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frosja888 [35]
2 years ago
9

What is thee answer?

Mathematics
1 answer:
11111nata11111 [884]2 years ago
5 0
I believe the answer is B.
Hope this helps <3
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Please Help!!!!!!!!!
marissa [1.9K]
124 square units
you just have to count the top, bottom, and a side and times by 2
4 0
3 years ago
The pH scale for acidity is defined by pH= -log subscript 10 [H superscript+] where [H superscript+] is the concentration of hyd
gtnhenbr [62]

Answer:

The concentration of hydrogen ions in moles per liter (M) is 3.981 * 10^{-9}

Step-by-step explanation:

As we know

The hydrogen ion concentration of any solution at pH is given by

H^+ = 10^{-pH}

Substituting the given values in above equation, we get -

H^+ = 10^{-8.4}\\H^+ = 3.981 * 10^{-9} mol/l

The concentration of hydrogen ions in moles per liter (M) is 3.981 * 10^{-9}

8 0
3 years ago
The weather report states that the probability it will rain on Wednesday is 30 percent and the probability that it will rain on
Sauron [17]
Since these 2 events are independent , the probability of them both occurring is obtained by multiplying them

P(rain on Wed and Sat) =0.30* 0.60 = 0.18

 which is 18%
3 0
3 years ago
Read 2 more answers
What is the value of x
Nezavi [6.7K]

\tan(16)  =  \frac{8.3}{x}  \\

0.2867453858 =  \frac{8.3}{x}  \\

Thus :

x =  \frac{8 .3}{0.2867453858}  \\

x = 28.9455398797

Thus :

x = 28.9

3 0
2 years ago
What’s the answer PLZ???
ollegr [7]
11. Take the logarithm, base X.
  a² - ab = 10
Since we are given that b = a - 2, we can substitute for b to get
  a² - a(a -2) = 10
  a² - a² + 2a = 10 . . . . . eliminate parentheses
  a = 5 . . . . . . . . . . . . . . simplify, divide by 2


_____
Check: a² = 5² = 25
  ab = 5·3 = 15
  X^25/X^15 = X^10 . . . . . the answer works
7 0
3 years ago
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