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LUCKY_DIMON [66]
2 years ago
10

30 points! This table shows how long it took five students to complete their science projects.

Mathematics
1 answer:
torisob [31]2 years ago
8 0

Answer:

the mean

Step-by-step explanation:

mean is calculated average

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Select the correct ratios.
Goshia [24]
65:100 because there are 65 girls and then 65 girls + 35 boys = 100 total students
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2 years ago
Given sinθ=- 3/5 and cscθ=-5/3 in quadrant III, find the value of other trigonometric functions using a Pythagorean Identity. Sh
Yakvenalex [24]
Let ABC be a triangle in the 3rd quadrant, right-angled at B. 
 So, AB-> Perpendicular BC -> Base AC -> Hypotenuse. 
Given: sinθ=-3/5 cosecθ=-5/3 
 According to Pythagorean theorem, square of the hypotenuse is equal to the sum of square of the other two sides.
 Therefore in triangle ABC, 〖AC〗^2=〖AB〗^2+〖BC〗^2 ------
--(1)
 Since sinθ=Perpendicular/Hypotenuse ,
 AC=5 and AB=3
 Substituting these values in equation (1)
 
〖BC〗^2=〖AC〗^2-〖AB〗^2

 ă€–BC〗^2=5^2-3^2
 

 ă€–BC〗^2=25-9

 ă€–BC〗^2=16

 BC=4 units

 Since the triangle is in the 3rd quadrant, all trigonometric ratios, except tan
and cot are negative.
 So,cosθ=Base/Hypotenuse Cosθ=-4/5 
 secθ=Hypotnuse/Base secθ=-5/4 
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4 0
3 years ago
The formula that describes an object's motion is given by S=ut+1/2at^2 , where S is the distance traveled, u is the initial velo
RSB [31]
S = ut + (1/2)a(t²)                            Subtract ut from both sides
(1/2)a(t²) = S - ut                            Multiply both sides by 2
a(t²) = 2s - 2ut                                Divide both sides by t²
a= 2s/t² - 2u/t

a= (2S - 2ut)/t²

Answer is C) but there should be parentheses around the term (2S-2ut)
5 0
3 years ago
Click here !!! help me solve this problem !!!!
sergeinik [125]
Y=x^3+4 because if you mulitiply x 3 times and then add it by 4 then you should get y
7 0
3 years ago
Read 2 more answers
(x-4)(3x + 1)<br> Demen respuesta
Sveta_85 [38]

Answer:

3x^2 - 11x - 4

Step-by-step explanation:

( x - 4 ) ( 3x + 1 )

= 3x^2 + x - 12x - 4

= 3x^2 - 11x - 4

<u><em>Hope this helps :)</em></u>

6 0
3 years ago
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