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laiz [17]
3 years ago
10

Please help with these questions!!:))

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0

Answer:

The first one : decay

The second one : growth

When the argument of the exponential expression is bigger that 1 then it represents a growth

When it's less than 1 and above 0 then it's a decay

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Write the equation of the graph which is the reflection of y=−|x−1|−1 about the origin
Norma-Jean [14]

Answer:

f(x) = |x + 1| + 1

Step-by-step explanation:

A reflection over the y-axis followed by a reflection over x-axis is equivalent to a reflection about origin.

f(x) = -|x-1| -1

reflection over the x-axis:

-f(x) = (-1)*(-|x-1| -1) = |x-1| +1

reflection over the y-axis of the previous function:

-f(-x) = |-x-1| +1 = |x + 1| + 1

which is the reflection of f(x) about the origin

6 0
3 years ago
How do i solve for x
Basile [38]

Answer: x = 14


Step-by-step explanation:

the whole triangle's area 180 so you would add up all the angles and 66+62+38= 166 and 180-166=14 so 14 would = x


5 0
3 years ago
Sarina throws a ball up into the air, and it falls on the ground nearby. The ball's
Anuta_ua [19.1K]

Answer:

Option C.

Step-by-step explanation:

It is given that the ball's height, in feet, is modeled by the function

f(x)=-x^2-x+3

where, x represents time in seconds.

We need to find the height of the ball when Sarina throws it. It means, we need to find the initial height of the ball.

Substitute x=0 in the given function, to find the initial height.

f(0)=-(0)^2-(0)+3

f(0)=0+0+3

f(0)=3

The height of the ball is 3 feet when Sarina throws it.

Therefore, the correct option is C.

8 0
3 years ago
Read 2 more answers
Tremaine: wants a one bedroom townhouse in a trendy new development downtown; average cost is $145,000 is preapproved for a 4.38
Lina20 [59]

Using the monthly payment formula, it is found that the amount he will have to pay each month is of $649.45.

<h3>What is the monthly payment formula?</h3>

It is given by:

A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}

In which:

  • P is the initial amount.
  • r is the interest rate.
  • n is the number of payments.

In this problem, considering that the down payment does not count for interest, the parameters are given as follows:

P = 130000, r = 0.0438, n = 30 x 12 = 360.

Then:

r/12 = 0.0438/12 = 0.00365 -> 1+r = 1.00365.

Then the monthly payment is given by:

A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}

A = 130000\frac{0.00365(1.00365)^{365}}{(1.00365)^{365} - 1}

A = 649.45.

More can be learned about the monthly payment formula at brainly.com/question/2151013

#SPJ1

3 0
2 years ago
What is the discriminant of the quadratic equation 0 = –x2 4x – 2?
lyudmila [28]
The answer is down the page under ANSWER. here is a quick explanation first.

okay, i assume your equation is actually like this:

minus x squared plus 4 x minus

note: the proper way to type this electronically is: -x^2 + 4x - 2.



The equation you gave is known as a quadratic equation.

if you think about it, the generic (general) way of writing this quadratic equation is:

ax^2 + bx + c


a, b and c are just numbers

eg.

2x^2 + 7x + 4

looking at the general equation above

a is 2
b is 7
c is 4

you can put negatives in as well, to find out a, b and c

eg

-2x^2 - 6x - 12


so, what is a b and c?

a is -2 (must say its negative)
b is - 6 (must say negative)
c is - 12 ( again, remember its a negative number)

ANSWER

IF YOU JUST WANT THE ANSWER.

THE DISCRIMINANT IS:

4 squared minus (4 times -1 times -2)
this is 16 - 8
solution of discriminant is 8


explanation:

so, now we cleared that up.
in any quadratic equation ( like the equation you gave), the discriminant is (in general)


b2 - 4ac

use this to solve it for any quadratic equation for the discriminant
3 0
3 years ago
Read 2 more answers
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