A radioactive substance has a half-life of one month, which means that at the end of each month, the level of radioactivity is half the level that it was at the beginning of the month The substance was discovered in the soil
near a high school football field. The table shows the relationship between the radioactivity level found in the soil, r(t)and the number of months since discovery, 2.
2
10
5
25
125
4
Which statement correctly interprets the initial value?

Answer:2

Step-by-step explanation:

Answer:

A. y > -3 All real numbers greater than -3

Step-by-step explanation:

The length of the rectangle is x + 9 whose width is gives as 2x.

To find the length of the rectangle, we need to express it in terms of the width.

Given:

width of the rectangle is 2x.

The formula for the area of a rectangle is

A = length × width.

As, the polynomial function for the area:

[tex]A(x) = 2x^2 + 18x[/tex]

So, set up the equation:

[tex]2x^2 + 18x =[/tex] [tex]{\text} width x length[/tex]

Substituting the given width = 2x in above equation gives

[tex]2x^2 + 18x = 2x * length[/tex]

Dividing both sides of the equation by 2x:

x + 9 = length

Therefore, the length of the rectangle is x + 9.

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Answer: 13,663

Step-by-step explanation:

basically I multiply 427 and32 which u get 13,664 and then u subtract 1 and u get ur answe of 13663

Answer: The velocity of the ball is 108.8 ft/s downwards.

Step-by-step explanation:

When the ball is dropped, the only force acting on the ball will be the gravitational force. Then the acceleration of the ball will be the gravitational acceleration, that is something like:

g = 32 ft/s^2

To get the velocity equation we need to integrate over time, to get:

v(t) = (32ft/s^2)*t + v0

where v0 is the initial velocity of the ball. (t = 0s is when the ball is dropped)

Because it is dropped, the initial velocity is equal to zero, then we get:

v(t) = (32ft/s^2)*t

Which is the same equation that we can see in the hint.

Now we want to find the velocity 3.4 seconds after the ball is dropped, then we just replace t by 3.4s, then we get:

v(3.4s) = (32ft/s^2)*3.4s = 108.8 ft/s

The velocity of the ball is 108.8 ft/s downwards.

Answer:

It is the same-side interior angle of B which is the vertical angle of 100 (?)

Step-by-step explanation:

Answer: 38

Step-by-step explanation:

Answer:

Perimeter= 38, EC- Area= 19.5

Step-by-step explanation:

substitute all the x's for 5. simplify each equation. H=3, Base= 13, 4x+2=22

h- 5-2=3

4(5)+2=22

base- 2(5)=3=13

then add all answers together to get 38.

multiply 13 and 3 to get 39, then divide by 2 to get 19.5 for the area.

Answer:

75 x 4 = 300

Step-by-step explanation:

Ummmm multiplication

Answer:

d

Step-by-step explanation:

school is only 5 days a week and if she walks 60 yards to the bus stop and 60 yards back from the bus stop than she walks a total of 120 yards a day

120 x 5 =600 the answers are in feet so we need to convert to feet and to do that we need to multiply by 3

600x3=1800

so she walks 1800 feet in a normal school week

Answer:

Step-by-step explanation:

282 ounces

But the real answer without rounding it is 282.192 ounces

Step-by-step explanation:

[tex]11 {}^{x - 4} = 121 {}^{x} \\ 11 {?}^{x - 4} = 11 {}^{11x} \\ x - 4 = 11x \\ x - 11x = 4 \\ \\ - 10x = 4 \\ x = - 0.4[/tex]

This is the same as saying x < 0.5 since 1/2 = 0.5

====================================================

Work Shown:

2(1-x) > 2x

2*1 + 2*(-x) > 2x ..... distribute

2 - 2x > 2x

2 > 2x+2x .... adding 2x to both sides

2 > 4x

4x < 2 ..... flip both sides; flip the inequality sign

x < 2/4 ..... dividing both sides by 4; see note below

x < 1/2

Note: We do not flip the inequality sign here because we are dividing both sides by a positive value. The inequality sign would only flip if you divide both sides by a negative number.

Answer:

the answer is 2 or 2/1 hope this helps

Answer:

In fraction form, the slope is 2/1.

Or, the slope is just 2.

