Number 20 ASAP ASAP THANK YOU

Mathematics

1 answer:

stira [4]2 years ago

6 0

Answer:

I think its A, Because if you look at the problome A makes sense

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Hello can u help plz?

I am Lyosha [343]

Answer:

slope would be 3 or 3/1

Step-by-step explanation:

I think i'm not totally sure it could be -3 or -3/1

7 0

2 years ago

Geometric Shapes - Part 1

Softa [21]

Answer:

x = 54, so the vertical angles are 110°.

Step-by-step explanation:

$2x + 2 = 3x - 52$

$2 = x - 52$

$x = 54$

$2(54) + 2 = 108 + 2 = 110$

$3(54) - 52 = 162 - 52 = 110$

3 0

2 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

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