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lara31 [8.8K]
3 years ago
15

I NEED HELP PLEASE!!!!!

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:A sample has a density of 1.37 * 10^5 CFU/mL. Whatsample volume should yield a countable plate? Which two dilutiontube could be used to produce this sample volume? How?

Step-by-step explanation:A sample has a density of 7.9 * 10^9 CFU/mL. What samplevolume should yield a countable plate? Which two dilution tubecould be used to produce this sample volume? How?

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Abraham told his friends to try and guess his number. He said that when you take his number and multiply it by 4 and add 12 you
lisov135 [29]

Answer:

C) 22

Step-by-step explanation:

I have set up an equation based off of what Abraham said.

(n*4)+12=100\\\\4n+12=100\\\\4n+12-12=100-12\\\\4n=88\\\\\frac{4n=88}{4}\\\\\boxed{n=22}

The number should be 22.

Hope this helps.

Hope this helps.

8 0
3 years ago
Read 2 more answers
Complete the stem-and-leaf plot for the list of test grades.73, 42, 67, 78, 99, 84, 91, 82, 86, 94
evablogger [386]
Stem/leaf
4/2
5/
6/7
7/3,8
8/2,4,6
9/1,4
4 0
2 years ago
Write the slope-intercept form of the equation of each line given the slope and y-intercept.
saul85 [17]

Answer:

4b. −6x + y = −4

4a. 7x + 4y = −12

3b. y = ½x + 3

3a. y = −6x + 5

2b. y + 2 = −⅔(x + 3)

2a. y - 3 = ⅘(x - 5)

1b. y = -x + 5

1a. y = 5x - 3

Step-by-step explanation:

4.

Plug the coordinates into the Slope-Intercept Formula first, then convert to Standard Form [Ax + By = C]:

b.

2 = 6[1] + b

6

−4 = b

y = 6x - 4

-6x - 6x

_________

−6x + y = −4 >> Standard Equation

a.

4 = −7⁄4[-4] + b

7

−3 = b

y = −7⁄4x - 3

+7⁄4x +7⁄4x

____________

7⁄4x + y = −3 [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]

4[7⁄4x + y = −3]

7x + 4y = −12 >> Standard Equation

__________________________________________________________

3.

Plug both coordinates into the Slope-Intercept Formula:

b.

5 = ½[4] + b

2

3 = b

y = ½x + 3 >> EXACT SAME EQUATION

a.

−1 = −6[1] + b

−6

5 = b

y = −6x + 5

* Parallel lines have SIMILAR <em>RATE OF CHANGES</em> [<em>SLOPES</em>].

__________________________________________________________

2.

b. y + 2 = −⅔(x + 3)

a. y - 3 = ⅘(x - 5)

According to the <em>Point-Slope Formula</em>, <em>y - y₁ = m(x - x₁)</em>, all the negative symbols give the OPPOSITE TERMS OF WHAT THEY REALLY ARE, so be EXTREMELY CAREFUL inserting the coordinates into the formula with their CORRECT SIGNS.

__________________________________________________________

1.

b. y = -x + 5

a. y = 5x - 3

Just write out the Slope-Intercept Formula as it is given to you.

I am joyous to assist you anytime.

3 0
3 years ago
Angle CMW and angle WML together form angle CML. angle CMW is a right angle. describe angle CML
SashulF [63]
CML can be found by adding the measures of CMW and WML.

Hope this helps :)
4 0
3 years ago
What is the scale factor?<br>NEED HELP ASAP!​
Leno4ka [110]

Answer:

scale factor = 2

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original

C'D' = 6 and CD = 3 then

scale factor = \frac{6}{3} = 2

7 0
3 years ago
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