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natta225 [31]
2 years ago
9

Pls Answer ..........

Mathematics
1 answer:
GuDViN [60]2 years ago
4 0

Answer: The correct answer would be C

Step-by-step explanation: as the term number increases, the number of stars icreases by two. using this information, term ten would have 21 which is less than 30

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the area of a rectangular field is x^2-x-72 m^2. The length of the field is x+8 cm. What is the width of the field meters.
Gre4nikov [31]
Hello,


A(x)=x²-x-72 (m²)
L=(x+8) (cm)= (x+8)/100 (m)

We suppose here x≠-8
(in reality x²-x-72>0 ==>x<-8 or x>9
but x+8>0 ==> x>-8
 then
only x>9 are solutions)

W=A(x)/ ((x+8)/100 )=100*(x²-x-72)/(x+8)= 100*(x-9)(x+8)/(x+8)=100*(x-9)

5 0
2 years ago
If 4x^2 - 100 = 0, the roots of the equation are
ololo11 [35]
4x^2-100=0 \ \ \ \ \ \ |+100 \\&#10;4x^2=100 \ \ \ \ \ \ \ \ \ \ \  |\div 4 \\&#10;x^2=25 \\&#10;x=\pm \sqrt{25} \\&#10;x=\pm 5 \\&#10;x=-5 \hbox{ or } x=5

The answer is (3) -5 and 5.
5 0
3 years ago
A box contains 6 red balls, 7 green balls and 5 blue balls. each ball is of different size. the probability that the red ball se
Strike441 [17]
6/18 good luck!!!!!!!!!!!!!!!!!!!
6 0
3 years ago
Waves with an amplitude of 2 feet pass a dock every 30 seconds. Write an equation for a cosine function to model the height of a
kolbaska11 [484]

Answer:

The cosine function to model the height of a water particle above and below the mean water line is h = 2·cos((π/30)·t)

Step-by-step explanation:

The cosine function equation is given as follows h = d + a·cos(b(x - c))

Where:

\left | a \right | = Amplitude

2·π/b = The period

c = The phase shift

d = The vertical shift

h = Height of the function

x = The time duration of motion of the wave, t

The given data are;

The amplitude \left | a \right | = 2 feet

Time for the wave to pass the dock

The number of times the wave passes a point in each cycle = 2 times

Therefore;

The time for each complete cycle = 2 × 30 seconds  = 60 seconds

The time for each complete cycle = Period = 2·π/b = 60

b = π/30 =

Taking the phase shift as zero, (moving wave) and the vertical shift as zero (movement about the mean water line), we have

h = 0 + 2·cos(π/30(t - 0)) = 2·cos((π/30)·t)

The cosine function is h = 2·cos((π/30)·t).

4 0
3 years ago
What's the pattern of 160,80,40,20,10​
Brrunno [24]
The pattern is that each number is decreasing by half
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3 years ago
Read 2 more answers
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