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3 years ago

What is the length of BC¯¯¯¯¯ ?

Mathematics

1 answer:

MrMuchimi3 years ago

5 0

2x - 24 = x - 2
2x - x = -2 + 24
x = 22

BC = x = 22

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Gabriella bought a pile of bricks to build a brick wall. Yesterday, she used 5/8 of the bricks. Tomorrow, she plans to use anoth

velikii [3]

she would have 1/8 bricks left, hope this helps

7 0

2 years ago

Suppose that in a bowling league, the scores among all bowlers are normally distributed with mean µ = 182 points and standard de

exis [7]

Answer:

209 points

Step-by-step explanation:

Mean points scored (μ) = 182 points

Standard deviation (σ) = 14 points

The z-score for any given game score 'X' is defined as:

$z=\frac{X-\mu}{\sigma}$

At, the 97th percentile of a normal distribution, the z-score, according to a z-score table, is 1.881.

Therefore, the minimum score, X, needed for a bowler to receive a trophy is:

$1.881=\frac{X-182}{14}\\X=208.334$

Since only whole point scores are possible, X=209 points.

3 0

2 years ago

Identify the linear equation.

Olin [163]

Answer:

Step-by-step explanation:

Linear equation should not have any power, or fractions

6 0

2 years ago

Find an explicit formula for the geometric sequence -8,-40,-200,-1000

barxatty [35]

<h2>An explicit formula for the given geometric sequence, $a_{n} =\dfrac{-8}{5} (5)^{n}$ </h2>

Step-by-step explanation:

The given geometric sequence:

- 8, - 40, - 200, - 1000

Here, first term(a) = - 8, common ration(r) = $\dfrac{-40}{-8}$ = 5

To find, an explicit formula for the given geometric sequence = ?

We know that,

The explicit formula for the geometric sequence

$a_{n} =ar^{n-1}$

∴ An explicit formula for the given geometric sequence

$a_{n} =(-8)(5)^{n-1}$

$a_{n} =\dfrac{-8}{5} (5)^{n}$

∴ An explicit formula for the given geometric sequence, $a_{n} =\dfrac{-8}{5} (5)^{n}$

6 0

3 years ago

Given trapezoid WXYZ, what is XY?

elena55 [62]

Applying the trapezium midsegment theorem, the length of XY is: 30.

<h3>What is the Trapezium Midsegment Theorem?</h3>

Trapezium midsegment theorem states that the length of the median that joins two sides of a trapezium equals half the sum of he two bases of the trapezium.

Thus:

Let XY = x

Therefore:

WZ = 4/3(x)

DE = 35 (given)

Thus:

35 = 1/2(4/3x + x)

2(35) = 7x/3

70 = 7x/3

3(70) = 7x

210 = 7x

x = 30

x = XY = 30

Therefore, applying the trapezium midsegment theorem, the length of XY is: 30.

Learn more about trapezium midsegment theorem on:

brainly.com/question/4451516

6 0

2 years ago