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Yakvenalex [24]
3 years ago
9

In buffalo, New York the temperature was -12F in the morning. What will the temperature be if it drops 9F

Mathematics
1 answer:
Orlov [11]3 years ago
7 0

Answer:

The correct answer is -21 degrees.

Step-by-step explanation:

We know that the original temperature was -12 degrees.  If the temperature drops another 9 degrees, this means that it is getting colder or the temperature is getting lower; this lets us know that we should subtract 9 from the original temperature.  This is modeled below:

-12 - 9

Now, we simply have to perform the subtraction to get:

-21 degrees

Hope this helps!

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Answer:

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Step-by-step explanation:

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What is the product
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Answer:

\left[\begin{array}{cc}6&18\\\end{array}\right]

Step-by-step explanation:

To find the product of the matrices: \left[\begin{array}{cc}4&2\\\end{array}\right] × \left[\begin{array}{cc}-2&5\\7&-1\\\end{array}\right]

Multiply rows of the first matrix by the columns of the second matrix.

(4 × (–2) + 2 × 7          4 × 5 + 2 × (–1))

After simplifying this, we get the product \left[\begin{array}{cc}6&18\\\end{array}\right]

Hence, \left[\begin{array}{cc}4&2\\\end{array}\right] × \left[\begin{array}{cc}-2&5\\7&-1\\\end{array}\right] = \left[\begin{array}{cc}6&18\\\end{array}\right]

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3 years ago
True or False. Fred trades 2 tomatoes to Barney in exchange for 1 pumpkin. Fred and Barney both gain from the exchange. We can c
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Answer:

False

Step-by-step explanation:

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11111nata11111 [884]

Complete question is;

Determine whether the experiment is blind or double blind.

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Answer:

Double blind study.

Step-by-step explanation:

We are told that participants receive contents from Bottle A, Bottle B, or Bottle C.

However, the testing service only knows that one bottle contains placebo aspirin but they don't know the other contents nor which of the participants is taking the one with placebo aspirin.

Thus, this is a double blind experiment because neither the participants nor the testing service have knowledge of who is taking the bottle that contains placebo aspirin unlike a blind experiment where the testing service will know which participants got the bottle containing aspirin.

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