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3 years ago

PLEASE HELP DUE IN 5 MIN

Mathematics

1 answer:

anzhelika [568]3 years ago

5 0

9514 1404 393

Answer:

x = 11

Step-by-step explanation:

The external angle is half the difference of the subtended arcs. The smaller arc is shown as 86°. The larger arc will be the difference between 360° and the two arcs shown.

larger arc = 360° -74° -86° = 200°

So, the external angle is ...

4x +13 = (200 -86)/2 = 57

4x = 44 . . . . . . . . . . . . subtract 13 from both sides

x = 11 . . . . . . . divide by 4

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3 years ago

Find x use picture for question.

katrin2010 [14]

Answer:

x = 8

Step-by-step explanation:

Firstly, create an equation or formula

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3 years ago

Read 2 more answers

The triangles are similar. what is the value of x ?

jonny [76]

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3 years ago

There are a total of 63 bikes at a sports shop. If 18 bikes are blue, what is the ratio of blue bikes to black bikes?

prohojiy [21]

Answer:

45 to 18 it's easy

Step-by-step explanation:

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3 0

3 years ago

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

makkiz [27]

ok. We are given the following equation:

$ph=-\log (H)$

Where:

$\begin{gathered} P=\text{ alkalinity} \\ H=\text{ hydrogen ion concentration} \end{gathered}$

Since we are asked to determine "H" we will solve for "H" in the equation. To do that we will first multiply both sides by -1:

$-ph=\log (H)$

Now, we will use the following property of logarithms:

$\log _aB=c\rightarrow B=a^c$

Applying the property and having into account that:

$\log (H)=\log _{10}(H)$

We get:

$10^{-pH}=H$

Now we substitute the given value of "pH = 4.5":

$10^{-4.5}=H$

Solving the operation:

$0.000032=H$

Therefore, the hydrogen ion concentration of the fluid is 0.000032

7 0

1 year ago