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NemiM [27]
4 years ago
8

Evaluate the expression when t = –6.4 and u = –2.8.

Mathematics
2 answers:
denis-greek [22]4 years ago
7 0
-6.4 – 4(-2.8)
-6.4 – - 11.2 = 4.8

Your answer is B: 4.8
Marrrta [24]4 years ago
4 0
The answer is -17.6.
 It is -17.6 because  when there is a number next to a letter you multiply.And 2.8 times 4 equals 11.2. Then you subtract it by -6.4.
so it is -6.4 - 4x2.8 
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Can anyone please help me :)
Solnce55 [7]

Answer:

5 to the 15th power.

Step-by-step explanation:

PEMDAS requires us to do parenthesis, then exponents, and then division. Let's do 5³. 5x5x5 is equal to 125. Now, we find 125 to the ninth power. According to my calculations, 125 to the ninth power is equal to 7,450,580,596,923,828,125. Now, we find 5 to the twelfth power, which, according to my calculations, is 244,140,625. Now, we solve. According to my calculations, 7,450,580,596,923,828,125/244,140,625 is equal to 30,517,578,125. 30,517,578,125 is equivalent to 5 to the 15th power. That means that the second option is correct. I hope this helps!

3 0
3 years ago
What is 9^3 as a power of 3 ​
Alex787 [66]

Answer:

729

Step-by-step explanation:

9³ you just type that in the calculator

4 0
3 years ago
Read 2 more answers
One cylinder has a volume that is 8 mc018-1.jpg less than mc018-2.jpg of the volume of a second cylinder. If the first cylinder’
Hatshy [7]
The anwser to it is 57



4 0
4 years ago
What is the median of the following data values? 108,102,43,100,22
PolarNik [594]

<u>Answer:</u> 100

<u>Reasoning:</u> The median is the "middle value" and to find it put the numbers in order from least to greatest.

22, 43, 100, 102, 108.

now take a number from both sides

43, 100, 102

Once again.

100

So 100 is the median.

6 0
3 years ago
Read 2 more answers
Jose needs to memorize words on a vocabulary list for French class. He has memorized 20 of the words, which is four-fifths of th
Stella [2.4K]

Answer:

25

Explanation:

In order to solve this the easiest way you can use equivalent fractions.

\frac{4}{5} = \frac{20}{?}\\

Since 4 times 5 equals 20 we can multiply 5 times 5 to get our answer.

\frac{4}{5} * \frac{5}{5} = \frac{20}{25}

25 is the answer. But, if we couldn't have gotten to 20 through the multiplication we could use a proportion. That would look like the initial problem but instead of a "?" we would use a variable. I will use <em>t</em> for total.

\frac{4}{5} = \frac{20}{t}\\

So now we have our problem set up. The next step is to cross multiply. 4 by <em>t</em> and 5 by 20.

4t = 5 * 20\\4t = 100\\

And now we can solve it like a normal algebra problem.

\frac{4}{4}t = \frac{100}{4}\\t = 25

Either way, we get 25.

5 0
3 years ago
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