Answer:
187 trees
Step-by-step explanation:
50 trees per acre in an orchard and
the orchard is 1.7 x 2.2 km,
we calculate the orchard dimension = 1.7 x 2.2km = 3.74
to calculate how many trees are in the entire orchard = 3.74 x 50 = 187 trees
<h3>
Answer: 13/99</h3>
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Work Shown:
The horizontal bar over the "13" means the 13 repeats forever like so
0.13131313...
Let's make x the value of this, so,
x = 0.131313...
Multiply both sides by 100
100x = 13.131313...
this moves the decimal point over 2 spots to the right. The decimal portion of 13.131313... is still the repeated "13" sequence
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We have
100x = 13.131313...
x = 0.131313...
Subtract straight down
100x-x becomes 99x
13.131313... - 0.131313... becomes 13. The decimal portions line up perfectly and subtract away.
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After those subtractions, we have 99x = 13 which solves to x = 13/99 when you divide both sides by 99
Use a calculator to confirm that 13/99 = 0.13131313...
Side note: since you're given a list of choices, you can use your calculator to try out each one and see which work and which don't work.
Answer:
option d
Step-by-step explanation:
AB = C
<em>Step 1: Multiply row 1 of matrix B by column 1, 2 and 3 of matrix A to get first column of C</em>
(2x-2)+(3x5)+(-5x-1) (2x-4)+(3x1)+(-5x-3) (2x2)+(3x5)+(-5x-4)
= (-4+15-5 -8+3+15 4+15+20)
= (16 10 39)
<em>Step 2: Multiply row 2 of matrix B by column 1, 2 and 3 of matrix A to get second column of C</em>
(5x-2)+(-4x5)+(2x-1) (5x-4)+(-4x1)+(2x-3) (5x2)+(-4x5)+(2x-4)
= (-10-20-2 -20-4-6 10-20-8)
= (-32 -30 -18)
<em>Step 3: Multiply row 3 of matrix B by column 1, 2 and 3 of matrix A to get third column of C</em>
(-1x-2)+(-1x5)+(3x-1) (-1x-4)+(-1x1)+(3x-3) (-1x2)+(-1x5)+(3x-4)
= (2-5-3 4-1-9 -2-5-12)
= (-6 -6 -19)
<em>Step 4: Form the whole matrix</em>
(16 10 39)
(-32 -30 -18 )
(-6 -6 -19 )
Therefore, option d is correct.
Please help I don't understand this
True....Independent = Test....therefore they are testing the current
