7. Write the slope-intercept form of the equation of the line.
slope = -5 , y - int = -1

Answer:

[tex]t=4820 y[/tex]

Step-by-step explanation:

a) The half-life equation is given by:

[tex]t_{1/2}=\frac{ln(2)}{k}[/tex]

b) Using the decay equation we have:

[tex]Q(t)=15e^{-0.0001438t}[/tex]

we need to find t when [tex]Q(t)=\frac{Q_{0}}{2}[/tex]

[tex]7.5=15e^{-0.0001438t}[/tex]

[tex]0.5=e^{-0.0001438t}[/tex]

[tex]ln(0.5)=-0.0001438t[/tex]

[tex]t=\frac{ln(0.5)}{-0.0001438}[/tex]

[tex]t=4820 y[/tex]

Therefore, it will take 4820 years to decay to half the original amount.

I hope it helps you!

Answer: A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 18 in. by 30 in. by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a

Step-by-step explanation:

Answer:

109 x. A. Try your expression with a real number to see if it makes sense. For ... negative is a positive. C:X-3 ya tx combine like terms. 2x-3y². (De) 4x3y - 6xy3 ... B. (94-6) = (12-4x). Solve for x distribute on each side. if you use a calculator, put the ... distribute solve: 3(x+2). 3x +6. +57. 8 X+. 1 -6. = 5(-2-x). < -10 -5x. +5*. < -10.

Step-by-step explanation:

Answer:

The answer to 12x + 4x + 25y + 15y is 16x+40y for sure, I did it multiple times.

I don't see that answer in what you provided.

Step-by-step explanation:

Is there anything more that I can do to help you?

Answer: They both are located at (2,3)

Step-by-step explanation:

The sign that A and C are related is that they both have the same distance from the y axis.

a pair of numbers that employ the horizontal and vertical distinctions from the two reference axes to represent a point's placement on a coordinate plane. typically expressed by the x-value and y-value pairs (x,y).

Coordinates are always written in the form of small brackets the first term will be x and the second term will be y.

For example (5,3) here 5 will be for the x and 3 will be for the y.

Another example is (9,0) here 9 is for x and 0 is for y.

Given that the coordinates A and C how are related now as we can see that both A and C are the same amount of distance by the y-axis.

This also can be seen by the coordination of A and C.

For more about coordinates

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Answer:

49m/s

59.07 m/s

Step-by-step explanation:

Given that :

Distance (s) = 178 m

Acceleration due to gravity (a) = g(downward) = 9.8m/s²

Velocity (V) after 5 seconds ;

The initial velocity (u) = 0

Using the relation :

v = u + at

Where ; t = Time = 5 seconds ; a = 9.8m/s²

v = 0 + 9.8(5)

v = 0 + 49

V = 49 m/s

Hence, velocity after 5 seconds = 49m/s

b) How fast is the ball traveling when it hits the ground?

V² = u² + 2as

Where s = height = 178m

V² = 0 + 2(9.8)(178)

V² = 0 + 3488.8

V² = 3488.8

V = √3488.8

V = 59.07 m/s

Answer:

OD. (-1, -3)

Step-by-step explanation:

in quadrant 3 the x-axis and y-axis is negative

hope this helps :3

if it did pls mark brainliest

Answer:

The answer is simple it is OD. (-1,-3)

Step-by-step explanation:

If you look quadrant III has -numbers so since quadrant III has -numbers then the answer has -numbers so both numbers have to be in the - and the only answer that has both numbers as - that means that it has to be OD. (-1,-3)!

Answer:

2. ad is the angle bisector of angle a

3. ad is perpendicular to bc

4. both are right angles as given

5. common

6. ASA congruence

Answer:

The answer is {(7.8, 1), (7.6, 2), (7.4,3)}

Step-by-step explanation:

The first minute, you would have to subtract 8 - 0.20

Answer:(7.8, 1), (7.6, 2), (7.4, 3)}

Step-by-step explanation:

Answer:

0.1 or 10

Step-by-step explanation:

set it up and it’s easy 5 times 2 divided by 100

Answer:

5 is 2% of 250

Answer:

x=34

Step-by-step explanation:

[tex]\frac{x}{2}=17\\x=2*17\\x=34[/tex]

Answer:

x=34

Step-by-step explanation:

Multiply 2 on both sides

x/2=17

x=34

Hope this helps :D

Please mark brainliest if correct

Answer:

2

Step-by-step explanation:

Multiply 3 by the exponets and then times those fractions  :)))))

Answer:

Twenty percent of $47.83 is equal to $14.66

If you did 20% of 47.83, that would equal 9.566. So, now you need to take the 5, which is equal to 500 cents, and turn it into 5 dollars. (One hundred cents is a dollar so 500 cents , is 5 dollars.) now it’s 9 + 5. Easy, it’s 14. Now add back the 66, and it’s 14.66 dollars. So the answer is...

