If 3 times a certain number is increased by 4 the result is 28. What is the number?
1 answer:
3x+4=28 because 3 times an unknown number was mentioned first and mentioned together so they will be together, increased by 4 is +4 and comes after, the result of is the same as equals so you put the equals sign and whatever number they gave after.
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Answer:
3x² – 2x – 8
=> 3x² – 6x + 4x – 8
=> 3x( x – 2 ) + 4( x – 2 )
=> ( 3x + 4 ) ( x – 2 )
Therefore,
Either, 3x + 4 = 0
3x = - 4
x = - 4/3 (Ans)
And,
x – 2 = 0
x = 2 (Ans)
Answer:
10.5
Step-by-step explanation:
Answer: 5 seconds
<u>Step-by-step explanation:</u>
Maximum height is the y-value of the vertex. The number of seconds at maximum height is the x-value (aka axis of symmetry).
h(x) = -2x² + 20x + 48
a=-2 b=20 c=48
Axis of symmetry: x =
=
=
= 5
Answer:
D
Step-by-step explanation:
sqrt(7) = about 2.6
and that divided by 2 is
0.8 which means D is the Answer
Answer:
11/32
Step-by-step explanation:
4/16 + 2/16 - 1/32
simplify and solve
