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3 years ago

Graph the inequality x 2.

Mathematics

2 answers:

Leni [432]3 years ago

8 0

Answer:

2 CLOSED CIRCLE--------->

Step-by-step explanation:

closed circle on two and go the right

TEA [102]3 years ago

4 0

Answer:

--|--|--*--|--|--|--|--|--|--|--|

0 1 2 3 4 5 6 7 8 9 10

Step-by-step explanation:

you would put a closed dot on 2 and make a line going right

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A population of bacteria is 8500 on Day 1, 9350 on Day 2, and 10285 on Day 3.

11111nata11111 [884]

Answer:

The population on 30th day will be 134836.

Step-by-step explanation:

This is a case of exponential growth. The general form of exponential function is,

$y=ab^x$

where, a and b are constants.

The data points from the question are $(1,8500),(2,9350),(3,10285)$

Putting the values in the function,

for $x=1, y=8500$

$8500=ab$ ----------1

for $x=2, y=9350$

$9350=ab^2$ ------2

Dividing equation 2 by 1,

$\Rightarrow \dfrac{ab^2}{ab}=\dfrac{9350}{8500}=1.1$

$\Rightarrow b=1.1$

Putting the value of b in equation 1,

$\Rightarrow a=\dfrac{8500}{1.1}=7727.27$

Now the function becomes,

$y=7727.27(1.1)^x$

Putting x=30, we get

$y=7727.27(1.1)^{30}=134836.2\approx 134836$

4 0

3 years ago

Read 2 more answers

I need help with 7th grade math please 45 points need help ASAP + brainleist

igor_vitrenko [27]

Answer:

Area = 601.8760801 ft^2

Step-by-step explanation:

Area of Rectangle: Area = Length* Height

Area of a Semi-Circle = π*r^2 /2

Area of Rectangle: Area = 14 * 21 = 294 ft^2

Area of a Semi-Circle = π * 14^2 / 2 = π * 196/2 = π * 98 ft^2

Add the Two Area: 294 ft^2 + 98π ft^2 = 601.8760801 ft^2

3 0

2 years ago

Read 2 more answers

How far will a train travel in 5 hours if it travels at 80 miles per hour?

Lunna [17]

Answer:

C. 400 miles

Step-by-step explanation:

In each hour, it travels 80 miles. (That is the meaning of "80 miles per hour.") So you can add up the distances over a period of 5 hours:

80 miles + 80 miles + 80 miles + 80 miles + 80 miles

After the first sum (80+80=160), you can see what the correct answer will be. Continuing, you find the sum to be ...

= 400 miles

___

Multiplication was invented to make repeated addition easier.

5 × 80 miles = 400 miles

_____

Strictly speaking, you are multiplying numbers with units here:

(5 h) × (80 mi/h) = 400 mi·h/h = 400 mi . . . . . . the units h/h cancel

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3 years ago

The triangular region shows the number of possible ounces of plantinum, x, and the number of possible ounces of silver ,y, a jew

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Answer:

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3 years ago

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2 years ago