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Lucy
Questions and answers by
Lucy
, page 2
Questions (625)
Solve:
(1/81)^t=243^t-2 The book states to get the same base but I don't understand. Thanks for any help.
2 answers
972 views
I need help with scales and converting them to real-life measurements.
So, there's this line on the page that measures 1 metre in
1 answer
406 views
Please check answers:
Use the equation of the exponential function whose graph passes through the points (0,-2) and (2,-50) to
3 answers
1,546 views
I cannot figure out how to work this one. I have tried working it like the example in the book but cannot come up with one of
1 answer
438 views
Please check the following:
Solve log4(m-3)+ log4(m+3) =2 Answer: 1 Solve 6^3n=43^5n-4 Answer: 1.1202 Solve 5^2x+1>=50
1 answer
1,372 views
Write the equation log243(81)=4/5 in exponential form.
My answer is 243^4/5=81. Evaluate 9^log9(54). My answer is 6. Are these
4 answers
1,993 views
Solve log2(7x-3)>= log2(x+12)
My work: 6x=15 x=15/6 x-5/2 so my answer would be: x>= 5/2 Is this correct?
2 answers
1,117 views
Simplify:
(x^5)(x^pi) Answer: x^5+pi x=8.14 Round to 4 decimal places if necessary: (1/5)^t-2 = 125 (5^-1)^t-2=125 5^-t+2=5^3
1 answer
374 views
Solve, round to four decimal places if necessary:
log4(x-9)=2 Answer: x-9=4^2 x-9=16 x=11 log4(z)+log4(z-3)=1 Answer: z+z-3=1
3 answers
722 views
Solve, round to 4 decimal places if necessary:
3.9^m-4=10.21 Answer: (m-4)In(3.9)=In(10.21) m(In3.9)-4(In3.9)=In(10.21)
1 answer
409 views
Log6(6^9)=???
Answer: 9 Ine^-3x=??? Answer: -3x Use log5(2) = 0.4307 and log5(3) = 0.6826 to approximate the value of log5(12)
2 answers
1,132 views
last 2 for tonight
Express log6(19) in terms of common logarithms. Then approximate its value to four decimal places. Answer:
3 answers
677 views
Simplify:
x^5*x^pi Answer: x^8.14 Is this correct? I know that this is a repost of a question I posted yesterday, and I
2 answers
557 views
1) A red die and a blue die are tossed. What is the probability that the red die shows a 3 and the blue die shows a number
4 answers
1,686 views
Two cards are drawn from a standard deck of cards. Find the probability that a king or a red card is drawn.
Work: 4/52 +
1 answer
378 views
How can I tell whether a function will be reflected in the x-axis or y-axis and whether it will be horizontally and vertically
3 answers
418 views
The problem is:Prove that the statement 1/5+1/5^2+1/5^3+...1/5^n=1/4(1-1/5^n) is true for all positive integers n. Write your
1 answer
379 views
The problem is:Prove that the statement 1/5+1/5^2+1/5^3+...1/5^n=1/4(1-1/5^n) is true for all positive integers n. Write your
1 answer
397 views
In an election poll, 56% of voters chose a certain candidate. find the margin of sampling error.
So far I have:
3 answers
628 views
During a sale, 1/6 of the CD prices are reduced. Find the probability that 2 of 4 randomly-selected CDs have reduced prices.
How
2 answers
732 views
What's the difference between heat capacity and specific heat capacity?
What units are each measured in?
2 answers
491 views
1)Rewrite 5pi/4 radians in degree measure.
Answer: 225 2) Which angle is coterminal with a -400 degree angle in standard
2 answers
558 views
1) Find the exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8).
Answer: 3/5 2)
5 answers
623 views
How do you find the cotangent of an angle?
My problem is: Find the exact value of cot(-315degrees). I don't know how to do this.
1 answer
397 views
Write the equation siny=x in the form of an inverse function.
Answer: x=Sin^-1y Thanks
1 answer
408 views
Find the value of tan[tan^-1 1/2]
My answer is 1/2. Is this correct?
1 answer
290 views
Solve y= ARCsin1/2
My answer is pi/6 Is this right?
1 answer
267 views
1) Write an equation of the line that passes through (9,6) and is perpendicular to the line whose equation is y=-1/3x+7.
Answer:
1 answer
469 views
Simplify: (y^2+y-20)/(y^2-2y-8)
Answer: y+5/y+2 2)Simplify: (1+i)/(2-i) Answer: 1/5+3/5 i 3) Solve 3x^2-8x+4=0 by graphing. If
1 answer
474 views
Find the exact solution to 6x^2+1= -8x by using the Quadratic Formula.
Answer: -4 +/- sqrt 10 2)Which describes the number and
2 answers
1,207 views
Find the standard deviation of the data set to the nearest tenth:
(21, 13, 18, 16, 13, 35, 12, 8, 15) Answer: 16.8 thanks
2 answers
580 views
What is "constitutional power?"
