If billy has 20 undex card then cut them in half would that be a physical or chemical change?

Answers

Answer 1

Answer:

Physical

Step-by-step explanation:

Cutting the cards in half just changes what they look like, not what they are. Changing what they are would be a chemical change.

Answer 2

Answer: physical change

Step-by-step explanation:

Related Questions

please send help, and explain if you can <333

Answers

Answer:

it would be B

Step-by-step explanation:

d=(0-(-5)^2+(-2-(-3)^2

d=(5)^2+(1)^2

d=25+1

d=26

Ben made a sundial in his backyard by placing a stick with height 6 in. straight into the ground, and marking the hours in the grass. To test it, he checks the time each day when the sun makes an angle of 30° or 60° with the ground. Select all the possible lengths of the shadow when Ben checks the sundial.
A. 12 in.
B. 23√ in.
C. 8 in.
D. 63√ in.
E. 22√ in.

Answers

Answer:

B and D

Step-by-step explanation:

Write the equation of the line given a slope of 0 through the point (5, -7)

Answers

a line with a slope of 0 is a horizontal line
so the equation would be y=-7

Answer:

y=-7x+5

Step-by-step explanation:

Michael sold 24 fruit bars for the band fundraiser he earned $18 for his band uniform how many more fruit bars would he need to sell on order to earn another $5.25

Answers

Answer:

New number of fruits sold = 7 fruits

Step-by-step explanation:

Given:

Total number of fruits = 24

Amount raised = $18

More amount need to earn = $5.25

Find:

New number of fruits sold

Computation:

New number of fruits sold = [24 / 18]5.25

New number of fruits sold = 6.9999

New number of fruits sold = 7 fruits

Subtract h - 1 from
h+4.
Oh+5
o h+5
1h
4
h+3

Answers

Answer:

Step-by-step explanation:

(h + 4) - (h-1) = h + 4 + h*(-1) - 1*(-1)

= h + 4 - h + 1

= h - h + 4 + 1

= 0h + 5

I don’t get this help

Answers

Answer:

its the 4th one

Step-by-step explanation:

The answer is the last one 4th

What is the volume of a cylinder with a radius of 4 yards and a height of 6 yards

Answers

Answer: 230. 58 m^3

Explanation: V=πr2h=π·3.662·5.49≈230.58431

Hope this is right

Answer:

301.59 yards

Step-by-step explanation:

Find the slope of the line passing through the pair of given points.
(5, 7) and (2,7)

Answers

Answer:

m = 0

Step-by-step explanation:

[tex]m = \frac{7 - 7}{5 -2} \\m = \frac{0}{3}\\m = 0[/tex]

i need help with my math problems

Answers

Answer:

Step-by-step explanation:

X Y X Y

0 3 0 5

1 7 1 8

2 11 2 11

3 15 3 14

4 19 4 17

John earns $28.50 tutoring for 3 hours. At this rate, how much money will he earn in 8 hours of tutoring? (Use the $ in your answer).

Answers

Answer:

$76

Step-by-step explanation:

Hope it helps! If so can I get brainliest

Plssss helpppp!!!!!!!

Answers

Answer:

Subtract 6 from both sides so the equation equals 0 ;)

Step-by-step explanation:

Answer:

Subtract 6 from both sides!

Step-by-step explanation:

I got it wrong at first 0-0

What does it mean to SOLVE a system of linear equations?

Answers

Answer:

In solving a system of linear equations, we try to find values for each of the unknowns that will satisfy every equation in the system

Step-by-step explanation:

The number of fish in a lake decreased by 25% between last year and this year. Last year there were 60 fish in
the lake. What is the population this year? If you get stuck, consider drawing a diagram.
There are
fish in the pond.
HELLPPP

Answers

Answer:

theres

Step-by-step explanation:

Help please! Due in 30 minutes!

Use complete sentences to answer the following question.

1. Choose one of the properties of exponents (for example, the Power of a Power Rule). Explain how the property works, and provide an example of the property.

Answers

Answer:

Product of a Power: When you multiply exponentials with the same base, you add their exponents (or powers). Power to a Power: When you have a power to a power, you multiply the exponents (or powers). Quotient of Powers: When you divide exponentials with the same base, you subtract the exponents (or powers).

Step-by-step explanation:

Answer:

What is the Power rule?

The Power rule tells us how to differentiate expressions of the form x^nx

x, start superscript, n, end superscript (in other words, expressions with xxx raised to any power):

\dfrac{d}{dx}x^n=n\cdot x^{n-1}

=n⋅x

n−1

start fraction, d, divided by, d, x, end fraction, x, start superscript, n, end superscript, equals, n, dot, x, start superscript, n, minus, 1, end superscript

Basically, you take the power and multiply it by the expression, then you reduce the power by 111.

Example: What is the derivative of x2 ?

