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3 years ago

Simplify the following expression and show your work in details please .

Mathematics

2 answers:

wel3 years ago

6 0

Answer:

9-2b

Step-by-step explanation:

Set up equation:

$9 - 8b + 6b$

Add like terms

$9 - 2b$

timurjin [86]3 years ago

4 0

9-8b+6b
You can combine -8b and 6b since it has the same variable.
That leaves
9-2b
Hope that helped!

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The formula for glue says to add 45mL of hardener to each container of resin. How much hardener should be added to 14 containers

Soloha48 [4]

45*14 = 630
630ml of hardener should be added to 14 bottles of resin

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3 years ago

An object is traveling at a steady speed of 10 1/5 mi/h. How long will it take the object to travel 1 4/5?

professor190 [17]

The object needs 10.58 minutes to travel 1 4/5 if the object is traveling at a steady speed of 10 1/5 mi/h.

<h3>What is the distance?</h3>

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

It is given that:

An object is traveling at a steady speed of 10 1/5 mi/h.

u = 10 1/5 min/h

u = 51/5 min/h

As we know, the speed-distance relationship:

time = distance/speed

distance = 1 4/5 = 9/5

time = (9/5)/(51/5)

time = 9/51 hours

time = (9/51)60

time = 10.58 minutes

Thus, the object needs 10.58 minutes to travel 1 4/5 if the object is traveling at a steady speed of 10 1/5 mi/h.

Learn more about the distance here:

brainly.com/question/26711747

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3 0

2 years ago

Assume that a procedure yields a binomial distribution with a trial repeated n = 5 times. Use some form of technology to find th

Digiron [165]

Answer:

$P(X = 0) = 0.0263$

$P(X = 1) = 0.1407$

$P(X = 2) = 0.3012$

$P(X = 3) = 0.3224$

$P(X = 4) = 0.1725$

$P(X = 5) = 0.0369$

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 5, p = 0.517$

Distribution

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{5,0}.(0.517)^{0}.(0.483)^{5} = 0.0263$

$P(X = 1) = C_{5,1}.(0.517)^{1}.(0.483)^{4} = 0.1407$

$P(X = 2) = C_{5,2}.(0.517)^{2}.(0.483)^{3} = 0.3012$

$P(X = 3) = C_{5,3}.(0.517)^{3}.(0.483)^{2} = 0.3224$

$P(X = 4) = C_{5,4}.(0.517)^{4}.(0.483)^{1} = 0.1725$

$P(X = 5) = C_{5,5}.(0.517)^{5}.(0.483)^{0} = 0.0369$

6 0

4 years ago

Divide 6.72 by 0.041 and round to the nearest hundredth

ss7ja [257]

Answer: 163.90

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find a positive number that is 42 less than its square.

Kruka [31]

It would be 49 bc the square root of 49 is 7 49-7=42

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3 years ago