1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
seropon [69]
3 years ago
12

Use the distributive property to write an expression that is equivalent to 7(3x-4)

Mathematics
2 answers:
Helen [10]3 years ago
7 0

Answer:

21x-28

Step-by-step explanation:

you multiply 7 by 3 and 7 by 4 and bring down the x and subtraction sign

zloy xaker [14]3 years ago
5 0

The distributive property: <em>a(b - c) = ab - ac</em>

7(3x - 4) = (7)(3x) - (7)(4) = 21x - 28

You might be interested in
Who oh of the following illustrates the truth value of the given statements? January is the first month of the year or December
IrinaK [193]

Answer: T T > T

Step-by-step explanation:

Step 1: Determine if the statements are true or false.

1) January is the first month of the year---statement is true

2) December is the last month of the year---statement is true

With this, the truth value will be:

T T > T

The two statements are true, therefore, conjunction of both statements will also be true.

I hope this helps.

3 0
3 years ago
Read 2 more answers
The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.954 grams and a standard devia
olga_2 [115]

Let <em>X</em> be the random variable representing the amount (in grams) of nicotine contained in a randomly chosen cigarette.

P(<em>X</em> ≤ 0.37) = P((<em>X</em> - 0.954)/0.292 ≤ (0.37 - 0.954)/0.292) = P(<em>Z</em> ≤ -2)

where <em>Z</em> follows the standard normal distribution with mean 0 and standard deviation 1. (We just transform <em>X</em> to <em>Z</em> using the rule <em>Z</em> = (<em>X</em> - mean(<em>X</em>))/sd(<em>X</em>).)

Given the required precision for this probability, you should consult a calculator or appropriate <em>z</em>-score table. You would find that

P(<em>Z</em> ≤ -2) ≈ 0.0228

You can also estimate this probabilty using the empirical or 68-95-99.7 rule, which says that approximately 95% of any normal distribution lies within 2 standard deviations of the mean. This is to say,

P(-2 ≤ <em>Z</em> ≤ 2) ≈ 0.95

which means

P(<em>Z</em> ≤ -2 or <em>Z</em> ≥ 2) ≈ 1 - 0.95 = 0.05

The normal distribution is symmetric, so this means

P(<em>Z</em> ≤ -2) ≈ 1/2 × 0.05 = 0.025

which is indeed pretty close to what we found earlier.

4 0
3 years ago
What is a surface area of the cuboid with 4,5 and 9
Anettt [7]

Answer:

SA = 202

Step-by-step explanation:

Surface area = Sum of all 6 areas of each side of the cuboid

SA = 2 (4·5 + 5·9 +9·4), because there are 2 of each kind of sides

SA = 2 (20+ 45 + 36)

SA = 2·101

SA = 202

8 0
2 years ago
The statement tan theta -12/5, csc theta -13/5, and the terminal point determined by theta is in quadrant 2."​
Harlamova29_29 [7]

Answer:

Answer C:

Cannot be true because csc(\theta)  is greater than zero in quadrant 2.

Step-by-step explanation:

When the csc of an angle is negative, since the cosecant function is defined as:

csc(\theta)=\frac{1}{sin(\theta)}

that means that the sin of the angle must be negative, and such cannot happen in the second quadrant. The sine function is positive in the first and second quadrant.

Therefore, the correct answer is:

Cannot be true because  csc(\theta)  is greater than zero in quadrant 2.

6 0
3 years ago
Solve 3[-x + (2 x + 1)] = x - 1.
Marrrta [24]

Answer:

x= -2

Step-by-step explanation:

-3x+6x+3=x-1

3x-x= -1-3

2x= -4

x= -2

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is (4.14x10^-3)/.500
    13·2 answers
  • A baking mix consists of powdered milk, sugar, and flour in a ratio of 3:4:13.
    6·1 answer
  • If $1000 is divided equally among twelve people, about how much will each person<br> receive?
    13·2 answers
  • the price of a video game was reduced from $60 to $45.by what percent was the price of the video game reduced?
    5·1 answer
  • What is the highest you can count to in pi
    8·1 answer
  • If you are multiplying 5 rational numbers, how can you determine if the sign on the product is positive or negative?
    14·1 answer
  • Solve 112(14−6)−(−4)=−59
    14·1 answer
  • Red Hook has a population of 6,200 people and is growing at a rate of 8% per year. Rhinebeck has a population of 8,750 and is gr
    11·1 answer
  • Will give Brainliest if answer correctly....
    7·1 answer
  • Pls Help Me<br> Pls show your answer pls and thank you
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!