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3 years ago

Subtract the following polynomials

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

4 0

Answer:

3.1x x+12.04zx-1.2z.....

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A bedroom wall is 32 m wide and 54 m long. What is the total area of the wall? A can of paint will cover 12 sq. meter. How many

Alenkasestr [34]

Answer:

288

Step-by-step explanation:

Area of the wall = width x length = 32 x 54 = 1728 sq m

The number of cans for 1 coat = 1728/12 = 144 cans

The number of cans for 2 coats = 144 x 2 = 288 cans

7 0

3 years ago

The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past

galina1969 [7]

Complete Question

The complete question is shown on the uploaded image

Answer:

1 ) The correct option B

2) The correct option is C

3) The correct option is C

4) The correct option is C

Step-by-step explanation:

From the question we are told that

The proportion that own a cell phone is $p = 0.90$

The sample size is n = 15

Generally the appropriate distribution for X is mathematically represented as

$X \ is \ B( n , p )$

$X \ is \ B( 15 , 0.90 )$

Generally the number students that own a cell phone in a simple random sample of 15 students is mathematically represented as

$\mu = n * p$

$\mu = 15 * 0.90$

$\mu = 13.5$

Generally the standard deviation of the number of students who own a cell phone in a simple random sample of 15 students is mathematically represented as

$\sigma = \sqrt{ n * p * q }$

Where q is mathematically evaluated as

$q = 1- p$

$q = 1- 0.90$

$q = 0.10$

$\sigma = \sqrt{ 15 * 0.90 * 0.10 }$

$\sigma = 1.16$

Generally the probability that all students in a simple random sample of 15 students own a cell phone is mathematically represented as

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * p^{15} * q^{15 - 15}$

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * (0.90)^{15} * (0.10 )^{15 - 15}$

From the combination calculator is $\left 15} \atop {}} \right.C_{15} = 1$

$P(X = 15) = 1 * 0.205891 * 1$

$P(X = 15) = 0.206$

7 0

3 years ago

Solve the inequality: 12p + 7 > 139

8_murik_8 [283]

If you would like to solve the inequality 12 * p + 7 > 139, you can do this using the following steps:

12 * p + 7 > 139
12 * p > 139 - 7
12 * p > 132 /12
p > 132/12
p > 11

The correct result would be p > 11.

4 0

3 years ago

Read 2 more answers

HELP PLEASE I NEED IT NOWWW.

Elina [12.6K]

Answer:

C.) 5

Step-by-step explanation:

If beth were 5 ( Making Julio 3)

Gerald is 10 and Debra is 20

10+20+5+3 = 38

I hope this helps you :)

3 0

3 years ago

3k - 2c + 8<br> use k = 7 and c = 4

Inga [223]

Answer:

Step-by-step explanation:

3 (7) - 2(4) + 8

21 - 8 + 8

13 + 8

6 0

3 years ago

Read 2 more answers