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Blizzard [7]
2 years ago
15

Find the area of the trapezoid

Mathematics
1 answer:
Cloud [144]2 years ago
6 0

Answer:

area equals to 1/2 a + b * height so I have divided 1/2 which I've taken to divide 4.4 + 3.2 which equals to 7.6 * 3 so 1/2 divide divide 7.6 is 3.8 .3.8 * 3 equals to 11.4 that's my answer 11.4 ft.

Step-by-step explanation:

hope that helps.

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A factory uses 1/6 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 1/2 of a barrel of raisins.
balu736 [363]

1/6 = 1 batch, 2/6 = 2 batches and so on

if the factory used 1/2, the factory used 3/6 of a barrel, which equals to 3 batches.

<em>hope it helps :)</em>

8 0
2 years ago
What is the domain and range of the function y = 2x2 - 4x - 10?
11111nata11111 [884]

Answer:

Step-by-step explanation:

The domain of all polynomials is all real numbers.  To find the range, let's solve that quadratic for its vertex.  We will do this by completing the square.  To begin, set the quadratic equal to 0 and then move the -10 over by addition. The first rule is that the leading coefficient has to be a 1; ours is a 2 so we factor it out.  That gives us:

2(x^2-2x)=10

The second rule is to take half the linear term, square it, and add it to both sides.  Our linear term is 2 (from the -2x).  Half of 2 is 1, and 1 squared is 1.  So we add 1 into the parenthesis on the left.  BUT we cannot ignore the 2 sitting out front of the parenthesis.  It is a multiplier.  That means that we didn't just add in a 1, we added in a 2 * 1 = 2.  So we add 2 to the right as well, giving us now:

2(x^2-2x+1)=10+2

The reason we complete the square (other than as a means of factoring) is to get a quadratic into vertex form.  Completing the square gives us a perfect square binomial on the left.

x^2-2x+1=(x-1)^2 and on the right we will just add 10 and 2:

2(x-1)^2=12

Now we move the 12 back over by subtracting and set the quadratic back to equal y:

2(x-1)^2-12=y

From this vertex form we can see that the vertex of the parabola sits at (1,-12).  This tells us that the absolute lowest point of the parabola (since it is positive it opens upwards) is -12.  Therefore, the range is R={y|y ≥ -12}

4 0
3 years ago
The winning baseball team scores 4 times as many runs as its opponent. The winning team scores 8 runs. Write an equation with an
Veronika [31]

Answer:

4x+8=x

Step-by-step explanation:

8 0
2 years ago
Shawna has $435.15 in her savings
galina1969 [7]

Answer:

  H.  $360.71

Step-by-step explanation:

The 1 in $435.15 is in the tenths place. It has a value of 1/10. One tenth that value is 1/100. To have that value, a 1 would need to be in the hundredths place: 0.01.

Of the offered choices, the only one with a 1 in the hundredths place is ...

  H.  $360.71

4 0
2 years ago
Need help multiplying
Lina20 [59]
The final answer would be:
r+2

Exact steps are shown in the attached picture.

6 0
3 years ago
Read 2 more answers
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