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3 years ago

13

The nth term of a sequence is 3n+4 explain why 21 is not a term of this sequence

1 answer:

Snowcat [4.5K]3 years ago

6 0

In this sequence, n can only be a natural number. So, if you plug in 5 for n, then you get 19. Also, if you plug in 6 for n, you get 24. Since no natural number can be replaced with n to get 21, it isn’t a term in the sequence

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Two or more complete sentences, explain how to use ordered pairs of points in f(x) and g(x) to determine if f(x) and g(x) are in

kati45 [8]

If f(x) is an inverse of g(x),

when
f(x)=y
g(y)=x

aka
f(g(x))=x
g(f(x))=x

basically, the values should be swiched

example
f(x)=
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(2,3)
(4,5)
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3 years ago

What is the value of the following expression?2 x [(12 + 2) x 5] + 32 divided by 2 number on top right 3

a_sh-v [17]

The value of the expression is $141.5$

Explanation:

The expression is $2 \times[(12+2) \times 5]+\frac{3}{2}$

The value of the expression can be determined using the rule PEMDAS.

According to the PEMDAS rule, first we need to perform the operation which is within the parenthesis.

Thus, the expression becomes,

$2 \times(14 \times 5)+\frac{3}{2}$

Multiplying the values within parenthesis, we have,

$2 \times70+\frac{3}{2}$

Using PEMDAS, we need to multiply the numbers.

$140+\frac{3}{2}$

Again using PEMDAS rule, divide the number,

$140+1.5$

Finally, using PEMDAS, let us add the values, we have,

$141.5$

Thus, the value of the expression is $141.5$

7 0

2 years ago

Which equation represents the line that contains the point (-2, 9) and is perpendicular to the line y = 2x + 6?

olganol [36]

Y=-1/2x+8

perpendicular means slope is opposite reciprocal so it would be -1/2

y=-1/2x+b
Plug in points and solve for b
B=8

7 0

3 years ago

Read 2 more answers

the total price of 6 movie tickets is 71.40 if each ticket cost the same amount how much does one movie ticket cost

mr Goodwill [35]

Answer:

11.9

Step-by-step explanation:

71.40 divided by 6

7 0

2 years ago

Factor completely 3x2 + 9x – 54. ...?

anyanavicka [17]

3x² + 9x - 54 :(3)
x² + 3x - 18
(x-3)*(x+6)

8 0

3 years ago