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Post New Question
All Questions
+0
230605 Questions
+1
1
7953
5
+524
help?
Right triangle ABC has its right angle at C.
AC=5 and BC=12.
Which trigonometric ratios are correct?
Select each correct answer. sin A =5/13 cos A =5/13 sin B =5/13 tan A =12/5
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adore.nuk
Feb 28, 2018
0
717
3
+122
Geometry Questions
https://prnt.sc/il3nkg
https://prnt.sc/il3nn7
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Severoth
Feb 28, 2018
+1
580
1
+524
help?
Solve for r.
f / r2 + a = n + k
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adore.nuk
Feb 28, 2018
0
3063
2
+524
help?
The population of bacteria in a petri dish doubles every 40 seconds. The population of the bacteria is initially 400 organisms.
What unit is most appropriate for the time at which the number of bacteria is 300?
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adore.nuk
Feb 28, 2018
+2
620
4
+1495
Help!!
Help!!
what is the Quadratic Formula?
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ManuelBautista2019
Feb 28, 2018
0
1043
4
+524
help?
What is the measure of the central angle of a circle with radius 60 centimeters that intercepts a 15π centimeters arc?
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adore.nuk
Feb 28, 2018
0
633
1
+122
Geometry help please
https://prnt.sc/il3faq
https://prnt.sc/il3g6a
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Severoth
Feb 28, 2018
-1
606
1
+2448
2 q's
First one: Maybe a or d
Second one: C
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RainbowPanda
Feb 28, 2018
0
571
1
+2448
A right triangle PQR is given....
How am I supposed to figure out R??
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RainbowPanda
Feb 28, 2018
+1
4615
1
+593
The number of people that enter a contest the first day is 27. 31 people enter the second day and 35 enter on the third day. This pattern
The number of people that enter a contest the first day is 27. 31 people enter the second day and 35 enter on the third day. This pattern continues and the contest lasts 14 days.
What is the total number of people that enter
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jbouyer
Feb 28, 2018
0
602
1
+524
help?
What is the simplest radical form of the expression?
(x4y7)2/3
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adore.nuk
Feb 28, 2018
0
611
1
+2448
2 questions
For the first one, is it 10 or 5?
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RainbowPanda
Feb 28, 2018
0
2866
1
+2448
In Triangle PQR, m< R=90 degrees. Which ratio represents the cosine of Angle Q
A) PR/QR
B) QR/PR
C) PR/PQ
D) QR/PQ
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RainbowPanda
Feb 28, 2018
0
738
2
+2448
Which of the following lengths below could be used to make a right triangle?
A) 14, 19, 26
B) 15, 20, 25
C) 17, 19, 21
D) 8, 11, 14
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RainbowPanda
Feb 28, 2018
0
410
1
Help asap
For what values of $x$ is $x^2-2x>35$? Express your answer in interval notation.
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Guest
Feb 28, 2018
0
1307
4
+168
An architect created plans for a house using a scale factor of 1:161:16 . In the plans, the floor of the house has an area of 7 square feet.
An architect created plans for a house using a scale factor of 1:161:16 . In the plans, the floor of the house has an area of 7 square feet.
What is area of the floor in the actual house?
Enter your answer in the box.
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Jazminfun0128182
Feb 28, 2018
0
2138
1
+168
A rectangular field has a diagonal of 360 feet. One of the side of the field is 160 feet long.
A rectangular field has a diagonal of 360 feet. One of the side of the field is 160 feet long.
What is the perimeter of the field?
Enter your answer, rounded to the nearest hundredth, in the box.
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Jazminfun0128182
Feb 28, 2018
0
1404
0
+168
DEF is similar to JKL .
△DEF is similar to △JKL .
In addition, m∠F=90° and m∠K=5(m∠D) .
What is m∠D ?
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Jazminfun0128182
Feb 28, 2018
0
1647
1
+168
ABC∼DEFABC∼DEF , ABCABC has a height of 6 meters, and DEFDEF has a height of 10 meters.
△ABC∼△DEF△ABC∼△DEF , △ABC△ABC has a height of 6 meters, and △DEF△DEF has a height of 10 meters.
What is the ratio of the area of △ABC△ABC to the area of △DEF△DEF ?
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Jazminfun0128182
Feb 28, 2018
0
2103
1
+168
A right triangle has legs that are 15 feet and 25 feet long.
A right triangle has legs that are 15 feet and 25 feet long.
What is the length of the hypotenuse?
Enter your answer as a decimal in the box. Round your answer to the nearest hundredth.
ft
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Jazminfun0128182
Feb 28, 2018
0
1713
1
+168
A rectangle has a length of 4 centimeters and a width of 7 centimeters.
A rectangle has a length of 4 centimeters and a width of 7 centimeters.
What is the effect on the perimeter when the dimensions are multiplied by 5?
The perimeter is increased by a factor of 5.
The perimeter is increased by a factor
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Jazminfun0128182
Feb 28, 2018
0
2757
1
+168
This figure is made up of a triangle and a semicircle.
This figure is made up of a triangle and a semicircle.
What is the area of this figure?
Use 3.14 for pi. Round only your final answer to the nearest tenth.
Enter your answer, as a decimal, in the box.
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Jazminfun0128182
Feb 28, 2018
0
2539
1
+168
The volume of a cylinder is 441π cubic centimeters and its radius is 7 centimeters.
The volume of a cylinder is 441π cubic centimeters and its radius is 7 centimeters.
What is the height of the cylinder?
Enter your answer in the box.
cm
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Jazminfun0128182
Feb 28, 2018
0
6567
1
+168
What is the definition of a circle?
What is the definition of a circle?
A circle is the set of all points in a plane that are the same distance from a fixed point called the center.
A circle is a set of all points that are the same distance form a fixed point called the center.
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Jazminfun0128182
Feb 28, 2018
0
2739
1
+168
Which theorem or postulate proves that ABC and DEF are similar?
Which theorem or postulate proves that △ABC and △DEF are similar?
Drag and drop the correct postulate or theorem into the box to correctly complete the statement.
The two triangles are similar
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Jazminfun0128182
Feb 28, 2018
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