^2 + b^2 - 2ab \cos(\gamma)\][/tex]
We want to find the length of the third side c
First, we need to plug in the values into the Law of Cosines formula:
[tex]\[c^2 = (3.5)^2 + (2.5)^2 - 2 \cdot 3.5 \cdot 2.5 \cdot \cos(40^\circ)\][/tex]
Calculate each term:
[tex]\[(3.5)^2 = 12.25\][/tex]
[tex]\[(2.5)^2 = 6.25\][/tex]
[tex]\[2 \cdot 3.5 \cdot 2.5 = 17.5\][/tex]
Using a calculator, we find:
[tex]\[\cos(40^\circ) \approx 0.7660\][/tex]
Substitute all the values into the equation:
[tex]\[c^2 = 12.25 + 6.25 - 17.5 \cdot 0.7660\][/tex]
[tex]\[c^2 = 18.5 - 13.405\][/tex]
[tex]\[c^2 = 5.095\][/tex]
Finally, take the square root of both sides to find c
[tex]\[c = \sqrt{5.095} \approx 2.256\][/tex]
Therefore, the length of the third side is approximately:
[tex]\[\boxed{2.256 \, \text{miles}}\][/tex]
what is the sum of 3.14and 4.83
To find the sum of 3.14 and 4.83, simply add the two numbers together: 3.14 + 4.83 equals 7.97.
Explanation:The sum of 3.14 and 4.83 can be calculated by performing a simple addition of the two numbers:
3.14
+ 4.83
-------
7.97
So, the sum of 3.14 and 4.83 is 7.97.
At Ned's Newsstand, 4 magazines cost $12.00.
How many magazines could you buy with
$36.00?
Answer:
12 magazines
Step-by-step explanation:
cost over magazines
12.00 = 36.00
4 ?
12*3=36 whatever you do to the numerator you do it to the denominator
4*3=12
12 magazines
and im correct so gmany you better not delete my answer
Answer:
12 magazines
Step-by-step explanation:
12 (1/4) = 3
36 (1/3) = 12
Can someone solve and show work possibly?
Number of adult tickets sold = 17
Number of student tickets sold =32
Number of senior citizen tickets sold = 51
Solution:Given that a certain school sells:
adult tickets = $ 8 ; student tickets = $ 5 and senior citizen tickets = $ 6
Let the number of adult tickets sold be "a"
Let the number of student tickets sold be "b"
Let the number of senior citizen tickets sold be "c"
For one game 100 tickets were sold for $ 600
Number of adult tickets sold + number of student tickets sold + number of senior citizen tickets sold = 100
a + b + c = 100 ------ eqn 1
Number of adult tickets sold x price of one adult ticket + number of student tickets sold x price of one student tickets + number of senior citizen tickets sold x price of one senior citizen tickets = 600
8a + 5b + 6c = 600 ----- eqn 2
There are 3 times as many adult tickets sold as senior citizen tickets
Hence we get,
3a = c -------- eqn 3
Put eqn 3 in eqn 1 we get,
a + b + 3a = 100
4a + b = 100
b = 100 - 4a ----- eqn 4
Substitute eqn 3 and eqn 4 in eqn 2, we get
8a + 5(100 - 4a) + 6(3a) = 600
8a + 500 - 20a + 18a = 600
6a = 600 - 500
a = 16.67 that is approximately 17
a = 17
Substitute a = 17 in eqn 3,
3(17) = c
c = 51
Substitute a = 17 in eqn 4,
b = 100 - 4(17) = 100 - 68 = 32
b = 32
Thus we get:
number of adult tickets sold = a = 17
number of student tickets sold = b = 32
number of senior citizen tickets sold = c = 51
When Kaitlin divided a fraction by 1/2 the result was a mixed number. Was the original fraction less than or greater than 1/2. ? Complete the answer and explanation of the reasoning. The original fraction was -------- than 1/2 . Since the ---------- was a mixed number , the original fraction must have contained -------- than 1 unit of 1/2
Answer:
The original fraction was less than 1/2. Since the result was a mixed number, the original fraction must have contained less than 1 unit of 1/2.
