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kozerog [31]
2 years ago
14

An=−2+32(n−1) What is the 21st term of the sequence?

Mathematics
1 answer:
OLEGan [10]2 years ago
5 0

Answer:

a₂₁ = 638

Step-by-step explanation:

substitute n = 21 into the explicit formula

a₂₁ = - 2 + 32(21 - 1) = - 2 + 32(20) = - 2 + 640 = 638

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A sphere has a radius of 15 m. If the radius is divided by 5, what is the effect on the surface area?
Romashka [77]
The surface area is multiplied by 5.
The surface area is divided by 5.
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5 0
3 years ago
If line KM bisects angle JKL, angle JKL = 92 degrees, and angle MKL = (5x+1) degrees, find the value of
kherson [118]

The value of the variable x is found to be x = 9.

<h3>What is termed as angle bisector?</h3>
  • In geometry, an angle bisector is a line that divides an angle into two equal angles.
  • A bisector is something that divides a shape or thing into two equal portions.
  • An angle bisector is a ray that divides an angle into two equal components of the same measurement.

A bisected angle divides the two sides in equals.

JKM = LKM

As, both are equal.

Then, each of these angles are 1/2 the angle JKL.

1/2 JKL = MKL

1/2 ×( 92) = 5x + 1

Further simplifying;

46 = 5x+1

Subtract 1 from each side

46-1 = 5x

45 = 5x

Divide each side by 5

45/5 = 5x/5

x = 9

Thus, the value of the unknown variable is found to be x = 9 units.

To know more about the angle bisector, here

brainly.com/question/14399747

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6 0
1 year ago
3^5 equals 243. Explain how to use that fact to quickly evaluate 3^6.
OlgaM077 [116]

Answer:

Simply multiply 243 with 3.

Step-by-step explanation:

3^6=729

243*3=729

4 0
3 years ago
Read 2 more answers
Graph the line with the equation y=-2x + 6.
motikmotik

Answer:

can you show a link to the graph

Step-by-step explanation:

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3 years ago
Verify this identity: secx-cosx = 1-cos^2x/cosx
Sauron [17]

Step-by-step explanation:

sec x − cos x

Secant is the inverse of cosine:

(1 / cos x) − cos x

Find the common denominator:

(1 / cos x) − (cos² x / cos x)

Subtract:

(1 − cos² x) / cos x

5 0
3 years ago
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