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Dmitriy789 [7]
4 years ago
12

Select the correct answer.

Mathematics
2 answers:
Nitella [24]4 years ago
7 0

Answer:

D. The mean number of hours will increase.

Step-by-step explanation:

bagirrra123 [75]4 years ago
4 0

Answer: it is B

Step-by-step explanation:

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A 48 in, by 36 in. poster is reduced to an image that is 8 in. by 6 in. in size to be used for a flyer. What is the scale factor
Aliun [14]
Divide the original size by the reduced size:

48 / 8 = 6
36 / 6 = 6

Both sides were reduced by the same amount, and because the image was made smaller the scale factor would be a fraction less than 1.

The scale factor would be 1/6

The answer is B.
4 0
4 years ago
Read 2 more answers
Jaden drove 200 miles in 4 hours. At this speed, how long with it take him to drive 300 miles? How long will it take him to driv
Kisachek [45]

Answer:

10 hours to drive 500 miles  

6 hours to  drive 300 miles  

Step-by-step explanation:

Hi, to answer this we have to calculate the speed rate first:

Speed = distance /time

Speed = 200 miles / 4 hours = 50 miles per hour

So, to find the time for each number of miles:

Time = distance /speed  

For 500 miles:

t = 500/50 = 10 hours

For 300 miles

t = 300/50 =6 hours  

So, in conclusion:

It will take 10 hours to him drive 500 miles  

It will take 6 hours to him drive 300 miles  

7 0
3 years ago
Read 2 more answers
What is the range of f(x) = A cos(x) +b or<br> g(x) = A sin(x)+b?
vagabundo [1.1K]

Answer:

Step-by-step explanation:

The range of f(x) = cos(x) is [-1, 1].

That of f(x) = A cos(x)        is [-A, A], and

That of f(x) = A cos(x) + 2 is [ b-A, b+A ].

The function g(x) = A sin(x)+b has the same range.

3 0
3 years ago
Let R be a ring with identity and let S be a subring of R containing the identity. Prove that if m is a unit in S then u is a un
kumpel [21]

Explanation:

Since m is a unit in S, then, there exists b ∈ S such that m*b = 1, where 1 is the identity. Since S is a subring of R we have that m ∈ R, and therefore b is also the multiplicative inverse of m in R. The converse isnt true.

The set of real numbers is a Ring with the standard sum and multiplication. Every real number different from 0 has a multiplicative inverse. For example, the inverse of 2 is 1/2. However, 2 is not a unit on the subring of Integers Z.

5 0
4 years ago
How do magnetic and electrical components of electromagnetic waves travel in relation to each other ?
olganol [36]

Answer:

at right angles. ...................electromagnetic waves is propagated when the electric and magnetic field component oscillate at right angles to each other. A changing electric field will produce a changing magnetic field and a changing magnetic field produces a changing electric field.

Step-by-step explanation:

8 0
3 years ago
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