If exy = 3, then what is dy/dx at the point (1, ln3)?
Carlos’s credit card has an APR of 14.78% and a grace period of 18 days, and Carlos pays his balance in full every month. If his last billing cycle ended on March 28, 2010, and he made his payment on April 13, 2010, Did he owe any interest on his last statements balance?
15 4/5% of 50
A. .79 B. 79
C. 790 D. 7.9
"The correct answer is B. 79.
To solve the given problem, we need to calculate 15 4/5 percent of 50. First, let's convert the mixed number to an improper fraction to make the calculation easier.
15 4/5% as a fraction is 15 + 4/5, which can be written as 75/5 + 4/5 = 79/5.
Now, to find the percentage of 50, we multiply 50 by the fraction representing the percentage:
[tex]\[ \frac{79}{5} \times 50 = \frac{79 \times 50}{5} \][/tex]
Next, we simplify the multiplication:
[tex]\[ \frac{79 \times 50}{5} = \frac{3950}{5} \][/tex]
Now, we divide 3950 by 5:
[tex]\[ \frac{3950}{5} = 790 \][/tex]
However, since we are looking for 15 4/5 percent and not 15 4/5 times 50, we need to adjust our calculation by dividing by 100 to get the correct percentage:
[tex]\[ \frac{790}{100} = 79 \][/tex]
Therefore, the final answer is B. 79."
A ball made out of a special material is inflated such that its diameter changes from 12inches to 15 inches. What is the approximate change in the volume of the ball?
Riya is applying to her garden.She applies it at a rate of 25 ,000 cm^3 of mulch for every m^2 of garden space. At what rate is ray applying mulch in m^3/m^2
Riya is applying mulch at a rate of 0.025 m^3/m^2 after converting the original rate of 25,000 cm^3/m^2 to cubic meters per square meters.
Explanation:To find out the rate at which Riya is applying mulch in m^3/m^2, you first need to convert the given value from cubic centimeters (cm^3) to cubic meters (m^3). We know that 1 m = 100 cm, so 1 m^3 = 100 cm * 100 cm * 100 cm = 1,000,000 cm^3. Therefore, we need to divide the given value by 1,000,000 to convert it from cm^3 to m^3. So, if Riya applies 25,000 cm^3 of mulch for every m^2 of garden space, this is equivalent to 25,000/1,000,000 = 0.025 m^3/m^2.
In conclusion, Riya is applying mulch at a rate of 0.025 m^3/m^2.
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f is between e and g, EF=7 and FG=6. find EG
The measure of line segment EG is 13 cm.
Given that, F is between E and G, EF=7 and FG=6.
We need to find the measure of EG.
What is a line segment?A line segment is a part of a line that has two endpoints and a fixed length. It is different from a line that does not have a beginning or an end and which can be extended in both directions. In this lesson, we will learn more about a line segment, its symbol, and the way to measure a line segment.
Now, EG=EF+FG
⇒EG=7+6=13 cm
Therefore, the measure of line segment EG is 13 cm.
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Solve the system of equations and choose the correct ordered pair. 2x + 6y = 6 3x – 2y = 20
Answer:
solution is (6,-1)
Step-by-step explanation:
[tex]2x + 6y = 6[/tex]
[tex]3x – 2y = 20[/tex]
WE use elimination method to solve for x and y
Multiply the second equation by 3
[tex]3x – 2y = 20[/tex] times 3
[tex]9x – 6y = 60[/tex]
[tex]2x + 6y = 6[/tex] , add both equations
------------------------------
[tex]11x = 66[/tex]
Divide both sides by 11
[tex]x=6[/tex]
Plug in 6 for x in first equation
[tex]2x + 6y = 6[/tex]
[tex]2(6) + 6y = 6[/tex]
[tex]12 + 6y = 6[/tex], subtract 12 on both sides
[tex]6y = -6[/tex]
divide both sides by 6
[tex]y=-1[/tex]
[tex]x=6 \ and \ y= -1[/tex]
Find the least common multiple of x² + x – 12 and x² + 2x – 15.
