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Over [174]
3 years ago
7

HELPP FAST I NEED 2 ANSWERS WILL GIVE BRAINLIEST ANSWER AND THANK U FOR & DAYS ANSWER THEM ALL CORRECTLY!!

Mathematics
2 answers:
Damm [24]3 years ago
7 0
The answers are:
1. B
2. B
3. A
4. D
Daniel [21]3 years ago
5 0
3) MQ & KO
4) KJ & LM
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I need some urgent help, please.
frutty [35]

Answer: It's proportional

Step-by-step explanation: For every 0.5 Storage space (GB), you can fit 100 songs.

5 0
3 years ago
Read 2 more answers
Need help with this math​
sveta [45]

This is an arithmetic sequence, as there is a common difference of 21 between terms.

By using the formula, the 18th term of the sequence is

= 1st term + (18 - 1)(21)

= 15 + 17 * 21

= 372

3 0
3 years ago
7 freshmen, 8 sophomores, 8 juniors, and 10 seniors are eligible to be on a committee.
timurjin [86]

Answer:

There are 1,037,158,320  ways to choose a committee of 18 among 33 students.

There are 4,939,200 ways to choose 5 freshmen from 7, 6 sophomores from 8, 4 juniors from 8, and 3 seniors from 10.

Step-by-step explanation:

33!/18!15! = 1,037,158,320

7!/5!2! * 8!/6!2! * 8!/4!4! * 10!/7!3!

= 7*3 * 7*4 * 7*5*2 * 10*4*3 = 4,939,200

5 0
3 years ago
What is the volume of the solid whose cross- sections are circular disks perpendicular to the x-axis and with diameters on the r
12345 [234]

Answer:

the volume of the solid is \frac{\pi }{120}

Step-by-step explanation:

Given the data in the question;

y = x and y = x²

so

x = x²

x - x² = 0

Radius will be; r = ( x - x² )/2

Area of the circular disk πr² = π[ ( x - x² )/2 ]²

A = \frac{\pi }{4}( x - x² )²

So, our volume will be;

V = ₀∫¹ A(x) dx

we substitute

= ₀∫¹ \frac{\pi }{4}( x - x² )² dx        

{ lets expand; ( x - x² )² = x(x-x²) -x²(x-x²) = x² - x³ - x³ + x⁴ = x² + x⁴ - 2x³  }

so we have;

=  ₀∫¹ \frac{\pi }{4}( x² + x⁴ - 2x³ ) dx  

= \frac{\pi }{4} [ \frac{x^3}{3} + \frac{x^5}{5} - \frac{2}{4} x^4 ]^1_0

= \frac{\pi }{4}[ \frac{1}{3} + \frac{1}{5} - \frac{2}{4} ]

= \frac{\pi }{4}[ \frac{1}{30} ]

V = \frac{\pi }{120}

Therefore, the volume of the solid is \frac{\pi }{120}

6 0
3 years ago
We’ve built a machine that follows these instructions:
DaniilM [7]
Hm
10 + 4 x 2 - 3
=10 + 8 - 3
=18 - 3
=15
5 0
3 years ago
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