Step-by-step explanation:
The fraction will be less than 1/2. An example will be 1/2 divided by 1/3. You'll need to do 1/2 x 3/1, which will result in 3/2, or 1 1/2.
The original fraction was greater than 1/2. Dividing by 1/2 is the same as doubling, so for the result to be a mixed number, the original fraction must have exceeded 1/2.
Explanation:The original fraction was greater than 1/2. Since the result was a mixed number, the original fraction must have contained more than 1 unit of 1/2.
This is because when you divide a fraction by 1/2, you are essentially doubling that fraction. If the original fraction were less than or equal to 1/2, doubling it would still result in a fraction that is less than or equal to 1 (not a mixed number). Therefore, in order for the result to be a mixed number, the original fraction must have been more than 1/2. For example, if the original fraction was 3/4 (which is greater than 1/2), when divided by 1/2, the result would be 1 1/2, a mixed number.
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The probability that Aaron goes to the gym on Saturday is 0.8
If Aaron goes to the gym on Saturday the probability that he goes on Sunday is 0.3.
if Aaron does not go to the gym on Saturday the probability he goes on Sunday is 0.9.
Calculate the probability the Aaron goes to the gym on exactly one of the two days.
Answer:
The probability that Aaron goes to the gym on exactly one of the two days is 0.74
Step-by-step explanation:
Let P(Aaron goes to the gym on exactly one of the two days) be the probability that Aaron goes to the gym on exactly one of the two days.
Then
P(Aaron goes to the gym on exactly one of the two days) =
P(Aaron goes to the gym on Saturday and doesn't go on Sunday) +
P(Aaron doesn't go to the gym on Saturday and goes on Sunday)
If Aaron goes to the gym on Saturday the probability that he goes on Sunday is 0.3. Then If Aaron goes to the gym on Saturday the probability that he does not go on Sunday is 1-0.3 =0.7Since the probability that Aaron goes to the gym on Saturday is 0.8,P(Aaron goes to the gym on Saturday and doesn't go on Sunday) =
P(the probability that Aaron goes to the gym on Saturday)×P(If Aaron goes to the gym on Saturday the probability that he does not go on Sunday)
=0.8×0.7=0.56
The probability that Aaron doesn't go to the gym on Saturday is 1-0.8=0.2And if Aaron does not go to the gym on Saturday the probability he goes on Sunday is 0.9.Thus, P(Aaron doesn't go to the gym on Saturday and goes on Sunday) = P(The probability that Aaron doesn't go to the gym on Saturday)×P(if Aaron does not go to the gym on Saturday the probability he goes on Sunday)
=0.2×0.9=0.18
Then
P(Aaron goes to the gym on exactly one of the two days) =0.56 + 0.18 =0.74
Answer:
0.74
Step-by-step explanation:
i just did it now on my maths-watch homework
A line through the points $(2, -9)$ and $(j, 17)$ is parallel to the line $2x + 3y = 21$. What is the value of $j$?
Answer:
j=-37
Step-by-step explanation:
step 1
Find the slope of the given line
we have
[tex]2x+3y=21[/tex]
Convert to slope intercept form
Isolate the variable y
subtract 2x both sides
[tex]3y=-2x+21[/tex]
divide by 3 both sides
[tex]y=-\frac{2}{3}x+7[/tex]
The slope is
[tex]m=-\frac{2}{3}[/tex]
step 2
we have the points
(2,-9) and (j,17)
Find the slope
The formula to calculate the slope between two points is equal to
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
substitute
[tex]m=\frac{17+9}{j-2}[/tex]
[tex]m=\frac{26}{j-2}[/tex]
Remember that
If two lines are parallel then their slope are equal
therefore
[tex]\frac{26}{j-2}=-\frac{2}{3}[/tex]
[tex]26(3)=-2(j-2)\\78=-2j+4\\2j=4-78\\2j=-74\\j=-37[/tex]
is 1/3 a rational number
Answer:
Yes 1/3 is a rational number.
Explanation:
in mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Hence, 1/3 is a rational number.
Answer:
Yes, it is a rational number.
Step-by-step explanation:
A rational number is any number that can be expressed as a ratio of integers. Even a fraction in which both the numerators and denominators are both integers but the denominator can never ever be less than 0.
