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3 years ago

Simplify the expression: 15w-6w+14w^2

Mathematics

2 answers:

yan [13]3 years ago

6 0

Add together all like terms (15w,6w)
15w-6w= 9w
So your answer would be
9w+14w²

Darina [25.2K]3 years ago

5 0

=14w2+9w hope this helps

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Delta Airlines quotes a flight time of 2 hours for its flights from Cincinnati to Tampa, meaning that an on-time flight would ar

ddd [48]

Answer:

a) Attached

b) P=0.60

c) P=0.80

d) The expected flight time is E(t)=122.5

Step-by-step explanation:

The distribution is uniform between 1 hour and 50 minutes (110 min) and 135 min.

The height of the probability function will be:

$h=\frac{1}{Max-Min}=\frac{1}{135-110} =\frac{1}{25}$

Then the probability distribution can be defined as:

$f(t)=\frac{1}{25}=0.04 \,\,\,\,\\\\t\in[110,135]$

b) No more than 5 minutes late means the flight time is 125 or less.

The probability of having a flight time of 125 or less is P=0.60:

$F(T$

c) More than 10 minutes late means 130 minutes or more

The probability of having a flight time of 130 or more is P=0.80:

$F(T>t)=1-0.04(t-110)\\\\F(T>130)=1-0.04*(130-110)=1-0.04*20=1-0.8=0.2$

d) The expected flight time is E(t)=122.5

$E(t)=\frac{1}{2}(max+min)= \frac{1}{2}(135+110)=\frac{1}{2}*245=122.5$

6 0

3 years ago

Expression A: (2k + 8) + (5k + 10)

Dmitriy789 [7]

k = 3

Expression A:

$(2k + 8) + (5k + 10) = 2k + 8 + 5k + 10 = 7k + 18 = 7*3 + 18 = 21 + 18 = 39$

Expression B:

$76 + 18= 94$

5 0

3 years ago

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Sergio039 [100]

Answer:

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Step-by-step explanation:

Step 1;

Write expression

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$\frac{1}{4^{2} .7^{2} }$

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$\frac{1}{(28)^{2} }$

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3 years ago

In triangle ABC shown find BC.

Sonja [21]

Answer:

BC is just 3d+7??

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

2 angles measure 40 degrees each, what does the third angle measure? what type of triangle is it?

zimovet [89]

Answer:

Part a): 100 degrees

Part b): Isosceles Triangle

Step-by-step explanation:

Part a): Since the angle measures of all triangles add up to 180 degrees and since the other two angles are 40 degrees, which add up to 80, we can use subtraction to find the answer.

180 - 80 = 100

Part b): Since only two of the three angles in this triangle have the same measure, we can find that it is an isosceles triangle, with base angles measuring 40 degrees, and the vertex angle being 100 degrees.

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3 years ago