I have to write a response to this statement (either agreeing/disagreeing): "The Prime Minister
5 answers
459 views
Trigonometry identities are so hard...
I need some help proving these identities: *Oh, and I'm only in grade 11, so the
6 answers
642 views
What is the answer to
(sin45) / (cos45)?
2 answers
528 views
An insect population P in a certain area fluctuates with the seasons. It is estimated that P= 17,000 + 4500sin (pi)(t)/52, where
3 answers
686 views
State the phase shift of y=cos(theta-[pi/3]). Then graph the function.
I know that you cannot graph on this site but how do I
3 answers
625 views
Verify that (sec theta/sin theta)(cot theta/csc theta) = csc theta is an identity.
Thanks
2 answers
1,085 views
Find the exact value of: cos315 degrees.
Is the answer sqrt of 2/2? Thanks
1 answer
412 views
Find sec theta if tan theta =1/4 and 180 degrees<theta<270 degrees.
Answer: sqrt17/4 Thanks
1 answer
492 views
Find cos theta if sin theta = 3/5 and 90 degrees<theta<180 degrees.
Is the answer -sqrt34/5? Appreciate you checking my anwers.
2 answers
1,159 views
Which of the following expressions are not equal to 1?
A) sin^2 theta + cot^2 theta sin^2 theta B) (sin^2 theta/1-cos theta)-cos
2 answers
901 views
Find the exact value of cos 375 degrees.
Answer: (sqrt6 + sqrt2)/4 Is this correct?
2 answers
997 views
Find the exact value of sin(theta/2) if cos theta = 2/3 and 270 degrees<theta<360 degrees.
Answer: sqrt6/6
2 answers
813 views
1) Find the exact value of cos 105 degrees by using a half-angle formula.
2)Find the solution of sin 2theta = cos theta if 0
3 answers
1,682 views
1)Find the exact value of sin 165 degrees.
Answer: (sqrt6 + sqrt2)/4 2) Simplify: (4m/5n^2)- (n/2m) Answer: (8m^2-5n^3)/10n^2m
3 answers
1,416 views
Find the exact solution(s) of the system: (x^2/4)-y^2=1 and x=y^2+1
Answer:(4,sqrt3),(4,-sqrt3) 2)Write an equation for an
1 answer
390 views
In which of the following poems does the tone change from stanza to stanza?
1) "Storm Ending" 2) "We Wear the Mask" 3) "Any Human
2 answers
521 views
I have to design an experiment to measure the speed of sound.
We're given a tape measure and a stopwatch. The temperature of the
1 answer
444 views
Why is there likely to be fewer plants growing in the shaded ground under a tree than elsewhere?
2 answers
662 views
How do I do an embedded APA Citation for a picture?
I need to put the citation underneath a picture within my report. Thanks Lucy
1 answer
493 views
1)Find the exact value of sin 165 degrees.
Answer: (sqrt6 + sqrt2)/4 2) Simplify: (4m/5n^2)- (n/2m) Answer: (8m^2-5n^3)/10n^2m
2 answers
1,263 views
Find the exact solution(s) of the system: (x^2/4)-y^2=1 and x=y^2+1
Answer:(4,sqrt3),(4,-sqrt3) 2)Write an equation for an
1 answer
400 views
What were the main causes of the American Civil War?
I have - Slavery States rights v.s. federal law Economic issues (tariffs)
2 answers
619 views
what is the dollar value of ending inventory if there were 17,000 units on hand on December 31?
January 1 beginning inventory
2 answers
543 views
please check my answer thanks
Janet took a standardized test that had 328 questions. She answered 75 %of the questions. How many
2 answers
606 views
please check my answer thanks
Equation 9(2x-18) = 36 18 -162 = 36 18 x 162 =36 + 162 + 162 18 x = 198 18x 198 18 =18
5 answers
631 views
an invoice for office supplies is shown
below. Based on the informstion in the invoice calculate the invoice total Note: Shipping
1 answer
479 views
Find DE if D=[-2 4 6] and E=[1 -2]
[5 -7 1] [0 4] [-3 4] I followed the example in the book on how to multiply matrices and one I
3 answers
402 views
I must write a prose satire aimed at changing the behavior or attitude of your audience. I cannot think of any topic to write
3 answers
1,100 views
Please check this for me thanks I have to do paper on cervical cancer thanks again
Cervical Cancer A. Understanding Cancer Cancer
2 answers
993 views
Please check this for me thanks I have to do paper on cervical cancer thanks again
Cervical Cancer A. Understanding Cancer Cancer
1 answer
498 views
How does my paper sound and ideas what I cando to make it sound better thanks so much for your help :)
Cervical Cancer A.
