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3 years ago

What is the slope of this line

Mathematics

1 answer:

aliina [53]3 years ago

5 0

Answer:

2/3

Step-by-step explanation:

This is suuuuper easy! To find the slope of a line you need to know the Rise over Run!

Find 2 points on the line that hit where x and y meet.

Find how much you have to go up from the lower point to get to the higher point, and find out how much you have to go sideways to match the x location. The amount you have to go up is your Rise. The amount you have to go left/right is your run

Rise/Run

2/3

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2. Carly needed to study for of an hour for 9 days. How many hours did she study?

Leya [2.2K]

Answer: The closest answer I got is 9 5/6 hours

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2 years ago

Find an for the arithmetic series with s16 = -288 And a1 =-21

Maru [420]

If $d$ is the common difference between terms in the sequence $\{a_n\}$ , then

$a_1=-21$
$a_2=a_1+d=-21+d$
$a_3=a_2+d=-21+2d$
...
$a_n=a_{n-1}+d=\cdots=-21+(n-1)d$

You're told that $S_{16}=-288$ (the sum of the first 16 terms in the sequence, presumably). Well, we know that

$S_{16}=\displaystyle\sum_{n=1}^{16}a_n=\sum_{n=1}^{16}(-21+(n-1)d)$
$S_{16}=\displaystyle(-21-d)\sum_{n=1}^{16}1+d\sum_{n=1}^{16}n$

Recall that

$\displaystyle\sum_{n=1}^kn=\frac{k(k+1)}2$

so that we have

$-288=16(-21-d)+\dfrac{16(16+1)}2d\implies d=\dfrac25$

So we get

$\begin{cases}a_1=-21\\\\a_n=-21+\dfrac25(n-1)\end{cases}$

8 0

3 years ago

Please answer this (who ever answers correctly gets brainlest)

kozerog [31]

Answer:

Step-by-step explanation:

$\frac{2}{5} \times 15 = 6$

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3 years ago

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In the following equations a and b are equal. which number could be substituted for both a and b to make both equations correct?

Nikitich [7]

Considering the first equation 15 × 0 = -36 + a
15 × 0 = 0
therefore, -36 + a =0
In the second equation
24 × 8 × 0 = 36 - b
Consider the LS
24 × 8 × 0 = 0
Therefore, 36 - b = 0
we are left with the two equations,
36 - b = 0
-36 + a = 0
then, we calculate the number that can be substituted to satisfy the two equations.
solving the equations
b = 36, and a = 36
Therefore, 36 is the number that can be used to substitute a and b in the equations

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4 years ago

What is 43.982 rounded to the nearest hundredth

Masja [62]

Answer:

43.99

Step-by-step explanation:

because I said it was

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3 years ago

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