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maria [59]
3 years ago
6

3y(2y+5) solve the problem

Mathematics
1 answer:
pochemuha3 years ago
6 0

3y×(2y+5)

Multiply each term in the parentheses by 3y

3y×2y+3y×5

Calculate the product

6y²+3y×5

Now we do the same thing only different way

3y×2y

Multiply the numbers

6y×y

If  a term doesn't have an exponent , it is considered that the exponent is 1

6y^1×y^1

Multiply the terms with the same base by adding their exponents

6y^1+1

add the numbers

6y²

6y^2+3y×5×

calculate the product

6y²+15y

It's the same thing only different way ok

3y×5

Multiply the numbers

15y

answer: 6y²+15y

PLEASE MARK ME AS BRAINLIEST

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Solve each equation by factoring.
nevsk [136]

Answer:

k=1/3; k=-2/5

Step-by-step explanation:

15k^2+k-4=-2\\15k^2+k-2=0\\(3k-1)(5k+2)=0\\3k-1=0; 5k+2=0\\k=1/3; k=-2/5

4 0
3 years ago
The maximum weight on a roller coaster is 400 pounds. If your friend weighs 120 pounds, what is the most that you can weigh so y
wolverine [178]
The maximum weight on a roller coaster is 400 pounds (Max = 400).
If your friend weighs 120 pounds (y = 120), what is the most you can weigh so you can ride together (x + y < 400).

x + 120 <_ 400.
y = 120

Subtract 120 from both sides.

x <_ 280.

You can weigh at most 280 pounds (x <_ 280).

I  hope this helps!
7 0
3 years ago
Using a chart of values, graph the function f(x)=3^x
Citrus2011 [14]
Hey there!

For this problem, I would assume that you must make your own chart of values. You can do this by simply plugging in numbers like 1, 2, 3, etc... Since your graph won't be linear, you might want to do some negative numbers, as well. 

Also because your graph isn't linear, you might want to figure out or determine on your own just how far your curve will go. You can then figure out how many times you need to plug in an additional numbers for your function to then graph. 

I've attached a digital graph of this function, perhaps you can find it useful. 

Hope this helped you out! :-)

8 0
3 years ago
Read 2 more answers
Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and
german

Answer:

The bill will be $26070.

Step-by-step explanation:

Your base plan costs you $30 a month

And each text sent or received is only 12 cents or $0.12.

Let the messages sent be = x

So, cost for messages become = 0.12x

Let total bill cost be = y

Now, total bill will comprise of monthly plan charges plus message charges.

So, equation forms:

y=30+0.12x

Now, given is that In one month 217,000 messages were sent between two brothers in Philadelphia.

So, their approximate bill will be :

y=30+0.12(217000)

=>y=30+26040

=> y = 26070

Therefore, bill will be $26070.

5 0
3 years ago
Which is greater? 0.04 or 0.39
lianna [129]

Answer:

0.39

Step-by-step explanation:

think about it this way, if you take away the decimal it would be 39 and 04. 04 is another way to write 4 and  4 is less than 39. so 0.04 is less than 0.39

6 0
3 years ago
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