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3 years ago

NEED THIS IS 30 MIN!!! DUE NOW!!! HELPPPPPPPP! PLEASEEEE!

Mathematics

2 answers:

scoray [572]3 years ago

7 0

Answer:

D) 12÷x

Step-by-step explanation:

Since the time to Tony's house is 12 miles, and it asks for an average, you divide the "average" by 12 like normal. I suppose you ask the teacher questions in the future and not just post all the homework questions on brainly. Thank you and have a good day :D

inysia [295]3 years ago

6 0

Answer:

a.) 24 minutes

30 miles per hour, means it would take 2 minutes per mile. so 12x2=24.

b.)36

40 miles per hour means it would take 3 minutes per mile. so 12x3=36

c.)80 miles

30+10=40 so 40x2=80 (2 representing the hours)

d.) (I'm not so sure about D but I'll try to give a reasonable answer)

IF X is 30 mph, then she'd drive 60 miles in 2 hours.

(Since it only gives me 2 hours and it doesn't tell me what x Is I can't give a straight answer.)

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4 years ago

What is 2.34 billion in scientific notation

Gre4nikov [31]

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3 years ago

Question:

aivan3 [116]

Answer:

part A) The scale factor of the sides (small to large) is 1/2

part B) Te ratio of the areas (small to large) is 1/4

part C) see the explanation

Step-by-step explanation:

Part A) Determine the scale factor of the sides (small to large).

we know that

The dilation is a non rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional

Let

z ----> the scale factor

$\frac{CB}{C'B'}=\frac{CD}{C'D'}=\frac{BD}{B'D'}$

The scale factor is equal to

$z=\frac{CB}{C'B'}$

substitute

$z=\frac{4}{8}$

simplify

$z=\frac{1}{2}$

Part B) What is the ratio of the areas (small to large)?

<em>Area of the small triangle</em>

$A=\frac{1}{2}(2)(4)=4\ units^2$

<em>Area of the large triangle</em>

$A=\frac{1}{2}(4)(8)=16\ units^2$

ratio of the areas (small to large)

$ratio=\frac{4}{16}=\frac{1}{4}$

Part C) Write a generalization about the ratio of the sides and the ratio of the areas of similar figures

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In similar figures the ratio of its areas is equal to the scale factor squared

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4 years ago

Multiply the problem,

frosja888 [35]

Answer:

The answer to your question is the letter B

Step-by-step explanation:

Data

| 5 0 | | 2 - 1 |

| 3 -5 | | 2 - 2|

Process

1.- This is the product of two matrices 2 x 2 so the result will be a 2 x 2 matrix.

- Multiply the first row of the first matrix by the first column of the second matrix.

-Multiply the first row of the first matrix by the second column of the second matrix.

- Multiply the second row of the first matrix by the first column of the second matrix.

-Multiply the second row of the first matrix by the second column of the second matrix.

| 5 0 | | 2 - 1 | | (5 x 2) + (0 x 2) (5 x -1) + (0 x -2) |

| 3 -5 | | 2 - 2| = | (3 x 2) + (-5 x 2) (3 x -1) + (-5 x -2)|

= | 10 + 0 -5 + 0 |

| 6 - 10 -3 + 10|

= | 10 - 5 |

| -4 7|

7 0

4 years ago