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3 years ago

What is the determinant of the coefficient matrix of the system 0x+0y-0z=3 0x+0y+0z=-1 0x+0y+0z=18

Mathematics

1 answer:

makvit [3.9K]3 years ago

3 0

Answer:

Zero.

Step-by-step explanation:

The determinant of the coefficient matrix of the system is zero, since every coefficient is equal to zero.

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Stells [14]

Answer:6 36 2.449

Step-by-step explanation: 36 square

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3 years ago

Multiply.<br><br> −2(8) <br><br> plz help me

Luda [366]

8 x2 is 16; we have a negative sign, so that makes our answer -16

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3 years ago

Read 2 more answers

What is the length of the hypotenuse, c? Round your answer to the nearest hundredth.

Afina-wow [57]

Answer:

Step-by-step explanation:

By using the Pythagorean theorem:

b^2+3^2=5^2
b^2+9=25

b=sqrt (25-9)

b=sqrt(16)

b=4

=> 4^2+7^2=c^2
16+49=c^2
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2 years ago

What are the leading coefficient, constant term and degree, if any, of the algebraic expression

nasty-shy [4]

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3 years ago

A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor

Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5 hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

Z = - 1.28 (Using Standard Normal distribution)

Now,

$\\Z=\frac{X-\mu}{\sigma}$

X = μ + ( σ × Z )

μ = X - ( σ × Z )

on substituting the respective values, we get

μ = 15.9 - 0.5 × (-1.28)

μ = 16.5

Hence, the correct answer is option (D) 16.5

8 0

2 years ago