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
Delvig [45]
2 years ago
12

3(x+7) simplify the expressions

Mathematics
2 answers:
Nitella [24]2 years ago
6 0

Answer:

3x + 21

Step-by-step explanation:

(3 × x) + (3 × 7)

3x + (3 × 7)

3x + 21

Ne4ueva [31]2 years ago
4 0

Answer:

3x+21

Step-by-step explanation:

you distribute the 3 which gives you 3x and 7x3 which is 21.

You might be interested in
Thomas sold 412 boxes of cookies at a cost of 1175 what is an estimate closest to the cost of a box of cookies
Nata [24]

Answer:

285

Step-by-step explanation:

1175 divided by 412 = 2.85194174757

that would be around 2.85

6 0
3 years ago
Read 2 more answers
A car averages 30 miles of driving for 1 gallon of gas if the car holds 12 gallons how many times will we have to fill up his ga
icang [17]

Answer:

7 times

Step-by-step explanation:

30 miles per 1 gallon

Car holds 12 gallons

30x12=360

2520/360=7

3 0
3 years ago
Read 2 more answers
Express f(x) = 3 cos x + 5 sin x as Rsin(x + o), where e<br>is an acute angle in radians.​
Andrews [41]

Answer:

<h2>√34sin(x + 0.33π)</h2>

Step-by-step explanation:

The general form of the equation acosx + bsinx = Rsin(x + e) where R is the resultant of the constants 'a' and 'b' and e is the angle between them.

R = √a²+b²

e = tan^{-1}\frac{b}{a}

Given the function f(x) = 3 cos x + 5 sin x, comparing with the general equation;

a = 3, b = 5

R = √3²+5²

R = √9+25

R =√34

e = tan^{-1} \frac{5}{3} \\e = 59.09^{0}

in radians;

e =\frac{\pi }{180}*59.09\\ e = 0.33\pi rad

3 cos x + 5 sin x = √34sin(x + 0.33π)

4 0
3 years ago
Solve 3x+4+7x+8+7x3+7x3
kodGreya [7K]
The answer is ERROR i tried it by hand and by calculator and both answers ended up as ERROR 
3 0
3 years ago
Read 2 more answers
A blackjack is a 10-point card and an ace for a value of 21. Use your answers to parts (a), (b), and (c) to determine the probab
kondor19780726 [428]

Answer:

Results:

0.1432

0.0045

0.0905

0.0483

Step-by-step explanation:

Step a:

P(A or 10, A or 10) = 20/52 * 19/51 = 5/13 / 19/51 = 95/663 = 0.1432

Step b:

P(A A) = 4/52 * 3/51 = 1/13 * 1/17 = 1/221 = 0.0045

Step c:

P(10 10) = 16/52 * 15/51 = 4/13 * 5/17 = 20/221 = 0.0905

Step d:

P(A 10 or 10 A) = 2 * 4/52 * 16/51 = 2/13 * 16/51 = 32/663 = 0.0483

As well we get the probability by subtracting a,  b and c:  

P(blackjack): 0.1432 - 0.0905 - 0.0045 = 0.0482  

7 0
3 years ago
Other questions:
  • Find an equation for the perpendicular bisector of the line segment whose endpoints are (7,1)(7,1) and (-9,9)(−9,9)
    8·1 answer
  • Which number produces a rational number when added to 0.25
    15·1 answer
  • Could a set of three vectors in ℝ^4 span all ℝ^4? Explain. What about n vectors in ℝ^m when n is less than m?
    9·1 answer
  • You want to deposit 15,000 in a bank at an interest rate of 7 percent per year. What is the future value of this money after thr
    5·1 answer
  • PLEASE HELP ILL FAIL
    13·2 answers
  • HELP ME Please i beg you can you help me!!!!
    13·1 answer
  • The dimensions of triangle B are three times the dimensions of triangle A. The area of triangle A is 40.5 cm2.
    7·1 answer
  • PLEASE ANSWER! 15 POINTS
    5·1 answer
  • Find the midpoint of the segment with the following endpoints.<br><br> (10,6) and (3,1)
    13·1 answer
  • HELPPPP Select the figure with four lines of symmetry and a 90° angle of rotational symmetry.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!