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Igoryamba
3 years ago
5

Which expression results in the smallest difference?

Mathematics
1 answer:
Ede4ka [16]3 years ago
7 0
The answer is C 12.5 -0.031
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If lan does a job in 132 hours and with the help of Danielle they can do it together in 44 hours, how long
yuradex [85]

Answer:

88 hours

Step-by-step explanation:

Ian = 132

Daniel + Ian = 44

Daniel = Ian - 44

= 132-44 = 88 hours

7 0
3 years ago
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Quadrilateral ABCD is located at A(−2, 2), B(−2, 4), C(2, 4), and D(2, 2). The quadrilateral is then transformed using the rule
kap26 [50]
For each point, add 7 to the x coordinate and take away 1 from the y-coordinate. 

<span>I am using a "tick-mark" to show the corresponding point, after "translation" (movement in a straight line). </span>

<span>A(-2, 2) becomes A'(5, 1) </span>

<span>Because all points have been translated in a straight line, in the same direction (the direction [7 -1]) by the same distance, the new figure A'B'C'D' will have the same shape, same size and same orientation as the original image.  </span>

<span>It will simply be in a different location on the graph. </span>

<span>If you were to join A with A', B with B', and so on, you would see that all 4 vectors are parallel and are of equal length. </span>

<span>If you were to compare the segment AB (side AB of the original quadrilateral) with the segment A'B' (in the new quadrilateral), you would see that they are parallel (same slope) and have the same length. </span>
<span>Same with the other sides. </span>

<span>Tow figures that are identical (except for their location) are said to be "congruent". </span>

<span>--- </span>

<span>The new rectangle will be far to the right (7 units in x) and a bit below (-1 in y) from the old one. </span>

<span>You should draw the two figures on a graph, and you will see a lot of this very clearly.</span>
8 0
3 years ago
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Work out the mean for the data set below: 2.2, 2, 8.9, 4.1, 8.2
goblinko [34]
Add all and divide by how many there is
answer is 5.08
8 0
3 years ago
Simplify<br> 5 x 5²<br> leaving your answer in index form.
kotegsom [21]

Answer:125

Step-by-step explanation:

6 0
3 years ago
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Iodine-131 is a radioactive material with half-life of eight days. A scientist starts with 100 grams of iodinie- 131. Which func
MrRissso [65]
The correct answer is Choice A.

This is an example of an exponential equation, so we need the formula y=ab^x.

The a value is the starting value of 100. The b value must be a decimal lower than 1 because it is decreases.

If you substitute in 8 for x, you will see that the output is about 50 (half of 100).
6 0
3 years ago
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