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Anna35 [415]
3 years ago
6

Uh what’s 9 + 10 + 9 - 10

Mathematics
2 answers:
julia-pushkina [17]3 years ago
8 0

Answer:

18

Step-by-step explanation:

alexandr1967 [171]3 years ago
3 0

Answer:

18

Step-by-step explanation:

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On the number line below, P represents a number. What is the value of the opposite of that number? A number line from negative 4
Arada [10]

Answer:

-1 and 2/4

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Help please, 10 points ​
damaskus [11]

Answer:

<u>12 feet</u>

Step-by-step explanation:

<u>Finding the missing side</u>

  • (?)² + (35)² = (37)²
  • ?² + 1225 = 1369
  • ?² = 144
  • ? = √144
  • ? = <u>12 feet</u>
7 0
2 years ago
Anyone ...? <br> asap.....
My name is Ann [436]

Answer:

The last one 8512

Step-by-step explanation:

5×10÷5+2168

4 0
3 years ago
A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

4 0
3 years ago
PLZ HELPPP
Anna [14]

Answer:

4ft

Step-by-step explanation:

500=pir^2h

r^2=500/(10*pi)

r=3.989ft

4 0
2 years ago
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