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4 years ago

Which of the following represents a synthesis reaction?

Mathematics

1 answer:

Serggg [28]4 years ago

4 0

Answer:

A+B+C=ABC

In a synthesis reaction, reactants are added together

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625 / 2500 simplified?

son4ous [18]

Answer:1/4

Step-by-step explanation:

- Divide the numerator and the denominator by 625

- Divide the numbers

- YOUR FINAL ANSWER

Hope I was able to satisfy your needs

6 0

4 years ago

Read 2 more answers

A 38-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third

KengaRu [80]

Let the length of the first piece be x inches. Then:-

x + 2x + 4x + 3 = 38

7x = 38 - 3

x = 35/7 = 5 inches

Answer: the 3 pieces have lengths 5, 10 and 23 inches.

4 0

4 years ago

What is this I need the answer

Archy [21]

<h3>Answer is 0</h3>

===========================================================

Explanation:

Logarithms are used to solve exponential equations. Specifically if you have a variable in the exponent, then you use a log to isolate the variable.

If we set the given log expression to x, then we can rewrite it into 8^x = 1. The only value of x that works is x = 0.

------------

Or put another way,

8^x = 1

8^x = 8^0 ... replace the 1 with 8^0

x = 0 ... the bases are equal (to 8) so the exponents must be equal

------------

You can use the change of base formula to directly calculate this log

$\log_8(1) = \frac{\log(1)}{\log(8)} = \frac{0}{0.903} = 0$

8 0

3 years ago

Television normally cost $1420 due to a store sale the television is now $1022.40 what was the percentage taken off the televisi

ASHA 777 [7]

it is 72 percent off.

3 0

4 years ago

Read 2 more answers

Suppose that a code consists of 5 digits, none of which is repeated. ( A digit is one of the 10 numbers 0,1,2,3,4,5,6,7,8,9.) Ho

Tomtit [17]

Answer:

30240

Step-by-step explanation:

There are two primary ways to approach this problem - the logical and the mathematical.

The logical way is very simple:

Since you know that there are 5 digits and each must be different, start with the first digit and work your way up.

The first digit can be any of 10 digits (0–9).

However, the second digit can be any of only 9 digits as 1 digit has already been used and cannot be repeated.

Similarly, applying the same logic, there are only 8 options for the third digit, 7 for the fourth digit, and 6 for the fifth and final digit.

Now, multiply all these numbers together to get the total number of configurations like so:

10⋅9⋅8⋅7⋅6=30240

The more mathematically inclined way requires the use of a special formula. Since in this particular scenario, the order of the numbers matter, we can use the Permutation Formula:

P(n,r)=n!(n−r)!

where n is the number of numbers in the set and r

is the subset.

Since there are 10 digits to choose from, we can assume that n=10

Similarly, since there are 5 numbers that need to be chosen out of the ten, we can assume that r=5

Now, plug these values into the formula and solve:

=10!(10−5)!

=10!5!

=10⋅9⋅8⋅7⋅6

=30240

3 0

3 years ago