I hope this helped you!
11 halves divided by 7
Answer:
[tex]\large\boxed{\dfrac{11}{14}}[/tex]
Step-by-step explanation:
[tex]\dfrac{\frac{11}{2}}{7}=\dfrac{11}{2}\div7=\dfrac{11}{2}\div\dfrac{7}{1}=\dfrac{11}{2}\cdot\dfrac{1}{7}=\dfrac{(11)(1)}{(2)(7)}=\dfrac{11}{14}[/tex]
Answer:
PLEASE MARK BRAINLIEST!Step-by-step explanation:
[tex]\frac{\frac{11}{2}}{7} = \frac{11}{14}[/tex]
[tex]\frac{11}{14} = 0.7857142...[/tex]
I hope this helps!
13.
372 Test 3-2 2019.doc
A manufacturer uses 800 pounds of steel to manufacture 250 steel pots. At this rate how many
pounds of steel are needed to make 1 pot?
It takes 3.2 pounds of steel to make one pot.
Step-by-step explanation:
Given,
It takes 800 pounds to manufacture 250 steel pots, therefore,
250 pots = 800 pounds
For calculating steel used for making one pot,
1 steel pot = [tex]\frac{800}{250}[/tex]
[tex]1\ steel\ pot=3.2\ pounds[/tex]
It takes 3.2 pounds of steel to make one pot.
Keywords: division, unit rate
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Find the distance from point A(0,5) to y=-3x — 5
Answer:
Distance from point A(0,5) to y = -3 x - 5 is √10 units units.
Step-by-step explanation:
Here, the given line equation is y = -3x -5
Also, the point A (0,5) is the given point.
Now, a distance of a point (m,n) from a line Ax + By + c = 0 is given as:
[tex]d = \frac{\mid Am +bn+c \mid}{\sqrt{A^2 + B^2} }[/tex]
Here, the equation is y = -3 x -5
⇒ 3 x + y + 5 = 0 , here A = 3, B = 1
Now, the value of line equation at (0,5) is 3(0) + 5 + 5 = 10
So, from the given distance formula, we get:
[tex]d = \frac{\mid Am +bn+c \mid}{\sqrt{A^2 + B^2} } = d = \frac{10}{\sqrt{(3)^2 + (1)^2} } = \frac{10}{\sqrt{(10)}} = \sqrt{(10)}[/tex]
⇒ d = √10 units
Hence, distance from point A(0,5) to y = -3 x - 5 is √10 units units.
To find the distance from point A(0,5) to the line y=-3x-5, we can use the distance formula.
Explanation:To find the distance from point A(0,5) to the line y=-3x-5, we can use the distance formula.
The distance formula is given by:
d = √((x2 - x1)² + (y2 - y1)²)
In this case, point A is (0,5) and the line is y = -3x - 5.
So, we can substitute the values into the formula:
d = √((x - 0)² + (y - 5)²)
d = √(x² + (y - 5)²)
To find the distance, we need to substitute the x and y values of a point on the line into the formula and solve for d.
Let's take the point (1, -8) as an example:
d = √((1)² + (-8 - 5)²)
d = √(1 + 169)
d = √170
So, the distance from point A(0,5) to the line y=-3x-5 is √170.
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Which graphs show continuous data?
Select each correct answer
Disance Walked
Distance Walked
The second graph, on the right side is a straight line without any gap or break so it is a graph of continuous data.
Step-by-step explanation:
A continuous data s the type of data which contains real values also. the continuous data is measured.
The graph of a continuous data is a continuous line without any breaks. The graph starts and ends only on one note. Not having any breaks or gaps.
In the given diagram, we can observe the both graphs.
The first graph is a scatter plot which only shows points on the graph. It is graph of some discrete data.
The second graph, on the right side is a straight line without any gap or break so it is a graph of continuous data.
Keywords: Discrete data, continuous data
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Complete each equation below so that it shows equivalent fractions.
Clear Check
3
=
4
12
1
2
=
3
2
=
4
To find equivalent fractions, multiply the numerator and denominator of a given fraction by the same number to achieve the desired denominator. For example, 3/4 becomes 9/12 and 1/2 becomes 3/6 when transformed to have denominators of 12 and 3 respectively.