A) (x + 4)(x - 3)(x + 5)
B) (x – 3)(x + 5)(x – 4)
C) (x – 4)(x – 3)(x – 5)
D) (x + 4)(x – 5)(x – 3),
The least common multiple of x² + x – 12 and x² + 2x – 15 is (x + 4)(x – 3)(x + 5), Option A is correct.
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax2+bx+c=0. with a ≠ 0 .
We need to find the least common multiple of x² + x – 12 and x² + 2x – 15.
Let us find the factor of x² + x – 12
x² + 4x -3x – 12
x(x+4)+3(x+4)
(x + 4)(x – 3)
Now let us factorize x² + 2x – 15.
x² + 5x-3x – 15.
x(x+5)-3(x+5)
(x-3)(x+5)
So, the least common multiple of x² + x – 12 and x² + 2x – 15 is (x + 4)(x – 3)(x + 5).
Hence, the least common multiple of x² + x – 12 and x² + 2x – 15 is (x + 4)(x – 3)(x + 5), Option A is correct.
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How to find the measure of an interior angle of an irregular polygon?
HELPP needed due today !!
The sum of 3 consecutive even numbers of 78
Raj is 3 years older than Zia. The sum of the squares of their ages is 369. How old are they?
Final answer:
Zia's age is 12 and Raj's age is 15
Explanation:
To solve this problem, we can set up two equations using the given information. Let's assume Zia's age is x. Since Raj is 3 years older than Zia, Raj's age can be represented as x + 3.
The first equation is [tex]x^2 + (x + 3)^2 = 369.[/tex]
Simplifying this equation, we get [tex]x^2 + x^2 + 6x + 9 = 369.[/tex]
Combining like terms, we have [tex]2x^2 + 6x + 9 = 369.[/tex]
Next, we can rearrange the equation by subtracting 369 from both sides and combining like terms to get [tex]2x^2 + 6x - 360 = 0.[/tex]
Now, we can solve this quadratic equation for x using factoring, completing the square, or the quadratic formula. The solutions are x = -15 and x = 12.
Since age cannot be negative, Zia's age is 12 and Raj's age is 12 + 3 = 15.
A plane flies round-trip to Philadelphia. It flies to Philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour. If the total trip takes 6.5 hours, how many miles does the plane fly round-trip? 560 miles 800.8 miles 1,300 miles 1,601.6 miles
A customer buys an apple pie for $8.04, 6 cloves of garlic for $0./9 each, and a quarts of milk for $1.31. You are working the cash register. The customer gives you a $5 bill, six $1 bills, and a quarter. The register tells you that you ow the customer $0.16 . Round the price of each item to the nearest $0.10 to estimate how much the customer owes.
Final answer:
To estimate the total cost, round each item to the nearest $0.10, sum them up, and subtract from the amount given by the customer. The estimated total cost is $9.80, and the estimated change to be returned is $1.45.
Explanation:
To estimate the total amount the customer owes after rounding to the nearest $0.10, we need to perform the following calculations:
Apple pie: $8.04, rounded to $8.00
6 cloves of garlic: $0.09 each, so $0.09 x 6 = $0.54, rounded to $0.50
Quart of milk: $1.31, rounded to $1.30
The estimated total cost is $8.00 (apple pie) + $0.50 (garlic) + $1.30 (milk) = $9.80.
The customer gives a total of $5 + $6 + $0.25 = $11.25.
Subtracting the estimated total cost from the amount given by the customer:
$11.25 - $9.80 = $1.45, which is the estimated change to be returned to the customer.
HELP!! ASAP!!!!! Which system of equations below has infinitely many solutions?
a) y = –3x + 4 and y = –3x – 4
b) y = –3x + 4 and 3y = –9x + 12
c) y = –3x + 4 and y = -1/3+ 4
d) y = –3x + 4 and y = –6x + 8
Answer:
The correct option is B. [tex]y=-3x+4 \ \text{and}\ \ 3y=-9x+12[/tex]
Step-by-step explanation:
Consider the two linear equation:
[tex]a_1x+b_1y+c_1=0\ \text{and}\ \ a_2x+b_2y+c_2=0[/tex]
The pair of linear equation has infinitely many solutions when:
[tex]\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}[/tex]
Now consider the option.
