Which is NOT a direct method used to find the zeros/roots/x-intercepts of a quadratic function?

Can you please help me out

Harlamova29_29 [7]

Answer:

it would be 61 tiles i think

Step-by-step explanation:

3 0

2 years ago

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the greatest volcanic eruption in recorded history took place in 1815 on the indonesian island of sumbawa, when the volcano tamb

algol [13]

Answer:

$166\frac{2}{3}\ m$

Step-by-step explanation:

Let

x ----> the average depth of the resulting layers of ash and rock

we know that

To find out the average depth, divide the cubic kilometers of molten rock by the area where all the ejected material fell.

so

$\frac{100\ km^3}{600\ km^2}=\frac{1}{6}\ km$

Convert to meters

Remember that

$1\ km=1,000\ m$

so

$\frac{1}{6}\ km=\frac{1}{6}(1,000)=\frac{1,000}{6}=\frac{500}{3}\ m$

Convert to mixed number

$\frac{500}{3}\ m=\frac{498}{3}+\frac{2}{3}=166\frac{2}{3}\ m$

7 0

3 years ago

An item costs n dollars. If the price of the item increases by 25%, the new price can be represented by the expression n + 0.25n

Schach [20]

D.

Explanation

I saw this answer in a different question today.

Moreover, 1n + 0.25n = 1.25n

4 0

2 years ago

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According to a college survey, 22% of all students work full time. Find the standard deviation for the random variable X, the nu

mixer [17]

Answer:

1.66

Step-by-step explanation:

Calculation to find the standard deviation for the random variable X of the number of students who work full time in samples of size

Using this formula

Standard deviation(X)=√np(1−p)

Where,

n represent the number of students=16

p represent the percentage of all students who work full time=22

Let plug in the formula

Standard deviation(X)=√16(0.22)(1−0.22)

Standard deviation(X)=√(3.52)(0.78)

Standard deviation(X)=√2.7456

Standard deviation(X)=1.656

Standard deviation(X)=1.66 (Approximately)

Therefore the standard deviation for the number of students who work full time in samples of size 16 will be 1.66

8 0

3 years ago

statistics on stepfamilies are difficult to attain, and the statistics we do have are probably underestimates. perfectly accurat

Vilka [71]

Statistics on stepfamilies are difficult to attain, and the statistics we do have are probably underestimated.

Statistics is the discipline that worries the collection, organization, analysis, interpretation, and presentation of statistics. In applying the information to a scientific, industrial, or social problem, it is traditional, to begin with, a statistical populace or a statistical version to be studied.

Statistics are carried out in marketing to identify marketplace traits and to measure and evaluate the capacity and achievement of advertising packages. The secret to successful advertising is to perceive the goal marketplace accurately and to use powerful advertising communications channels and strategies to attain it.

A stepfamily is a circle of relatives in which at least one discern has children that aren't biologically associated with their partner. both discern, or each may additionally have kids from previous relationships or marriages.

Learn more about Statistics here: brainly.com/question/12150562

#SPJ4

3 0

1 year ago