Step-by-step explanation:

Using the equation:

m =  

y2 - y1  /

x2 - x1

Plug in the x and y points and solve.

note: m = slope in slope intercept form, y - mx + b

y2 = 14     y1 = 18

x2 = -16     x1 = -14

14 - 18 / -16 -(-14)

-4 / -2

Simplified: -2 / -1

In fraction form, the slope is -2 / -1, or 2/1 because either way works.

Or, the slope is just 2.

Hope this helps! If you have any additional questions, please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe, and please mark brainliest! :)

Answer:

About 2.49 inches I think.

Step-by-step explanation:

Answer:

368<939`01^9292^91 ibtimes

Answer:

600 and 3

Step-by-step explanation:

Answer:

5x+32=45;x=2.6

Step-by-step explanation:

5x+17+15=45

5x+32=45

5x=13

x=2.6

Answer:

x=2.6 is required equation.

perimeter of triangle=45

sum of all sides=45

5x+17+15=45

5x=45-32

5x=13

x=13/5=2.6

The number of moles is 1.4484 moles

What is one mole?

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12

The 6.022 x 10²³ number is known as the number of Avogadro or the constant of Avogadro.

(12 g C = 1 mol C atoms = 6.022 × 10²³ C atoms)

Given data ,

Grams of Hydrogen = 1.46 grams of Hydrogen

Now , 1 g of Hydrogen has 0.99212 mole

So , to calculate the number of moles in 1.46 grams of Hydrogen =
Grams of Hydrogen x 0.99212 mole

The number of moles in 1.46 grams of Hydrogen = 1.46 x 0.99212

                                                                                 = 1.4484 moles

Hence , the number of moles in 1.46g of Hydrogen is  1.4484 moles

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Answer:

Step-by-step explanation:

[tex]\text{rule}=a+\frac{b}{c}=\frac{ac+b}{c}\\ \\ 5\frac{1}{2}=\frac{5(2)+1}{2}\\ \\ \frac{11}{2}[/tex]

Answer:

b - 1/4 = 3 1/2

Step-by-step explanation:

b - 1/4 = 3 1/2

b - 1/4 = (3 + 1/2)

4b = 15

b = 15/

4

= 3.75

Answer:

A= 1/2*9.1*6

= 27.3mi^2

Step-by-step explanation:

i actaully knew this im not sure why they deleted my last answer

Answer: see below

Step-by-step explanation:

Just apply Proportionality Theorem at correct time, with correct proportions, It tells, the ratio of two corresponding arms always equal.

So, 1) AB/BC = AJ/JI

2.5/2.25 = AJ/1.8

AJ = 2.5* 1.8 / 2.25

AJ = 2

2) BC/CD = JI / IH

2.25/CD = 1.8/1.2

CD = 2.25 * 1.2 / 1.8

CD = 1.5

3) CD/DE = IH/HG

1.5/3.5 = 1.2 / HG

HG = 1.2 * 3.5 / 1.5

HG = 2.8

4) For GF, we should use "Pythagoras Theorem"

h² = a² + b²

GF² = 6.5² - 6²

GF² = 42.25 - 36

GF = √6.25

GF = 2.5

5) Perimeter = 2.5 + 2.25 + 1.5 + 3.5 + 6.5 + 2.5 + 2.8 + 1.2 + 1.8 + 2

P = 26.55

6) Area = 1/2 * b * h

A = 1/2 * 9.65 * 10.3

A = 49.70

Hope this helps!

Answer:

9 Boxes

Step-by-step explanation:

Take 108 and divide by 12

Answer:

1. -5

2. 0.5

3. -4

4. 8

5. 9

6. -3

7. 5

8. 0.6

9. -7

10. 10

11. -5

12. 4

13. -9

14. 4

15. -6

Step-by-step explanation:

It's just the number that doesn't have a x to the side on it

Answer:

(0,-5)

(0,0.50)

Step-by-step explanation:

just put the number that doesn't have x with it in the answer spot but don't forget to do the (0,#) it's important that you do it like that so for example the problem y=4x-3 you would just put in the answer column (0,-3)

Answer:

The answer is 0.675

Step-by-step explanation:

If you were going to ask Brainly, you could have easily just used a calculator lol

Answer:

I think it is 64 but not 100% sure

Hope this helps :)