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
Andrews [41]
3 years ago
15

The product of a + 3 and –2a2 + 15a + 6 is –2a3 + xa2 + 51a + 18. What is the value of x?

Mathematics
1 answer:
geniusboy [140]3 years ago
8 0
Value of x is 9 As when we multiply a + 3 by -2a2 + 15a + 6 We get (a + 3) (-2a2 + 15a + 6) -2a3 + 15a2 + 6a - 6a2 + 45a + 18 -2a3 + 9a2 + 51a + 18 If we compare the coefficients of a2, we get x = 9
You might be interested in
A is the point with coordinates (5,9) B is the point with coordinates (d,17) The line AB has gradient 4 Work out the value of d​
yarga [219]

Answer:

d=9

Step-by-step explanation:

The gradient of straight line is given by

m=\frac{y_2-y_1}{x_2-x_1}

Plug in our knows

4=\frac{17-9}{d-5} \text{ Solve for d} \\\\4(d-5)=8\\\\d-5=4\\d=9

3 0
2 years ago
Find the surface area of the rectangular prism​
Zielflug [23.3K]

Answer:

A=556

Step-by-step explanation:

lxwxh

5 0
4 years ago
Carl works at a garment factory and sews buttons on shirts. For each shirt he completes that passes inspection, he earns $2. How
Ratling [72]

do 2*52 which gives you 104 so 104 dollars

6 0
4 years ago
Which properties justify the steps taken to solve the system? {3x−2y=10 4x−3y=14
Alexeev081 [22]
The answer is: Substitution property of equality.

 The explanation is shown below:

1. To solve this problem you must apply the proccedure shown below:

 2. When you clear the variable x from the first equation, and subtitute it into the second equation, you obtain:

 <span>3x−2y=10
 x=(10+2y)/3

 4x−3y=14
 </span>4[(10+2y)/]−3y=14
<span> y=-2

 3. When you subsitute y=-2 into the first equation and clear the x, you have:

 x=2
 </span>
7 0
3 years ago
Read 2 more answers
Jim had three waffles. He ate 1/6 of one waffle, and. 2/3 of another waffle. How many waffles were left?
Troyanec [42]
So find how much was eaten
1/6 and 2/3=eaten
add 1/6 and 2/3
convert bottom number to same
2/3=4/6
1/6+4/6=5/6
5/6 eaten
3-5/6=
2+1-5/6=
2+6/6-5/6=
2+1/6
2 and 1/6 waffles left
7 0
3 years ago
Read 2 more answers
Other questions:
  • Would You RATHER...
    9·1 answer
  • What’s the simplest form of the fraction 85 over 204
    15·1 answer
  • Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to sta
    6·1 answer
  • Julie is cutting out triangle pieces for her scrapbook. The sides the triangle are 3 centimeters by 4 centimeters by 2 centimete
    14·1 answer
  • What is the exact value of the expression √72 - √8 + √128? Simplify if possible.
    14·1 answer
  • Help me out please ...
    6·2 answers
  • Can someone help me we are suppose to do pythagorean theorem.
    8·1 answer
  • PLZZZ ANSWER I BEG U
    9·1 answer
  • How many 3 digit numbers can you make using these numbers: 4,2,9 (numbers can be reapeated)
    15·1 answer
  • What is the perimeter of this composite figure?<br> 4 cm<br> 6 cm
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!