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Anon25 [30]
3 years ago
14

The number of bacteria in a Petri dish increases by 19% every hour. If there were initially 300 bacteria placed in the Petri dis

h, write a function that can be used to determine the number of bacteria in the Petri dish in exactly hours.
Mathematics
1 answer:
victus00 [196]3 years ago
3 0
X= # of hours
f(x)=1.19x+300
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6:
schepotkina [342]

Answer:

$52.5

Step-by-step explanation:

Whenever there is a sales tax of a certain percentage, you need to first convert that percentage to decimal. 5%=0.05, and multiplying this by the overall price gives 0.05*50=$2.5. Adding this to the initial price of $50, you get 50+2.5=$52.5. Hope this helps!

4 0
3 years ago
Read 2 more answers
The sum of the angle measures of the polygon is 540°. Write and solve an equation to find the value of 2.
kifflom [539]

Answer:

x = 29°

The angles are  137° , 116° , 96° , 44° and 147°

Step-by-step explanation:

The sum of the angles of the polygon is given as 540°. The angles are given as 5x – 8°,  4x° , 96° , 44°, 5x + 2. Therefore, the value of x can be found as follows

5x – 8° + 4x°  + 96° + 44° + 5x + 2° = 540°

collect like terms

5x + 4x + 5x - 8 + 96 + 44 + 2 = 540°

14x + 134 = 540°

14x = 540 - 134

14x = 406

divide both sides by 14

x = 406/14

x = 29°

Therefore, the angles are as follows

29 × 5 - 8 = 137°

29 × 4 = 116°

96°

44°

5 × 29 + 2 = 147°

7 0
3 years ago
Andrew is creating a rectangular dog run in his back yard. The length of the dog run is 18 feet. The perimeter of the dog run mu
ale4655 [162]

Answer: 3\leq x \leq 18

Step-by-step explanation:

Given, the length of the rectangular dog run is 18 feet.

Formula: Perimeter = 2 ( length + width)

Let width be x.

Then, Perimeter = 2 (18 + x ) feet

The perimeter of the dog run must be at least 42 feet and no more than 72 feet.

That is  

42\leq 2 (x+18)\leq 72

Divide inequality by 2, we get

21\leq 18+x\leq 36

Subtract 18 from each side, we get

3\leq x \leq 18

Required inequality : 3\leq x \leq 18

6 0
3 years ago
Help me and I'll do the same :)
Ilya [14]
1 & 4 & 6 are the answers
8 0
3 years ago
Otis constructed a rectangle with a compass and straightedge.
trapecia [35]
<span>B. square
</span><span>C. Draw arcs on the circle with the compass set at r units.

</span>
6 0
4 years ago
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