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Gnom [1K]
2 years ago
14

42° X Х x = degrees tar PLEASE HELP ITS URGENT

Mathematics
1 answer:
Tema [17]2 years ago
5 0

Answer:

x = 48°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°, thus

x = 180° - (90 + 42)° = 180° - 132° = 48°

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What is the simplest form of 4a + 8b/12​<br> Step by step pls
shutvik [7]

Answer:

4a + 2b/3

Step-by-step explanation:

focus on 8b/12 first:

factor 8b/12 by 4 ---> 8b/12 = 4(2)b/4(3) ----> cancel 4 in the denominator and the nominator ---> 8b/12 = 4(2)b/4(3) = 2b/3

then, go back to 4a:

4a is in its simplest form, it can't be factor

therefore, plus 4a and 2b/3 = 4a + 2b/3

5 0
3 years ago
How many decibels is this? show work​
slavikrds [6]

Answer:

  • <u>115 dB</u>

Explanation:

<u>1. Given equation:</u>

\beta =10log(\frac{I}{I_0})\\\\ I_0=10^{-12}W/m^2

<u>2. Given intensity:</u>

I=0.315W/m^2

<u>3. Decibels</u>

\beta =10log(0.315/10^{-12})\\ \\ \beta =10log(315,000,000,000)\\ \\ \beta =10(11.498)=114.98\approx 115

4 0
3 years ago
Simplify 7 – (–12) – 5
kherson [118]

Answer:

14

Step-by-step explanation:

1. Do the "Two Mark" Rule

    -  7 + (+12) - 5

2. Do your addition before subtracting

    - 7 + 12 = 19

3. Subtract your remaining two numbers

   -  19 - 5 = 14

5 0
3 years ago
A guy-wire is attached from the ground to the top of a pole for support. If the angle of elevation to the pole is 67° and the wi
zubka84 [21]
100 and 70 for the 67 and 137
4 0
3 years ago
What number is equivalent to 6.75×10^-4
Leni [432]
Not sure what your asking but:
0.000675 is equivalent to 6.75x10^-4

hope this helps
4 0
3 years ago
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