Option a) [tex]y=-3x+4 \ \text{and}\ \ y=-3x-4[/tex]
The above equation can be written as:
[tex]y+3x-4=0 \ \text{and}\ \ y+3x+4=0[/tex]
Therefore,
[tex]\frac{1}{1}=\frac{3}{3}\neq\frac{-4}{4}[/tex]
Thus, this pair has no solution.
Now consider the option B. [tex]y=-3x+4 \ \text{and}\ \ 3y=-9x+12[/tex]
The above equation can be written as:
[tex]y+3x-4=0 \ \text{and}\ \ 3y+9x-12=0[/tex]
Therefore,
[tex]\frac{1}{3}=\frac{3}{9}=\frac{-4}{-12}[/tex]
Thus, this pair has infinitely many solution.
Hence, the correct option is B. [tex]y=-3x+4 \ \text{and}\ \ 3y=-9x+12[/tex]
In a class, every student knows French or German (or both). 15 students know French, and 17 students know German. What is the largest possible number of students in that class?
Solution:
we are given that
In a class, every student knows French or German (or both).
15 students know French, and 17 students know German.
Suppose there are x student who knows both French and German.
Then Total number of student in the class will be [tex] (15+17-x)=32-x [/tex]
But to guess the largest possible number of student in the class we can assume x=0
Hence the largest Possible number of Student in the class=32
Which set of side lengths can form a triangle?
a. 6cm, 8cm, and 16cmB. 6cm, 8cm, and 10cmC. 6cm, 7cm, and 14cmD. 6cm, 7cm, and 20cm
Answer each question (5 points each). the sample space of a probability experiment is ???? = {????, ????, ????,????, ????, ????, ????, ????} and three events are ???? = {????, ????, ????,????} ???? = {????,????, ????, ????} ???? = {????, ????, ????, ????} (a) what are the outcomes in the event ???? ???????? ????? (b) what are the outcomes in the event ???? ???????? ???? ???????? ????? (c) what are the outcomes in the event ???? ???????????? ????? (d) what are the outcomes in the event ???? ???????????? ?????
Describe the graph of the following inequality: 2x - 5y ≤ 6
To graph the inequality 2x - 5y ≤ 6, plot the line 2x - 5y = 6 with a solid boundary, test a point to determine the solution region, and shade the region that satisfies the inequality, which is below and to the right of the boundary line.
Explanation:To graph the inequality 2x - 5y ≤ 6, you must first draw the boundary line of the inequality. This line is created by graphing the equation 2x - 5y = 6.
Start by finding the intercepts. For the x-intercept, set y to 0 and solve for x, which gives x = 3. For the y-intercept, set x to 0 and solve for y, which gives y = -6/5. These two points can be used to draw the boundary line. Since the inequality is '≤', this line will be solid to show that points on the line satisfy the inequality.
Now you must determine which side of the line contains the solutions to the inequality. You can do this by choosing a test point that is not on the line, like (0,0). Substitute this point into the inequality: 2(0) - 5(0) ≤ 6 is true, so the area containing (0,0), which is below and to the right of the line, is the solution region. Shade this area to show all points that satisfy the inequality 2x - 5y ≤ 6.
In a billiards game, Pete hits a ball that is 20in. from a wall. The ball travels 34 in. until it hits the wall and bounces to a position that is 16 in. from the wall. What proportion can be used to find the distance, x, the ball traveled after it bounces off the wall to get to the ending position? CHECK ALL THAT APPLY!
options
34/x =20/16
20/16 = 34/x
16/20 = x/34
20/16 = x/34
To find the distance the ball traveled after it bounces off the wall, we can use the proportion 34/x = 20/16, which simplifies to x = 27.2 inches.
