3 years ago

Sin 145° rounded to the nearest hundredth

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

Answer:

0.57

You could use a calculator ya know

Step-by-step explanation:

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lesya [120]

The answer of this question is b

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3 years ago

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One integer is 3 times another if the product of the two integers is 75 then find the integers

Kitty [74]

Answer: HOPE THIS HELPED! :D

5 x 15 = 75

Step-by-step explanation:

15 is 3x 5

and product do 3x15 is 75

so answer would be

5 & 15

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3 years ago

What is the 7th term of the geometric sequence where a1 = -625 and a2 = 125

kykrilka [37]

Since the sequence is geometric, there is some constant $r$ such that the sequence is recursively given by

$a_n=ra_{n-1}$

By this definition, you can recursively substitute into the right hand side the definition for $a_{n-1},a_{n-2},\ldots$ to find an explicit formula for the $n$ th term.

$a_n=ra_{n-1}=r^2a_{n-2}=r^3a_{n-3}=\cdots=r^{n-1}a_1=-625r^{n-1}$

You know the second term, which means you can find $r$ :

$a_2=-625r^{2-1}\implies125=-625r\implies r=-\dfrac15$

So, the 7th term of the sequence is

$a_7=-625\left(-\dfrac15\right)^{7-1}=-\dfrac1{25}$