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zimovet [89]
3 years ago
6

2,11,20 find the t15

Mathematics
1 answer:
astraxan [27]3 years ago
5 0

Answer:

128

Step-by-step explanation:

There is a common difference between consecutive terms, that is

11 - 2 = 20 - 11 = 9

This indicates the sequence is arithmetic with n th term

t_{n} = t₁ + (n - 1)d

where t₁ is the first term and d the common difference

Here t₁ = 2 and d = 9 , thus

t₁₅ = 2 + (14 × 9) = 2 + 126 = 128

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Solve for x. What is x/15 = 21/5?​
melisa1 [442]

Answer: x = 63

Step-by-step explanation:

15/3 = 5

3 * 21 = 63

63/15 = 21/5

8 0
3 years ago
Read 2 more answers
32x+5 = 3x - 3<br> Solving exponential equations
Likurg_2 [28]

Answer:

x = -8/29 = -0.276

Step-by-step explanation:

Step  1  :

Solving a Single Variable Equation :

1.1      Solve  :    29x+8 = 0

Subtract  8  from both sides of the equation :

                     29x = -8

Divide both sides of the equation by 29:

                    x = -8/29 = -0.276

One solution was found :

                  x = -8/29 = -0.276

Processing ends successfully

plz mark me as brainliest :)

5 0
3 years ago
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Unit 5. 9) Please help. A soda can holds approximately 25.5 cubic inches of soda and is 4.8 inches tall. What is the approximate
Natasha2012 [34]

Answer:

5.3125  in^2

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

V = Bh

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Divide each side by 4.8

25.5/4.8 = B

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4 0
3 years ago
(2y+3)(3y^2+4y+5) use the chart to multiply the binomial by the trinomial
astra-53 [7]

(2y+3)(3y^2+4y+5)

so u just multiply all the things from different brackets.

2y*3y^2 = 6y^3

2y*4y = 8y^2

2y*2 = 4y

3*3y^2 = 9y^2

3*4y = 12y

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so 6y^3+8y^2+4y+9y^2+12y+15

thats the answer BUT u need to collect the like terms, otherwise u probably wont get full marks on the question, so:

6y^3+17y^2+16y+15

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8 0
3 years ago
Solve for x math question
Colt1911 [192]

Square both sides

9(x + 2) = x + 4

Expand

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Subtract x from both sides

9x + 18 - x = 4

Simplify 9x + 18 - x to 8x + 18

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<u>C. x = -7/4</u>

8 0
3 years ago
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