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4 years ago

PLEASE HELP!!

Mathematics

1 answer:

belka [17]4 years ago

6 0

Answer: 69

Step-by-step explanation: 50-30+40+9

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A scatter plot is made comparing x, the number of hours since midnight, with y, the number of lights turned on in a house. What

Zepler [3.9K]

Answer:

7 hours since midnight and 8 lights turned on.

Step-by-step explanation:

(x,y) so 7 is the x and 8 is the y.

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2 years ago

Select the statement that correctly compares two numbers.

OLEGan [10]

Answer:

d. jh8chihjihvy cggbbgfcccvcc

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3 years ago

Find the product. If the result is negative, enter "-". If the result is positive, enter "+". -7(- a2 ) 2 ( -b3 ).

m_a_m_a [10]

Answer:

The product is positive, thus it is $\bold{+7a^4b^3}$

Step-by-step explanation:

The full question in proper notation is:

"Find the product. If the result is negative, enter "-". If the result is positive, enter "+".

$-7(-a^2)^2(-b^3)$ "

We have to work with it using Order of operations know as well as PEMDAS, thus expression inside parenthesis go first and exponents.

On this expression we have to work with exponents

$(-a^2)^2 = (-a^2)(-a^2) =a^4$

Thus we get

$-7(-a^2)^2(-b^3)=-7a^4(-b^3)$

Lastly we can work with multiplication and remembering that the multiplication of two negative signs becomes positive.

$-7(-a^2)^2(-b^3)=7a^4b^3$

So the final simplified expression is $\bold{7a^4b^3}$

5 0

4 years ago

Read 2 more answers

PLS HELP WILL MARK YOU BRAINLIEST!!<br> No fake answers pls

aleksklad [387]

Answer:

It should be b

Step-by-step explanation:

It cant be c or d since those are greater than or equal to 100 and we have a limit of 100.

Now it's between a and b.

I say its b because we are adding even integers which will make an odd number still odd.

Hope this helped and I hope this is correct!

5 0

2 years ago

Read 2 more answers

What is 5c-4c+c-3c and 3a+6+5a-2 and 8b+8-4b-3?

ELEN [110]

Answer: -c

8a+4

4b+5

Step-by-step explanation:

5c-4c+c-3c

c+c-3c

2c-3c

-c

3a+6+5a-2

8a+4

8b+8-4b-3

4b+5

6 0

3 years ago