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2 years ago

The function f(x) = a^x + 4 will never cross the x-axis if a is positive. True or False?

Mathematics

1 answer:

Jet001 [13]2 years ago

8 0

Answer:

True

Step-by-step explanation:

If a is negative then the shape of the graph is an upside down U, which intersects the x-axis. If a is positive it will never cross the X axis.

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55% of what number is 70? Round to the nearest tenth.

umka2103 [35]

55% of x is 70
0.55 times x=70
divide both sides by 0.55
127.27272727
round
127.3

5 0

3 years ago

Read 2 more answers

HELP ME PLEASE. explain step by step

andrew11 [14]

Use the order of operations!
Parentheses (Purple)
Exponent (Elephants)
Multiply (Marching)
Divide (Down)
Add (A)
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7 0

3 years ago

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A polynomial function p has zeros of 2, 2, −3, −3, −3, and 4.Find a possible formula for P, and state its degree.Why is the degr

Svet_ta [14]

Answer:

Step-by-step explanation:

p(x)=(x-2)²(x+3)³(x-4)

degree=6

degree =number of zeros

6 0

3 years ago

A flying carpet flies 2.4 miles with the wind in the same amount of time it flies 1.4 miles against the wind. The wind speed is

Ainat [17]

Answer:

$15.2~mph$

Step-by-step explanation:

Let the time flown by the flying carpet be $t$ . Then, we have that $(2.4)/t=(1.4)/t+2*4$ .

We multiply both sides of the equation by $t$ to get $2.4=1.4+8t$ .

We subtract $1.4$ from both sides to get $1=8t$ .

We divide both sides of the equation by $t=1/8$ .

We know that the speed of the flying carpet in still wind is the average of the rates of the speed of the flying carpet with the wind and against the wind.

The speed with wind is $(2.4)/(1/8)=19.2$ mph.

The speed against wind is $(1.4)/(1/8)=11.2$ mph.

The speed in still wind is $(19.2+11.2)/2=(30.4)/2=15.2$ .

Therefore, the answer is $\boxed{15.2~mph}$ and we're done!

4 0

3 years ago

26. -2, 3, 8, 13, 18,...

-Dominant- [34]

Answer:

each number is being added by 5

Step-by-step explanation:

5 0

3 years ago