Subtract the 5 from both sides leaving you with 4x-2x=6, 2x=6 divide by 2 on each side and you get x=3
Answer:
about 1,620 cubic inches
Hope that was helpful.Thank you!
<h3>I'll teach you how to solve 15x ^2 −4x−4</h3>
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15x ^2 −4x−4
Break the expressions into groups:
(15x^2+6x) + (-10x-4)
Factor out 3x from 15x^2+6x:
3x(5x+2)
Factor out -2 from -10x-4:
-2(5x+2)
3x(5x+2) -2(5x+2)
Factor out common term 5x+2:
(5x+2)(3x-2)
Your Answer Is (5x+2)(3x-2)
plz mark me as brainliest :)
Volume of Big Pyramid= 324 cubic feet
Volume of small pyramid= 12
Volume of a pyramid is given as V=⅓xBasexheight
For the big pyramid
324=⅓xbasexheight
But 324= 27x12
Then for the big pyramid,
12=1/3x1/27xbasexheight
For the small pyramid
12=1/3xbasex6
Since both base are similar and from the equations derived so far
1/3x1/27xheight=1/3x6
Height=27x3x1/3x6=162feet
Answer: He is right. He could do 13+6=19, 19-6=13 and 19-13=6. So that's how you know he is right.