Please help i will mark you brainiest
Select ALL the situations classified as exponential decay.

1. the temperature of a hot cup of coffee left on the counter every minute

2. the amount of a radioactive element remaining in a sample every decade

3. the amount of money in a savings account that earns interest annually

4. the monthly sales of albums by a band whose popularity is declining

5. the value of a home in a growing community every year

Answer:

41

Step-by-step explanation:

1/2 x 10 x 8.2

We will convert the decimal to fraction first

1/2 x 10 x 41/5

Then we will reduce the numbers with the greatest common factor (5)

5 x 41/5

We will remove the fives since they are the common factors

And we will remain with the answer 41

Answer:

The vertex of the parabola is at (1,5), opens upwards, the y-intercept is at (0,6), and the axis is at y=1

Step-by-step explanation:

Answer:

1) y = 30x (same thing as y = 30x + 0)

2) y = 24x (same thing as y = 24x + 0)

3) 270

4) 216

Step-by-step explanation:

Hope this helps :)

Answer:

(5, 7)

Step-by-step explanation:

M = (x1 + x2/2 , y1 + y2/2)

M = ( 4 + 6 /2 , 7 + 7 / 2)

M = 5, 7

Answer:

To make a profit and pay operating expenses, banks typically charge for the services they provide. When a bank lends you money, it charges interest on the loan. Even fee-free checking and savings accounts have some fees.

Step-by-step explanation:

have a nice day ;)

Answer:

A possible answer could be:

Charging small fees for a specific service is another way to pay for that service and to help the bank make money. Fees are also used to discourage bad behavior, like making overdrafts.

Step-by-step explanation:

hello so the answer is 3147831740.3424

Answer:

C. 6.2 inches

Step-by-step explanation:

There are many ways to do this but I like to cross the miles out by putting it on the denominator

927 miles * 1 inch/150 miles = 6.18

Rounded is 6.2

Answer:

6.2

Step-by-step explanation

it should be this I took the same test last year let me know if Im worng

Answer: C

Step-by-step explanation:

i may be wrong though

Answer:

This one is B as well

Step-by-step explanation:

Hope This Helps :)

Answer:

the first one

Step-by-step explanation:

it doesn't describe that

Answer: It describes the distance between 6 and -6 on the number line.

Step-by-step explanation:

Answer:

$45,262  

multiply 45000*6.5%

Step-by-step explanation:

Answer:

$2762.5

Step-by-step explanation:

6.5%×42,500=2762.5

$2762.5 is the sales tax being charged.

$45,262.5 is the total price.

Answer:

D

Step-by-step explanation:

Answer:

Triangle 1: 9

Square: 57.76

Triangle 2: 20.91

Step-by-step explanation:

Square area formula: area=[tex]side^{2}[/tex]

Triangle: area=[tex]\frac{height x base}{2}[/tex]

Answer:

C

Step-by-step explanation:

like terms are terms that are the same, so in c its 7x and 9x. so when you add them it will be 16x, or you can multiply them or do whatever you want with them

Answer:

A: 5.89 liters

Step-by-step explanation:

I got it correct on a quiz I did that had this question.

Answer:

7

Step-by-step explanation:

absolute value is the positive numeric value of the number between the lines.

Answer:

you have exactly one

Step-by-step explanation:

hope it helped

Answer:

C

Step-by-step explanation:

Hope it helps ¯\_(ツ)_/¯

Answer:

the answer is C :))

Step-by-step explanation:

Answer: C

Step-by-step explanation:

The area of a circle is ∏r2- (Pi)(Radius)-squared

The Answer is C

9514 1404 393

Answer:

  a = 1

Step-by-step explanation:

The altitude is perpendicular to line QR, so point Q lies on a line through R that is perpendicular to the given altitude line. The given altitude line has a slope of -1. This means line QR will have a slope of 1, so the line QR in point-slope form is ...

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

  y -4 = 1(x -3)

Since point Q(a, 2a) is on this line, its coordinates will satisfy this equation.

  2a -4 = a -3

  a = 1 . . . . . . . . add 4-a to both sides

_____

The line with slope 2 on the attached diagram is the locus of all possible points Q. The one of interest is the one that is on the perpendicular through R.

__

Additional comment

In order for a line to be an altitude to side QR, it must go through point P. The given line (y=-x+6) does not go through point P. We assume that the line y=-x+5 is the one that is intended.

Answer:

the number of weeks she needs to save.

Answer:

Step-by-step explanation:

Here a = 8, b = 4 and c = -2.  The discriminant here is b^2 - 4ac, which, when the above coefficients are substituted, results in:

discriminant = (4)^2 - 4(8)(-2), or 16 + 64, or 80.

The solutions are:

      -(4) ± √80         -4 ± 4√5        4(-1 ±√5)        -1 ± √5

n = ------------------ = ----------------- = --------------- = --------------

            2(8)                    16                 4^2                  4

Question:

In triangle TUV, the measure of angle V = 90°, TV = 56, UT = 65, and VU = 33. What is the value of the tangent of angle U to the nearest hundredth?

_________________________________________________

Solution:

The triangle should look like that in the attachment.

Tangent of U = opposite side/adjacent side.

= 56/33

= 1.69696969.....

Rounding off to nearest hundredth,

= 1.697

Answer:

I am pretty sure its 68

Step-by-step explanation:

10 * 2 + 18 * 2 + 6 * 2

Answer:

1

Step-by-step explanation:

Answer:

They each will get 1/3

Step-by-step explanation:

Answer:

10%

Step-by-step explanation:

There are 10 hats total, one of them being baseball. You can put this into a fraction: 1/10. Divide that fraction and you get 0.1, or, 10%