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3 years ago

the sum of the first n terms of a sequence is given by Sn=3^m^+^1-6 Determine the sum of the first 12 terms

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

Hi I just need to answer this so I can get point so yea but it’s probably 3-56 38

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HELPPP meeeeee pls i really need it

AlekseyPX

Answer:

Step-by-step explanation:

It seems to be A but it's not A because the ratio of their corresponding sides is 1:2

Rest of the working in the attached file

4 0

3 years ago

Need help with this problem

Naya [18.7K]

Answer:

Slope is 1.5

Step-by-step explanation:

When one line has a slope of M, a perendicular line has a slope of -1/M

in this case M = -2/3, so you put it into -1/(-2/3) which equals to 1.5

7 0

3 years ago

Find the distance between the points (5,-6), (-3,12)

grigory [225]

Answer:

$\displaystyle d = 2\sqrt{97}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (5, -6)

Point (-3, 12)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-3-5)^2+(12+6)^2}$
[√Radical] (Parenthesis) Subtract/Add: $\displaystyle d = \sqrt{(-8)^2+(18)^2}$
[√Radical] Evaluate Exponents: $\displaystyle d = \sqrt{64+324}$
[√Radical] Add: $\displaystyle d = \sqrt{388}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{97}$

8 0

3 years ago

At big bens bakery 48 chocolate donuts were made,which is 6 times the number of cream filled donuts made.How many more chocolate

ratelena [41]

Answer:

The number of chocolate made donuts is 40 more than cream filed donuts

Step-by-step explanation:

Given as :

The number of chocolate donuts made = 48

The number of chocolate donuts is 6 times the number of cream filled donuts

So, Let the number of cream filled donuts = x

So, number of chocolate donuts made = $6\times x$

∴ $6\times x$ = 48

Or, x = $\frac{48}{6}$ = 8

So, the number of cream filled donuts = 8

Now ,

The number of chocolate donuts made - the number of cream filled donuts = 48 - 8 = 40

So , The number of chocolate made donuts is 40 more than cream filed donuts Answer

7 0

3 years ago

You have to multiply 7 by 19. Which equation uses the Distributive Property to take this problem apart?

grigory [225]

Answer: Choice A

7(10+9) = 70 + 63

============================

Explanation:

when we multiply 7 by 19, we start off multiplying just 7*9 = 63 so just focus on the units or ones digit of 19 to have it multiply with 7. We have 63 as the result so we write down "3" as part of the answer, and carry the 6.

Then you move onto the tens digit. The tens digit of 19 is 1. Multiply 1 by 7 and we get 7, which adds on to the carry digit 6 to get 7+6 = 13. Therefore we'll stick a 13 in front of the 3 we got earlier to end up with the final answer 133

---------------

Using the distribution rule is much easier in my opinion

19 = 10+9

7*19 = 7*(10+9)

7*19 = 70+63

7*19 = 133

The idea is to multiply the outer 7 by each term inside the parenthesis

7*(10+9) = 7*10 + 7*9 = 70 + 63

So we multiplied the 7 by the 10 first to get 7*10 = 70

Then did the same for the 9 term as well 7*9 = 63

After those two multiplications, we add the results up: 70+63 = 133

4 0

4 years ago

Read 2 more answers

the sum of the first n terms of a sequence is given by Sn=3^m^+^1-6 Determine the sum of the first 12 terms​

the sum of the first n terms of a sequence is given by Sn=3^m^+^1-6 Determine the sum of the first 12 terms