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4 years ago

The graph shows a bacteria population as a function of the number of days since an antibiotic was introduced.

Mathematics

2 answers:

Mazyrski [523]4 years ago

8 0

14 bacteria's were showed on the first day

Evgen [1.6K]4 years ago

5 0

Answer:

Just took the test! answer was 14,000,000

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Solve by elimination x-5y=35 and 3x-6y=51

IrinaVladis [17]

Answer: x=5 y=-6

(5,-6)

Step-by-step explanation:

Solve by elimination

$\begin{bmatrix}x-5y=35\\ 3x-6y=51\end{bmatrix}$

multiply x-5y=35 by 3

= 3x-15y=105

$\begin{bmatrix}3x-15y=105\\ 3x-6y=51\end{bmatrix}$

$3x-6y=51$

- $\underline{3x-15y=105}$

$9y=-54$

divide 9 on both sides

y= -6

Now solve for x

you must plug in -6 for y in either equations

i plugged in -6 for y in 3x-15y=105

$3x-15\left(-6\right)=105$

$3x+15\cdot \:6=105$

$15\cdot \:6=90$

$3x+90=105$

subtract 90 on both sides

$3x=15$

$\frac{3x}{3}=\frac{15}{3}$

$x=5$

Please mark brainliest

3 0

4 years ago

Read 2 more answers

Using a dollar even though it has a tear is an example of<br> which characteristic of money?*

Andreyy89

Answer:

Durability

Step-by-step explanation:

Durability in money is when objects used as money can withstand being worn out or torn. In this case, the bill is still used though it has a tear therefore it's an example of durability.

Hope it helps :)

4 0

3 years ago

What is the value of x to the nearest tenth?

Alex_Xolod [135]

Hi there!

In order to solve for x, we'll need to use a trigonometry ratio. In this case, we'll use tangent, which is opposite over adjacent.

Here is our equation:
tan(37)/1 = x/2.1

Cross-Multiply:
x = tan(37) * 2.1

Solve:
x = 1.8 (rounded to the nearest tenth)

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!

7 0

4 years ago

Er at the correct

anygoal [31]

Answer:

A, B, and B.

Step-by-step explanation:

-2

-5

Right on the number line, -2 > -5

5 0

4 years ago