Can you help me with this question?

Answer:

2441.95 years

Step-by-step explanation:

We can model this exponencial function as:

P = Po * (1+r)^(t/n)

Where P is the final value, Po is the inicial value, r is the rate, t is the time and n is the period of half-life.

In this case, we have that P/Po = 100% - 25.5% = 74.5% = 0.745, r = -0.5 and n = 5750, so we have that:

0.745 = (1 - 0.5)^(t/5750)

Step 1: log in both sides:

log(0.745) = (t/5750) * log(0.5)

Step 2: isolate t

t = 5750*log(0.745)/log(0.5) = 2441.95 years

Answer:

92

Step-by-step explanation:

The two angles add to make a straight line, so their sum is 180

88+x = 180

Subtract 88 from each side

88+x-88 = 180-88

x =92

Answer:

92

Step-by-step explanation:

Answer:

y = 4

y = 0

Step-by-step explanation:

Step  1  :

Equation at the end of step  1  :

 5y • (y - 4)  = 0  

Step  2  :

Theory - Roots of a product :

2.1    A product of several terms equals zero.  

When a product of two or more terms equals zero, then at least one of the terms must be zero.  

We shall now solve each term = 0 separately  

In other words, we are going to solve as many equations as there are terms in the product  

Any solution of term = 0 solves product = 0 as well.

Solving a Single Variable Equation :

2.2      Solve  :    5y = 0  

Divide both sides of the equation by 5:

                    y = 0

Solving a Single Variable Equation :

2.3      Solve  :    y-4 = 0  

Add  4  to both sides of the equation :  

                     y = 4

Hope this helps

Answer:

Your question that I have solved:

y= 0,4

Step-by-step explanation:

Answer:

The volume of the prototype is 200 cubic inches.

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of the pentagonal prism:

Volume (V)= base area x height of the rectangular face

Replacing with the values given and solving for V (volume)

V = 20 in2 x 10 in = 200 cubic inches

The volume of the prototype is 200 cubic inches.

Feel free to ask for more if needed or if you did not understand something.

The volume of the prototype is 200 cubic inches.

Since The designer uses pentagons with a base area of 20 in2 and rectangles with a length of 10 in

So, here the volume is

= 20(10)

= 200 cubic inches

Therefore, The volume of the prototype is 200 cubic inches.

Learn more about volume here: https://brainly.com/question/11826100

Answer:

A. 60°

Step-by-step explanation:

There's a very straight-forward explanation for this, thank god! XD

For this type of problem, there's a rule to follow for the outside angle. X and 120 should equal 180, so all you need to do is fill that gap.

180-120 = 60

60 is your answer because it completes the whole angle.

Answer:

(0,0)

Step-by-step explanation:

Answer: 75 degrees

Step-by-step explanation: supplementary means 180 so you do 180-105 which is 75

Answer:

no, because in a function, the input is paired or has only one output, but here 20 is paired to both 40 and 42, which doesn't make it a function.

Answer:

29

Step-by-step explanation:

1/2+1+1+1+1/2=4

1/2+1+1+1+1+1/2=5

1/2+1+1+1+1+1/2=5

1/2+1+1+1+1+1+1+1/2=7

1+1+1+1+1+1+1+1=8

8+7+5+5+4=29

15+10+4=29

25+4=29

29=29

Answer:

The functions share a y intercept of -1

Step-by-step explanation:

Both functions cross the y axis and y=-1 and x=0

They both have the same y intercept

Answer:

B

Step-by-step explanation:

240+240=480

yes

Answer:

B. 480

Step-by-step explanation:

You can find the answer to this by finding the unit rate of Ross's travel. 240:4=60:1, meaning that he drives at 60 miles per hour. Multiplying this by 8 hours, you get 480 miles. Hope this helps!

Answer:

2037.75m/s

Step-by-step explanation:

To calculate the speed of a wave, you need to multiply the wavelength by the frequency. In this case, 627*3.25=2037.75m/s. Hope this helps!

The speed of a sound wave with a frequency of 627 hz and a wavelength of 3.25 m is calculated using the formula v = f λ, where v is the speed, f is the frequency, and λ is the wavelength. Multiplying the given frequency and wavelength gives a speed of 2037.75 m/s for the sound wave.

The speed of a sound wave is calculated by multiplying its frequency by its wavelength using the formula v = f λ, where v is the speed of the wave, f is the frequency, and λ (lambda) is the wavelength.

Given that the frequency of the sound wave is 627 hz and the wavelength is 3.25 m, we can substitute these values into the formula to find the speed:

v = 627 hz × 3.25 m

Now, let's perform the multiplication to solve for v:

v = 2037.75 m/s

Therefore, the speed of the sound wave is 2037.75 meters per second.

Answer:

An exothermic reaction releases energy

Step-by-step explanation:

Answer:

releases

Step-by-step explanation:

Answer for Founder's Education/Educere

Answer:

I would think 28

I may be wrong but y'know

Why 28?

well it's going to touch a box every 8 boxes and 28 is the only one with 28

I hope this is right sorry if it's not.

Final answer:

To calculate the number of square units of cardboard used to construct Stacey's cookie box, we need the box's dimensions to find the surface area. If the box were similar to a 9x9x4 inch doughnut box mentioned in the examples, the calculation would result in 306 square inches. Without the exact dimensions, we use the formula for surface area and round to the nearest tenth if necessary.

Explanation:

To determine how many square units of cardboard were used to construct Stacey's cookie box, we need to calculate the surface area of the box. However, the question does not provide the exact dimensions of the solid, so let's assume that we have the length, width, and height of the box. Then, the surface area of the box can be calculated as twice the sum of the length times width, length times height, and width times height (2(lw + lh + wh)).

