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Post New Question
All Questions
+0
234771 Questions
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341
1
help pls!!
A classmate read 99 pages in 3 days. Find the unit rate.
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Guest
Feb 18, 2021
0
397
1
complex number
If z is a complex number satisfying z+(1/z)=1, calculate z^2+ (1/z^2).
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Guest
Feb 18, 2021
0
707
1
Help please! Thank you!
You connect the points (0, 0) and (9, 6) with a line segment. Starting at (0, 0), you move $\frac{1}{3}$ of the way along the segment. What is the sum of the coordinates of the point you land upon?
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Guest
Feb 18, 2021
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303
1
HEEEELP
each term in the sequence that begins 13, 9, 18, ... is the sum of three times the tens digit and two times the unit digit of the previous term. What is the greatest value of any term in this sequence?
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Guest
Feb 18, 2021
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280
1
algebra
For what value of x will (3 + x)/(5 + x) and (1 - x)/(2 + x) be equal?
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Guest
Feb 18, 2021
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386
2
counting
A state requires that all boat licenses consist of the letter A or M or P or S followed by any five digits. What is the number of groups of letters and numbers available for boat licenses?
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Guest
Feb 18, 2021
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372
1
HELP FAST!!!
The size of a rectangular television set is the length of one of the diagonals of its screen.
The angle formed by the diagonal of a 42-inch rectangular television set and its width is 28°.
What is the length of the television screen?
read more ..
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Guest
Feb 18, 2021
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436
1
counting
Using the letters A and B, the following two-letter code words can be formed: AA, AB, BB, BA. Using the letters A, B, and C and D, how many different four-letter code words can be formed?
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Guest
Feb 18, 2021
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317
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+17
determine of principal
Today Brianna has $7424.83 in her bank account. For the last two years, her account has paid 6%/a, compounded monthly. Before then, her account paid 6%/a compounded semi-annually, for four years. If she made only one deposit six years ago, determine the
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frosttyfrog
Feb 18, 2021
0
256
0
Fast! Prove the Pythagorean identity
Prove the Pythagorean identity.
Drag and drop the correct expression or equation into the boxes to complete the proof.
read more ..
Guest
Feb 18, 2021
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300
0
What do i do?
Barry bought a boat two years ago and at the time paid a down payment of $10 000 cash. Today he must make the second and final payment of $7500, which includes the interest charge on the balance owing. Barry financed this purchase at 6.2%/a, compounded
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Guest
Feb 18, 2021
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365
1
Help!!
On the day his son is born, Mike wishes to invest a single sum of money that will grow to $10 000 when his son turns 21. If Mike invests the money at 4%/a, compounded semi-annually, how much must he invest today?
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Guest
Feb 18, 2021
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419
1
what is the ammount of interest earned + present value
an investment that will be worth $128 500 in 8 years. The interest rate is 6.5%/a, compounded semi-annually.
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Guest
Feb 18, 2021
0
617
3
+108
Find all solutions to
Find all solutions to
ab+2a+2b=-16
ac+2a+2c=26
bc+2b+2c=-14
read more ..
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whatdoiputhere
Feb 18, 2021
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360
0
line transformation
The line y = 2x - 4 is dilated by a scale factor of and 3/2 centered at the origin. What is the equation of the line after the dilation?
Guest
Feb 18, 2021
+1
374
1
+5
help need answers
is a stockbroker. earns % commission each week. Last week, sold $ worth of stocks. How much did make last week in commission? If averages that same amount each week, how much did make in commission in 2011?
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trimcfadden8870
Feb 18, 2021
-1
427
2
quadratic
Solve x^2 - 7ix - 12 = 0.
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Guest
Feb 18, 2021
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528
3
how to solve
To pass a course with a B grade, a student must have an average of 80 or greater. A student’s grades on three tests are 73, 86, and 78. Find what score the student must get on the next test to get a B average or better. What grade must the student get?
read more ..
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Guest
Feb 18, 2021
-1
425
2
+230
Hey besties need help XD
For all complex numbers $z$, let
\[f(z) = \left\{
\begin{array}{cl}
z^{2}&\text{ if }z\text{ is not real}, \\
-z^2 &\text{ if }z\text{ is real}.
\end{array} <#> \right.\]
Find $f(f(f(f(1+i))))$
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wizzymath
Feb 18, 2021
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416
1
geometry
Find the value of x, y, and z.
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Guest
Feb 18, 2021
0
530
1
Joe spent 15.75 on 21 pieces of fruit to make a salad
Joe spent $\$15.75$ on 21 pieces of fruit to make a salad.Bananas cost $\$.50$ each, oranges cost $\$.75$ each, and papayas cost $\$1.25$ each. Joe used twice as many oranges as bananas. How many of each fruit did he buy?
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Guest
Feb 18, 2021
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591
1
ive never got a question answered so please answer
Let be a complex number such that Find all possible values of Enter your answer as an interval.
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Guest
Feb 18, 2021
-1
1918
1
+1678
polygon
The sum of interior angles of a regular polygon is 540 degrees. Find the measure of each interior angle of the polygon.
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wiseowl
Feb 18, 2021
0
267
0
Vector please help!
Let {~x, ~y, ~z} be a linearly independent set of vectors. Let ~w1= ~z−2~x. Determine whether the set of vectors{~x, ~y, ~z, ~w1}is linearly independent or linearly dependent. (~means vector)
Guest
Feb 18, 2021
0
2156
1
1/4 divided by 2/3 Answer in simplest form
1/4 divided by 2/3 Answer in simplest form
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Guest
Feb 18, 2021
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