3 years ago

Need help with these two math problems

Mathematics

1 answer:

Gnom [1K]3 years ago

8 0

Answer:

y = (x - 1)(x - 3)

y = (x + 2)^2

Step-by-step explanation:

Has roots at x = {1, 3}

y = (x - 1)(x - 3)

Has double root at x = -2

y = (x + 2)^2

You might be interested in

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

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

5 0

4 years ago

Solve for t: 3t + 4 = -4

Vinvika [58]

Here youuuu gooo hope this helpsss