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3 years ago

Find the sum of the first 6 terms of the series 3-6+12-24+

Mathematics

2 answers:

denis-greek [22]3 years ago

8 0

Answer:

its D. -63

Step-by-step explanation:

3 - 6 + 12 - 24 + 48 - 96 = -63

irinina [24]3 years ago

3 0

Theres only 4 but the answer is -15

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Plss help i beg you!

frosja888 [35]

Answer:

Step-by-step explanation:

<u>Given expression:</u>

3(x + y) +2x² + (1 + y)²

<u>Find its value when x = 4 and y = 1, substitute:</u>

3(4 + 1) + 2*4² + (1 + 1)² =
3*5 + 2*16 + 2² =
15 + 32 + 4 =
51

7 0

3 years ago

Determine the vertex of the quadratic function.

const2013 [10]

Answer:

Step-by-step explanation:

The vertex is the turning point of the quadratic function.

In this case it lies on the x- axis at (2, 0 ) → B

6 0

3 years ago

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How many times greater is The total area of Russia than the total area of Finland? Finland total area is 3.4 x 10 to the 5th pow

Luden [163]

Answer:

The answer to your question is Russia is 50 times greater than Finland.

Step-by-step explanation:

Data

Finland area = 3.4 x 10⁵ km²

Russia area = 1.7 x 10⁷ km²

Proportion = ?

Process

1.- Just divide the Russia's area by the Finland's area.

Proportion = $\frac{Finland's area}{Russia's area}$

Proportion = $\frac{1.7 x 10^{7} }{3.4 x 10^{5} }$

Porportion = 50

6 0

3 years ago

Solve the system of linear equations below.

Olegator [25]

Answer:

B. x = 2, y = 6

Step-by-step explanation:

$2x + 5y = 34...(1) \\ \\ x + 2y = 14 \\ \therefore \: x = 14 - 2y...(2) \\ \\ from \: equations \: (1) \: and \: (2) \\ \\ 2(14 - 2y) + 5y = 34 \\ \therefore \: 28 - 4y + 5y = 34 \\ \therefore \: 28 + y = 34 \\ \therefore \: y = 34 - 28 \\ \huge \red{ \boxed{\therefore \: y = 6}} \\ substituting \: y = 6 \: in \: equation \: (2) \\ x = 14 - 2 \times 6 \\ \therefore \: x =14 - 12 \\ \huge \purple{ \boxed{\therefore \: x =2}} \\ \\ \huge \orange{ \boxed{ \therefore \: x = 2, \: \: y = 6}} \\$

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3 years ago

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Given that f(x)=x^2-4x-3 and g(x)= x+3/4, solve for f(g(x)) when x =9

xxMikexx [17]

The answer to the question

4 0

3 years ago

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