As an example, if the box had dimensions of length (l), width (w), and height (h), and let's say that l=9 inches, w=9 inches, and h=4 inches, similar to the doughnut box mentioned in the provided information, the surface area would be:

Surface area = 2(lw + lh + wh) = 2(9*9 + 9*4 + 9*4) = 2(81 + 36 + 36) = 2*153 = 306 square inches

Now, if Stacey's cookie box has different dimensions, you would plug those values into the surface area formula instead. If the calculated surface area is not a whole number, the question advises to round to the nearest tenth.

Answer: 17-3.99a

Step-by-step explanation:

Remove parentheses.

17- 0.07a- 3.92a17−0.07a− 3.92a

Collect like terms.

17+(−0.07a−3.92a)

Simplify.

17−3.99a

Answer:

2^2*4*5^2*9=900

Step-by-step explanation:

900= 100*9

100=20*5

20=5*4

4=2*2

2*2*4*5*5*9=900=

2^2*4*5^2*9=900

Hope this helps!

Answer:

2×2×3×3×5×5

2²×3²×5²

Step-by-step explanation:

Hope this helped (:

Answer:

6

There are three people, so 3x2x1 is 6

Erik could stand in all three spots, Mina could stand in two of the available spots, and then there's only one left for Roger

Even if you flip the characters around, it's still 6

If it helps to draw it so you can visually see it, that would be a great idea

:)

Answer:

864cm squared

Step-by-step explanation:

Formula for Lateral Area:

Lateral Area=1/2* (Perimeter of the Base)*Height

The Perimeter of the Base = 72cm

Height = 24

Answer = 1/2* 72* 24

Answer = 864cm squared

Answer:

The correct one is the one that you have clicked on already.

Step-by-step explanation:

Answer:

A = 4 in^2

Step-by-step explanation:

The area is given by

A = l*w

A = 1in * 4 in

A = 4 in^2

Answer:

0        1/2   7/8   1      2    -2.75    -3  

Explanation:

(1. Absolute value is the distance a number is from zero. It can only be positive. For example, the absolute value of -8 is 8 because it is 8 units away from zero. More examples: The absolute value of 5 is 5 because it is 5 units away from zero. The absolute value of -6.75 is 6.75 because it is 6.75 units away from zero.

(2. Because we know this, we can put the order as 0, 1/2, 7/8, 1, 2, -2.75, and -3. -3 is 3 units away from zero which is more than the absolute value of -2.75 which is 2.75 units away from zero.

(3. The absolute value of a number is basically just making the number positive. If the number is already positive then the absolute value of that number is that number.

Hope you understand!

Answer:

You're correct, it's 7.5!

Step-by-step explanation:

15% is still 15/100. So, if you to divide 100 by 2 to convert it to 50, then you divide 15 by 2 as well! And the answer to that is 7.5.

Answer:

each piece will be 3 1/4 inches

Step-by-step explanation:

22 3/4 can be rewritten as 91/4. to divide, you use keep, change, flip (keep the first fraction, change the sign, and flip the second fraction) . u will end up with 91/4 times 1/7, which is 91/28 or 3 1/4

Each piece of ribbon will be 3(1/4) inches.

Expressions is the defined as mathematical statements that have a minimum of two terms containing variables or numbers.

[tex]22\dfrac{3}{4}[/tex]

This expression can be rewritten

[tex]\dfrac{88+3}{4} = \dfrac{91}{4}[/tex]

Since ribbon has to be divided into 7 equal pieces

[tex]\dfrac{\dfrac{91}{4}}{7}[/tex]

[tex]\dfrac{91}{4} \times\dfrac{1}{7}[/tex]

[tex]\dfrac{91}{28} = \dfrac{13}{4}[/tex]

[tex]3\dfrac{1}{4}[/tex]

Learn more about expression here:

brainly.com/question/13947055

#SPJ2

Answer: C

Step-by-step explanation:

4 * 2=  8

4 *2 = 8

6 * 1 = 6/2 = 3

6 *1 = 6/2 =3

6* 2 = 12

12 + 3 +3 +8 +8 = 34

Answer:

A = x(x − 4) − 0.5(8)(x − 4) − 3(7)

Step-by-step explanation:

x = length, making the width (x-4)

The stage closet will be (x-4)(8)(1/2)

The rectangle is 7(3)

That makes the painted area x(x-4) - 4(x-4)

So...

A = x(x − 4) − 0.5(8)(x − 4) − 3(7)

The printed area of the theater room is x(x − 4) − 0.5(8)(x − 4) − 3(7). Then the correct option is D.

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

A local school needs to paint the floor of its theater room, where the length of the floor, x, is at least 11 feet.

The width of the floor is 4 feet less than the length.

It will have a stage and a closet, and the remaining area of the floor will be painted.

Let, the length be x

Then the width will be (x - 4)

Then the stage closest will be

[tex]\dfrac{8(x- 4)}{2} \Rightarrow 4(x-4)[/tex]

The rectangle is 7(3)

The painted area will be given as

[tex]\rm x(x-4) - 4 (x-4)[/tex]

Then we have

[tex]\rm area = x(x - 4)- 0.5(8)(x - 4) - 3(7)[/tex]

More about the geometry link is given below.

https://brainly.com/question/7558603

Have you learned PEMDAS? (Parenthesis, exponents, multiplication, division, addition, subtraction). That is what I am going to do here.

The first parenthesis, let's solve. 7*10=70-5=65

The second parentheisis: I am assuming the negative sign is a typo, and this answer will be off if it is not. Sorry. 5*10=50

65*50=3250

I hope this helps, and let me know if you need further assistance.