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worty [1.4K]
2 years ago
15

When solving an equation, Gabrielle’s first step is shown below. Which property justifies Gabrielle’s first step?

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0
I need help too !!!!!!!!
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In FGH, the measure of H=90°, HF=91 feet, and GH = 50 feet. Find the measure of F to the nearest degree.
Rudik [331]

Given:

The angle of H=90°, HF=91 feet, and GH = 50 feet.

The objective is to find the measure of angle<em> F.</em>

In the given right angled triangle, the side opposite to the requierd angle is called opposite side, and the other smaller side is called adjacent side.

The trigonometry formula which relates with the opposite and adjacent side is,

\tan \theta=\frac{opposite}{adjacent}

Now substitute the value of opposite and adjacent in the above formula to find the value of angle <em>F</em>.

\begin{gathered} \tan \theta=\frac{50}{91} \\ \theta=\tan ^{-1}(0.549) \\ \theta=28.787^0 \\ \theta\approx29^0 \end{gathered}

Hence, the value of angle <em>F</em> is 29 degree.

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1 year ago
What is the reciprocal of 4/12?​
fenix001 [56]

Answer: 12/4 or 3

Step-by-step explanation: Switch the numerator and denominator. This should leave you with the answer above.

7 0
3 years ago
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Simplify the expression.<br> 28 + 4<br> 2<br> A. 9<br> B. 11<br> C. 16<br> D. 22
padilas [110]

Answer:

C) 16

Step-by-step explanation:

\dfrac{28+4}{2}=\dfrac{32}{2}=16

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2 years ago
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The average lateness for one of the top airline companies is 10 minutes. The variance of the lateness measure is calculated as 9
Soloha48 [4]

Answer:

The z score for the airplane arriving 13 minutes after arrival time is 0.33

Step-by-step explanation:

Using normal distribution,

The average lateness for one of the top airline companies is 10 minutes. So our mean, u = 10

The variance, s of the lateness measure is calculated as 9.

x =13 which stands for arrival time.

Using normal distribution,

z = (x - u)/s

z = (13 - 10)/9 = 3/9 = 0.33

The z score for the airplane arriving 13 minutes after arrival time is 0.33. The probability value of the z score can be found by looking at the Normal distribution table

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3 years ago
Tim’s mom filled the gas tank in her SUV and spent $82.00 for 25.5 gallons of unleaded gasoline. What is the constant of proport
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I just don’t know what to say I look like a little bit confused lol lol
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