14.66

Hope this helps =3

Answer:

we need a number line for this question...

Step-by-step explanation:

Answer:

x< -2

Step-by-step explanation:

Answer:

Just do 14+15 because the variables are equal.

Answer:

29 ehehehehe

Step-by-step explanation:

Answer:

[tex]5\frac{1}{4}[/tex]

Step-by-step explanation:

I hope this helps!

Answer:

5 [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

Answer:

2.275

Step-by-step explanation:

4.4-1.175= 2.275

There's a way to think about it, in case you get other questions like this.

When you look at your problem, take out the 35. Out of the picture.

Look at 25%. 25% x 4 = 100% Meaning 4 is golden.

Then bring back the 35 and multiply it by 4. It gives you 140.

:)))) Use this mentallity on other question on percentages!

Answer:

use what is given

use CTCP

Answer:

0.206897

Step-by-step explanation:

it is 0.206897 because you have take the whole make uneven fraction an add it to 60 in 60/72 to get 348 divided equals 0.206897

The decimal representation of expression 4(60/72) is approximately 4.8333...

We have,

To find the decimal representation of 4(60/72), we can perform the division and multiplication:

4(60/72)

This can be written as,

(72 x 4 + 60) / 72

Simplifying the fractions.

348/72

Divide the numerator by denominator.

4.83333

Thus,

The decimal representation of expression 4(60/72) is approximately 4.8333...

Learn more about expressions here:

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Answer:

5/12 / 7/8 =10/21

Step-by-step explanation:

Answer:

10/21

Step-by-step explanation:

5/12 divided by 7/8

5/12÷7/8

5/12×8/7

5×8/12×7

10/21

So the answer is 10/21

Answer:

I believe it should be b and d

Step-by-step explanation:

hoped it helped :)

Answer:

A paired t-test

Step-by-step explanation:

Number of items = 50

Variable in question = Price of each item

Classification of items = Similar or Same items

Locations from where items are drawn = 2 locations

The locations = Target Store & Walmart Store

Type of test to use = PAIRED TEST

This is because the items are same or similar and their comparison is the comparison of the mean values of two related groups. In this case, it is not immediately concluded that both groups have equal variance.

Answer:

Step-by-step explanation:

The two given angles add to 180 if the 2 angles that look parallel are parallel.

That means that

17x + 14 + 4x - 2 = 180        Combine like terms

21x + 12 = 180                     Subtract 12

21x = 180 - 12                      Combine

21x = 168                             Divide by 21

x = 168 / 21

x = 8

Therefore 17x + 14 is the angle you want.

<B = 17*8 + 14 = 150.

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

There's another way to do this.

4x - 2 + <B = 180

4*8 -2 +<B = 180

32 -2 + <B = 180

30 + <B = 180

<B = 180 - 30

<B = 150

Answer:

Step-by-step explanation:

[tex]4^{n} = 16 \\\\4^{n} = 4^2\\\\[/tex]

n = 2

2)

[tex]3^{n} =\frac{1}{81}\\\\ = \frac{1}{3^{4}}\\\\3^{n} = 3^{-4}[/tex]

n = -4

Answer:

y = -4/3x + 6

Step-by-step explanation:

1. 3y - 4x + 3y = 18 - 3y

2. 4x = -3y + 18

3. 18 - 4x = -3y + 18 - 18

4. -3/ -3y = 4x - 18 /3

5. y = -4/3x + 6

Answer:

Definitely B

Step-by-step explanation:

Answer:

It's D guys

Step-by-step explanation:

Answer:

2.6

Step-by-step explanation:

3/5 ---> ?/100

100/5 ---> 20

3       20         60

--  x           =   -------

5       20         100

60/100 = 6/10

6/10 as a decimal is 0.6

2 + 0.6

= 2.6

Answer:

24   +    28

2*2*2*3   +    2*2*7              [prime factors]

You may distribute any common ones, for example:

  4(6+7)              [that is, 2*2*(2*3 + 7)

  2(12+14)

Step-by-step explanation:

Step-by-step explanation:

52

Wow

Wow

Wow

Common sense