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Leviafan [203]
3 years ago
9

2. Simplify the following problem using the distributive property: 2x+3y+2(x-y)-3x . Show each step in your calculation. Justify

each of your steps using number properties.
Mathematics
2 answers:
sergeinik [125]3 years ago
8 0
Multiply everything in the parenthesis by 2.

2x + 3y + 2x - 2y - 3x

Combine like terms.

x + y

Hope this helps!
Lady_Fox [76]3 years ago
7 0
First use the distributive property to distribute the 2

2x+3y+2x-2y-3x

Next combine like terms (combine the x’s with the x’s, and the y’s with the y’s)

-x+y is your answer
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A major car manufacturer wants to test a new engine to determine if it meets new air pollution standards. The mean emission, μ,
bonufazy [111]

Answer:

Step-by-step explanation:

the appropriate null and alternative hypotheses's are something

8 0
3 years ago
HELP HELP PLEASE I NEED HELP
dimaraw [331]

Answer:

<h2>FALSE</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • PEMDAS
<h3>tips and formulas:</h3>

order of PEMDAS

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  3. multiplication or
  4. division
  5. addition
  6. subtraction
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<h3>let's solve:</h3><h2><u>L.</u><u>H.S</u><u>=</u></h2>
  1. <u>\sf simplify  \: divition:  \\  \tt 14 + 33 + 0.4</u>
  2. <u>\sf simplify \: additio n :  \\  \tt 47.4</u>
<h2><u>≠R.H.S</u></h2>

therefore

<h3>the equality is false</h3>

8 0
3 years ago
Letf(x)=(x+2)2.
Troyanec [42]

Answer: it is stretched vertically by a factor of 3

Step-by-step explanation:i make a unit test and get 100% that is correct.

I hope This help;)

7 0
3 years ago
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At the circus, a clown is shot from a cannon. This situation can be modeled by the function: h = – 16t2 + 45t + 15, where 'h' is
weeeeeb [17]

Answer:

The maximum height is 46.64 feet.

Step-by-step explanation:

If we take the derivative of h whit respect to t and equal this to zero we would find the value of t which corresponds to the maximum h.

So, we have the function h(t):

h(t)=-16t^{2} + 45t + 15

Taking the derivative, we have:

\frac{dh(t)}{dt}=-32t + 45=0

Now, we solve it for t:

t=\frac{45}{32}=1.4\: s

Finally, we put this value of t into the original equation.

h(t)=-16(1.4)^{2} + 45(1.4) + 15

h_{max}=46.64\: ft      

Therefore, the maximum height is 46.64 feet. All the given options are wrong, the one that comes closest is option A.

I hope it helps you!          

4 0
3 years ago
Help asap thx u and plz if u do help say the number for the ancer 1-5
lesya692 [45]
1b,
2b,
3a, which grade is this?
4 0
3 years ago
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