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Post New Question
All Questions
+0
229704 Questions
+1
1913
2
+105
Math question, please help me?
What is the recursive rule for the sequence?
−7.4, −21.2, −35, −48.8, −62.6, ...
A) an = an+1 − 13.8, where a1 = −7.4
B) an = an−1 + 13.8, where a1 = −7.4
C) an = an+1 + 13.8, where a1 = −7.4
D) an = an−1 − 13.8, where
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Jaleco
Mar 14, 2018
0
767
5
+4609
Hard problem?
Let equal the sum of the digits of positive integer . For example, . For a particular positive integer , . Which of the following could be the value of ?
I'm getting 1239 as an answer.
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tertre
Mar 14, 2018
0
1605
3
the power per square metre is 400µW/m2.
At 100m from the antenna of a cellular base station in open country, measurements show that the power per square metre is 400µW/m2. What power per square metre could be expected at 200m from the base station? Show your working and explain any assumptions
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Guest
Mar 14, 2018
+2
6
2175
9
+132
Maths Olympiad Question (Please help ASAP)
What is the remainder when 1^3 + 2^3 +3^3 + ...+100^3 is divided by 7?
a)1 b)2 c)3
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Jeffreymars16
Mar 14, 2018
0
487
0
Circle Question
Circle 1: center (8,5) and radius 6
Circle 2: center (-2, 1) and radius 2
What transformations can be applied to Circle 1 to prove that the circles are similar?
What scale factor does the dilation from circle 1 to circle 2 have?
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Guest
Mar 14, 2018
0
5693
1
Quick Math Question.
1.
The table shows values for functions f(x) and g(x) .
x f(x) g(x) 1 1 3 3 −9 −9 5 0 −2 7 2 2 9 12 9 11 11 1 What are the known solutions to f(x)=g(x) ?
Select each correct
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Guest
Mar 14, 2018
0
635
1
https://web2.0calc.com/questions/graphing_9
https://web2.0calc.com/questions/graphing_9
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Guest
Mar 14, 2018
+1
790
1
+166
Graphing
Graph the following inequalities on the same number line
B<4
B>-10
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MrPatel
Mar 14, 2018
0
654
1
question
A square $DEFG$ varies inside equilateral triangle $ABC,$ so that $E$ always lies on side $\overline{AB},$ $F$ always lies on side $\overline{BC},$ and $G$ always lies on side $\overline{AC}.$ The point $D$ starts on side $\overline{AB},$ and ends on side
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Guest
Mar 14, 2018
Mar 13, 2018
0
932
2
+37
Physical Science
A reflecting, spherical Christmas tree ornament has a diameter of 7.0 cm. A child looks at the ornament from a distance of 16 cm.
Where is the image located?
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cmoore
Mar 13, 2018
0
1937
1
+31
Derivatives from tangent lines
Suppose the line tangent to the graph of f at x = 2 is y = 4x + 1 and suppose the line tangent to the graph of g at x = 2 has slope 3 and passes through (0, -2). Find an equation of the line tangent to the following curves at x = 2.
a. y = f(x) + g(x)
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StayCurly
Mar 13, 2018
0
970
1
+31
Derivative question
Let
a) Find all points on the graph of f at which the tangent line is horizontal
b) Find all points on the graph of f at which the tangent line has slope -1/2
I kinda understood how the first one worked, but the second question threw
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StayCurly
Mar 13, 2018
0
705
3
+122
Geometry
https://prnt.sc/iqst3m
https://prnt.sc/iqst76
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Severoth
Mar 13, 2018
+2
2632
1
+593
Suppose the times to cook meat on a grill are normally distributed with a mean of 23 minutes and a standard deviation of 1.9 minutes.
Suppose the times to cook meat on a grill are normally distributed with a mean of 23 minutes and a standard deviation of 1.9 minutes.
What is the difference in times between grilled meat that has a z-score of 2 and another meat that has a z-score
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jbouyer
Mar 13, 2018
0
513
2
You have the choice of logging on at one of two Internet cafés. Their posted rates are as follows: Log-On Café: $5.50 plus $0.15 for every
A:Log-On Café, the equation is C = $0.15M + $5.50, and I'll save $0.75
B:Log-On Café, the equation is C = $0.55M + $1.50, and I'll save $6.25
C:eCafé, the equation is C = $0.20M + $4.00, and I'll save $0.75
D:eCafé, the equation
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Guest
Mar 13, 2018
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