3 years ago

Help me with this test in math please!! (questions in images)

Mathematics

2 answers:

irga5000 [103]3 years ago

8 0

Answer:

Step-by-step explanation:

There is no slope because it is a strait vertical line.

gogolik [260]3 years ago

3 0

1. Positive
2. Undefined
3. Negative
4. Zero
5. 4/3
6. 3/1

You might be interested in

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

Which symbol correctly compares these two fractions?<br> (picture)

stiv31 [10]

The answer is ( < ) I believe.

3 0

3 years ago

Read 2 more answers

Jolianne worked half as many hours as Andrew. Jolianne makes $10 per hour and has saved $27. Andrew makes $8 per hour and has sa

lisabon 2012 [21]

Answer:

Step-by-step explanation:

8t = 10(1/2t) + 27

8(2t = 10(t) + 27

Number 4 is correct

4 0

4 years ago

Two airlines each made 30 flights. The dot plots shown compare

Gnoma [55]

Answer: Airline P since the median is lower and the SDR is lower

Step-by-step explanation:

5 0

3 years ago

"18 less than the quotient of a number and -5 is at most -2"

RUDIKE [14]

Answer:

so......... what's the question?

Step-by-step explanation:

4 0

3 years ago