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4 years ago

Pls help!! question in the pic

Mathematics

1 answer:

elena-s [515]4 years ago

6 0

Answer:

the answer is 26

Step-by-step explanation:

1.5 4 2 9 5.5 4

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Last Saturday, the MoviePlex theater sold 1,456 tickets. The theater sold 6 times as many regular-price tickets as it sold disco

drek231 [11]

No it is actually 1456•6

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3 years ago

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In how many ways can a subcommittee of 6 students be chosen from a committee which consists of 10 senior members and 12 junior m

givi [52]

Answer:

The number of ways is 13860 ways

Step-by-step explanation:

Given

Senior Members = 10

Junior Members = 12

Required

Number of ways of selecting 6 students students

The question lay emphasis on the keyword selection; this implies combination

From the question, we understand that

4 students are to be selected from senior members while 2 from junior members;

The number of ways is calculated as thus;

Ways = Ways of Selecting Senior Members * Ways of Selecting Junior Members

$Ways = ^{10}C_4 * ^{12}C2$

$Ways = \frac{10!}{(10-4)!4!)} * \frac{12!}{(12-2)!2!)}$

$Ways = \frac{10!}{(6)!4!)} * \frac{12!}{(10)!2!)}$

$Ways = \frac{10 * 9 * 8 * 7 *6!}{(6! * 4*3*2*1)} * \frac{12*11*10!}{(10!*2*1)}$

$Ways = \frac{10 * 9 * 8 * 7}{4*3*2*1} * \frac{12*11}{2*1}$

$Ways = \frac{5040}{24} * \frac{132}{2}$

$Ways = 210 * 66$

$Ways = 13860$

Hence, the number of ways is 13860 ways

7 0

3 years ago

A new machine tool is brought into a production line to help speed production. You take 200 seconds to produce the first widget.

Artemon [7]

Answer:

b = - 0.432

Step-by-step explanation:

It takes 200 seconds to produce the first widget. And by the 400th widget, it takes only 15 seconds.

Now, the formula that gives the time to make the nth widget is given by

$T_{n} = T_{1} (n)^{b}$ and we have to evaluate the constant b from the above-given conditions.

So, $15 = 200(400)^{b}$

⇒ $400^{b} = 0.075$

Taking log on both sides

b log (400) = log (0.075)

⇒ b = - 0.432 (Answer)

3 0

3 years ago

Convert 1AA from hexadecimal to decimal.

ElenaW [278]

1AA = 426

What an odd class...

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3 years ago

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a section in a stained glass window is shaped like a trapezoid. The top base is 4 centimeters and the bottom base is 2.5 centime

dem82 [27]

Hello, so the equation for the area of a trapezoid is A = (a+b)*(h/2)

In which, a is one of the bases, b is the other base, and h is the height. A is the Area. If you wanna solve for height, rearrange the equation to what h equals.

First divide (a+b) from both sides
A/(a+b) = h/2

Now multiply 2 on both sides

2(A/(a+b)) = h

Now you have it rearranged equal to just h. Plug in the values now.

2(3.9/(4+2.5)) = h

2(3.9/(6.5)) = h

2(.6) = h

1.2 = h

The section is 1.2 centimeters tall.

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3 years ago