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earnstyle [38]
3 years ago
9

In a sequence, we know that t(11)= 22. We also know that the common difference is -4.

Mathematics
2 answers:
AfilCa [17]3 years ago
6 0

Answer:

t(13) = 14

Step-by-step explanation:

Given t(11) = 22 and d = - 4

Then to obtain the next term in the sequence subtract 4 from the previous term, that is

f(12) = f(11) - 4 = 22 - 4 = 18

t(13) = t(12) - 4 = 18 - 4 = 14

Aleksandr-060686 [28]3 years ago
5 0

Answer:

Step-by-step explanation:

I hope this means t_11 = 22

If it means t(11) = mx + b where x winds up being 11 and t(x) = 22, we have an entirely different problem. I'll try them both

t_11 = 22

t_11 = 22

d = - 4

what is a (where does this thing start).

L = a + (n - 1)*d

22 = a + (11 - 1)*-4

22 = a + 10*-4

22 = a - 40

a = 62

So finding t(13)  is

L = 62 + (13 - 1)*-4

L = 62 + 12 * - 4

L = 62 - 48

L = 14

======================

I think this is the only way to interpret it. If you get an answer explaining it, I'd take that answer.

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Find the intercepts: x+5y= -5
devlian [24]
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If f(x) = -(-2x - 5), what is f(-5)?
sammy [17]

Answer:

f(-5)=-5

Step-by-step explanation:

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4 0
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8 0
3 years ago
Change from rectangular to spherical coordinates. (let ≥ 0, 0 ≤ ≤ 2, and 0 ≤ ≤. ) (a) (5, 5 3 , 10 3 )
Nikolay [14]

The spherical coordinate that is converted from the given rectangular coordinate is (12.62, 46.67°, 35.3°).

Here, the given rectangular coordinate is (5, 5.3, 10.3).

Therefore, the value of 'x' is 5, the value of 'y' is 5.3 and the value of 'z' is 10.3.

We can convert the rectangular coordinate (x, y, z) into spherical coordinate (ρ, θ, Φ) by the below mentioned method.

We know, ρ² = (x²+y²+z²)

Therefore, ρ

= √(x²+y²+z²)

= √[(5)²+(5.3)²+(10.3)²]

= √(25+28.09+106.09)

= √(159.18)

= 12.62

Again, tan θ = (y/x)

Therefore, θ = tan⁻¹(y/x) = tan⁻¹(5.3/5) = tan⁻¹(1.06) = 46.67°

Similarly, cos Φ = (z/ρ)

Therefore, Φ = cos⁻¹(z/ρ) = cos⁻¹(10.3/12.62) = cos⁻¹(0.816) = 35.3°

Here, the spherical coordinate is (ρ, θ, Φ).

Therefore, the required spherical coordinate for the given rectangular coordinate is (12.62, 46.67°, 35.3°).

Learn more about the conversion of a rectangular coordinate to a spherical coordinate here: brainly.com/question/17185505

#SPJ4

8 0
2 years ago
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