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kolezko [41]
3 years ago
5

Evaluate the expression : common log of square root 9/25.

Mathematics
1 answer:
tekilochka [14]3 years ago
4 0

You want log √(9/25).  Recognizing that √9 = 3 and that √25 = 5, we get

log 3/5, which by rules of logs comes out to log 3 - log 5.

To four decimal places:

log 3 - log 5 = 0.4771 - 0.6990, or -0.2218.

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Komok [63]

Answer:

Step-by-step explanation:

The answer is 7 first take away the last number don’t throw it away you still need it but just to make it easier then you do 8-3 which is 5 so then bring the last number back and you add 2 which gives you 7 as your answer

3 0
3 years ago
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Two joggers set out at the same time from their homes 24 miles apart. They agree to meet at a point
Andrej [43]

9514 1404 393

Answer:

  5 mph, 11 mph

Step-by-step explanation:

Together, they cover 24 miles in 1.5 hours, so their total rate of speed is ...

  (24 mi)/(1.5 h) = 16 mi/h

If s is the rate of the slower jogger, then s+6 is the rate of the faster one. Their total speed is ...

  s + (s+6) = 16

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  s+6 = 11

The rates of the joggers are 5 mph and 11 mph.

6 0
2 years ago
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Solve for z: -21 = z - (-6 - 2z)
Pepsi [2]

Answer:

z = -9

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Terms/Coefficients/Degrees

Step-by-step explanation:

<u>Step 1: Define</u>

-21 = z - (-6 - 2z)

<u>Step 2: Solve for </u><u><em>z</em></u>

  1. Distribute negative:                      -21 = z + 6 + 2z
  2. Combine like terms:                     -21 = 3z + 6
  3. Isolate <em>z</em> term:                               -27 = 3z
  4. Isolate <em>z</em>:                                        -9 = z
  5. Rewrite:                                         z = -9
6 0
3 years ago
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Given the similarity statement ΔHIJ ∼ ΔWXY, which angle corresponds with ∠X?
saul85 [17]
Angle I. Because it’s second in the order just like X. They are congruent
8 0
2 years ago
Use substitution <img src="https://tex.z-dn.net/?f=w%20%3D%20z%5E%7B2%7D" id="TexFormula1" title="w = z^{2}" alt="w = z^{2}" ali
Nutka1998 [239]

Answer:

4

+

3

+

2

+

+

1

=

0

Step-by-step explanation:

Answered about

6 0
2 years ago
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