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3 years ago

Find the mean: {8.5, 7.5, 7.5, 7.5 4, 6, 10,7.5, 6, 7.5}

Mathematics

1 answer:

satela [25.4K]3 years ago

4 0

Answer:Sum-43

Arithmetic mean (Simple Average) -5.375

Median-6

Range 12

Variance 14.12

Standard Deviation 14.12 = 3.76

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In an isosceles triangle the measure of the angle formed by two congruent sides is 80° what is the measure of each base triangle

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all the bases and sides are all each 80° then

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3 years ago

A skateboarder leaves a 12-foot tall ramp with an initial vertical velocity of 8 feet per sen

taurus [48]

To answer this, we substitute 12 ft to the f(h) in the given equation,
f(h) = -8t² + 8t + 12 = 12

Subtracting 12 from both sides of the equation will give us an answer of,

-8t² + 8t = 0

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2 years ago

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3 years ago

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Conner and Jana are multiplying (3⁵6⁸)(3⁹6¹⁰).

ad-work [718]

<h3>Conner work is correct. Jana work is wrong</h3>

Solution:

Given that,

Conner and Jana are multiplying:

$(3^56^8)(3^96^{10})$

Given Conner's work is:

$(3^56^8)(3^96^{10}) = 3^{5+9}6^{8+10} = 3^{14}6^{18}$

We have to check if this work is correct

Yes, Conner work is correct

From given,

$(3^56^8)(3^96^{10})\\\\3^5 \times 6^8 \times 3^9 \times 6^{10}$

Use the following law of exponent

$a^m \times a^n = a^{m+n}$

Therefore,

$3^5 \times 6^8 \times 3^9 \times 6^{10} = 3^5 \times 3^9 \times 6^8 \times 6^{10} = 3^{5+9} \times 6^{8+10} = 3^{14} \times 6^{18}$

Given Jana's work is:

$(3^56^8)(3^96^{10}) = 3^{5.9}6^{8.10} = 3^{45}6^{80}$

This is incorrect

The powers of same base has to be added. But here, powers are multiplied which is wrong

7 0

3 years ago

One Solution no solution infinitely many solutions 3x + 9 + 4x + x = _x+_

ss7ja [257]

All you need to do it combine like terms.

3x + 9 + 4x + x

(3x + 4x + x) + 9

8x + 9

i hope this was helpful for you!

8 0

3 years ago