Explanation:To solve the question of completing each equation so that it shows equivalent fractions, we will use the concept of multiplying the numerator and denominator of a fraction by the same number to find an equivalent.
Examples:For the fraction 3/4, to find its equivalent with a denominator of 12, we would multiply both the numerator and denominator by 3, because 4 times 3 equals 12. Thus, we get the equivalent fraction: 3/4 = 9/12.
To find an equivalent fraction for 1/2 with a denominator of 3, we multiply both the numerator and denominator by 3/6 because 2 times 3 equals 6. The equivalent fraction is 1/2 = 3/6.
If we need an equivalent for 2/1 with a denominator of 4, we multiply both the numerator and denominator by 4 because the common denominator we are aiming for is 4. The equivalent fraction is then 2/1 = 8/4.
Note that we always ensure the multiplication factor makes the denominators equal, since that is the requirement for fractions to be equivalent.
The equivalent fractions are:
1. [tex]\( \frac{1}{4} = \frac{3}{12} \)[/tex]
2. [tex]\( \frac{4}{5} = \frac{8}{10} \)[/tex]
3. [tex]\( \frac{1}{6} = \frac{2}{12} \)[/tex]
To complete each equation and show equivalent fractions, we need to find the missing numerator or denominator that, when filled in, will make the fractions equivalent.
1. [tex]\( \frac{1}{4} = \frac{3}{12} \)[/tex]
Explanation: To find an equivalent fraction for [tex]\( \frac{1}{4} \)[/tex] with a denominator of 12, we notice that we can get from 4 to 12 by multiplying 4 by 3 (4 * 3 = 12). So, to make the fractions equivalent, we also multiply the numerator by 3 (1 * 3 = 3). This gives us [tex]\( \frac{3}{12} \)[/tex], which is equivalent to [tex]\( \frac{1}{4} \)[/tex].
2. [tex]\( \frac{4}{5} = \frac{8}{10} \)[/tex]
Explanation: To find an equivalent fraction for [tex]\( \frac{4}{5} \)[/tex] with a denominator of 10, we notice that we can get from 5 to 10 by multiplying 5 by 2 (5 * 2 = 10). So, to make the fractions equivalent, we also multiply the numerator by 2 (4 * 2 = 8). This gives us [tex]\( \frac{8}{10} \)[/tex], which is equivalent to [tex]\( \frac{4}{5} \)[/tex].
3. [tex]\( \frac{1}{6} = \frac{2}{12} \)[/tex]
Explanation: To find an equivalent fraction for [tex]\( \frac{1}{6} \)[/tex], we want the denominator to be 12. To do this, we notice that we can get from 6 to 12 by multiplying 6 by 2 (6 * 2 = 12). So, to make the fractions equivalent, we also multiply the numerator by 2 (1 * 2 = 2). This gives us [tex]\( \frac{2}{12} \)[/tex], which is equivalent to [tex]\( \frac{1}{6} \)[/tex].
The complete question is given below:
Complete each equation below so that it shows equivalent fractions.
1/4 = __/12
4/5 = __/10
1/6 = __/__
Madison has reserved x hours this week for activities. He uses 1/4 of his hours for basketball. He uses 1/3 of his hours to practice playing his saxophone. Write an expression to show how much time he has left for other activities.
Answer:
Time left for Madison for other activities is [tex]\frac{5x}{12}[/tex] h .
Step-by-step explanation:
Given as :
The time reserved by Madison for activities = x hours
The time uses for basketball = [tex]\frac{1}{4}[/tex] of x = [tex]\frac{x}{4}[/tex] h
The time uses for playing saxophone = [tex]\frac{1}{3}[/tex] of x = [tex]\frac{x}{3}[/tex] h
So , The total time used by him = [tex]\frac{x}{4}[/tex] h + [tex]\frac{x}{3}[/tex] h
I.e The total time used by him = [tex]\frac{7x}{12}[/tex] h
Now, The time left for other activities = x h - [tex]\frac{7x}{12}[/tex] h
I.e The time left for other activities = [tex]\frac{12x - 7x}{12}[/tex] h
or, The time left for other activities = [tex]\frac{5x}{12}[/tex] h
Hence Time left for Madison for other activities is [tex]\frac{5x}{12}[/tex] h . Answer
What is the diameter of the circle?