For x2 we use the Power Rule with n=2:

The derivative of x2 = 2x(2-1)

= 2x1

= 2x

Answer: the derivative of x2 is 2x

(2t2 - 36t + 162). - (t-9)

Answers

Answer:

2t^2 - 37t + 171

Step-by-step explanation:

distrube the - to the (t-9) and then combine like terms

Answer:(2t2 + 27t) - 162 = 0

STEP

Trying to factor by splitting the middle term

2.1 Factoring 2t2+27t-162

The first term is, 2t2 its coefficient is 2 .

The middle term is, +27t its coefficient is 27 .

The last term, "the constant", is -162

Step-1 : Multiply the coefficient of the first term by the constant 2 • -162 = -324

Step-2 : Find two factors of -324 whose sum equals the coefficient of the middle term, which is 27 .

-324 + 1 = -323

-162 + 2 = -160

-108 + 3 = -105

-81 + 4 = -77

-54 + 6 = -48

-36 + 9 = -27

-27 + 12 = -15

-18 + 18 = 0

-12 + 27 = 15

-9 + 36 = 27 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -9 and 36

2t2 - 9t + 36t - 162

Step-4 : Add up the first 2 terms, pulling out like factors :

t • (2t-9)

Add up the last 2 terms, pulling out common factors :

18 • (2t-9)

Step-5 : Add up the four terms of step 4 :

(t+18) • (2t-9)

Which is the desired factorization

Equation at the end of step

(2t - 9) • (t + 18) = 0

STEP

Theory - Roots of a product

3.1 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:

Step-by-step explanation:

Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3)

Answers

Answer:

a^5 is the answer

Step-by-step explanation:

a^8 / a³

= a^8 - 3

= a^5

Answer:

a^5

Step-by-step explanation:

The average temperature in the North Pole in the summer is 32 degrees F. The average temperature in the North Pole in the winter is -40 degrees F.

Kevin says that the difference between these two temperatures is 8 degrees.

Identify the error in Kevin's thinking. Determine the difference between these two temperatures, and explain or show your process.

Answers

Answer:

he counted from 32 to 40 , and not to -40

Step-by-step explanation:

the difference is 72 degrees

During their field trip the students had the following lunch options. For their main meal they had four options: Sandwich, Burger, Pizza and Chicken Tenders. For drinks their options was limited to two options Water and Gatorade. And for their side order they had two options: chips or fries. What is the probability than the next person will choose to have Chips for their meal?

Answers

Answer:

50%

Step-by-step explanation:

beacuse their are only 2 options which means 50% for each option. so when the student goes to pick there is a 50% chance their pick either one.

The answer is 50 for your question

Please help need done fast!

Answers

b 3 paper per min hope this helps

PLEASE HELP ITS TIMED!!!
Order from least to greatest -1/2, -3/4, -2/5

Answers

Answer:

-2/5, -1/2, -3/4

Step-by-step explanation:

You have to have the same denominator.

-10/20, -15/20, -8/20

Hope this helps!

What are two equivalent fractions for 4/12??

Answers

1/3, 8/24

u can just multiply/divide the numerator and the denominators by the same number (if its divisible without making a complex fraction.)

Answer:

Step-by-step explanation:

A small submarine travels at a speed of 2.4 hours how far will the submarine travel in 0.25 hours

Answers

Answer:

If the math adds up the submarine will travel 6 km in 25 hours

Step-by-step explanation:

i think u pretty much just multiply :)

Hey, guys does your tutoring thing still work?

Answers

Answer:

well we have school online, so yea i guess it still works, unless you're talking about something else lol

Answer:

yeah minework

Step-by-step explanation:

help me asap mathematics 7th grade

Answers

Answer:

The pizza is 8.99 per pizza.

Step-by-step explanation:

PLEASE HELP!!!!!!!!!!

Answers

Answer:

y+1 1/4=3 3/4 or y.1 1/4=3 3/4

Step-by-step explanation:

A parking meter charges $0.25 for the first 30 minutes and $0.1 for every additional 5 minutes. If Megan is charged $1.35 for parking at this specific meter, how many minutes did she park for?

Answers

Answer:

I got 140 minutes

Step-by-step explanation:

Jackson invested $750 into a savings bond that earned 3% interest each month. At the same time, he also began saving money in a savings account. The value of the savings account is represented by f(x) = 1,000 + 25x, where x represents the number of months since the account was opened. At the end of how many months did the value of the savings bond first begin to exceed the value of the savings account?

Answers

Answer:

33 Is the ANSWER

Who ever answers this first gets brainly

Answers

Answer:

Step-by-step explanation:

THE ANSWER IS B , because you find find the radius that is 9 and then you you multiply 9 times 9 and it would give you 81 and then you multiply 3.14 times 81 . And it would give you 254.54 and I know I am right because I got right I had the same problem

pls answer i need help

Answers

Answer:

the first one is 2/4 and 3/6

the second one is 4/6 and 6/8 and the equation is

3/4 times 4/6 = .5

Step-by-step explanation:

A quart of milk costs $1.89. What is the total cost for 20 quarts of milk?

Answers

To do this problem, you have to multiply the number of one quart of milk by twenty to get the total cost. So, you would do 1.89 x 20, which equals 37.8. So, the total cost would be $37.80 :)

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