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Katen [24]
2 years ago
9

Please help!!! Been stuck here for quite awhile.

Mathematics
1 answer:
mezya [45]2 years ago
3 0

Answer:

7th term =1

Step-by-step explanation:

This is Geometric progression.

a_{2}=\frac{a_{1}}{2}=\frac{64}{2}=32\\\\\\r=\frac{a_{2}}{a_{1}}=\frac{32}{64}=\frac{1}{2}\\\\a_{n}=ar^{n-1}\\\\a_{7}=64*\frac{1}{2}^{7-1}=64*\frac{1}{2}^{6}\\\\=64*\frac{1}{64}=1

7th term =1

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Ab=z Bc=x Ac=y. is the answer
3 0
3 years ago
Read 2 more answers
Find the minimum value of the function f (x) = 2x² + 11.4x + 18.5 to the<br> nearest hundredth.
Maru [420]

Answer:

2x^{2} + 11.4x + 18.5 ---> No Like Terms

Step-by-step explanation:

           

4 0
3 years ago
You must be at least 42 inches tall to ride the bumper cars at an amusement park. Write an inequality that represents this situa
Anestetic [448]

Answer:

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Step-by-step explanation:

5 0
2 years ago
2HR 37MIN - 1HR 15 MIN
dlinn [17]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
Part 1
svetlana [45]

Answer:

A: This polynomial has a degree of 2 , so the equation 12x2+5x−2=0 has two or fewer roots.

B: The quadratic equation 12x2+5x−2=0 has two real solutions, x=−2/3 or x=1/4 , and therefore has two real roots.

Step-by-step explanation:

f(x) = 12x^2 + 5x - 2.

Since this is a quadratic equation, or a polynomial of second degree, one can easily conclude that this equation will have at most 2 roots. At most 2 roots mean that the function can have either 2 roots at maximum or less than 2 roots. Therefore, in the A category, 2nd option is the correct answer (This polynomial has a degree of 2 , so the equation 12x^2 + 5x − 2 = 0 has two or fewer roots).

To find the roots of f(x), set f(x) = 0. Therefore:

12x^2 + 5x - 2 = 0. Solving the question using the mid term breaking method shows that 12*2=24. The factors of 24 whose difference is 5 are 8 and 3. Therefore:

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4x(3x + 2) -1(3x+2) = 0.

(4x-1)(3x+2) = 0.

4x-1 = 0 or 3x+2 = 0.

x = 1/4 or x = -2/3.

It can be seen that f(x) has two distinct real roots. Therefore, in the B category, 1st Option is the correct answer (The quadratic equation 12x2+5x−2=0 has two real solutions, x=−2/3 or x=1/4 , and therefore has two real roots)!!!

8 0
3 years ago
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