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Romashka-Z-Leto [24]
3 years ago
14

Need help asap!!! plsss

Mathematics
1 answer:
sveta [45]3 years ago
5 0
It’s the second one good luck!
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An article in the Journal of Aircraft described a new equivalent plate analysis method formulation that is capable of modeling a
mezya [45]

Answer:

Given:

n = 15

c = 95% = 0.95

Let us assume:

α = 0.05

Determine the difference in value of each pair.

→See attached for the table←

→See attached for the for the workings←

Result

a) There is sufficient evidence to reject the claim that the two methods provide the same mean value for natural vibration frequency.

b) (-10.9646, -0.0068)

3 0
3 years ago
Three children each had the same amount of money in their savings account. One of the children withdrew a quarter of her money a
malfutka [58]
The total money with them was $100 in their accounts
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3 years ago
Given the slope and ordered pair write in y=mx+b form<br> slope: 7/9, ordered pair: (0,−8/9)
Misha Larkins [42]
The answer to the question

6 0
3 years ago
Help me please thanks
Natalka [10]

Answer: All real numbers

Step-by-step explanation: If you plug in any number, it will work. 4(a+3) = 12+4a. a=-3  0=0


6 0
3 years ago
Read 2 more answers
How many x-intercepts does the graph of each quadratic equation have? Show your work.
Alex73 [517]

Answer:

Step-by-step explanation:

In each case we find the discriminant b^2 - 4ac.

If the discriminant is negative, we have two unequal, complex roots.

If the discriminant is zero. we have two equal, real roots.

If the discriminant is positive, we  have two unequal real roots.

#51:  8v^2 - 12v + 9:  the discriminant is (-12)^2 - 4(8)(9) = -144.  we have two unequal, complex roots

#52:  (-11)^2 - 4(4)(-14) = 121 + 224 = 345.  we  have two unequal real roots.

#53:  (-5)^2 - 4(7)(6) = 25 - 168 (negative).  we have two unequal, complex roots.

#54:  (4)^2 - 16 = 0.  We have two equal, real roots.

4 0
3 years ago
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