3 years ago

Worth 20 points Il will mark brainiest! :)

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

A. Perpendicular!

Because they cross with a 90 degree angle :]

iragen [17]3 years ago

5 0

Answer: Perpendicular

Step-by-step explanation: Hope this helps

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Rewrite 1/2 3/4 as a unit rate

Nata [24]

Answer:

Step-by-step explanation yes

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3 years ago

Question is : Rearrange to make x the subject : 3y-2x=7

maksim [4K]

Answer:

Step-by-step explanation:

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Read 2 more answers

Will give 25 points and brainliest answer if correct

Norma-Jean [14]

Let $d$ be the common difference between terms in the sequence $\{a_n\}_{n\ge1}$ . Then

$a_{19}=-58$
$a_{20}=a_{19}+d$
$a_{21}=a_{19}+2d$
$\implies-164=-58+2d\implies d=-53$

The first term in the sequence, $a_1$ , satisfies

$a_2=a_1+d$
$a_3=a_1+2d$
$a_4=a_1+3d$
...
$a_{19}=a_1+18d$
$\implies-58=a_1+18(-53)\implies a_1=896$

So the explicit formula for the $n$ -th term in the sequence is

$a_n=a_1+(n-1)d\implies a_n=896-53(n-1)$

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3 years ago

Please solve this quadratic equation:<br>9^x-1 = 27^X-1

nadezda [96]

Answer:

x=1

Step-by-step explanation:

if it is truly 9^(x-1)=27^(x-1), then you dont really need to use the quadratic fromula.

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3 years ago

The sum of four consecutive negative integers is -26. what are the integers

Naily [24]

X + (x + 1) + (x + 2) + (x + 3) = -26

Even though it says negative, the same rules apply.

4x + 6 = -26
4x = -32
x = -8

-8, -7, -6, -5

Hope this helps!

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3 years ago