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2 years ago

Please help with this question! (Brainliest)

Mathematics

2 answers:

insens350 [35]2 years ago

6 0

Answer:

Step-by-step explanation:

$- 9 \: \: . \: \: (5j + k) \\ - 9(5j) -9(k) \\ - 45j - 9k \\$

Korvikt [17]2 years ago

3 0

Answer: -45j -9k

Step-by-step explanation:

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BabaBlast [244]

Answer:

Problem 1:

x=12, x=3, x=6

Problem 2:

18*3=54

54/18=3

Problem 3:

Part A: 36/4.5=? 4.5*x=36

Part B: 8

Step-by-step explanation:

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3 years ago

A hotel manager is adding a tile border around the hotel's rectangular pool. Let p represent the width of the pool, in feet. T

Ronch [10]

Answer:

A and F

Step-by-step explanation:

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3 years ago

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I will give you brainliest to whoever helps me answer this. Please hurry

laila [671]

Y= 13.18x + 36 Blank 1: 13.18 & Blank 2: 36

6 0

3 years ago

Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with mea

Anika [276]

Answer:

About 3 years Speedy Jet printers be guaranteed.

Step-by-step explanation:

Given : Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with

mean $\mu = 4$ and standard deviation $\sigma = 0.78$

If the company wishes to replace no more than 10% of the printers.

To find : How long should Speedy Jet printers be guaranteed ?

Solution :

Using Z- table,

Z value corresponding to 10% or 0.10 = -1.28.

Applying z-score formula,

$z=\frac{x-\mu}{\sigma}$

The value of x is given by,

$x=(z\times \sigma)+\mu$

Substitute the values,

$x=(-1.28\times 0.78)+4$

$x=-0.9984+4$

$x=3.0016$

So, approx 3 years.

Therefore, About 3 years Speedy Jet printers be guaranteed.

8 0

3 years ago

PLEASE HELP!!

baherus [9]

Answer:

How tall is he semicirlce?

Step-by-step explanation:

Then I can solve

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2 years ago