12 inches
А)
6 inches
B
24 inches
C
26 inches
48 inches
Answer:
The diameter of the circle is B) 24 inches.
Step-by-step explanation:
The value given (12 inches) is the radius of the circle. The diameter of a circle is equal to 2 * radius. 2 * 12 = 24.
The diameter of the circle is 24 inches.
Option B is the correct answer.
We have,
The diameter of a circle is a line segment that passes through the center of the circle and connects two points on its circumference.
It is the longest chord of the circle and divides the circle into two equal halves.
The diameter is commonly denoted by the symbol "d" and is related to the radius of the circle (denoted by "r") by the equation:
d = 2r
Now,
r = 12 inches
So,
d = 2r = 2 x 12 inches
d = 24 inches
d = 24 inches
Thus,
The diameter of the circle is 24 inches.
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NEED HELP ASAP!!!
thank you.
Answer:
See explanation
Step-by-step explanation:
Consider triangles ACM and BCM. In these triangles,
[tex]m\angle 3=m\angle 4[/tex] - given;[tex]m\angle 1=m\angle 2=90^{\circ}[/tex] - definition of perpendicular lines CM and AB;[tex]\overline{CM}\cong \overline{CM}[/tex] - reflexive property.So,
[tex]\triangle ACM\cong \triangle BCM[/tex] by ASA postulate (if one side and two angles adjacent to this side of one triangle are congruent to one side and two angles adjacent to this side of another triangle, then two triangles are congruent).
Two-column proof:
Statement Reason
1. [tex]m\angle 3=m\angle 4[/tex] Given
2. [tex]CM\perp AB[/tex] Given
3. [tex]m\angle 1=m\angle 2=90^{\circ}[/tex] Definition of perpendicular lines CM and AB
4. [tex]\overline{CM}\cong \overline{CM}[/tex] Reflexive property
5. [tex]\triangle ACM\cong \triangle BCM[/tex] ASA postulate
Can I get some help on this please? This is part 1 I will post part 2 later.
Thanks! Will mark Brainliest!
Answer:
-2/3 (fixed it)
Step-by-step explanation:
Please help me people who use khan academy will understand
the answer is 173 square units
Answer: 84 un squared
Step-by-step explanation:
area of parallelogram = bh
area = 14 x 6 = 84 un squared
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar.
Y=-3x^2+155x-1148
The maximum profit is $854
Profit is the difference between the revenue and the cost price of an item. It is given by:
Profit = selling price - cost price
Since x represent the profit made by the company, is related to the selling price of each widget, x and it is given by the formula:
y = -3x² + 155x - 1148
At maximum profit, dy/dx = 0, hence:
dy/dx = -6x + 155
0 = -6x + 155
6x = 155
x = 25.83
The maximum profit is at gotten when the selling price of each widget is 25.83. Hence:
y = -3(25.83)² - 155(25.83) - 1148
y = $854
Therefore the maximum profit is $854
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A copy machine makes 171 coies in 4 minutes and 45 seconds. How many copies does it make per minute?
Answer:
36
Step-by-step explanation:
171/(4+0.75) =36
you want it to be in minutes, so calculate the 45 seconds over 60 seconds, which is 0.75. Add that to the 4 minutes, and divide the total number of copies over the time used, and you have speed/minute.
To find how many copies the machine makes per minute, we convert the total time to minutes (4 minutes and 45 seconds equals 4.75 minutes) and then divide the number of copies (171) by this time, resulting in 36 copies per minute.
Explanation:To calculate how many copies the machine makes per minute, we need to convert 4 minutes and 45 seconds into minutes. Since there are 60 seconds in a minute, 45 seconds is the same as 0.75 minutes (45/60). Adding this to 4 minutes gives us a total time of 4.75 minutes for the machine to make 171 copies. Now, to find the copies made per minute, we divide the number of copies by the number of minutes:
Copies per minute = Total copies / Total time in minutes
= 171 copies / 4.75 minutes
= 36 copies per minute.
