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
Triss [41]
3 years ago
15

Can you simplify -3(x - 2y)

Mathematics
1 answer:
finlep [7]3 years ago
3 0
Yes.

−<span>3<span>(<span>x−<span>2y</span></span>) = </span></span><span>(<span>−3</span>)</span><span>(<span>x+<span>−<span>2y</span></span></span><span>)
</span></span>
And then...

(−3)(x+−2y) = <span><span>(<span>−3</span>)</span><span>(x)</span></span>+<span><span>(<span>−3</span>)</span><span>(<span>−<span>2y</span></span><span>)
</span></span></span>
which equates to <span>−<span>3x</span></span>+<span>6<span>y

The answer of which you're looking for is </span></span><span>−<span>3x</span></span>+<span>6<span>y.</span></span>
You might be interested in
I need gay guy friends or maybe even more then friends in the future
Kipish [7]
That’s really cool but thanks for free pointss <333
3 0
2 years ago
9. A pet store has 45 mice. The number of mice is 22 more than the number of cats. Which equation can be solved to find the numb
madam [21]
Answer

C. c+22=45

Working
6 0
3 years ago
(This is literally 7th grade math dude should be easy for most of you)
Korolek [52]

Answer:

a. no b. 40.05

Step-by-step explanation:

a. to figure out the number of goals per game you have to divide the total amount of goals by the number of games:

last season: 41 ÷ 15 = 2.73

this season: 24 ÷ 9 = 2.67

as you can see the answer to the last season equation is higher than the this season meaning the player scored more goals last season.

b. we already know that the amount of games the player won each game (all of them supposedly being exactly even) is 2.67. so what we have to do is multiply it by 15 the supposed number of games the player is playing this season to get the total number of goals they will get for the entire season:

2.67 x 15 = 40.05 = the prediction of the total goals of the player

7 0
3 years ago
Read 2 more answers
Suppose that two teams play a series of games that ends when one of them has won ???? games. Also suppose that each game played
Musya8 [376]

Answer:

(a) E(X) = -2p² + 2p + 2; d²/dp² E(X) at p = 1/2 is less than 0

(b) 6p⁴ - 12p³ + 3p² + 3p + 3; d²/dp² E(X) at p = 1/2 is less than 0

Step-by-step explanation:

(a) when i = 2, the expected number of played games will be:

E(X) = 2[p² + (1-p)²] + 3[2p² (1-p) + 2p(1-p)²] = 2[p²+1-2p+p²] + 3[2p²-2p³+2p(1-2p+p²)] = 2[2p²-2p+1] + 3[2p² - 2p³+2p-4p²+2p³] =  4p²-4p+2-6p²+6p = -2p²+2p+2.

If p = 1/2, then:

d²/dp² E(X) = d/dp (-4p + 2) = -4 which is less than 0. Therefore, the E(X) is maximized.

(b) when i = 3;

E(X) = 3[p³ + (1-p)³] + 4[3p³(1-p) + 3p(1-p)³] + 5[6p³(1-p)² + 6p²(1-p)³]

Simplification and rearrangement lead to:

E(X) = 6p⁴-12p³+3p²+3p+3

if p = 1/2, then:

d²/dp² E(X) at p = 1/2 = d/dp (24p³-36p²+6p+3) = 72p²-72p+6 = 72(1/2)² - 72(1/2) +6 = 18 - 36 +8 = -10

Therefore, E(X) is maximized.

6 0
3 years ago
Firewood is stacked in a pile. The bottom row has 20 logs and the top row has 14 logs. Each row has one more log than the row ab
zavuch27 [327]

Answer:

19

Step-by-step explanation:

Add from numbers 14-20

8 0
3 years ago
Other questions:
  • Sequence 800,400,200,100,50
    9·1 answer
  • Rewrite the following equation in slope-intercept form. 17x − 7y = 16 Write your answer using integers, proper fractions, and im
    11·2 answers
  • Please help asap 15 pts
    5·1 answer
  • Pls pls pls pls help me i nerd help asap i will give BRAINLIEST!!!!!!
    10·2 answers
  • Police can estimate the speed of a vehicle before the brakes are applied using the formula 0.75d=(s^2)/(30.25) where s is the sp
    7·1 answer
  • Solve for x: 18 over 10= x over 12 Prove your answer in the show your work box.<br> Pls hurry
    14·1 answer
  • Solve the equation for y (310=2y + x)
    12·1 answer
  • Find x and then any unknown angles in the quadrilateral
    13·1 answer
  • Reed bought 2 donuts. The total was $1.58. How much was each donut? If "c" represents the cost of each donut, choose the correct
    11·1 answer
  • 14.) Which expression is equivalent to 2/3 X 5?<br><br>3x5÷2<br>2÷5x3<br>2x5÷3<br>3=2x5​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!