All categories

3 years ago

2 answers:

7 0

B. (1, –3)

x – y = 4
8x + 2y = 2

1 - (-3) = 4
8(1) + 2(-3) =
8 - 6 = 2
True

hope this helps

Nikitich [7]3 years ago

5 0

Hello,

Your brainliest answer would be:

B.
(1, –3)

Plz mark me brainliest!

Hope this helps!

You might be interested in

Can a line have lines of symmetry like the first line in the picture

muminat

Answer:

it has 1478

Step-by-step explanation:

4 0

2 years ago

I need only help on 11-14 please someone help me

Ainat [17]

Linear function definition: a function that will create a straight line when graphed.

11 is not a linear function (not a straight line), but 12 is.

For the tables, you can either plot out the graph or just look at the number patterns. A linear function's numbers will always increase/decrease accordingly at a constant rate. For example, in 14, you notice that as x increases by 1, y decreases by 2. This means it is a linear graph.

In 13, as x increases by 1, the output y increases but at a different rate each time. It increased by 3 at first, then 5, then 7. Hence, it is not a linear function. What is it then? It is an exponential function.

4 0

2 years ago

3. You want to have $4000 in your savings account after 2 years. Find the amount you should deposit for each of the situations d

pychu [463]

Answer:

Part A)

About $3767.34.

Part B)

About $3692.47.

Step-by-step explanation:

Part A)

Recall that compound interest is given by the formula:
$\displaystyle A = P\left(1+\frac{r}{n}\right)^{nt}$

Where A is the final amount, P is the initial amount, r is the interest rate, n is the number of times compounded per year, and t is the number of years.

To obtain $4000 after two years, let A = 4000 and t = 2.

Because the account pays 3% interest compounded monthly, r = 0.03 and n = 12.

Substitute and solve for P:

$\displaystyle \begin{aligned} (4000) & = P\left(1+\frac{(0.03)}{(12)}\right)^{(12)(2)} \\ \\ P & = \frac{4000}{\left(1+\dfrac{(0.03)}{(12)}\right)^{(12)(2)}} \\ \\ & \approx \$3767.34\end{aligned}$

In concluion, about $3767.34 should be deposited.

Part B)

Recall the formula for continuous compound:

$\displaystyle A = Pe^{rt}$

Where e is Euler's number.

Hence, let A = 4000, r = 0.04 and t = 2. Substitute and solve for P:

$\displaystyle \begin{aligned}(4000) & = Pe^{(0.04)(2)} \\ \\ P & = \frac{4000}{e^{(0.02)(4)}} \\ \\ & \approx \$3692.47 \end{aligned}$

In conclusion, about $3692.47 should be deposited.

8 0

2 years ago

Which function is a quadratic function?

DerKrebs [107]

The correct answer is: [C]: " c(x) = –8x² + 3x – 5 " .
_________________________________________________________
The quadratic function takes the form of:
_________________________________________________________
" f(x) = ax² + bx + c " .
_________________________________________________________
Answer choice: [C]: " c(x) = –8x² + 3x – 5 " ;

is the only answer choice provided that takes that form of the quadratic function:

" f(x) = ax² + bx + c " :

in which: " a = -8 " ; " b = 3 " ; " c = -5 " .
____________________________________________________

5 0

3 years ago

What is the value of this expression? (−4)4

Marina86 [1]

Answer:

-16

Step-by-step explanation:

Anything written in the form of a(b) or (b)a means a × b:

(-4)4 means -4 × 4 which is -16 (a positive and a negative multiplied together make a negative).

Hope this helps!

8 0

2 years ago