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3 years ago

Which graph can be used to find the solution(s) to x^2-1=3?

Mathematics

2 answers:

olga2289 [7]3 years ago

6 0

First of all, you need to attach images for this one. Second of all, graph it in desmos and compare. Thirdly, whichever looks like this.

BabaBlast [244]3 years ago

6 0

Answer:

Hello there the answer is D

Step-by-step explanation:

You have to look at the graph first.

Since the equation is = 3 you can simply eliminate A,C

So that leaves us with B,D

Then this is how I know graphs is that the line will be horizontal if it’s by its self so the answer would be D

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Find the distance between (-8, -1) and (0, 5). Give your answer in simplest radical form.

dolphi86 [110]

Answer:

D (10)

Step-by-step explanation:

The difference in the x-values is 8 and the difference in y-values is 6; if we draw a line for each difference and connect the points, we get a right triangle. Use pythagorean's theorem of a^2 + b^2 = c^2; 36 (6^2) + 64 (8^2) = 100 (10^2). Square root 100 to get 10

5 0

3 years ago

Freezing Pipes

Monica [59]

Answer:

3 hours

Step-by-step explanation:

44-6= 38 (1 hour)

38-6= 32 (2 hours)

32-6= 26 (3 hours)

8 0

3 years ago

Shiloh is 7 years older than Courtney. Shiloh's age is 13 years less than two times Courtney's age. The system below models the

Andrews [41]

I'm afraid I don't see the models you have written about although I do know the answer. (C= Courtney's age, S= Shilo's age)

Shilo is 7 years older then Courtney, which equals to C+7=S.

While at the same time Shilo is 13 years younger then twice Courtney's age. This turns into Cx2-13=S.

c+7=cx2-13. This is the equation, now lets work it out.

Add 13 on each side and you get

c+20=2c

Now we subtract c from each side and we get

20=c Therefor we have found out that Courtney is 20 years old.

Shilo being 7 years older then Courtney is 27

8 0

3 years ago

Adrian's CD player can hold six disks at a time and shuffles all of the albums and their songs. If he has thirteen CD's, how man

EastWind [94]

To answer this problem, the utilization of the provided formula is of utmost importance.

The formula to be used would be for the combination with no repetition since it is what is asked and possibly happens when involving the products mentioned in the problem. The formula would be

n! where in
------------- n = number of things to choose from
(n - r)! r! r = number of things needed to form

the symbol ! is called a factorial function which replaces the sequence of multiplying a number in a descending order.

lets substitute and solve

13!
--------------
(13 - 6)! 6!

13!
-------------
(7!) 6!

6,227,020,800
-------------------
5,040 x 720

6,227,020,800
-------------------
3,628,800

1,716

The answer would be 1,716.

6 0

3 years ago

Miguel e nádia trabalham num escritório de contabilidade. A cada 45 minutos miguel vai á sala de café para relaxar um pouco, enq

Kazeer [188]

Responder:

3 horas

Explicação passo a passo:

Dado :

Miguel a cada 45 minutos

Nádia a cada 60 minutos

Número de horas que eles vão se ver no mesmo lugar:

Para fazer isso ;

Obtenha o menor múltiplo comum de 60 e 45

Múltiplos de:

45: 45, 90, 135, 180, 225.

60: 60, 120, 180, 240, 300.

O menor múltiplo comum de 45 e 60 é 180

° Assim, eles se verão no mesmo lugar após 180 minutos;

Número de horas = 180/60 = 3 horas

6 0

2 years ago