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Alenkasestr [34]
3 years ago
7

a hyperbola with center at (0,0), with x-intercept at (4,0) and (-4,0), with b=1, and opening horizintally has the equation​

Mathematics
1 answer:
Rina8888 [55]3 years ago
6 0

Answer:

Step-by-step explanation: 4

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Now see if you can solve these word problems about time and distance.
ladessa [460]

Answer:

3.5 hours

Step-by-step explanation:

Ediburgh -------------------------------350 miles-------------------------London

Let the distance traveled by train from Edin to London be "x"

hence the distance traveled by train from London to Edin would be "350-x"

  • The rate of Edin to London train is 60
  • The rate of London to Edin train is 40

Let the time they meet be"t"

Now, we know distance formula to be D = RT

Where

D is distance

R is rate

and

T is time

<u>Train from Edin to London:</u>

x = 60t

<u>Train from London to Edin:</u>

350-x = 40t

Solving for x:

350 - 40t = x

We put this into first equation:

x = 60t

350 - 40t = 60t

350 = 100t

t = 350/100

t = 3.5

They meet after 3.5 hours

4 0
3 years ago
O,my god if you do this 2 pages I will be done with my homework
katovenus [111]

Answer:

1. 8% of 50 is 4

2. 95% of 40 is 38

3. 42% of 263 is 110.46

4. 110% of 70 is 77

5. 115% of 20 is 23

6. 130% of 78 is 101.4

7. 6.5% of 50 is 3.25

37. 15% of 50 is 7.5

38. 5% of 19 is 0.95

39. 8% of 275 is 22

I hope this helps! Can I plz have a Brainliest??

Step-by-step explanation:

6 0
2 years ago
Is (-2,-6) a solution of y &lt; 7x + 8?​
mojhsa [17]

Answer:

not a solution

Step-by-step explanation:

y < 7x + 8

Substitute (2-,-6) into the inequality

-6 < 7(-2) +8

-6 <-14+8

-6 <-6

This is not true because they are equal not less than

6 0
3 years ago
Read 2 more answers
7) Una epidemia mató los 3/7 de las vacas de un granero y de las que le quedaron vendió 1/2. Si todavía le quedaron 24 vacas, ¿C
4vir4ik [10]

Answer:

Habían inicialmente 84 vacas. Murieron 36 vacas. 24 vacas fueron vendidas.

Step-by-step explanation:

Sea x la cantidad inicial de vacas. De acuerdo con el enunciado, murieron tres séptimos de la cantidad inicial y la mitad de ese remanente fue vendida, quedando 24 vacas. Matemáticamente, tenemos las siguientes operaciones:

Cantidad inicial de vacas

x = \frac{24}{\left(1-\frac{3}{7} \right)\cdot \left(1-\frac{1}{2} \right)}

x = 84

Habían inicialmente 84 vacas.

Cantidad de vacas muertas

y = \frac{3}{7}\cdot x

y = 36

Murieron 36 vacas.

Cantidad de vacas vendidas

z = \left(1-\frac{3}{7} \right)\cdot \frac{1}{2}\cdot x

z = 24

24 vacas fueron vendidas.

8 0
3 years ago
Which describes the collection of all points in the same plane that are 8 1/2 inches from Point T?
lukranit [14]

Answer:

circle T with radius 8 and 1/ 2 inches

Step-by-step explanation:

 

5 0
3 years ago
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