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Ivenika [448]
2 years ago
11

13) (3 + 7v2)(3 – 7v2)

Mathematics
1 answer:
Dovator [93]2 years ago
8 0

Answer:

the answer to this problem is

9 - 21v^2 + 21v^2 - 49v^4

9 - 49v^4

Step-by-step explanation:

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Mike just hopped on the edge of a merry-go-round. What are his linear and angular speeds if the diameter of the merry-go-round i
dsp73

Step-by-step explanation:

Given that,

The diameter of the merry-go-round, d = 14 feet

Time taken, t = 6 seconds

Radius, r = 7 feet

The linear speed of the merry-go-round is given by :

v=\dfrac{2\pi r}{t}\\\\v=\dfrac{2\pi \times 7}{6}\\\\=7.33\ m/s

Also,

v=r\omega

Where

\omega is the angular speed

So,

\omega=\dfrac{v}{r}\\\\\omega=\dfrac{7.33}{7}\\\\=1.04\ rad/s

Hence, his linear and angular speeds are 7.33 m/s and 1.04 rad/s.

8 0
3 years ago
URGENT PLS HELP MAX POINTS
bija089 [108]

Answer:

-103

243

Step-by-step explanation:

(q•r)(5) = q(r(5))

r(5) = 2(5²) + 1 = 51

q(51) = -2(51) - 1 = -103

(r•q)(5) = r(q(5))

q(5) = -2(5) - 1 = -11

r(-11) = 2(-11)² + 1 = 243

6 0
3 years ago
More than half of the students were excited about the project. In fact, were excited. If 10 students were not
alina1380 [7]

Answer:1/2 divided by 10

Step-by-step explanation:

8 0
2 years ago
Please help me!<br> Look at this diagram.
Rina8888 [55]

Answer:

if you look at carefully the left triangle has two same side. so left-angle of C is 180-130=50 degree 5x+5x+50=180 x=13 degree

Step-by-step explanation:

for right triangle again one angle is 50 degree and other is 6*13-(3)=75 degree so 75+50+(10y+5)=180 degree y=5 degree

8 0
2 years ago
Read 2 more answers
Simplity: (3(2a)^1/3) 2<br> 24a3<br> 216a3<br> 72a3<br> 342a
marta [7]
72a3 is the right answer
8 0
2 years ago
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