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Fred
Questions and answers by
Fred
, page 3
Questions (297)
In how many ways can 4 girls and 3 boys be arranged in a row so that the girls are always together? Answer: 576
1 answer
435 views
The polynomial P(x) is given by P(x) = ax^3 + 15x^2 + cx - 72, where a and c are constants. The three zeros of P(x) are -3, 2
1 answer
389 views
The ratio between the first term and the second term in an arithmetic sequence is 3/4. The ratio between the second term and the
3 answers
691 views
The first three terms of a geometric progression are 2^n, 2^n+1, 2^n+2. Find n. ( Answer is 0.5)
3 answers
379 views
For the geometric sequence t: {3, m, n, 192, . . .}, find the values for m and n.(Answer is m=12, n=48)
How can we do this
4 answers
548 views
The difference between the first term and the second term in a geometric sequence is 6. The difference between the second term
2 answers
514 views
What is the sum of all numbers ending in 2 or 9 between 1000 and 2000?
Answer is 300 100
3 answers
522 views
A factory sells shoes at $60 a pair. For 10 pairs of shoes there is a discount, whereby each pair costs $58. For 20 pairs the
4 answers
840 views
Mohammed's mother invests $200 for him each birthday up to and including his 18th birthday. The money earns 6% p.a. How much
5 answers
456 views
Marcus and Rachel want to save up $25 000 for a deposit on an apartment in 6 years' time. They aim to pay around half the
3 answers
588 views
For the curve y = x^3 - 27x - 3, show that it is monotonic increasing for all values of x.
Thanks to anyone who helps
1 answer
466 views
Suppose that T= ar^n-1 is a GP with a limiting sum.
a) Find the common ratio r if the limiting sum equals 5 times the first term.
4 answers
643 views
If dx/dt=(t-3)^2 and x=7 when t=0, find x when t=4.
Answer = 49/3 Thanks for anyone's help
1 answer
352 views
Leila has a number of identical equilateral triangle shaped tiles. How many must she put together in a row (edge to edge) to
5 answers
794 views
Find the smallest distance between the graphs y=x^2 - 4x + 12 and y=2x + 1. Thanks for any help
Answer= 0.894427...
1 answer
360 views
The curve y = ax^2 + bx + c touches the line y = 2x at the origin and has a maximum point at x = 1. Find the values of a, b and
1 answer
461 views
Find the values of x for which the function y = x^2/3 is increasing.
1 answer
430 views
Two sides of a rectangle lie along the x and y axes. The vertex opposite the origin is in the first quadrant and lies on 3x + 2y
4 answers
1,248 views
A superannuation fund paid 6% p.a. for the first 10 years and then 10% p.a. after that. If Thanh put $5000 into this fund at the
4 answers
927 views
Helen has just retired with $500 000 in her account and wishes to start an annuity. She intends to withdraw $M at the end of
3 answers
678 views
A cone shaped vessel has a height of twice its radius. If I fill the vessel with water to a depth of 10 cm, find the volume of
2 answers
504 views
Find the area enclosed between the curves y=(x-1)^2 and y=5-x^2.
Answer is 9. Thanks for any help provided
1 answer
379 views
Is there any difference in the effect of linear dilation in between a bar and a hollow bar? Which ones dilates the most?
My guess
3 answers
407 views
Problem Page
In a recent study, males used a new weight-loss supplement, and all but of them experienced weight loss after two
1 answer
750 views
Suppose you buy a ticket for a raffle. The ticket price is $5 and the price is worth $200. If 100 tickets were sold. What is the
2 answers
754 views
A relative density bottle of mass 25g has a capacity of 50cm
3 . The bottle is completely filled with methylated spirit, and its
2 answers
571 views
Elvis Presley was a transformative figure because he was
1 answer
453 views
Read this excerpt from "The Kick and the Click."
"They’ll get over it eventually," his sister Gabriella said as she walked up
4 answers
2,111 views
Two places X and Y are 960km apart and X is due south of Y if the latitude of X is 40^°N .find the latitude of Y
4 answers
407 views
1 L of a buffer that is 0.85 M in formic acid and 1.4 M in sodium formate. Calculate the pH after the addition of 0.15 mol HCl.