A 5 foot woman stands near a 4 foot cello case. The cello case casts a shadow that is 6 ft long. How long is the shadow cast by the woman?
Answer:
150=6x
Step-by-step explanation:
Let x = height of the tree.
Set up the ratio %28Height%29%2F%28Shadow%29+=5%2F6=x%2F30
Since a%2Fb=c%2Fd means ad=bc,
5%2F6=x%2F30 means 5%2A30=6%2Ax
150=6x
please help solve with steps:
x + 3/4 = - 1/8
Answer:
x = - [tex]\frac{7}{8}[/tex]
Step-by-step explanation:
Given
x + [tex]\frac{3}{4}[/tex] = - [tex]\frac{1}{8}[/tex]
Multiply through by 8 to clear the fractions
8x + 6 = - 1 ( subtract 6 from both sides )
8x = - 7 ( divide both sides by 8 )
x = - [tex]\frac{7}{8}[/tex]
Answer:
x = -7/8
Step-by-step explanation:
x + 3/4 = - 1/8
Subtract both sides:
x + 3/4 - 3/4 = -1/8 - 3/4
x = -1/8 - 3/4
x = -7/8
Find a polynomial of degree 4 and the zeros are -2, 4, 4, 8
Required polynomial of degree four having zeros as -2 , 4 , 4 , 8 is [tex]f(x)=x^{4}-14 x^{3}+48 x^{2}+32 x-256[/tex]
Solution:Need to determine a polynomial of degree 4 and the zeros are -2, 4 , 4 and 8
Let the required polynomial be represented by f(x)
The factor theorem describes the relationship between the root of a polynomial and a factor of the polynomial.
If the polynomial p(x) is divided by cx−d and the remainder, given by p(d/c), is equal to zero, then cx−d is a factor of p(x).
-2 is zero of a polynomial means when x = -2, f(-2) = 0, so from factor theorem we can say that
=> x = -2 that is x + 2 = 0 is factor of polynomial f(x)
4 is zero of a polynomial means when x = 4, f(4) = 0 , so from factor theorem we can say that
=> x = 4 that is x -4 = 0 is factor of polynomial f(x)
4 is zero of a polynomial means when x = 4, f(4) = 0 , so from factor theorem we can say that
=> x = 4 that is x -4 = 0 is factor of polynomial f(x)
8 is zero of a polynomial means when x = 8, f(8) = 0 , so from factor theorem we can say that
=> x = 8 that is x -8 = 0 is factor of polynomial f(x)
So now we have four factors of polynomial f(x) that are (x + 2), (x -4) , (x -4) and (x – 8)
And as given that degree of polynomial f(x) is 4
Now f(x) is equal to product of factors
[tex]\begin{array}{l}{\Rightarrow f(x)=(x+2)(x-4)^{2}(x-8)} \\\\ {=>f(x)=(x+2)\left(x^{2}-8 x+16\right)(x-8)} \\\\ {=>f(x)=(x+2)\left(x^{3}-8 x^{2}+16 x-8 x^{2}+64 x-128\right)} \\\\ {=>f(x)=(x+2)\left(x^{3}-16 x^{2}+80 x-128\right)} \\\\ {=>f(x)=x\left(x^{3}-16 x^{2}+80 x-128\right)+2\left(x^{3}-16 x^{2}+80 x-128\right)} \\\\ {=>f(x)=x^{4}-16 x^{3}+80 x^{2}-128 x+2 x^{3}-32 x^{2}+160 x-256} \\\\ {=>f(x)=x^{4}-14 x^{3}+48 x^{2}+32 x-256}\end{array}[/tex]
Hence required polynomial of degree four having zeros as -2 , 4 , 4 , 8 is [tex]f(x)=x^{4}-14 x^{3}+48 x^{2}+32 x-256[/tex]
9.4(3.5 - 2.6x) = -0.4(5.5 + 4.85x)
PLEASE MARK BRAINLIEST!
Answer:
9.4(3.5 - 2.6x) = -0.4(5.5 + 4.85x)
Step-by-step explanation:
x = 1.56
Sorry I didn't show my work, my computer won't let me upload pictures right now. I hope this helps!