Paulo uses an instrument called a densitometer to check that he has the correct ink colour.For this print job the acceptable range for the reading on the densitometer is 1.8 ± 10%.

What is the acceptable range for the densitometer reading?

exactly 1.8

from 0 to 3.6

from 1.0 to 2.6

from 1.62 to 1.98

from 1.8 to 1.98

Answers

Answer 1

Answer: If it is said that the range of the answer should be +/- 10% of the particular value, we have to find out the percentage of that particular value. Therefore 10% of 1.8 is,

1.8 * 10/100 = 0.18

If we add this value to the original value,
1.8+0.18 = 1.98

If we subtract this value from the original value,
1.8-0.18 = 1.62

therefore the range will be,
from 1.62 to 1.98

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Which expression is a difference of squares with a factor of 2x + 5? 4x2 + 10 4x2 – 10 4x2 + 25 4x2 – 25
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Do you add them both together or multiply or do u put an equal sign between them? what is the sum of $(-x+7)/(2x+4)$ and $(2x+5)/(2x+4)$

Answers

$(-x+7)/(2x+4)+(2x+5)/(2x+4) =(-x+7+2x+5)/(2x+4)=( x+12)/(2x+4)$

$(-x+7)/(2x+4) + (2x+5)/(2x+4)=(x+12)/(2x+4)$

The least common multiple of 3, 4, 6, and 8 is
A. 72.
B. 24.
C. 96.
D. 8.

Answers

Answer:

B. 24

Step-by-step explanation:

The least common multiple of two numbers is the smallest number

that is a multiple of all the numbers ( except 0)

Let us look at the multiples of the numbers given:

The multiples of 3,4,6 and 8 are:

3: 3,6,9,12,15,18,21,24.

4: 4,8,12,16,20,24.

6: 6,12,18,24.

8: 8,16,24.

24 is the smallest number that is a common multiple of all the numbers.

The least common multiple of 3, 4, 6, and 8 is 24.

The least common multiple of 3, 4, 6, and 8 is 24.

List the multiples out:

3: 3, 6, 9, 12, 15, 18, 21, 24
4: 4, 8, 12, 16, 20, 24
6: 6, 12, 18, 24
8: 8, 16, 24

Can someone show me how to solve this step by step?

Answers

9514 1404 393

Answer:

x = -15

Step-by-step explanation:

It appears the drawing is showing two representations for the distance LK. Of course, they both have the same value.

10 = LK = x+25

Subtracting 25 from the equation, we have ...

-15 = x

(This value of x makes KJ = (2(-15)+27) = -3, a nonsense value.)

_____

Alternate (more sensible) interpretation

If the bottom line is intended to represent LJ, then we have ...

10 +(2x+27) = (x +25) . . . . LK +KJ = LJ

x +37 = 25 . . . . subtract x

x = -12 . . . . . . . subtract 37

With this value of x, the length of KJ is 2(-12)+27 = 3, and the overall length LJ is (-12)+25 = 13. This is consistent: LK=10, KJ = 3, LJ = 13.

A greenhouse that specializes in growing vegetables used for Chinese cooking is divided into sections. The number of plants in each section depends on the number of sprinklers in that section.In a section with y sprinklers there are y(4y − 1) napa cabbage plants and (y + 5)2 bok choy plants.

Which simplified expression represents the total number of napa cabbage plants and bok choy plants in a section with y sprinklers? (5 points)

A.4y4 − 10y2 + 25
B.4y2 + 9y + 25
C.5y2 − 11y + 25
D.5y2 + 9y + 25

Answers

The right answer for the question that is being asked and shown above is that: D.5y2 + 9y + 25
Napa Cabbage = y (4y-1) = 4y^2 - y
Bok Choy = (y+5)^2 = y^2 + 10y + 25

= 4y^2 - y + y^2 + 10y + 25
= 5y^2 + 9y + 25

The simplified expression represents the total number of napa cabbage plants and bok choy plants in a section with y sprinklers is 5y^2 + 9y + 25

Answer:

Step-by-step explanation:

Took the test

Help plz
It would help me a lot

Answers

Answer:

The answer is -71.

Step-by-step explanation:

What is the original problem?

Is it -1 - (-8)?

If so, then the answer is -7 because negative + negative = positive

-1 + 8 = -7

-31 - 40 = -71

-34 - 40 = -74

Five times the sum of a number and one is 115. What is the number? Use x as your variable.

Answers

The initial equation is:
$5(x+1)=115$

Let's transform it for x:
$5x+5=115$

... distract 5:
$5x=110$

... divide both sides by 5:
$x=22$

Write the follow equation accordin the text of the task:

$5(x+1)=115$

Solve the equation:

$5(x+1)=115\n \n 5x+5=115\n \n 5x=115-5\n \n 5x=110\n \n x=(110)/(5)\n \n x=22$

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