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3 years ago

Find f(3) if f(x)=-3x-6

Mathematics

1 answer:

Nikitich [7]3 years ago

6 0

Answer:

-3(3)-6=-15

Step-by-step explanation:

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Problem

Stels [109]

Answer:

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

Step-by-step explanation:

Remember that the velocity v equals the distance d between time t.

$v=\frac{d}{t}$ and $t*v=d$

The distance that Hal travels when traveling with the wind is:

$(2\ hours)(v + c) = 600$ miles

Where v is the speed of Hal and c is the wind speed.

The distance when traveling against the wind is:

$(3\ hours)(v-c) = 600$ miles

Now we solve the first equation for v

$(2)(v + c) = 600$

$2v + 2c = 600$

$2v= 600-2c$

$v= 300-c$

Now we substitute the value of v in the second equation and solve for c

$3((300-c)-c) = 600$

$3(300-2c) = 600$

$900-6c = 600$

$-6c = 600-900$

$-6c = -300$

$6c = 300$

$c = 50\ miles/h$

Then:

$v= 300-(50)$

$v= 250\ miles/h$

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

7 0

3 years ago

Find three consecutive integers whose sum is 48

mart [117]

Answer:

our numbers should be 15, 16, and 17.

Step-by-step explanation:

n + n+1 + n+2 = 48.

8 0

3 years ago

Tom spent 153 minutes completing a race. He walked 63 minutes and jogged the rest. What is the ratio of time he jogged to time h

ra1l [238]

Subtract 153-63=90 and I am pretty sure that's what you have to do

5 0

3 years ago

Read 2 more answers

Choose one of the factors of x3 − 1331.

Dmitry [639]

Answer A) x-11
Hope this helps!

3 0

3 years ago

Read 2 more answers

Consider the diagram. Lines a and d are?

marta [7]

Answer:

perpendicular

Step-by-step explanation:

They form a 90 degree angle

5 0

2 years ago