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2 years ago

Tell which property is represented 8•12•5=8•(12•5)

Mathematics

1 answer:

Gennadij [26K]2 years ago

3 0

Answer:

Associative property

Step-by-step explanation:

Associative property allows you to put parenthesis in a part of the equation. We can only apply associative property on a part with multiplication or addition. If you do it with at an equation with subtraction or division you can change the result and make calculation mistake.

In this question, all of the operation used is multiplication. The result won't change even if you put parenthesis, both will give result of 480

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Joseph is creating a dilation through point B with a scale factor of 2. Which statements about the dilation are correct? Check a

swat32

Answer:

Options (1), (2) and (4).

Step-by-step explanation:

Given question is incomplete; Find the complete question in the attachment.

Triangle ABC is a right triangle.

ΔABC has been dilated by a scale factor of 2 forming ΔA'B'C'.

These are the observations,

1). A and A' will be co-linear.

2). Since the given triangle has been dilated about a point B therefore, after dilation vertex B and B' will at be same location.

3). Length of B'C' = 2BC

4). AB and BC are the segments which will lie on the sides BA' and BC'.

5). Pre-image ABC will be inside the image A'B'C'.

Therefore, Options (1), (2) and (4) will be the answer.

4 0

2 years ago

Read 2 more answers

An estimated regression equation that was fit to estimate ductility in steel using its carbon content was found to be significan

AnnZ [28]

Answer:

At a level of 95%, it is expected that the interval [0.45; 11.59] contains the value of the ductility in steel when its carbon content is 0.5%.

Step-by-step explanation:

Hello!

Considering the dependent variable:

Y: Ductility in steel.

And the independent variable:

X: Carbon content of the steel.

The linear regression was estimated and a prediction interval was calculated.

The prediction interval is calculated to predict a value that the variable Y (response variable) can take for a given value of the variable X (predictor variable) in the definition range of the linear regression line. Symbolically [Y/X= $x_{0}$ ]

In this case 95% prediction interval for Y/X=0.5

At a level of 95%, it is expected that the interval [0.45; 11.59] contains the value of the ductility in steel when its carbon content is 0.5%.

I hope it helps!

6 0

2 years ago

What is the arc measure of D C in degrees

Mashutka [201]

Hello there!

Sense this is a 360 degree angle, it is divide by 2. This would then be considered 180. If you (noticed) on the other side, it shows us that . . .

$AB=19 \\ and \ AB=CD$

We then do (180-19)

$DC= \ \boxed{161}$

4 0

3 years ago

What is the scale factor of triangle ABC to triangle XYZ?

Alex

9514 1404 393

Answer:

C. 6

Step-by-step explanation:

XY/AB = 30/5 = 6

Triangle ABC is scaled by a factor of 6 to make triangle XYZ.

5 0

3 years ago

A ring toss toy is composed of a rectangular prism on top of a cylinder. The rectangular prism is completely filled with water.

anastassius [24]

Answer: 270 in cubic meters

270^3

Step-by-step explanation:

V=LxWxH

= 2cm x 9cm x 15cm

=270cm^3

5 0

2 years ago