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
EastWind [94]
3 years ago
12

Multiply. (5x2-6x+2) x (4x2-3x)

Mathematics
1 answer:
stich3 [128]3 years ago
6 0

Answer:

<em>18x² - 84x + 96</em>

Step-by-step explanation:

(5 × 2 - 6x + 2) × (4 × 2 - 3x)

5 × 2 (4 × 2 - 3x) - 6x(4 × 2 - 3x) + 2(4 × 2 - 3x)

80 - 30x - 6x(4 × 2 - 3x) + 2(4 × 2 - 3x)

80 - 30x - 48x + 18x² - 6x

96 - 84x + 18x²

18x² - 84x + 96

Hope this helps! :)

You might be interested in
Help please i’ll really appreciate it
maw [93]

Answer:

radius is 4 height is 10 volume is 167.55

Step-by-step explanation:

3 0
3 years ago
141.1933-67.53 =<br> (Divided, not minus)
Sphinxa [80]

Answer: I think its 2.09

Step-by-step explanation:

But i'm not sure.

5 0
3 years ago
Which equation can be used to find the volume of a sphere that has a radius of 9 miles?
Licemer1 [7]
V=(4/3)pir^3

r=9
V=(4/3)pi9^3
V=12pi243
V=972pi

aprox pi=3.14
3052.08 mi^3
6 0
3 years ago
What is the equation for the line?
antoniya [11.8K]

Answer:

y=-4x+5

Step-by-step explanation:

the line goes down 4 for every 1 that x changes. the line crosses the y axis at 5.

(this might not be accurate, I can't really see if the line is on the exact point or not)

6 0
3 years ago
Read 2 more answers
Drag each set of column entries to the correct location in the matrix equation. Not all sets of entries will be used. A biker ne
ANEK [815]

Answer:

The matrix equation is \left[\begin{array}{ccc}1&1&1\\1&-1/2&0\\0&2&-1\end{array}\right]=\left[\begin{array}{c}120&35&20\end{array}\right]

Step-by-step explanation:

* Lets change the story problem to equations

- The distance between the starting point and checkpoint 1 is x

- The distance between checkpoint 1 to checkpoint 2 is y

- The distance between checkpoint and the finish line is z

- The total distance for the race is 120 miles

∴ x + y + z = 120 ⇒ (1)

-The distance from the starting point to checkpoint 1 is 35 miles

 more than half the distance from checkpoint 1 to checkpoint 2

∵ The distance from the starting point to checkpoint 1 is x

∵ The distance from checkpoint 1 to checkpoint 2 is y

- x is more than half y by 35

∴ x = 35 + (1/2) y ⇒ subtract (1/2) y from both sides

∴ x - (1/2) y = 35 ⇒ (2)

- The distance from checkpoint 2 to the finish line is 20 miles less

 than twice the distance from checkpoint 1 to checkpoint 2

∵ The distance from checkpoint 2 to the finish line is z

∵ the distance from checkpoint 1 to checkpoint 2 is y

- z is less than twice y by 20

∴ z = 2y - 20 ⇒ add 20 to both sides

∴ z + 20 = 2y ⇒ subtract z from both sides

∴ 2y - z = 20 ⇒ (3)

* Now lets write the three equations

# x + y + z = 120 ⇒ (1)

# x - (1/2) y = 35 ⇒ (2)

# 2y - z = 20 ⇒ (3)

- Now lets write the matrix equation that models this situation

∴ \left[\begin{array}{ccc}1&1&1\\1&-1/2&0\\0&2&-1\end{array}\right]=\left[\begin{array}{c}120&35&20\end{array}\right]

6 0
3 years ago
Read 2 more answers
Other questions:
  • The model represents x2 - 9x + 14
    9·1 answer
  • Does anyone know this ?
    13·2 answers
  • What is 396.5divided by 18 but estimate the quotient (ESTIMATE THE QUOTIENT) please help me
    5·2 answers
  • What is the approximate circumference of a circle with a radius of 18 feet?
    15·2 answers
  • NEED HELP ASAP WILL GIVE BRAINLIEST REAL ANSWERS ONLY PLZ WILL REPORT FAKE ANSWERS
    10·1 answer
  • The table shows a proportional relationship between the number of pounds of grapes
    14·1 answer
  • Which alternative is the NEGATIVE reciprocal of -1/8?*<br> A-8<br> B. -1/8<br> C. 1/8<br> D. 8
    8·1 answer
  • Amelia filled 1/8 of her new aquarium with gravel. How much gravel did Amelia use?
    13·2 answers
  • Pls help thanks!!!!!!!!
    12·1 answer
  • Please help me with this problem I keep getting this wrong an my son is not understanding clearly.Use the parabola tool to graph
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!