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Question 1118267: An item cost n dollars. If the price of the item increases by 15%, the new price can be represented by the expression n + 0.15 n . What expression can also represent the new price?

Click here to see answer by KMST(5328)

Question 1118349: P and Q are two points 16m apart in a hill, which has a slope of 5 degrees. From the base Q, an engineer measured the angle of elevation to the top of a rock further up the hill to be 35 degrees, while from P, the angle of elevation was found to be 54 degrees.
find the perpendicular height of the rock above P.
Click here to see answer by josgarithmetic(39613)

Question 1118363: The question said to perdict how many salses of each item below I am going to make next month. So I put 180 for all. It then said that they are wrong. I then changed my answers. Now it wants me to caculate the percent error for the number of tacos sold. the original amount I put that they said was wrong was 180. The correct amount was 255. So what is the percent error for the number of tacos sold?
Click here to see answer by josgarithmetic(39613)

Question 1118420: f(x) = 5e^x; estimate f '(1)

Click here to see answer by stanbon(75887)

Question 1118459: The difference between the length and width of a rectangle is 8 units. The peremeter is 84 units. Find the length and width.
Click here to see answer by ikleyn(52747)

Question 1118538: The sum of the two digits of a two-digit number is 12.If the digits are interchanged,the number is increased by 36. Find the number
Click here to see answer by Alan3354(69443)

Question 1118615: A person invest money in three different schemes for 6 years,10 years and 12 years at 10% ,12% and 15% simple interest respectively.At the completion of each scheme, he gets the same interest.The ratio of his investments is :
A)2:3:4 B)3 :4 :2 C)3: 4: 6 D)6 :3 :2
Click here to see answer by greenestamps(13195)

Question 1118669: Find the equation of the tangent to the graph at the indicated point.
f(x) = x^2 − 7x; a = −8
Click here to see answer by Alan3354(69443)

Question 1118669: Find the equation of the tangent to the graph at the indicated point.
f(x) = x^2 − 7x; a = −8
Click here to see answer by greenestamps(13195)

Question 1118711: use unit multipliers to convert 700 cubic centimeters per minute to cubic inches per hour
Click here to see answer by Boreal(15235)

Question 1118711: use unit multipliers to convert 700 cubic centimeters per minute to cubic inches per hour
Click here to see answer by josgarithmetic(39613)

Question 1118715: A mass is hung from a spring and set in motion so that it oscillates continually up and down. The velocity v of the weight at time t is given by the equation
v=−3cos(3πt)
with v measured in feet per second and t measured in seconds. Determine the maximum velocity of the mass and the amount of time it takes for the mass to move from its lowest position to its highest position.
What is the maximum velocity?
The time from high to low?
Click here to see answer by Theo(13342)

Question 1118729: Can ssa numbers be translated into state interstate area code or phone numbers.zip codes too
Click here to see answer by ikleyn(52747)

Question 1118729: Can ssa numbers be translated into state interstate area code or phone numbers.zip codes too
Click here to see answer by Alan3354(69443)

Question 1118765: Let event A be getting all green lights at 5 intersections. Let the probability of this be equal to 0.31. What is the complement of this event and what is the probability of that complement l?
Click here to see answer by Fombitz(32388)

Question 1118795: Find an equation describing all points P(x,y) equidistant from Q(-3,4) and R(1,-3).
(use the general equation of a line - input the numerical coefficient of each term of the equation below)
(Answer should be in this format:) _____x - _____y + _____ = _____
Click here to see answer by josgarithmetic(39613)

Question 1118834: https://www.founderseducation.net/assets/images/5ecbe96ff2b34e8fe970ae1a026315343fd98b1a.jpg

Click here to see answer by ikleyn(52747)

Question 1118833: Question 2 of 50
2.0 Points

What is the order of rotational symmetry for the figure?

A. 1
B. 4 or more
C. 3
D. 2

Click here to see answer by ikleyn(52747)

Question 1118859: Find the equation of the lines that are both passing through the point (10,-8) with slopes 5 and -1/5.
Answer: _____x - y - _____ = 0
x + _____y + _____ = 0
Click here to see answer by josgarithmetic(39613)

Question 1118864: Find the equation of the line which contains the point (-2,3) and is parallel to the line 3x+5y=17. (write the numerical coefficient of each term to complete the required equation)
Click here to see answer by greenestamps(13195)

Question 1118865: Find the equation of the line which contains the point (-2,3) and is parallel to the line 3x+5y=17. (write the numerical coefficient of each term to complete the required equation)
Answer: _____x + _____y - _____ = 0
Click here to see answer by josgarithmetic(39613)

