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2 years ago

Select all of the scales that are equivalent to 3 cm to 4 km.

1 answer:

6 0

In mathematics, a scale can be described in charts as a marking system at predefined times, which determines the relationship between the units that are being used and their images on the graph, and the further calculation can be defined as follows:

Since in this question, the ratio is between 3 cm to 4 km you can make a $\bold{\frac{3}{4}=\frac{cm}{km}}$ split, and if you are split between 3 and 4, you get the ratio between $\bold{\frac{\frac{3}{4 \ cm}}{1\ km} = \frac{3\ cm}{ 4\ km}}$ .

$\bold{\to \frac{3 }{ 4}= 0.75}$

Therefore the final answer is "0.75 cm to 1 km"

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4√90 in simplest radical form.

eduard

Answer:

It’s an irrational number. 3.08007288, just round it to the nearest whole number and you’ll get 3.

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2 years ago

Factor completely 12a^3d^2 – 6ad^3

lorasvet [3.4K]

Answer:

$12a^3d^2-6ad^3$

To factor an integer, we need to divide it by the ascending sequence of primes 2, 3, 5

In the end, the number of times each prime divides the original integer becomes its exponent.

Prime number 2 to the power of 2 equals 4 .

Prime number 3 to the power of 1 equals 3 .

$2^{2} \times 3\times a^{3} \times b^{2} -(2\times3)ad^{3}$

Result:- $6ad^2\left(2a^2-d\right)$

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3 years ago

The population of a city has increased by 36% since it was last measured. If the current population is 71,400,what was the previ

arsen [322]

Answer:

52,500

Step-by-step explanation:

We can convert the word problem into an equation:

1.36x= 71,400

x represents the number of people in the previous population

We divide both sides by 1.36

x=52,500

The previous population was 52,500!

Hope this helps!

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3 years ago

Which is the rate of change for the interval between 3 and

miskamm [114]

Answer: 2

Step-by-step explanation:

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3 years ago

Write the equation of a line perpendicular to 5x−9y=−8 that passes through the point (−5,8).

Fantom [35]

Answer: y = -(9/5)x - 1

Step-by-step explanation:

Rewrite the equation in standard form: y = (5/9)x+(8/9). [y=mx+b]

A line perpendicular to this would have a slope that is the negative inverse of the original slope (5/9), which would make it -(9/5). The y-intercept would also change, but we don't know the value, yet. For now, we'll use "b" for the y-intercept. This results in a perpendicular line:

y = -(9/5)x + b

We can calculate b, the y-intercept, by using the point (-5,8) and solving for b.

8 = -(9/5)*(-5) + b

8 = (9) + b

b = -1

The line perpendicular to 5x−9y=−8 that passes through the point (−5,8) is

y = -(9/5)x - 1

7 0

3 years ago