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klasskru [66]
2 years ago
15

Please help I’m terrible at math scale factors

Mathematics
2 answers:
zysi [14]2 years ago
6 0
First one is false, second one is true.
pochemuha2 years ago
4 0

Answer:

2.5

Step-by-step explanation:

Calculate the scale factor as the ratio of corresponding sides of the image to the original.

here image is 5 and original is 2

scale factor = \frac{5}{2} = 2.5

scale factor of 0.4 is False

scale factor of 2.5 is True

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sleet_krkn [62]

Answer:

The answer is "The cops were correct because the average speed would have been about 39.73 miles per hour as per the calculations."

Step-by-step explanation:

Finding the average skid distance:

Average=\frac{70+71+72}{3}=\frac{213}{3}=71

Calculating the skid:  

S=\sqrt{30 \times D \times f\times n}\\\\  

   =\sqrt{30 \times 71 \times 0.78\times 0.95}\\\\=\sqrt{1,578.33}\\\\=39.73

8 0
3 years ago
I need help with this question... phenobarbital elixir contains 2 grams in 1 liter of elixir. How many milligrams of phenobarbit
posledela

To solve this problem, all we need is the conversion factor.

We know that there are:

1 liter = 202.884 teaspoons

 

Therefore the mass of Phenobarbital is:

mass = (2 grams / 1 Liter) * (1 teaspoon) * (1 Liter / 202.884 teaspoons)

<span>mass = 0.00986 g = 9.86 x 10^-3 g = 9.86 mg</span>

8 0
3 years ago
Read 2 more answers
Find a third-degree polynomial equation with rational coefficients that has roots –4 and 2 + i
ella [17]
If it has rational coefients and is a polygon
if a+bi is a root then a-bi is also a root

the roots are -4 and 2+i
so then 2-i must also be a root


if the rots of a poly are r1 and r2 then the factors are
f(x)=(x-r1)(x-r2)

roots are -4 and 2+i and 2-i

f(x)=(x-(-4))(x-(2+i))(x-(2-i))
f(x)=(x+4)(x-2-i)(x-2+i)
expand
f(x)=x³-11x+20
8 0
3 years ago
Identify the special name for ∠3 and ∠10
quester [9]

Answer:

square roots ?

Step-by-step explanation:

8 0
2 years ago
Write 0.6 as a percentage.
nataly862011 [7]

Answer:

60%

Step-by-step explanation:

all you need to do is multiply this by 100 (move two decimal places to the right).

0.6--> 60

60 percent

3 0
3 years ago
Read 2 more answers
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