Which statement about equations and expressions is true?
An example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal.
An example of an expression is 4.5 + x = 13.2 because it shows that two equations are equal.
An example of an equation is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.
An example of an expression is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.

Answer:

since it is addition with algebra than do 13.2 minus 4.5 and than that should be your answer.

Step-by-step explanation:

I think it's is C ..............................................

Write your answer in scientific notation. Take a look at the picture.

Alright, can someone that is competent in this concept explain to me about residuals? I am studying for a quiz tomorrow. I will mark brainliest if you give me a good and hopefully detailed explanation about residuals.

The graphic models one of the properties used to solve a one variable equation.

8 (3 x + 40) = 10. An arrow points from 8 to 3 x, and from 8 to 40.

Which property is being modeled?
addition property of equality
commutative property of multiplication
distributive property of multiplication
associative property of addition

PUT THEM IN ORDER SMART ONLY
Put the steps in order for adding decimals.

Reorder answers
1.Fill in any empty spaces with a zero.
Reorder answers
2.Drop the decimal down into the answer.
Reorder answers
3.Add
Reorder answers
4.Line up the decimals.

1.Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's height is 4 feet, 2 inches.
Which measurement should be considered the actual height?
a. Clare's b. the doctors c. both d. neither
2.What was the error, expressed in inches?
3.What was the error, expressed as a percentage of the actual height?

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Use the Distributive Property to simplify the expression.

8(x + 10)

A watermelon was estimated to weighs 7,458 grams. A scale measured the actual weight as 8,475 grams. Express the measurement error as a percentage of the actual weight.
Please Help Asap! Thank you so much!

Calculate the estimated density of each ball. Use the formula

D = m/V
where D is the density, m is the mass, and V is the volume. Record your calculations in Table A of your Student Guide.

Given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. Record your prediction in Table A.

What is the estimated density of the table tennis ball? Record your answer to the nearest hundredth.

g/cm3

What is the estimated density of the golf ball? Record your answer to the nearest hundreth.

g/cm3

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HELP PLEASE!!
The kinetic energy of a car can be described by the function KE = 12 mv2, in which the constant m is the mass of the car and v is the car’s velocity. If the velocity keeps increasing, the kinetic energy will —
A remain constant
B continually increase
C increase and then become constant
D decrease to zero

The expression (3x - 5)(x + 2) is equivalent to:

F. 3x2 - 10
G. 3x2 + x + 10
H. 3x2 + x - 10
J. 3x2 + 11x - 10
K. 3x2 - 11x - 10

−2x − (−5 − 4x) = −5(2x − 7)

Savannah, Greg, and Kevin all take part-time jobs for the summer. Their hourly wages are show in the tables below. Use the information to answer each question.


1: What is the constant of proportionality, k, of Kevin's wage?

2: What is constant of proportionality, k, of Greg's?

3: What is the constant of proportionality, k, of Savannah's wage?

4: [blank] has the highest hourly rate per hour.

5: If all three friends worked 20 hours during the week, how much would each person earn? Savannah-[blank]

6: If all three friends worked 20 hours during the week, how much would each person earn? Greg-[blank]

7: If all three friends worked 20 hours during the week, how much would each person earn? Kevin-[blank]

8: Savannah earns $247.00. How many hours did she work?

9: How long will it take Greg to earn $500.00? Round to the nearest hour.

On a survey about chocolate candy, 8 people chose Snickers as their favorite candy, 12 chose Reese's, and 5 chose Hershey's. What percent of the people chose Reese's as their favorite chocolate candy?

Simon has a scale model of the Concorde airplane. The actual length of the Concorde is approximately 200 feet. If the ratio of the actual length in feet to the length of the model in centimeters is 5 : 1, what is the approximate length of Simon's model?
A.
20 cm
B.
30 cm
C.
40 cm
D.
50 cm
E.
60 cm

Renting video games from Store S costs $2.50 per game plus a monthly fee of $5.00. Renting video games from Store T costs $5.00 per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v, rented. Which inequality represents the situation when the monthly cost at Store S is less than the monthly cost at Store T?

A. 2.5v + 5 < 5v

B. 2.5v + 5 = 5v

C. 7.5v < 5v

D. 7.5v = 5v

Choose the correct math expression for: the sum of 18 and 12 subtracted from 50.
(18 + 12) - 50
50 - (18 + 12)
18 + (50 – 12)
50 – 18 + 12

can some body answer this ty:)

round 4.2 to the nearest whole number

a plant grows at a constant rate. lokesh records the height of the plant each week. The unit rate is measured in inches per week. what is the constant of proportionality A.3 B.3 C.1/2 D.2/3​ NVM it's 1/2

What is Half of a number m increased By five

Help me? on a timer tysvm don't rush just need the correct answer.

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Sonja needs 1/4 teaspoon of salt for her rolls, 1/8 teaspoon of salt for her muffins, and 1/2 teaspoon of salt for her bread. How many teaspoons of salt does she need in all?

Olivia has $150 to spend on clothes. She buys one pair of jeans for $38. She wants to buy several shirts that cost $21 each. Which inequality could be used to determine the possible number of shirts, x, she could buy?need help ASAP

Plz help with this question