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Post New Question
All Questions
+0
229743 Questions
0
351
2
Complex Numbers
The complex numbers and satisfy and
(a) Prove that and
(b) Prove that is a real number.
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Guest
Mar 26, 2021
Mar 25, 2021
+1
757
1
A certain right triangle with integer side lengths has perimeter 72. What is its area?
A certain right triangle with integer side lengths has perimeter . What is its area?
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Guest
Mar 25, 2021
+1
385
1
Help
At a party at the middle school over on Third Avenue next to the bank, 60% of the students are seventh graders. These students are joined by 20 more eighth graders, all of whom like to dance. The party is now 58% seventh graders. How many students are now
read more ..
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Guest
Mar 25, 2021
0
456
2
+505
Help pls
Find the number of positive integers n so that . Btw, it's not 5
MobiusLoops
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MobiusLoops
Mar 25, 2021
0
404
2
solid geometry
Find the surface area and volume of the figure above. Round to the nearest tenth if needed.
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Guest
Mar 25, 2021
+1
645
1
help pls
Jose and Caroline are shopping for school supplies. Caroline spent 15.50 on 5 notebooks and 3 folders. Jose bought 4 notebooks and 4 folders and spent 14.00. What is the cost of one notebook and one folder?
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Guest
Mar 25, 2021
0
381
1
analytic geometry
The equation of line s is x + 8y = –8 . Parallel to line s is line t , which passes through the point (5, –1) . What is the equation of line t ?
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Guest
Mar 25, 2021
0
363
1
Algebra
if (x^2 -x-2) is a factor of f(x)=2x^3 -2ax^2 +3bx-4, what will a+b equal to?
textot
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Guest
Mar 25, 2021
+1
457
1
Tell whether s=79 is a solution to s−68=11. yes or no
Tell whether s=79s=79 is a solution to s−68=11s−68=11.
yes
no
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Guest
Mar 25, 2021
+1
371
1
+69
Help
Let
What is k(x) if f(x) is its own inverse.
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Feezbio201902
Mar 25, 2021
0
361
1
triangle question
What are the possible values of x?
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Guest
Mar 25, 2021
0
503
2
+6
Help!
if 5x-2y=7
3x+y=2
compute 24x-14y
read more ..
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Applepie66
Mar 25, 2021
0
349
1
geometry
Solve for the variable and the indicated lengths. Round to the nearest tenth if necessary.
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Guest
Mar 25, 2021
+1
397
1
+490
Trig help?
trig is new to me
thanks in advance :D
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Elijah
Mar 25, 2021
+1
360
1
Help need now (please make visual
One interior angle of a rhombus is 150. The area of the rhombus is 50 square meters. What is the perimeter of the rhombus in meters?
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Guest
Mar 25, 2021
0
291
1
quadrilaterals
Suppose that $ABCD$ is a trapezoid in which $\overline{AD}|| \overline{BC}$. Given $\overline{AC}\perp\overline{CD}$, $\overline{AC}$ bisects angle $\angle BAD$, and $[ABCD]=30$, then compute $[\triangle ACD]$.
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Guest
Mar 25, 2021
0
331
2
quadrilaterals
In the diagram, $PQRS$ is a trapezoid with an area of $32.$ $RS$ is twice the length of $PQ.$ What is the area of $\triangle PQS?$
read more ..
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Guest
Mar 25, 2021
0
485
1
Functions! Please help ASAP
Here is the question i was given.
If y is a function of x, which of the following cannot be true?
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Guest
Mar 25, 2021
+1
1264
1
Angle Relationships with Circles (plz I need help)
You are flying in a hot air balloon about 1.2 miles above the ground. Find the measure of the arc that represents the part of Earth you can see. Round your answer to the nearest tenth. (The radius of Earth is about 4000 miles)
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Guest
Mar 25, 2021
+1
1048
2
I can't get these percentage questions right
Winston grows green dragon apples. This year, he shipped of these apples to sell at supermarkets and kept the rest to make cider. Of all the green dragon apples he sold to the supermarkets, only of them were bought. If a total of green dragon apples were
read more ..
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Guest
Mar 25, 2021
+1
398
1
help
Bottle X contains 10% acid and bottle Y contains 20% acid. In what ratio, of the quantity of bottle X to the quantity of bottle Y, do I need to mix the liquid from the two bottles if I want to create a mixture that is 16% acid?
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Guest
Mar 25, 2021
+1
238
1
geometry
The field shown has been planted uniformly with wheat. At harvest, the wheat at any point in the field is brought to the nearest point on the field's perimeter. What is the fraction of the crop that is brought to the longest side?
read more ..
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Guest
Mar 25, 2021
+1
352
3
arcs in circles
Determine the measure of the indicates angle or arc.
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Guest
Mar 25, 2021
+1
476
1
circles
Examine the circle below. The circle with center F is divided into sectors. In circle F, EB is a diameter. The radius of circle F is 4 units. What is the angle measure of the arc EFD?
read more ..
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Guest
Mar 25, 2021
+1
536
1
+409
You are given the task of making an open-topped box out of a single sheet of cardboard.
You are given the task of making an open-topped box out of a single sheet of cardboard.
The cardboard is a 20 inch by 30 inch rectangle. You build the box by cutting out squares in the four corners of the sheet, then folding up along the pink lines
read more ..
CPhill
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liz54321
Mar 25, 2021
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