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Sidana [21]
3 years ago
11

Can someone help me ?

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

<h2>here,we have</h2><h3>-3r= 87</h3><h2>now,</h2>

r=87÷ -3

r= -29

denis23 [38]3 years ago
7 0

Answer:

r = - 29

Step-by-step explanation:

Given

- 3r = 87 ( divide both sides by - 3 )

r = \frac{87}{-3} = - 29

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Find the 61st term of -12, -28, -44,
Citrus2011 [14]

Answer:

a_{61}=-972

Step-by-step explanation:

<u>Arithmetic Sequences</u>

The arithmetic sequences are identified because any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

a_n=a_1+(n-1)r

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

We are given the first terms of a sequence:

-12, -28, -44,...

Find the common difference by subtracting consecutive terms:

r = -28 - (-12) = -16

r = -44 - (-28) = -16

The first term is a1 = -12. Now we calculate the term n=61:

a_{61}=-12+(61-1)(-16)

a_{61}=-12-60*16=-12-960

\mathbf{a_{61}=-972}

6 0
3 years ago
Would it be 1/5 ?? i'm not sure how to do probability
Sidana [21]

Answer:

Choice A

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5 red socks, 2 white socks, 3 blue socks = 10 socks


1 st sock red : 5 / 10

2nd sock red : 4/9

we didn't put the sock back

a pair of red socks

5/10 * 4/9 = 20/90 = 2/9



8 0
3 years ago
Need help with this<br>​
AleksandrR [38]

Step-by-step explanation:

\cos( \beta  )  +  \sin( \beta )  \tan( \beta )  =  \sec( \beta )

\cos( \beta )  +  \sin( \beta )  \frac{ \sin( \beta ) }{ \cos( \beta ) }

\cos( \beta )  +  \frac{ \sin {}^{2} ( \beta ) }{ \cos( \beta ) }

\frac{ \cos {}^{2} ( \beta ) }{cos \beta }  +  \frac{ \sin {}^{2} ( \beta ) }{ \cos( \beta ) }

\frac{1}{ \cos( \beta ) }

=  \sec( \beta )

3 0
3 years ago
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I need to know how to find the initial value, Rate of Charge, and The equation
MrRa [10]
Use a porportion to help better and speed up the process

7 0
3 years ago
Rex, Lassie, and Beethoven eat their dog foods at different rates, though each gets the same amount. Rex can finish his bowl in
sergij07 [2.7K]
So in the answer here beethoven ate 10000
7 0
3 years ago
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