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strojnjashka [21]

2 years ago

13

a small airplane used 5 2/3 gallons of fuel to fly a 2 hour trip how many gallons were used each hour

1 answer:

Marat540 [252]2 years ago

7 0

2.83 gallons were used per hour

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The best method for obtaining a representative sample is to choose a _____ from the population of interest.

Ilya [14]

Answer:

Random sample

Step-by-step explanation:

In statistics, a sample randomly taken from an investigated population, usually known as a random sample. To avoid having bais from our response and for it to have the best chance of it being indicative of the entire population, our sample must be random. This random sample chosen must contain subjects related to the data in the population we what to obtain a result from.

3 0

2 years ago

Hey please help me with this one.<br><br>- Find the value fd a

valkas [14]

Answer: a = 15

Step-by-step explanation:

6a + 10 = 3a + 55

Subtract 10 from both sides

6a = 3a + 45

Subtract 3a from both sides

3a = 45

Divide each side by 3

a = 15

5 0

2 years ago

Please helppp!! ill give brainliest <333

hichkok12 [17]

Answer: Area: $D. 32\frac{6}{20}$

Step-by-step explanation:

Step 1: Convert the Expressions

$4\frac{3}{4}*6\frac{4}{5}$

$\frac{19}{4}*\frac{34}{5}$

Step 2: Reduce the Numbers

$\frac{19}{4}*\frac{34}{5}$

$\frac{19}{2}*\frac{17}{5}$

Step 3: Multiply

$\frac{19}{2}*\frac{17}{5}$

$\frac{323}{10}$

Step 4: Simplify

$\frac{323}{10}$

$32\frac{6}{20}$

Please mark brainliest if this helped! :)

4 0

2 years ago

Measures of minor arcs equal measures of inscribed angles.. True. False

drek231 [11]

False

Inscribed angle can be obtained by dividing the measure of the minor arc into two.

6 0

2 years ago

Read 2 more answers

Solve on the interval [0/2pi]<br><br> 1-cos(theta) = (1/2)

Airida [17]

Answer:

Final answer is $x=\frac{\pi}{3}$ and $x=\frac{5\pi}{3}$ .

Step-by-step explanation:

Given equation is $1-\cos\left(\theta\right)=\frac{1}{2}$

Now we need to find the solution of $1-\cos\left(\theta\right)=\frac{1}{2}$ in given interval $[0, 2\pi ]$ .

$1-\cos\left(\theta\right)=\frac{1}{2}$

$-\cos\left(\theta\right)=\frac{1}{2}-1$

$-\cos\left(\theta\right)=-\frac{1}{2}$

$\cos\left(\theta\right)=\frac{1}{2}$

which gives $x=\frac{\pi}{3}$ and $x=\frac{5\pi}{3}$ in the given interval.

Hence final answer is $x=\frac{\pi}{3}$ and $x=\frac{5\pi}{3}$ .

6 0

2 years ago