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3 years ago

If f(x)=5x-7 and g(x)√x-2 which statement is true?

1 answer:

8 0

If f ( x ) = 5 x - 7
f ( 5 ) = 5 * 5 - 7 = 25 - 7 = 18
- 5 is in the domain
g ( 5 ) = √ ( 5 - 2 ) = √ ( - 3 ) ( this is an irrational number )
- 5 is not in the domain.

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In a baseball league consisting of 15 teams, each team plays each of the other teams three times. How many games will be played

denis23 [38]

Answer:

315

Step-by-step explanation:

Each of the 15 teams plays each of the other 14, for a total of 210 games. However, that count includes both A playing B and B playing A. Hence, if the teams meet 3 times, the total number of games will be 3/2 this amount:

(15)(14)(3/2) = 315 . . . league games

5 0

3 years ago

3/5 of a number is 30. What is the number? 10 20 es 18 15

S_A_V [24]

Answer:

Step-by-step explanation:

$\frac{3}{5}*x=30\\x=30*5/3=50$

4 0

3 years ago

The function h=-16t^2 +1700 gives you the height h, of an object in feet, at t seconds. How long will it take the object to hit

garik1379 [7]

Answer:

The object will hit the ground after 10.308 seconds.

Step-by-step explanation:

h(t) = -16t² + 1700

If you graphed this function, the object would be shown hitting the ground when it crosses the x-axis, in other words, when h = 0. So, to find the answer, just set h(t) equal to 0 and solve.

-16t² + 1700 = 0 Plug this into a calculator if you have one.

t = -10.308 and t = 10.308

Since time can't be negative, your answer will be the positive value, 10.308.

6 0

3 years ago

Please help. due today.

guapka [62]

Answer:

1, 1/2, 1 1/2

Step-by-step explanation:

Question 1

20 divided by 18 is 1.1

So the answer is closest to 1

Question 2

9 divided by 20 is 0.45

So the answer is closest to 1/2

Question 3

7 divided by 5 is 1.4

So the answer is closest to 1 1/2

Hope this helps!

3 0

3 years ago

What is 1 3/4 + 1/8 I rly need help tjxs

Andru [333]

The answer is 1 and 7/8, all you have to do is turn the 3/4 into eighths.

8 0

4 years ago