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3 years ago

Consider exponential function h. h(x) = 3x + 4

Mathematics

1 answer:

GarryVolchara [31]3 years ago

5 0

The function is always positive.

(0,5) is the y-intercept, since the graphed line never crosses the x axis, there is no x-intercept.

The function is positive and greater than 4 for all values of x

Not sure what the actual choices are on a couple of the questions. The choices would help answering.

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( PLEASE HELP ASAP ) Solve for the formula

mojhsa [17]

Answer:

C .r=√A/π

Step-by-step explanation:

A=πr²

r²=A/π

Taking sq roots on both sides

r=√A/π

8 0

3 years ago

The second part of the problem is where i need help. The answers i have there have been given by other tutors

tino4ka555 [31]

SOLUTION

From the given value

Since

$\sin u=\frac{7}{25}$

Then using trigonometrical ratios it follows

$\cos u=\frac{24}{25}$

Using hal -ngle it folows

$\begin{gathered} sin(\frac{u}{2})=\sqrt{\frac{1-\frac{24}{25}}{2}} \\ s\imaginaryI n(\frac{u}{2})=\sqrt{\frac{1}{50}} \end{gathered}$

Also

$\begin{gathered} cos(\frac{u}{2})=\pm\sqrt{\frac{1+\frac{24}{25}}{2}} \\ cos(\frac{u}{2})=\sqrt{\frac{49}{50}} \\ cos(\frac{u}{2})=7\sqrt{\frac{1}{50}} \end{gathered}$

Finally?

$\begin{gathered} \tan(\frac{u}{2})=\pm\sqrt{\frac{1-\frac{24}{25}}{1+\frac{24}{25}}} \\ \tan(\frac{u}{2})=\sqrt{\frac{1}{49}} \\ \tan(\frac{u}{2})=\frac{1}{7} \end{gathered}$

3 0

1 year ago

Lucas's computer took 8 minutes to download 30 songs. How many seconds per song did it take his computer to download?

Aleks04 [339]

Answer: 16 seconds.

Step-by-step explanation:

Step 1: Convert the 8 minutes to seconds:

8 minutes = 480 seconds

Step 2: Divide The 480 seconds by the 30 songs Downloaded:

480 / 30 = 16

Answer: it took Lucas 16 seconds to download 1 song.

3 0

3 years ago

2. Mark has scored 12, 14, 10, 8, and 5 points in the past 5 basketball games. Write and solve the inequality that

marusya05 [52]

Answer:

Mark must score at least 11 points to have an average of 10 points per game.

Step-by-step explanation:

The average of a set of data is its sum, divided by the number of data points in the set. If p is the number of points Mark scores in his next game, and he wants his average at least 10, then the relation is ...

(12 +14 +10 +8 +5 +p)/6 ≥ 10

49 +p ≥ 60 . . . . . . . . . multiply by 6 and simplify

p ≥ 11 . . . . . . . . . . . subtract 49

Mark must score at least 11 points in the next game to average at least 10 points per game.

_____

Additional comment

Sometimes, it is convenient to work with the average directly. Relative to the average Mark wants (10), his scores so far are +2, +4, 0, -2, -5, for a total of -1. In order to bring the average to the value Mark wants, he must bring this total to 0 or higher. That is, he must score at least 10+1 = 11 points in his next game.

5 0

2 years ago

What is the value of this expression? 1.5(−2.4+(−5.3))

Ahat [919]

Answer:

-11.55

Step-by-step explanation:

(to get the numbers out of the brackets you have to multiply all the numbers in the brackets to the number that is there, and in this case its 1.5)

1.5x(-2.4)= -3.6

1.5×(-5.3)= -7.95

after that, you add them (because there is a plus sign, not a minus, multiplication sign or a division sign.)

-7.95+ -3.6= -11.55

answer= -11.55

7 0

3 years ago