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Post New Question
All Questions
+0
234804 Questions
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366
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Trig equation
find all real numbers in the [0 2pi) that satisfy each equation round approximate to the nearest tenth
2cos^2(x)+cos(x)-1=0
4sin^2(x)-5sin(x)+1=0
thanks
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Guest
Apr 6, 2020
-1
504
1
+384
perimeter
A room is 19 feet long and 11 feet wide. Find the ratio of the length of the room to its perimeter. Express your answer in the form $a:b$.
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Paresh
Apr 6, 2020
-1
749
2
+384
simple percents
A class of 40 children is 60$\%$ boys. At least how many boys would have to be replaced by girls to make a majority of the class girls?
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Paresh
Apr 6, 2020
-1
1176
3
+384
integer square roots
Three positive integers $a,$ $b,$ and $x$ form an O'Hara triple $(a,b,x)$ if $$ For example, $(1,4,3)$ is an O'Hara triple because is an O'Hara triple, determine the value of $x.$
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Paresh
Apr 6, 2020
-4
1991
7
+384
Length and Perimeter
The figure shows a square of side $y$ units divided into a square of side $x$ units and four congruent rectangles. What is the perimeter, in units, of one of the four congruent rectangles? Express your answer in terms of $y$.
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Paresh
Apr 6, 2020
-1
632
1
HELP AREA
Sandy's daughter has a playhouse in the back yard. She plans to cover the one shaded exterior wall and the two rectangular faces of the roof, also shaded, with a special siding to resist the elements. The siding is sold only in 8-foot by 12-foot sections
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Guest
Apr 6, 2020
0
603
1
HELP CIRCLES
The radius of a circle is 2 inches. When the radius is doubled, by how many square inches is the area increased? Express your answer in terms of $\pi$.
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Guest
Apr 6, 2020
0
635
1
Modular Arithmetic Question
Kirsty needs to hire a plumber to fix her house. The plumber charges 242 (base 5) dollars for every hour of labor and 367 (base 8) dollars for equipment. If the plumber works for 3.5 (base 10) hours, how many dollars (in base ten) will Kirsty owe the plumber?
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Guest
Apr 6, 2020
-2
512
1
+384
:(((((
wow cphil has not been online all of today wow im sadd
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Paresh
Apr 6, 2020
0
570
1
please help
John can jog twice as fast as he can walk. He was able to jog the first 5 miles to his grandmother's house, but then he tired and walked the remaining 3 miles. If the total trip took 1.1 hours, then what was his average jogging speed?
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Guest
Apr 6, 2020
0
536
2
help
A fruit company delivers it’s fruit and two types of boxes large and small delivery of five large boxes and six more boxes has a total weight of 175 kg a delivery of three large boxes and two small boxes has a total weight of 83 kg how much does each type
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Guest
Apr 6, 2020
0
1078
2
Help!-Venn Diagrams
There are 30 people in my math class. 12 of them have cool dads, 15 of them have cool moms, and 9 of them have cool dads and cool moms. How many people have moms and dads who are both uncool?
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Guest
Apr 6, 2020
0
761
1
please help
A party rental company has chairs and tables for rent. The total cost to rent 2 chairs and 5 tables is $45. The total cost to rent 8 chairs and 3 tables is $44. What is the cost to rent each chair and each table?
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Guest
Apr 6, 2020
-1
1049
1
+422
Just a hint
On Monday, I worked t-6 hours and earned 2t-5 dollars per hour. My friend Andrew worked 2t-8 hours but only earned t-5 dollars an hour. As it turns out, we earned the same amount. What is the value of t?
I thought of subtracting
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AltShaka
Apr 6, 2020
Apr 5, 2020
0
522
1
A gourmet shop owner mixes coffee worth $1.92 per pound with coffee worth $2.72 to make a blend that will sell at $2.24 per pound . If she m
A gourmet shop owner mixes coffee worth $1.92 per pound with coffee worth $2.72 to make a blend that will sell at $2.24 per pound . If she makes 30 pounds of the blend , how many pounds of each coffee did she use?
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Guest
Apr 5, 2020
0
495
1
help
The sum of a 2-digit number and the 2-digit number when the digits are reversed is 77. If the difference of the same two numbers is 45, what are the two 2-digit numbers?
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Guest
Apr 5, 2020
0
710
2
+273
HELP PLZ
What is the largest two-digit number that is divisible by both of its digits, and the digits are distinct?
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qwertyuiopasdfghjkl
Apr 5, 2020
0
487
1
help
You invest $7500 into a mutual fund that is expected to earn 7% per year. How long will it take the fund to be worth $15,000?
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Guest
Apr 5, 2020
0
835
1
+273
HELP PLZ ASAP
Pizzas are sized by diameter. What percent increase in area results if Chantel's pizza increases from a 10-inch pizza to a 12-inch pizza?
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qwertyuiopasdfghjkl
Apr 5, 2020
0
636
1
+448
Iroc and Aroc question
A diver at the top of a 10-meter high platform, preparing to perform a dive. The diver's height above the water, in meters, at t seconds can be modelled by the equation: H(t)=10+2t-4.9t^2
1)Determine the height of the diver one second
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bioplant
Apr 5, 2020
0
511
2
+273
Help, anybody, ASAP PLZ
When three positive integers are divided by , the remainders are and respectively.
When the sum of the three integers is divided by , what is the remainder?
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qwertyuiopasdfghjkl
Apr 5, 2020
-2
566
3
Help ASAP plz!!!
1.)
Chords AB and CD of a circle are perpendicular, and meet at P. If AP = 3, BP = 4, DP = 2, and CP = 6, then find the diameter of the circle.
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Guest
Apr 5, 2020
0
569
2
numbers
Find two consecutive numbers less than 100, for the first of which the sum of the digits is 8, and the second is divisible by 8.
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Guest
Apr 5, 2020
0
767
1
help
30% of the library books in the fiction section are worn and needs replacement.10% of the nonfiction holding are worn.the library’s holdings are 60% fiction and 40% nonfiction.find the probability that a book chosen at random from this library’s is worn
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Guest
Apr 5, 2020
-2
371
2
few geometry questions
1. In the diagram below, is tangent at to the circle with center , point is inside the circle, and intersects the circle at . If , , and , then find the radius
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Guest
Apr 5, 2020
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