Ask question

Ask question

All categories

3 years ago

9

What choices are correct?

2 answers:

motikmotik3 years ago

7 0

The answer is D.The domain is all real numbers

Snezhnost [94]3 years ago

4 0

Answer:

its b

Step-by-step explanation:

You might be interested in

Below is the number of games each quarterback in the Northwest division has played this season.

Nimfa-mama [501]

You may want to include a question

5 0

3 years ago

Pls help my mom will literally scream at me lol . thank you sm:)

Lady bird [3.3K]

Answer:

The amount Tobie invests in a bank, P = $25

The annual compound interest rate, i = 4%

a. The principal is amount invested in the bank, P = $25

The annual interest rate, i = 4%

b. The function that represents Tobie's account balance, <em>A</em>, after <em>t</em> years is given as follows;

$A(t) = P \cdot (1 + i)^t$

Where;

A(t) = The amount in the account after <em>t</em> years

P = The principal amount

i = The annual compound interest rate

t = The number of years

c. The values to place in the table are found as follows;

At t = 0, $A(0) = 25 \times(1 + 0.04)^0$ = 25

At t = 10, $A(10) = 25 \times(1 + 0.04)^{10}$ = 37

The given table is presented as follows;

$\begin{array}{ccc}t&&A(t)\\0&&25\\10&&37\end{array}$

Step-by-step explanation:

4 0

3 years ago

Trying to solve y + 4 = -5/3(x-5) Do I get y = -5/3x + 25/3 or do I multiply everything by 3 to get -15x + 21? Provide how.

grin007 [14]

Step-by-step explanation:

you could multiply 3 by everything to get rid of the fraction but you would still have to the equation after multiplying

7 0

3 years ago

Q8 Q3.) Solve the system by the substitution method.

inn [45]

Recall that $(x+y)^2=x^2+2xy+y^2$ . So we can add twice the first equation to the second one to get

$x^2+y^2+2xy=10+2\cdot3\iff(x+y)^2=16\implies x+y=\pm4$

Since $xy=3$ , we have $y=\dfrac3x$ $(x\neq0)$ so

$x+y=x+\dfrac3x=\pm4\implies x^2\mp4x+3=0$

If $x+y=4$ , then

$x^2-4x+3=(x-3)(x-1)=0\implies x=3,x=1\implies y=1,y=3$

If $x+y=-4$ , then

$x^2+4x+3=(x+1)(x+3)=0\implies x=-1,x=-3\implies y=-3,y=-1$

So the solution set is

$(x,y)\in\{(-3,1),(1,3),(-1,-3),(-3,-1)\}$

3 0

3 years ago

At 5.45p.M .,lixin,khairul and Devil are at the starting point of a 1-km circular path. Lixin Takes 18 minutes to walk one round

sweet [91]

Answer:

$Meeting\ Time = 6:03\ pm$

Step-by-step explanation:

Given

$Start\ Time= 5:45pm$

$Lixin = 18\ min/round$

$Khairul = 360\ seconds/round$

$Devi = 4minutes/2\ rounds$

Required

Determine their next meeting time

First, we need to get their unit rate in minutes per round

$Lixin = 18\ min/round$

$Khairul = 360\ seconds/round$

Convert 360 seconds to minutes

$Khairul = \frac{360}{60} min/round$

$Khairul = 6 min/round$

$Devi = 4minutes/2\ rounds$

Divide by 2/2

$Devi = 2mins/round$

So, we have:

$Lixin = 18\ min/round$

$Khairul = 6 min/round$

$Devi = 2mins/round$

Next, is to determine the LCM of 18, 6 and 2

$18=2 * 3 * 3$

$6 = 2 * 3$

$3 = 3$

Their LCM is:

$LCM = 2 * 3 * 3$

$LCM = 18$

This means that they will meet 18 minutes after their initial time of departure.

So:

$Meeting\ Time = 5:45\ pm + 18\ minutes$

$Meeting\ Time = 6:03\ pm$

3 0

3 years ago