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Marrrta [24]
3 years ago
9

Work out the mean. 1, 3, 3. 4. 6, 9, 9

Mathematics
2 answers:
I am Lyosha [343]3 years ago
8 0
1+3+3+4+6+9+9 is 35
7 numbers so divide by 7
35/7 = 5
Mean is 5
gogolik [260]3 years ago
7 0
The mean is 5 because you add them up and Divide by how many are there so 7
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Lenny is competing with his cousin, Jasper, in an indoor rock-climbing contest. At the start of the climb, Lenny makes his way 5
SVEN [57.7K]

Answer:

4\frac{1}{2} feet further.

Step-by-step explanation:

Since these are mixed numbers that are both in fourths, we can easily subtract the two numbers. However, I find it easier if we first convert both mixed numbers into improper fractions.

5\frac{1}{4} = \frac{5\cdot4+1}{4}  = \frac{21}{4}

9\frac{3}{4} = \frac{9\cdot4+3}{4}  = \frac{39}{4}

Now we can subtract the numerators:

\frac{39}{4} - \frac{21}{4} = \frac{39-21}{4} = \frac{18}{4}

\frac{18}{4} simplifies down to \frac{9}{2}.

Converting  \frac{9}{2} to a mixed number is easy - 2 goes into 9 4 times (8) with one remainder so:

4\frac{1}{2} .

Hope this helped!

4 0
3 years ago
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Mariana [72]
Seven and a half hours
3 0
3 years ago
A disc is thrown into the air with an upward velocity of 20 ft/sec. Its height h in feet after t seconds is given by the functio
labwork [276]

Answer:

Time t = 1.39 seconds

Step-by-step explanation:

Given;

Initial velocity v = 20 ft/sec

height equation;

h = -16t^2 + 20t + 6

How long does it take for the disc to be caught 3 feet off the ground;

At this point h = 3

Substituting h = 3 into the height equation;

3 = -16t^2 + 20t + 6

-16t^2 + 20t + 6 - 3 = 0

-16t^2 + 20t + 3 = 0

Solving the quadratic equation;

t = 1.39 or t = -0.14

Since t cannot be negative;

Time t = 1.39 seconds

3 0
3 years ago
1 + 1? <br> .......……………………
masya89 [10]
Hmm difficult one but I think ima have to go with 2?????
4 0
3 years ago
Read 2 more answers
Use the formula S = 40,000 (1.06)t to calculate your salary after 4 years. Round your answer to the nearest dollar.
Pavlova-9 [17]

Answer:

d. $50,499

Step-by-step explanation:

Given:

S = 40,000 (1.06)^t

Where,

t=4 years

S=40,000(1.06)^4

=40,000(1.26247696)

=50,499.0784

To the nearest dollar

S=$50,499

The answer is d. $50,499

5 0
3 years ago
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