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3 years ago

Please help its do now ... .. .

Mathematics

1 answer:

never [62]3 years ago

3 0

Answer:

21.

Step-by-step explanation:

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The length width and height of a rectangular solid are 8,4,1 respectively what is the length of the longest line segment whose e

LUCKY_DIMON [66]

Answer:

9 units

Step-by-step explanation:

Given

$Length = 8$

$Width = 4$

$Height = 1$

Required

Determine the length of the longest segment

To do this, we use:

$Longest = \sqrt{Length^2 + Width^2 + Height^2}$

So, we have:

$Longest = \sqrt{8^2 + 4^2 + 1^2}$

$Longest = \sqrt{64 + 16 + 1}$

$Longest = \sqrt{81}$

Take positive square root

$Longest = 9$

<em>Hence, the length of the longest segment is 9 units</em>

3 0

3 years ago

Determine the axis of symmetry and the vertex of the given function.<br> y = 2x2 - 12x + 21

mestny [16]

Answer:

the vertex is ( 3 , 3)

Symetric axis‘s equation: x = 3

Step-by-step explanation:

Let‘s name the function ” f ”

f(x) = y = 2x² - 12x + 21

the vertex has coordinates of ( -b/2a , f(-b/2a) )

-b/2a = 12/2(2) = 12/4 = 3

f(-b/2a) = f(3) = 2(3)² - 12(3) + 21 = 3

then the vertex is ( 3 , 3)

the symetric axis has the equation :

x = -b/2a

then

4 0

3 years ago

If data set A has a smaller standard deviation than data set B, what would be different about their distributions?

Aleksandr-060686 [28]

Answer:

Data set B would have flatter distribution with more data in each tail.

Step-by-step explanation:

We are given the following in the question:

Data set A has a smaller standard deviation than data set B.

$\sigma_A < \sigma_B$

Standard Deviation:

It is a measure of dispersion of data.
It tells us about how much the data deviates around the mean.
It tells us about the overall deviation of the data from the mean.
The standard deviation is small when the data are all close to the mean showing less variation.
The standard deviation is larger when the data values are farther away from the mean, showing more variation.

Since data A has less standard deviation than data B, then data B has a flatter graphical representation as more of the data are present on the tails.

8 0

3 years ago

Write a congruence statement for the figures shown.

Triss [41]

Answer: If two sides in one triangle are congruent to two sides of a second triangle, and also if the included angles are congruent, then the triangles are congruent. Using labels: If in triangles ABC and DEF, AB = DE, AC = DF, and angle A = angle D, then triangle ABC is congruent to triangle DEF.

Hope it helps

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3 years ago

Solve 821 x 54 using an area model.

IRISSAK [1]

Check the image below for your answer. Hope this helped!

8 0

4 years ago

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