2 years ago

True or False Scale Factors can be written as fractions in simplest form.

Mathematics

2 answers:

Nuetrik [128]2 years ago

7 0

Answer:

Step-by-step explanation:

scale factor is the ratio of the model measurement to the actual measurement in simplest form

PLS MARK AS BRAINLIEST...

weqwewe [10]2 years ago

3 0

True please give brainliest

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The force F between 2 objects is inversely proportional to the square of the distance, d between them. The force is 0.36 newtons

LenaWriter [7]

Answer:

0.73 N to 2 dp.

Step-by-step explanation:

F = k/d^2 where k is a constant , F = force and d = distance.

Substituting:

0.36 = k / (6)^2

k = 36*0.36 = 12.96 s the equation is F = 12.96 / d^2.

When d = 4.2 :

F = 12.96 / 4.2^2

F = 0.73 Newtons to 2 dp.

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3 years ago

Manny can assemble a computer by himself in 50 minutes. Lucy does the same job in 45 minutes. How long will it take to assemble

jonny [76]

Manny can assemble a computer in 50 minutes. That means, in a minute Manny does $\frac{1}{50}$ job.

Lucy can assemble a computer in 45 minutes. That means, in a minute Lucy does $\frac{1}{45}$ job.

If they are working together, in a minute they will do:
$\dfrac{1}{50} + \dfrac{1}{45}$
$= \dfrac{9}{450} + \dfrac{10}{450} \text{(equalize the denominator)}$
$=\dfrac{19}{450}$
In a minute they will do $\frac{19}{450}$ job

To finish the job they will do it in $\frac{450}{19}$ minutes or about 24 minutes.

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3 years ago

The function F(c)=9/5c+32

seraphim [82]

Answer:

The formula is C=5/9(F-32).

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3 years ago

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Cameron surveys every tenth student who walks into school to determine the favorite type of movie of students in his school. wha

Katarina [22]

So every 1 out of 10 students is checked also is there anymore to this question?