1 answer
394 views
what is the pH of a buffer that is 0.76 Min HF and 0.98 M in NaF
4 answers
713 views
The partial fraction decomposition of x^2 +18/(x-3)(x^2+4) can be written in the form of f(x)/x-3 + g(x)/x^2 +4.
The possible
1 answer
397 views
In an experiment to determine the size of an oil molecule ,clean water was placed in a large basin and then left over several
1 answer
374 views
There are 5 pieces of fruit in a bowl with 3 types of fruit what fraction was there of each fruit
1 answer
299 views
The diagram shows the electromagnetic spectrum. Which letters represent radio and gamma waves? Click on the image to make it
3 answers
310 views
What method do we use to reject lotto numbers?
4 answers
283 views
Which spectral class does a star fit into if it has a surface temperature of 20,000k
1 answer
135 views
What method is used for calculating depreciation provides for equal periodic charges to be written off over the estimated useful
2 answers
90 views
Make A the subject formula of A=2πr(h+r)
1 answer
131 views
determine the missing value to complete this equation 6 + 10 - ___ = 6
A 10 B -10 C -6 D 6
17 answers
84 views
Simplify 3 - (4x - 5) + 6.
A) 12x + 21 B) 4x + 14 C) 4x + 4 D) -4x + 14
5 answers
26 views
Choose the equation that could be used to solve this problem.
Together, Mark and David traveled 570 miles to the beach. If Mark
3 answers
47 views
What is the value of x when −3x+9=−19? (1 point) Responses -9 -9 9 9 3 2/3 3 and 2 thirds −3 2/3
5 answers
24 views
Clara wants to bike 112 miles this week. That is 20 miles less than 2 times the number of miles she biked last week. How many
25 answers
72 views
Mrs. Patel has two plants. The first plant has a height of 0.6 meter. The height of the second plant is 0.25 meter shorter.
32 answers
111 views
Solve for n. −2(4+n)=24 (1 point) Responses n = 16 n = 16 n = -8 n = -8 n = 8 n = 8 n = -16
2 answers
32 views
Solve for x. 5/8(x+1/2)=100 (1 point) Responses 160 1/2 160 62 62 159 1/2 63
2 answers
43 views
Solve for w. 0.7(w+1.2)=2.1 (1 point) Responses -0.9 -0.9 1.8 1.8 4.2 4.2 0.9
2 answers
39 views
Solve for s. −30(s−10)=−180 (1 point) Responses s = 16 s = 16 s = -4 s = -4 s = 50 s = 50 s = 70 s = 70
2 answers
28 views
Half the sum of a number and 10 is 8. Find the number.(1 point) Responses 3 3 6 6 2 2 -2
2 answers
60 views
Which equation corresponds to the following problem? (1 point) Responses 8(2n+6)=104 8 times open paren 2 n plus 6 close paren
2 answers
64 views
Consider this equation: 4(3x−2)=−24 Part 1. What is your first step in solving this equation? Remember, there is more than
2 answers
44 views
Mr. Spears was purchasing supplies for his math classroom. He had $25 to spend. Mechanical pencils and erasers come in bundles
3 answers
100 views
Ethan had 7 of his friends over. He ordered cheese pizzas and mozzarella sticks for the 8 of them. In all, there were 64 pieces
2 answers
155 views
Molly has 6 grandchildren. She likes to be fair and buy gifts for all of them at the same time. She found jigsaw puzzles, each
2 answers
199 views
Stan took Lily to his friend’s restaurant on a date. The friend told the waiter to remove the $12 dessert from Stan’s bill.
2 answers
81 views
Mr. Spears was purchasing supplies for his math classroom. He had $25 to spend. Mechanical pencils and erasers come in bundles
2 answers
46 views
When solving the equation −1/2(x+10)=−3 , identify the operation that should be done first.(1 point)
1 answer
801 views
Three adult and three child movie tickets were purchased for $75. The cost of each child ticket is $3 less than the cost of an
1 answer
38 views
Three adult and three child movie tickets were purchased for $75. The cost of each child ticket is $3 less than the cost of an
1 answer
29 views
Three adult and three child movie tickets were purchased for $75. The cost of each child ticket is $3 less than the cost of an
1 answer
131 views
Read the following passage from page 201: "There is something triumphant about a really disgusting meal. It lingers in the
1 answer
35 views
What is Richard's explanation for why the dish his Scottish friend served was so bad? (1 point) Responses He says it was a mean
1 answer
73 views
Read the following passage from page 201: "There is something triumphant about a really disgusting meal. It lingers in the
1 answer
43 views
Simplify the expression. (6x−10)−(2x+12)
1 answer
20 views
Jenny bought 6 cookies and 6 cupcakes at the bakery. The cookies were $1.50 each, but she cannot remember how much each cupcake
1 answer
75 views
What is the first step in solving the equation 3=6y+9 (1 point) Responses Divide both sides by 3. Divide both sides by 3.
