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4 years ago

-3 3/4<-3.7 is this true

Mathematics

2 answers:

valkas [14]4 years ago

5 0

True expression :) hope i helped

agasfer [191]4 years ago

4 0

Yes that expression is true

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If someone has 16 dollars left bus used 3/7 of it how much money did they have

Readme [11.4K]

Answer:

$37.33 dollars

Step-by-step explanation:

16 x 7/3= 112/3

d=37.33

8 0

3 years ago

2. The alkalinity of a fluid (pH) can be modeled in terms of its hydrogen ion concentration (H+, measured in moles/liter) of the

nataly862011 [7]

Given the equation:

$pH=-log\mleft(H^+\mright)$

You know that a lab technician finds that a sample of fluid has this pH:

$pH=4.5$

Then, in order to find the hydrogen ion concentration of the fluid, you need to follow these steps:

1. Substitute the pH given in the exercise into the equation:

$4.5=-log(H^+)$

Multiply both sides by -1:

$-4.5=\log (H^+)$

2. Solve for:

$H^+$

Remember that, by definition:

$\log _b\mleft(c\mright)=a\Rightarrow b^a=c$

In this case, you can identify that:

$\begin{gathered} a=-4.5 \\ b=10 \\ c=H^+ \end{gathered}$

Hence, substituting values and simplifying, you get:

$\begin{gathered} b^a=c \\ 10^{-4.5}=H^+ \\ H^+=0.00003162278\text{ }\frac{moles}{liter} \end{gathered}$

Therefore, the answer is:

$H^+=0.00003162278\text{ }\frac{moles}{liter}$

4 0

2 years ago

PLEASE HELP ASAP....i’ll mark brainlest

Sidana [21]

Answer:

True

Step-by-step explanation:

Kilo means 1,000 so kilometers means 1,000 meters. If you don't know prefixes it might be kind of confusing because centimeters doesn't mean 100 meters so I'll leave something here.

Kilometers = 1000 meters

1 meter = 10 decimeters

1 decimeter = 10 centimeters

1 centimeter = 10 millimeters

If I have time later I'll attach a visual that could help.

8 0

3 years ago

Which of the following sums would be under the radical symbol to find the distance between the points (7, -1) and (-8, -9)?

Ann [662]

The sum is 15^2 + 8^2 and it doesn't match any of the above

5 0

4 years ago

Read 2 more answers

(16 divided by 4) x (7-4)

zavuch27 [327]

4 x 3 = 12
12 would be the answer

4 0

3 years ago

Read 2 more answers