1 answer
459 views
I am confused as to when I should use la or el. For example:
Mi televisor es peor que el televisor de mi hermano. Es
7 answers
1,043 views
A farmer can plant a combination of two different crops on 20 acres of land. Seed costs $120 per acre for crop A and $200 per
2 answers
895 views
The graph of the equation y=x^3-x is symmetric with respect to which of the following?
a) the x-axis b) the y-axis c) the origin
4 answers
2,819 views
Which of the following results in the graph of f(x)=x^2 being expanded vertically by a factor of 3 and reflected over the
5 answers
3,767 views
The directions are to use affirmative tu commands to fix the following:
1) el perro tiene hambre 2) hay mucha basura en la cocina
3 answers
922 views
Write the polynomial equation of least degree that has the roots: -3i, 3i, i, and -i.
Answer:
3 answers
748 views
Is the graph of x^2/9-y^2/25 symmetric with respect to the x-axis, y-axis, neither axis, or both axes. Explain.
1 answer
414 views
If f(x)=4x^2 and g(x)=2/x, find [g x f](x).
Answer: -1/2x^2 2) Are f(x)=1/2x+5 and g(x)=2x-5 inverses of each other? Answer: no
1 answer
326 views
Write the slope-intercept form of the equation of the line that passes through the point (-5,4)and has a slope of -1.
Answer:
1 answer
353 views
Approximate the greatest real zero of the function g(x)=x^3-3x+1 to the nearest tenth.
1 answer
381 views
Use the Remainder Theorem to find the remainder of (x^3-5x^2+7x+3)/(x-2). State whether the binomial is a factor of the
3 answers
650 views
Determine whether the function f(x)[x+1] is odd, even, or neither.
Answer: neither odd nor even 2)Find the least integral upper
1 answer
825 views
Name all the values of x that are not in the domain of f(x)=2-x^2/x+5.
Answer: x= -5 2)Find the minimum value of f(x,y)=2x-y+2
1 answer
363 views
Find the slope of the line passing through the points at (a, a+3) and (4a, a-5).
2) Together, two printers can print 7500 lines
1 answer
463 views
Find the critical point of the function y=-2(x-1)^2-3. Then, determine whether the point represents a maximum, a minimum, or a
1 answer
385 views
Describe the linear programming situation for this system of inequalities where you are asked to find the maximum value of
1 answer
478 views
A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At
1 answer
484 views
Describe the end behavior of f(x)=2x^4-5x+1.
3 answers
1,440 views
Choose the statement that is true for the graph f(x) =x^3-12x.
Answer: f(x) decreases for x >-2 2) Which type of critical point,
3 answers
1,579 views
Which is true for the graph of f(x)= -x^3+3x-2?
Answer: relative maximum at (1,0) 2) Determine between which consecutive integers
1 answer
639 views
The volume V of a gas varies inversly as pressure P is exerted. If V is 3.5 liters when P is 5 atmospheres, find V when P is 8
3 answers
561 views
Find the number of possible negative real zeros for f(x)=6+x^4+2x^2-5x^3-12.
Answer: 0 2) Approximate the real zeros of
1 answer
414 views
If cot theta =0.85, find tan theta.
Answer: 1.176
1 answer
420 views
The angle of elevation from the end of the shadow to the top of the building is 63 degrees and the distance of 220 feet.
1) Find
4 answers
1,079 views
Determine whether the function f(x)[x+1] is odd, even, or neither.
Answer: neither odd nor even 2)Find the least integral upper
1 answer
416 views
Name all the values of x that are not in the domain of f(x)=2-x^2/x+5.
Answer: x= -5 2)Find the minimum value of f(x,y)=2x-y+2
1 answer
697 views
Find the slope of the line passing through the points at (a, a+3) and (4a, a-5).
2) Together, two printers can print 7500 lines
2 answers
948 views
Find the critical point of the function y=-2(x-1)^2-3. Then, determine whether the point represents a maximum, a minimum, or a
1 answer
396 views
Determine the value of w so that the line whose equation is 5x-2y=-w passes through the point at (-1,3).
Answer: w=11
1 answer
463 views
Find the number of possible negative real zeros for f(x)=6+x^4+2x^2-5x^3-12.
Answer: 0 2) Approximate the real zeros of
1 answer
433 views
A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At
1 answer
626 views
Describe the linear programming situation for this system of inequalities where you are asked to find the maximum value of
1 answer
883 views
Name all the values of x that are not in the domain of f(x)=2-x^2/x+5.
Answer: x= -5 2)Find the minimum value of f(x,y)=2x-y+2
1 answer
357 views
I need help-I do not understand.
The question is this: Write 2x+y=5 in polar form. By following the example in the book I get:
1 answer
997 views
How do you find the polynomial funtion that best models data givn in a table for x and f(x). The only example in my testbook
1 answer
433 views
The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle
1 answer
1,080 views
State the period and phase shift of the function y=-4tan(1/2x + 3pi/8)
a) 2pi, -3pi/4 b) pi, 3pi/8 c) 2pi, 3pi/8 d) pi, -3pi/8
5 answers
1,375 views
Find a numerical value of one trigonometric function of x if
tanx/cotx - secx/cosx = 2/cscx a) cscx=1 b) sinx=-1/2 c)cscx=-1
2 answers
868 views
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