The half-life of a radioactive element is five years. A scientist has 18 grams of the element. The equation
representing the number of grams, g, after x years is §. What is the annual rate of decay?
g=18(0.5)

The complete factor of the expression [tex]\rm 3x (x +2) + 4 (x +2)[/tex] is [tex]\rm(x+2)(3x + 4)[/tex]. Then the correct option is A.

It is the method to separate the polynomial into parts and the parts will be in multiplication. And the value of the polynomial at this point will be zero.

The expression is [tex]\rm 3x (x +2) + 4 (x +2)[/tex].

To solve the expression properly we have to take common (x+2). Then we have

[tex]\rm 3x (x +2) + 4 (x +2)\\\\(x+2)(3x + 4)[/tex]

The correct factor is (x + 2)(3x + 4).

More about the factorization link is given below.

https://brainly.com/question/6810544

Answer:

Yup A

Step-by-step explanation:

Answer: -31

Step-by-step explanation:

5x³- 3x + 2 = 0

a = 5, b = -3, c = 2

(-3)² -4 × 5 × 2

-31

The equations that describe the given circles are:

x^2 + y^2 = 4

x^2 + y^2 = 64

For a circle of radius R, centered at the point (a, b), the equation is:

(x - a)^2 + (y - b)^2 = R^2

In this case, we have two circles, both centered on (0, 0), but one has a radius of 2 units and the other a radius of 8 units, then we have two equations:

x^2 + y^2 = 2^2 = 4

x^2 + y^2 = 8^2 = 64

These are the two equations that describe the given circles.

If you want to learn more about circles, you can read:

https://brainly.com/question/25306774

Step-by-step explanation:

First off, no sides have the same length as the others, so it cannot be an equilateral or an isoceles triangle, as it would required at least 2 sides to have the same length.

So, we're left with scalene triangle options.

There is an angle that is an obtuse angle (as it is more than 90 degrees and less than 180 degrees), so this is a scalene obtuse triangle.

Answer:

Lets say we have (-1)^(1.5)

Step-by-step explanation:

(-1)^(1.5) = (-1)^(3/2)

= (√(-1))^3 which has no solution in the real number field, as √(-1) does not exist.

In the complex number field √(-1) = i, and (-1)^(1.5) = i^3 = -i.

Answer:

Simplify the expression.

X+10x+1

Answer:

X+10x+1

Step-by-step explanation:

this would be your answer

Answer:

Texans fought in the Civil War for states' rights, sectionalism, and to keep their slaves.

Texans fought in the Civil War to protect State Rights.

Answer:

$20.70

Step-by-step explanation:

5 × $3.70 = $18.50 + $2.20 =

$20.70

Answer:

$12.50

Step-by-step explanation:

The shop offers a discount, buy 8 pounds for the price of 5.

Answer:

20

Step-by-step explanation:

10 plus 10 is 20 and 4 pounds is 10 therefor its 20

Answer:

112 pizzas

Step-by-step explanation:

There are 60 minutes in an hour, means that Sal's pizza shop can make 28 pizzas an hour. Multiply this by 4 to get 112

Answer:112

Step-by-step explanation: I got you Breh

You see first you divide 4 hours by 15 minutes and you get 16 minutes.

To confirm that you can do 16 x 15 and it would be 240, and 4 hours is 240 miniutes.

Now you multiply 16 by 7 and you get 112

Hope this helps

Answer: Assume π = 3.14(rounded upto two decimal point)

Case I. 1 year = 365 days

2 years = 730 days

3 years = 1095 days

And .14 years = 51 days 2 hours 24 minutes

So, 3.14 years = 1146 days 2 hours 24 minuts.

Now, suppose you born in a leap-year.

Case II. 1 year = 366 days

2 years = 732 days

3 years = 1098 days

and .14 years = 51 days 5 hours 45 minutes 36 seconds

Then, 3.14 years = 1149 days 5 hours 45 minuts 36 seconds

So, yes, it is possible to be exactly π years old. At exactly 1146 days 2 hours 24 minutes or 1149 days 5 hours 45 minutes 36 seconds (in case of a leap-year born), we could have celebrate at our π years birthday.

