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creativ13 [48]
3 years ago
6

Please help me with what the first two go with :( it’s a test

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0
I wish I knew, I had the same question
You might be interested in
Given the sequence tn defined recursively below, find t4.
Alina [70]

Answer:

t_4 = 20

Step-by-step explanation:

The base case in the recursive function are:

t_1 = 1

t_2 = 2

The recursive case is equal to:

t_n = 2t_{n-1} + 3t_{n-2}

So replace t_n for t_4:

t_4 = 2t_{3} + 3t_{2}

In the new expression t_2 is a base case so you don't have to worry for that part, but t_3 is still the recursive case so evaluate again in t_n

t_3 = 2t_{2} + 3t_{1}

t_2 and t_1\\ are define as base cases so you replace for it's numbers:

t_3 = 2(2) + 3(1) = 7

Now return to t_4 and replace for the new values:

t_4 = 2(7) + 3(2) = 14 + 6 = 20

So the final answer is 20

3 0
3 years ago
The sum of two consecutive numbers is -165. Find the value of the smaller number.
zalisa [80]

Let's say the smaller number is x.  Then, we can represent the larger number as x + 1. The +1 means that it's both larger, because adding makes a number larger, and consecutive, because it's 1 greater or less.

Then, we can write an equation. The sum of the two numbers is x + (x + 1), and it's equal to -165.

x + (x + 1) = -165

2x + 1 = -165

2x = -166

x = -83

Since x = -83, the smaller number is -83.

7 0
3 years ago
Sorry for posting a bunch I need to pass this math test
Paha777 [63]

Answer:

c

Step-by-step explanation:

if the letter c=0 so 2x0= 0 and 5x2= 10x3=30

6 0
3 years ago
Round 96.9617186007 to the nearest tenth.
Pavlova-9 [17]

if you're talking about the whole number, 100.96. if you're referring to decimal place values; 96.70.

underline the digit that you round to

circle the digit to the right

five or more goes up

four or less stays the same

everything behind becomes a zero.

6 0
4 years ago
Read 2 more answers
What is the value of x in simplest radical form?
Ostrovityanka [42]
In this case, we will use our Pythagorean Theorem.

a = 84
b = 13
c = x

\sqrt{84^2 + 13^2} = 85

Thus, x = 85.
8 0
3 years ago
Read 2 more answers
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