3 years ago

Which expression correctly represents “twice the sum of four and a number”? 2 (4 + n)

Mathematics

1 answer:

Mice21 [21]3 years ago

4 0

Answer:

2 (4+n) and (4+n) x 2

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PLEASE HELP

rodikova [14]

Answer:

i think its a yes

Step-by-step explanation:

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3 years ago

17. Identify the explicit formula for the arithmetic sequence 12, 14, 16, 18, . . . . options: A) f(n) = 12 + 2(n − 1) B) f(n) =

tankabanditka [31]

Answer:

A) f(n) = 12 + 2(n-1)

Step-by-step explanation:

Arithmetic Sequence Formula:

a(n) = a(1) + (n-1)d

d = 2

a(1) = 12

a(n) = 12 + 2(n-1)

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3 years ago

Which fraction represents the shaded part of the grid?

Alexxandr [17]

Answer:

30%

Step-by-step explanation:

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3 years ago

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(3x + 10) + (3x + 2)

STatiana [176]

Answer: 18

Step-by-step explanation: 3 + 10 = 13. 3 + 2 = 5. 13 + 5 = 18

6 0

3 years ago

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Using the law of sines, find the solutions for the missing inputs.

SashulF [63]

$\frac{a}{ \sin(a) } = \frac{b}{ \sin(b) }$
$\frac{12}{ \sin(38) } = \frac{b}{ \sin(85) }$
$\frac{12}{ \sin(38) } = \frac{a}{ \sin(57) }$
$180 - (85 + 38) = 57$
$\frac{12}{ \sin(38) } = \frac{b}{ \sin(85) }$
$\sin(85) \times \frac{12}{ \sin(38) } = b$
$\sin(57) \times \frac{12}{ \sin(38) } = a$
sorry for the order of steps

5 0

3 years ago