Step-by-step explanation:

Answer: Joining a gang will not give you more protection; it could enhance your chance of being targeted as a victim. Gang members make far less money than those who do not join gangs. Gang members usually don't get a good education, making it hard to find a good job. Gang involvement increases your risk of being arrested, having to go to court, being put on probation or parole, being jailed, injured, or even killed. Being a gang member is a dangerous thing. Often, members realize this once they have joined the gang and want to leave. It is never easy to leave a gang because as a member you have information that could be shared with authorities like the police – and as a result, get the gang members in trouble. You would always be getting in trouble with the law because you would apart of a gang group. Gangs often steal, break in peoples houses, break in to their cars and etc. Gang members leave you to take the blame so the other ones would not get caught and go to jail. Being in a gang is really bad for you because if you did didce to leave the gang then they might come and kill you and your family because they have no respect for other people.

Hope it helps

Answer:

B

Step-by-step explanation:

I got it right in ed2022

Answer:

Correct, answer is indeed 24.

Step-by-step explanation:

took the quiz

Answer:

something attained by mental effort and especially by computation

is called a solution, When you solve you get the solution meaning you have to tryed and never given up , to gain the solution.

Answer:

64

Step-by-step explanation:

a = 235

b = 299

d (difference) = b - a

d = 299 - 235

d = 64

Answer:

-33/16

I'm pretty sure it is c sorry if not may be -39/16

Answer:

[tex]11 \frac{2}{3} [/tex]

Years

Step-by-step explanation:

Let x be his current age

[tex] \frac{3}{5} x - 4 = 0 \\ x + 5 = [/tex]

Solve the expression:

[tex] \frac{3}{5} x - 4 = 0 \\ + 4 \\ \frac{3}{5} x = 4 \\ \times \frac{5}{3} \\ x = 4( \frac{5}{3}) \\x = \frac{20}{3} \\ x = 6 \frac{2}{3} [/tex]

[tex]x + 5 \\ 6 \frac{2}{3} + 5 \\ 11 \frac{2}{3} [/tex]

Answer:

( 8 , 15 , 24 )

option d is the correct answer

By getting the exponential decay that models the situation, we will see that after 8 weeks she uses 0.12 cups.

We know that the first week, she uses 2 cups of sugar, and each week she uses removes one-third of what she used the previous week.

Then the second week she uses:

S₂ = 2 cups - (1/3)*(2 cups) = 2 cups*(1 - 1/3) = 2 cups*(2/3)

The third week she uses:

S₃ = 2 cups*(2/3) - (1/3)*2 cups*(2/3) = 2 cups*(2/3)^2

You already can see the pattern, at week x, she will use:

Sₓ = (2 cups)*(2/3)^(x - 1)

This is an exponential decay.

To get how much sugar does she uses after 8 weeks, we just replace x by 8 in the above equation:

S₈ = (2 units)*(2/3)^(8 - 1) = 0.12 cups of sugar.

If you want to learn more about exponentials, you can read:

https://brainly.com/question/11464095

Answer:

44 sq. in.

Step-by-step explanation:

Area (total) = (1/2)(3)(4) + 10(3) + (1/2)(8)(2)

= 6 + 30 + 8

= 44 sq. in.

Answer:

I think it's C

Step-by-step explanation:

360°-232° = 128°

Answer:

60°

Step-by-step explanation:

The internal angLe is 60°

Step-by-step explanation:

The ones that apply are:

1) 10t + 5s = 190

2) t + s = 30

No. 1 is because each tumbler is $10 making 10t and each hat is $5 making 5s and the total sales is $190

No. 2 is because the total tumblers and hats sold add up to 30

Sometimes all you need is a different perspective :)

Hope this helps!

Please mark as brainliest :)

Answer:

[tex]\sf 4[/tex]

Explanation:

[tex]\sf \frac{1}{4} (15+h)-g[/tex]

[tex]\sf given: h = 5 , \ g = 1[/tex]

solve:

[tex]\sf \frac{1}{4} (15+5)-1[/tex]

[tex]\sf \frac{1}{4} (20)-1[/tex]

[tex]\sf 5-1[/tex]

[tex]\sf 4[/tex]

Answer:

You need 16 1/4 cups to fill up a 4-cup container.

Step-by-step explanation:

Answer:

X=3, or X=-3   But the positive answer is X=3

Step-by-step explanation:

Rewrite the equation 5x^2+2=47

Subtract 2 from each side -----> 5x^2+2-2=47-2

Simplify   ---------> 5x^2=45

divide each side by 5 ----->  5x^2/5=45/5

Simplify x^2=9

Divide each side by using square root method -->  Sqrt(9)     - sqrt(9)

Now simplify to get X=3, or X=-3

Answer:

1 1/2

Step-by-step explanation: