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3 years ago

Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)

1 answer:

5 0

Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)

28 x 4.36 = $122.08

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What is the average rate of change of h over the interval {1,2}?

kondaur [170]

Answer:

Step-by-step explanation:

The average rate of change of h(x) in the closed interval [ a, b ] is

$\frac{h(b)-h(a)}{b-a}$

Here [ a, b ] = [ 1, 2 ] , then

h(b) = h(2) = 0 ← from table for x = 2

h(a) = h(1) = - 3 ← from table for x = 1 , then

average rate of change = $\frac{0-(-3)}{2-1}$ = $\frac{0+3}{1}$ = 3

4 0

3 years ago

hellllllllpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

tangare [24]

Answer:

see below.

Step-by-step explanation:

1st row has four small boxes

2nd row has three big boxes

big box 1 has no items ragged in it.

big box 2 has small box 1 and also small box 1 dragged into it.

big box 3 has small box 3 and small box 4 dragged into it.

5 0

3 years ago

The illustration below is a graph of the polynomial function P(x). The graph crosses the x-axis 2 times and touches the x-axis o

Anastaziya [24]

The polynomial graph crosses the x-axis at two points and touches x-axis at one point. It indicates the graph has four roots:

$x=-1.5$
$x=-2$
$x=4$
$x=4$

The last two roots have equal value as the graph touches the x-axis (not crosses it)

The graph has three unique roots

4 0

3 years ago

A set of middle school student heights are normally distributed with a mean of 150150150 centimeters and a standard deviation of

adell [148]

Answer:

71.57% of student heights are lower than Darnell's height

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 150, \sigma = 20$