1 answer
31 views
Simplify the expression. 2(3x+4)−3(2x−2)+8(x−5)
1 answer
18 views
Write an equation and solve: Four times a number, decreased by 4 is 8.(1 point)
1 answer
42 views
Solve for x. −5x+2=67 (1 point) Responses x=−3/5 5 x=−69/5 x=−13 x=13
1 answer
20 views
Solve for x. −5x+2=67
1 answer
19 views
r/5−6=−1 solve for r
1 answer
19 views
Simplify the expression. (2x+2)−(3x+11)
1 answer
23 views
simplify the expression. (2x+2)−(3x+11) (1 point) Responses 5x−9 5 x minus 9 −x−9 negative x minus 9 −x−13 negative
1 answer
80 views
What is the first step in solving the equation: 20=6x−4 (1 point) Responses Subtract 4 from both sides Subtract 4 from both
1 answer
48 views
Question Simplify the expression. 6(3x−5)+2(3x−5)−8(2x−5) (1 point) Responses 8x 8 x 24x−40 24 x minus 40 36x−60 36
1 answer
60 views
Question Simplify the expression. 6(3x−5)+2(3x−5)−8(2x−5) (1 point) Responses 8x 8 x 24x−40 24 x minus 40 36x−60 36
1 answer
44 views
Write an equation and solve for the unknown number. Twice a number, increased by 3 is 7.
1 answer
42 views
In Atlanta, the temperature was −2 °F in the morning in the winter. There was a winter storm, and the temperature dropped 10
1 answer
41 views
Shawn is solving the equation x7−47=−6 One of his steps is to multiply both sides of the equation by 7. Why? (1 point)
1 answer
45 views
A mountain climber starts a climb at an elevation of 380 ft. above sea level. At his first rest stop he has climbed 182 ft., and
1 answer
50 views
Tickets to the baseball game are on sale for $1.50 off the regular price. Dea buys 6 tickets. If her total cost is $51, how much
1 answer
104 views
Which situation is best represented by the following equation? 12h+30=258 (1 point) Responses Eric was paid $30 last week. He
1 answer
61 views
Solve for x. 1/3(6x−9)=−33
1 answer
21 views
Question Solve for x. 13(6x−9)=−33 (1 point) Responses x = -30 x = -30 x = -15 x = -15 x = -22 x = -22 x = -19
1 answer
22 views
Question Solve for x. 1/3(6x−9)=−33 (1 point) Responses x = -30 x = -30 x = -15 x = -15 x = -22 x = -22 x = -19
1 answer
21 views
Solve for x. −3/5(15x−30)=198 (1 point) Responses
1 answer
30 views
Solve for x. 3(4x−12)=84
1 answer
18 views
Solve for x. 20(2x−8)=440
1 answer
32 views
Solve for x. 0.72=0.4(x+1.4) (1 point)
1 answer
19 views
Solve for x. 0.72=0.4(x+1.4) (1 point) Responses x = -1.4 x = -1.4 x = 0.27 x = 0.27 x = 1.2 x = 1.2 x = 0.4
1 answer
25 views
Solve for x. 14x−3x+11=−22
1 answer
19 views
Solve for x. 9x+9x−21=33
1 answer
21 views
Solve for x. 5x−2x+4=−5 (1 point) Responses x = -1 x = -1 x = 5 x = 5 x = -3 x = -3 x = 3
1 answer
28 views
Solve for x. 2(1.5x−7)=6
1 answer
24 views
Solve for x. 0.72=0.4(x+1.4)
1 answer
20 views
Question Which ratio is equivalent to 5/4? 20/30 24/30 30/20 30/24
1 answer
31 views
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