Answer:
1) 144 ft
2) 292.5 ft
Step-by-step explanation:
1) SA= lw+ 4(1/2( <em>l </em>)h)
SA=6*6+ 4(1/2( 6 )9)
SA=36+ 4(1/2( 6 )9)
SA=36+ 4( 3*9 )
SA=36+ 4( 27 )
SA=36+ 144
2) SA= 1/2( / )h+ 3(1/2( <em>l </em>)h)
SA=1/2( 15 )13+ 3(1/2( 10 )13)
SA=7.5*13+ 3 ( 5*13 )
SA=7.5*13+ 3 ( 65 )
SA= 97.5+ 3 ( 65 )
SA=97.5+ 195
SA= 292.5
Answer:
2330
Step-by-step explanation:
In rounding nearest 10,
If the ones place digit is 5 or more then 5 then we round the number to upper 10, while if the ones place digit is less than 5 then we round the number to lower 10,
For example : 34 ≈ 30 while 36 ≈ 40,
Now, given expression,
961 + 27.8 + 693.0 + 573 +76.4
By the above statement 961≈ 960, 27.8 ≈ 30, 693.0 ≈ 690, 573 ≈ 570 and 76.4 ≈ 80,
Hence, 961 + 27.8 + 693.0 + 573 +76.4 = 960 + 30 + 690 + 570 + 80 = 2330.
A = 210 + 20(h - 7) <== ur equation
if she earns 410 tutoring...
410 = 210 + 20(h - 7)
410 = 210 + 20h - 140
410 = 20h + 70
410 - 70 = 20h
340 = 20h
340/20 = h
17 = h <=== she spent 17 hrs tutoring
Answer:
x≤-3 2 ≤x<7
Step-by-step explanation:
(x^2+x-6) /(x-7) ≤0
Factor the numerator
(x+3)(x-2) / (x-7)≤0
Critical points are
X =-3 X =2 X=7
We need to check the values when
x≤3 -3 ≤ x≤2 2 ≤x<7 x>7
(x cannot be 7 because then the denominator is zero)
and see when it is less than 0
Substitute a value in and see if factor is positive or negative
x≤-3
(negative)(negative) / (negative) = negative
-3 ≤x≤2
(positive)(negative) / (negative) = positive this range does not work
2 ≤x<7
(positive)(positive) / (negative) = negative
x>7
(positive)(positive) / (positive)
