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Ad libitum [116K]
3 years ago
12

I've been sitting on this problem for 2 hours! AND I STILL DON'T KNOW WHAT THE HECK IT ISSS!!!!

Mathematics
1 answer:
MArishka [77]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Use foil to expand it.

y = 4 (x^2 + 7x - 9x - 63)     Combine the like terms on the right.

y = 4(x^2 - 2x - 63)              Use the distributive property to remove the brackets.

y = 4x^2 - 8x - 4*63            Combine the two multiplied factors on the right.

y = 4x^2 - 8x - 252              4* 63 = 252

The answer is A

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For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
wlad13 [49]

Answer:

4.80

Step-by-step explanation:

To find the solution to this problem we will use the Pythagoras theorem.

{c}^{2}  =  {a}^{2}  -  {b}^{2}

=   \sqrt{ {12}^{2}  -  {11}^{2}} \\  = 4.7958... \\  = 4.8

4 0
2 years ago
When comparing the two sets of data, what is a true statement
PolarNik [594]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify 3x[18+{3+4÷(4-2)}]
tresset_1 [31]

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

3 \times 18 +  3 + 4 \div ( 4 - 2)

= 54 + 3 + \frac{4}{4 - 2}

= 57 + \frac{4}{4 - 2}

= 57 + \frac{4}{2}

= 57 + 2

= 59

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ May ♡

8 0
3 years ago
Read 2 more answers
PLEASE HELP! I have a deadline tonight ,I have to get this done! thank you!!<br> Two questions (:
Viktor [21]
Both of your answers are correct. In the first equation, if you were to substitute 3 for x, because you have to do exponents first, you have 3^2, which is 9, and 9*6 =54. If you were to substitute -3 for x again you would have to do the exponents first which would be -3^2 which is 9, and 9*6 = 54. 

For the second question, if I substitute 0.75 for t, I get -9 + 18 + 7. This is equal to 16, and therefore the answer would be D. Hope this helps! :D. Let me know if you have questions about my explanation, and feel free to post more questions.
3 0
3 years ago
( use elimination) on 3x+5y=12 and x-3y=4
Elena L [17]

Answer:

x=4 y=0

Step-by-step explanation:

3x+5y=12

-(x-3y=4)

3x+5y=12

3(-x+3y=-4)

3x+5y=12

-3x+9y=-12

14y=0

y=0

Then, substitute the y into the equation to find x

x-3(0)=4

x=4

7 0
2 years ago
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