Question 1118869: A small airplane at an altitude of 5000 feet is flying East at 300 feet per second, and you are watching it with a small telescope as it passes directly overhead. Refer to the figure above.
a. What is the slope of the telescope 5, 10, and 20 seconds after the plane passes overhead?
b. What is the slope of the telescope t seconds after the plane passes overhead?
c. After it passes overhead, is the slope of the telescope increasing, decreasing, or staying the same?
The solution for the first requirement from question a is provided as follows:
at 5 sec.:
speed = 300 ft/sec
distance = speed * time
= (300 ft/sec)
= 1,500 ft
slope = vertical distance/horizontal distance
Round off your answers to two decimal places.
(Answer should be in this format:)
a. at 10 sec, slope = _____at 20 sec, slope = 0._____
b. slope at t seconds = _____/t
c. _____
Click here to see answer by josgarithmetic(39613)

Question 1118867: Find the equations for two lines that both go through the point (1,2), one with slope 3 and one with slope -1/3. (write the numerical coefficient of each term to complete the required equation)
(Answer should be in this format:)
with slope = 3: _____x - y - _____ = 0
with slope = -1/3: x + _____y - _____ = 0
Click here to see answer by josgarithmetic(39613)

Question 1119087: What are the coordinates of a circle with standard equation x2 + y2 = 49? What is the value of the radius?
Answer: Center (0, _____) Radius = _____

Click here to see answer by josgarithmetic(39613)

Question 1119088: If the slope of a line L1 is -3/4, what is the slope of line L2 parallel to L1? What is the slope of line L3 perpendicular to L1? (Use decimal values for fractional answers, round-off up to 2 decimal places.)
Click here to see answer by josgarithmetic(39613)

Question 1119090: find the coordinates of the midpoint p between s(-5,7) and t(3,9).
Click here to see answer by josgarithmetic(39613)

Question 1119094: Divide 1423 By 24 In Base 5
Click here to see answer by math_helper(2461)

Question 1119094: Divide 1423 By 24 In Base 5
Click here to see answer by greenestamps(13195)

Question 1119086: What are the coordinates of a circle with standard equation x2 + y2 = 49? What is the value of the radius?
Click here to see answer by math_helper(2461)

Question 1119249: Consider the following hypothesis test.
H0: �1 - �2 = 0
Ha: �1 - �2 ≠ 0
The following results are for two independent samples taken from two populations.
Sample 1: n1 = 80, mean1 = 104, standard deviation1 = 8.4
Sample 2: n2 = 70, mean2 = 106, standard deviation2 = 7.6
What is the value of the test statistic?
What is the p-value?
With α = .05, what is your hypothesis testing conclusion?
Click here to see answer by Boreal(15235)

Question 1119326: (x 4)(x 5)=

Click here to see answer by josgarithmetic(39613)

Question 1119389: Ethan stands 256cm at point C from a lamp post AB. He is 180cm tall and his shadow from the lamp is 144cm long. Find the height AB, in metres, of the lamp post.
Click here to see answer by josgarithmetic(39613)

Question 1119444: Let f(x)=x+1 and define s(x) to be the slope of the line through the points (0,0) and (x,f(x)). a. Evaluate: s(5) and s(-2); b. Find an equation for s(x) in terms of x.
Note that fractional answers must be expressed like -5/6, and answers with exponents like (x^2-1)/(x+3). Use lower case letters.and do not use spaces in your answers.
Answer:
a. s(5) = _____ and s(-2) = _____
b. s(x) = _____
Click here to see answer by Boreal(15235)

Question 1119443: Find the slope of the line through the points P and Q when:
a. P(1,3) and Q(x, x2+3x-1)
b. P(x, x2+3x-1) and Q(x+h, (x+h)2+3(x+h)-1)

Answer: (Write the variables or letters first, then the number, say x+h+1)
a. m= _____
b. m= _____
Click here to see answer by Boreal(15235)

Question 1119459: find the quadratic equation whose roots are x=-2
Click here to see answer by ankor@dixie-net.com(22740)

Question 1119459: find the quadratic equation whose roots are x=-2
Click here to see answer by Shin123(626)

Question 1119466: A flat board leans against a wall. The upper edge is 6ft above the floor and the lower edge is 2ft. Out from the wall what is the slope of the board?
Click here to see answer by Alan3354(69443)

Question 1119445: Define A(x) to be the area of the rectangle bounded by the axes and the line y=2, and a vertical line at x as shown in the figure.
a. Evaluate A(2) and A(5)
b. Find an equation for A(x) in terms of x.
Answer:
a. A(2) = _____ and A(5) = _____
b. A(x) = _____
Click here to see answer by Alan3354(69443)

Question 1119482: In what time will rupees 1000 becomes Rs. 1331 at 10% rate p.a. Compound interest.
(A) 3 years (B) 4 years {C) 2 years (D) 10 years
Click here to see answer by josgarithmetic(39613)

Question 1119494: Find the derivative of �(x)=x*2/3-9x from first principle.
Click here to see answer by math_helper(2461)

Question 1119496: Find the centre and radius of circle whose equation is given by 2x*2+2y*2-6x=36
Click here to see answer by Alan3354(69443)

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