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quester [9]
3 years ago
15

Find the product of 122.1 and 1/100. Explain what happens to the decimal point of the original number when you multiply it by? *

Mathematics
2 answers:
iVinArrow [24]3 years ago
7 0

Answer: 1.221

Step-by-step explanation: The decimal goes up by 2 places.

Wewaii [24]3 years ago
7 0

Answer:

The decimal goes up by 2 places

Step-by-step explanation:

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some say that to brew an excellent cup of coffee, you must have a brewing temperature off 200 degrees, plus or minus five degree
ASHA 777 [7]
Your equation for the maximum brewing temperature should be x = 200 + 5 because according to your word problem, the temp. can be five degrees above 200 degrees. 

x = 200 + 5 
x = 205

Your equation for the minimum brewing temperature should be x = 200 - 5 because according to your word problem, the temp. can be five degrees below 200 degrees.

x = 200 - 5
x = 195


8 0
3 years ago
A druggist needs 25 liters of a solution that is 16% iodine. She has one solution that is 12 % iodine and another that is 37 %.
GalinKa [24]

Answer:

21 liters of the 12% solution and 4 liters of the 37% solution

Step-by-step explanation:

Represent the number of liters of the first solution as x and the second as y. Now, the total liters of iodine is going to be 16% of 25 = 4 liters of iodine, and the total liters of each solution is going to be 25. Now, we can setup two equations:

0.12x+0.37y = 4

x + y = 25

Multiplying the bottom equation by 0.12, we have

0.12x + 0.12y = 3

Subtracting, we have

0.12x+0.37y=4

-

0.12x + 0.12y = 3

= 0.25y = 1

= y = 4

= x = 25 - 4 = 21

7 0
2 years ago
2. A motorcycle rider moving with initial velocity of 15.0 m/s uniformly accelerates to a speed of 30.0 m/s in a.
xenn [34]

Given :

Initial velocity , u = 15 m/s .

Final velocity , v = 30 m/s .

Distance travelled , d = 40 m .

Also , this body is uniformly accelerating .

To Find :

(a) What is the acceleration .

(b) How long does this take .

Solution :

Let , acceleration be a .

By , equation of motion :

v^2-u^2=2ad\\\\a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{30^2-15^2}{2\times 40}\\\\a=8.44\ m/s^2

Also , by equation :

v=u+at\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{30-15}{8.44}\ s\\\\t=1.78\ s

Hence , this is the required solution .

3 0
3 years ago
A manufacturer has determined that a model of its washing machine has an expected life that is Exponential with a mean of four y
krek1111 [17]

Complete question:

A manufacturer has determined that a model of its washing machine has an expected life that is Exponential with a mean of four years to failure and irrelevant board burn-in period. He wants to testthe system and complete data collection. Find the probability that one of these washing machines will have a life that ends: (Note you can find the reliability of the washing machine life)

a) After an initial four years of washing machine service

b) Before four years of washing machine service are completed

c) Not before six years of washing machine service.

Answer:

a) 0.3679

b) 0.6321

c) 0.2231

Step-by-step explanation:

Given:

Mean, u= 4

/\ = 1/u

= 1/4 = 0.25

The cummulative distribution function, will be:

For x≥0,

F(x) = 1 - e^-^0^.^2^5^X

P(x

a) After an intial four years:

P(x>4) = 1-(1-e^-^0^.^2^5^*^4^.^0)

P(x>4) = 0.3679

b) Before four years:

P(x

P(x<4) = 0.6321

c) Not before 6 years:

P(x>6) = 1-(1-e^-^0^.^2^5^*^4^.^0)

P(x>6) = 0.2231

5 0
3 years ago
What is the Lateral area of this prism ?
Mazyrski [523]

Answer:

idk let me go look at it

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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