To find the proportion that can be used to find the distance, x, the ball traveled after it bounces off the wall, we can use the equation:
34/x = 20/16
After cross multiplying, we get:
34 × 16 = 20x
Simplifying further:
544 = 20x
Dividing both sides by 20, we find:
x = 27.2
Therefore, the distance the ball traveled after it bounces off the wall is 27.2 inches.
Bars of soap come in packages of 6 and packages of 8. The 6-bar pack costs $7.86, and the 8-bar pack costs $8.88. Which is the better deal? What is the
price per bar of the better deal?
Using the law of cosines, in triangle RST, if r=14 yd, s=9 yd, t=16 yd find m angle s
Help? Thank you
50 POINTS!!!!!!! Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 14% protein?
How many pounds of cornmeal should be in the mixture?
How many pounds of soybean meal should be in the mixture?
Triangle ABC is undergoing a series of transformations. Which of the following transformations will NOT cause the resulting triangle A'B'C' to maintain congruence with triangle ABC? A. reflection over the x-axis B. translation 6 units to the right C. dilation with a scale factor of 3 D. rotation of 180 degrees clockwise
Answer:
The image triangle compare to the pre-image triangle will be similar due to dilation.
Step-by-step explanation:
if (1+sina)(1+sinb)(1+sinc)=(1-sina)(1-sinb)(1-sinc)=k then value of k=?
a. (cosacosbcosc)
b.(sinasinbsinc)
c. (3sinasinbsinc),
If x = 12.8, what is the value of 2(z - 4)? [Type your answer as a number.]
need help
"Hope this is your question, if not I think you will, still be able to find an answer of your question based on this solution"
The expression is :
2(z-4)
so we may think that the given value is z = 12.8 instead of x=12.8, then only we can plug it in given expression.
so plugging z=12.8 in the expression:
2(12.8-4)
We will use PEMDAS rule here,
So simplifying parenthesis first,
12.8-4 = 8.8
Now multiplying the result 8.8 with 2 to get the answer,
8.8 *2 = 17.6
Answer : 2(z-4) = 17.6 for z=12.8
"hope this helps"
Multiple Choice
You can model the population of a certain city between 1945-2000 by the radical function P(x)=55,000 sqrt x-1945. Using this model, in which year was the population of that city 165,000?
A)1948
B)1951
C)1954
D)1957,
sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2.
Final answer:
To sum the given polynomials, you combine like terms, resulting in the final expression of -3x^2 + 6.
Explanation:
The sum of the polynomials 2x2 + 3x - 4, 8 - 3x, and -5x2 + 2 can be found by combining like terms. This process involves adding the coefficients of terms with the same power of x.
Step 1: Identify and arrange like terms.
Terms with x2: 2x2 and -5x2Terms with x: 3x and -3xConstant terms: -4, 8, and 2Step 2: Combine like terms.
For x2 terms: 2x2 + (-5x2) = -3x2For x terms: 3x - 3x = 0x (This term will cancel out)For constant terms: -4 + 8 + 2 = 6Step 3: Write the sum of the polynomials.
The sum is: -3x2 + 6.
Which equation has a slope of 3 and a y intercept of 4?
A.y = 3x - 4
B.y = 3x + 4
C.y = 4x - 3
D.y = 4x + 3
The general equation in slope intercept form is given by:
[tex] y=mx+b [/tex]
where m is the slope and b is the y intercept.
Now we are given slope as 3 and y intercept as 4, plugging these values in the slope intercept form, we get
[tex] y=3x+4 [/tex]
Now if we compare the two equations, we see that option (b) y=3x+4 matches our requirement.
So answer is the equation with slope 3 and y intercept 4 is y=3x+4.
What do you ask about if you want to know the price of an item?
A. el dependiente
B. el vestido
C. el precio
D. la tienda
Please help thank you
Answer:
1. C el precio
2. C mil
3. C El abrigo y las botas cuestan doscientos dolares
4. A maya
5. C blouse
Step-by-step explanation: