3 years ago

Choose the arithmetic series that is associated with this summation.

1 answer:

7 0

Plug n = 1 into the expression 20-9n and we get
20-9n = 20-9*1 = 20-9 = 11

So 11 is the first term of the series that we add up. Therefore the answer must be choice C, which has 11 listed as the first term added

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Is 2x-4=2x-7 infinite no solution or one solution

Elan Coil [88]

Answer:

no solution

Step-by-step explanation:

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2 years ago

What quantum numbers specify these subshells 5s 2p 3d?

Ivan

5s subshell represent that n is equal to 5 and l is equal to 0.
2p subshell represent that n is equal to 2 and l is equal to 1.
3d subshell represent that n is equal to 3 and l is equal to 2.
The numbers gives us the value of n and the letter gives us the value of l.
s means l = 0
p means l = 1
d means l = 2
f means l = 3

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2 years ago

A painting set is shipped in the box shown. The surface area is printed with advertisements.

Shkiper50 [21]

Answer:

528in

Step-by-step explanation:

SA formula: 2Lw + 2Lh + 2hw

for this box: 2(4×10)+2(10×16)+2(4×16)

2(40)+2(160)+2(64)

80+320+128

80+448

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2 years ago

What is the length of arc S shown below? Enter an exact expression.

aleksandrvk [35]

Answer:

S = 15π = 47.12

length of arc S = 15π

Attached is the image of the arc.

Step-by-step explanation:

Given;

Radius arc r = 10

Angle at the center of arc ⍉ = 3π/2

The length of the arc S can be derived using the formula;

S = r × ⍉

Substituting the values;

S = 10 × 3π/2

S = 30π/2

S = 15π = 47.12

length of arc S = 15π

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3 years ago

What is the cost of the TV?

sasho [114]

20%of £800 is 800÷5 =160
800 + 160 =960

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2 years ago