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svetoff [14.1K]
3 years ago
15

How do I find a change in scale factors? I forgot to write notes on how to find a change in scale factors and can’t seem to find

a video. A formula and/or explanation would be absolutely wonderful! Or, a video recommendation from someone who explains it would do as well. :) This is for a seventh-grade level question.
Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

In two similar geometric figures, the ratio of their corresponding sides is called the scale factor.

To find the scale factor,we need to follow some rules:

locate two corresponding sides, one on each figure.

Write the ratio of one length to the other to find the scale factor from one figure to the other

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Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. 8cotθ + 3 = 5
galina1969 [7]

<u><em>Answer:</em></u>

θ = 76°

<u><em>Explanation:</em></u>

<u>The given equation is:</u>

8 cotθ + 3 = 5

8 cotθ = 5-3

8 cotθ = 2

cot θ = \frac{2}{8} = \frac{1}{4}

<u>Now, we find θ</u>

We know that the cot function is the inverse of the tan function.

The tan of an angle is positive in the first and third quadrants, therefore, the cot will be <u>positive</u> in the <u>first and third quadrants</u> as well

<u>Now, we are given the condition:</u>

0° ≤ x ≤ 90°

<u>Therefore, we know for sure that our angle is in the first quadrant</u>

θ = cot⁻¹(\frac{1}{4}) = 75.96° = 76° to the nearest degree

Hope this helps :)

5 0
4 years ago
First to answer correctly gets Brainliest<br> Please help!
Temka [501]

Answer:

-9.5-42.1/6=x

-8.6

-9.5+ 6x-8.5

-61.1

Step-by-step explanation:

4 0
3 years ago
What is the probability of picking a blue marble and rolling an odd number?
Paladinen [302]

Answer:

3/6 chance.

Step-by-step explanation:

To roll an odd number on a six sided dice (Guessing it's six sided) you would have to roll either a 1, 3, or 5.  That would it 3 choices.  You get the six by taking the amount (like the amount of sides on the dice).  You would then have a 3/6 chance of rolling an odd number.

6 0
3 years ago
Someone pls help me!! thank you!!
romanna [79]

Final Answer is 4.5

= 4.5hours more time was used on games than on research.

6 0
3 years ago
A biologist studied how cells grow by adding liquid protein to cell samples. She reported in her study that she divided 3/5 of a
r-ruslan [8.4K]

Answer: \dfrac{1}{5}\text{ of an ounce.}

Step-by-step explanation:

Given : A biologist studied how cells grow by adding liquid protein to cell samples.

She divided \dfrac{3}{5} of an ounce of liquid protein evenly among 3 cell samples.

Here , total quantity of liquid protein = \dfrac{3}{5} of an ounce

Total cell samples = 3

Now , Quantity of liquid protein given by her to each cell = (total quantity of liquid protein ) ÷ (3)

= \dfrac{3}{5}\times\dfrac{1}{3}=\dfrac{1}{5}\text{ of an ounce} .

Hence, Quantity of liquid protein given by her to each cell =  \dfrac{1}{5}\text{ of an ounce.}

4 0
3 years ago
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