3 years ago

PLEASE HURRY

Mathematics

2 answers:

snow_lady [41]3 years ago

7 0

Answer:

x = 3 ×10^2

Step-by-step explanation:

To determine how many times larger the culture sample was compared to a week earlier

We divide the values of the present sample to the past sample size

3.9 x 10^5/ 1.3 ×10^2

3.9/1.3 x10^5-3 = 3 ×10^2

Lubov Fominskaja [6]3 years ago

3 0

Answer-

the first box is 3 the second is 10 to the third then the last = 3,000

Step-by-step explanation:

just did it

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Find the slope of the line that passes through the points (2.1) and (-1.-1).

sp2606 [1]

Answer: The slope is $\frac{2}{3}$

Step-by-step explanation:

The slope can be calculated with the following formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Then, knowing that the line passes through the points (2,1) and (-1,-1), we can substitute the coordinates into the formula.

In this case:

$y_2=-1\\y_1=1\\x_2=-1\\x_1=2$

Therefore, the slope of the line that passes through the points (2,1) and (-1,-1) is:

$m=\frac{-1-1}{-1-2}\\\\m=\frac{-2}{-3}\\\\m=\frac{2}{3}$

6 0

3 years ago

What is 0.003 is 1-10 of

gulaghasi [49]

0.003 of 1-10 of is 0.03

4 0

3 years ago

How do i solve these ?

dybincka [34]

Here are solutions and answers for these problems

7 0

3 years ago

PLS HELP DUE SOON WILL MARK BRAINLIEST

Eva8 [605]

Answer:

you have 9 yes and 3 no. so 3/9=1/3=.333

6 0

3 years ago

3x2 = 81<br> b. (x - 1)(x + 1)-9 = 5x<br> C. X - 9x + 10 = 32<br> d. 6x(x - 9) = 29

irakobra [83]

Answer:

a. 3x^2 = 81

x^2 = 27

$x = 3\sqrt{3} or -3\sqrt{3}$

Step-by-step explanation:

6 0

3 years ago