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3 years ago

How many terms are in the expression 3x^2y^4z-6xy-3z(5x^2)

1 answer:

6 0

I would say 3 because terms are separated by a plus or minus sign and there are 2 subtraction signs separating 3 expressions.

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Find the weight of the cast iron shape shown below at 0.26 pounds per cubic inch. (round to the nearest pound). The height of th

weqwewe [10]

Answer:

<u>640 pounds </u>

Step-by-step explanation:

The rest of the question is the attached figure

So, the total volume = V(cylinder ) + V(cone)

The volume of cylinder = π r² h

The volume of cone = π r² h/3

Both of the cylinder and the cone have the same diameter = 14 inches

So, the radius = 14/2 = 7 inches

The height of the cylinder is 13 inches and the height of the cone is 9 inches.

So, The volume of cylinder = π r² h = π * 7² * 13 = 2,001.2 in³

And The volume of cone = π r² h/3 = π * 7² * 9/3 = 461.8 in³

So, the total volume = 2,001.2 + 461.8 = 2,463 in³

So, the total weight = 0.26 pounds per cubic inch times the total volume

= 0.26 * 2463 = 640.38 pounds

= <u>640 pounds (to the nearest pound)</u>

6 0

3 years ago

HELP PLEASE‼️‼️‼️ DUE TODAY ANSWER QUESTIONS 8-19 SHOW WORKKKKKK

Alecsey [184]

Answer:

in which class are

Step-by-step explanation:

tell in in this number 9684574163

3 0

3 years ago

1. *

julsineya [31]

Answer:

Her multiplication

Step-by-step explanation:

Not really an aexplanation

8 0

3 years ago

Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe an

elena-s [515]

Answer and Explanation:

Number of classes = 8

Highest value =2300

Lowest value = 1250

Class width= highest value – lowest value / number of classes

= 2300 – 1250/8

= 131.25 = 132

So, we can write class as 1250+132=1382

Class frequency

1250-1382 2

1382-1514 3

1514-1646 6

1646-1778 2

1778-1910 3

1910-2042 2

2042-2174 1

2174-2306 1

8 0

3 years ago

To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in

lukranit [14]

Answer: $\dfrac{26}{27}$

Step-by-step explanation:

Given : To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in appearance.

Proportion of success : $p=\dfrac{6}{9}=\dfrac{2}{3}$

Sample size taken by customs oﬃcial : n= 3

Let x be a binomial variable that represents the tablets in the bottle.

Using Binomial probability formula :-

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

The probability that the traveler will be arrested for illegal possession of narcotics = $P(x\geq1)=1-P(x=0)$

$1-^3C_0(\dfrac{2}{3})^0(1-\dfrac{2}{3})^3\\\\=1-(1)(1)(\dfrac{1}{3})^3\ [\becuase ^nC_0=1]\\\\=1-\dfrac{1}{27}=\dfrac{26}{27}$

Hence, the probability that the traveler will be arrested for illegal possession of narcotics = $\dfrac{26}{27}$

8 0

3 years ago