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3 years ago

Whats the quotient of -8 divided by 2

Mathematics

2 answers:

malfutka [58]3 years ago

8 0

Answer:

-4

Step-by-step explanation:

Dividing by two is the same as splitting in half. Half of -8 is -4

Roman55 [17]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

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The ph of vinegar is 2.9 and the ph of milk is 6.6. How many times greater is the hydrogren ion concentration of vinegar than of

shutvik [7]

Answer:

Step-by-step explanation:

H+ is the hydrogen ion concentration.

This problem requires the use of solving log equation.

PH of vinegar is 2.9, lets find the number of hydrogen ions in it by using the equation:

$PH=-Log[H^{+}]\\2.9=-Log[H^+]\\-2.9=Log_{10}[H^+]$

Note: Log is normally base 10 if not specified

Now, to solve, we use exponential to log conversion formula shown below:

$Log_{z}x=b\\z^b=x$

Now lets solve:

$-2.9=Log_{10}[H^+]\\H^+=10^{-2.9}\\H^+=0.001259$

Now, the PH of milk is 6.6, so we follow same procedure and find the number of hydrogen ion in milk. Shown below:

$PH=-Log[H^{+}]\\6.6=-Log[H^+]\\-6.6=Log_{10}[H^+]\\H^+=10^{-6.6}\\H^+=0.0000002512$

So, to find how many times it is greater, we divide first answer we found by the second answer:

$\frac{10^{-2.9}}{10^{-6.6}}\\=5011$

That is about 5000 times, answer D is right.

3 0

3 years ago

Factor the linear expression 50x-30

Umnica [9.8K]

Answer:

10 (5x−3)

Hope this helps!

4 0

3 years ago

8 to the second power.(2+6) divided by 4=

Sloan [31]

I'm a little confused on the format but if you mean 8^2(2+6)/4 then the answer is 128

8x8 is 64, 64x8 is 512. 512/4 is 128

6 0

3 years ago

Read 2 more answers

How do you use the distributive property to create an equivalent expression for 54+18x

IRISSAK [1]

The distributive property states:

A(b+c)= ab + ac

You would need to find a number that multiplies both 54 and 18.

You could divide both by 2, since they are both even.

54/2= 27 18/2=9

2( 27 + 9x)

Make sure to put the x next to nine.

I hope this helps!
~kaikers

4 0

3 years ago

Help qwq I still don’t understand THIS

Leviafan [203]

Answer:

Start at 5 and move 8 units to the left

Step-by-step explanation:

5 -8

Start at 5 on the number line

We are subtracting 8

Move 8 units to the left

You will end of at -3

3 0

3 years ago

Read 2 more answers