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ASHA 777 [7]
3 years ago
11

Answer with figure if needed.random answer will be reported.​

Mathematics
1 answer:
max2010maxim [7]3 years ago
8 0

10m/s

32m/s

83m/s

None of these

Answer :

C

Solution :

At any instant x2+y2=52

Differentiating w.r.t. time 2xxdt+2ydydt=0

Here dxdt=2,dydt=u⇒u=83m/s

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Ginger buys lunch at school every day. She always gets pizza when it is
anyanavicka [17]

Answer:

2/10 20%

Step-by-step explanation:

6 0
3 years ago
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The function L = 0.8T^2 models the relationship between L, the length in feet of a pendulum, and T, the period in seconds of the
Semmy [17]
The correct option is "d".
Given that L = 0.8T²
length of pendulum = 30ft

L= 0.8T²
30 = 0.8T²
T² = 30 / 0.8
T² = 37.5
T = √37.5 = 6.1 seconds
<span>So, 6.1 is the closest to the period in seconds for a pendulum that is 30 ft long.</span>
7 0
3 years ago
A study of bone density on 5 random women at a hospital produced the following results.
IRINA_888 [86]

Answer:

- 0.9503 ; r is not statistically significant ; 0.9031

Step-by-step explanation:

Given the following :

Age (X) :

37

41

57

65

73

Bone density (Y)

355

345

340

315

310

Using the pearson R value calculator :

The r value of the data % - 0.9503.

This value depicts a very strong negative correlation between age and density of bone.

Using the pearson R calculator to obtain the P- value, the P value obtained is .01332 and hence the r is not significant at P < 0.01.

The Coefficient of determination R^2 can be obtained by getting the square value of R

R^2 = - 0.9503^2

R^2 = 0.90307009

R^2 = 0.9031

8 0
3 years ago
E = ( m V2)/2 rewrite this equation to solve for v<br><br><br><br> HELPP!!!!!
Vaselesa [24]

Answer: V 3

Step-by-step explanation:

6 0
3 years ago
FreezeFrame, a social networking site, sent out a survey in which the users simply click a response to join the sample. One of t
kramer

Answer:

Here, Convenience sampling is used by the poll

Explanation:

Convenience sampling also called as opportunity, grab or accidental sampling is a kind of non-likelihood testing that includes the sample being drawn from that piece of the populace that is near hand. This sort of sampling is most valuable for pilot testing.  

Convenience sampling is a procedure used to make sample according to straightforward entry, readiness to be a sample's part , accessibility at a given scheduled slot.  

So, this method of sampling is biased and don't results in desired outcomes.

7 0
3 years ago
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