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stich3 [128]
3 years ago
7

Calculate the circumference of a circle whose radius is 7.2 Cm (Idek I just woke up lol)

Mathematics
1 answer:
lesya692 [45]3 years ago
7 0
I believe the answer would be 45.24 cm
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Select the postulate of equality or inequality that is illustrated.
DaniilM [7]

Answer: Transitive Postulate of Inequality (last option)

Explanation:

Let's say we have a vacation where we go from City A, to City B, then to City C. We can use the notation A \to B \to C. If all we cared about was the first and last cities, then we basically say A \to C taking a shortcut so to speak.

This analogy is useful to describe the transitive property.

The equality version is where if we had a = b and b = c, then a = c.

The inequality version is where if we had a < b and b < c, then a < c. In this case, c = 2.

In a sense, its like linking together metal chains. A leads to B which leads to C. So we can just jump from A to C.

It might help to draw out a number line and pick values for a and b like a = 0 and b = 1. That way you can see how a < b, b < c and a < c all tie together.

4 0
4 years ago
The circumference of circle A is four times the circumference of circle B. Which statement about the areas of the circles is tru
Brums [2.3K]

Answer:

The area of circle A is 16 times the area of circle B.

Step-by-step explanation:

he area of circle A is three times the area of circle B.

It depends on the value of π.

It depends on the actual diameters of the circles.

The area of circle A is 16 times the area of circle

the circumference of a circle = 2 x pi x r

Let imagine that the radius of B is 2cm

then the circumference of B = 2 x 2 x pi = 4pi

If the circumference of a is 4 times that of B, it means the circumference is 16 and the radius is 8

Area of a circle is pi x r^2

Area of B = pi x 2^2 = 4pi

Area of A = pi x 8^2 = 64pi

64/4 = 16 pi

3 0
3 years ago
Please help me!!! It's due in a hour and I have a lot on my plate!!
Sergio039 [100]

Answer:

1. +35

2. -270 ft.

3. -$12

4. +19°

5. -15 ft

6. +$25

hope this helps :)

5 0
3 years ago
Read 2 more answers
Cooling towers are used to remove or expel heat from a process. A cooling tower's walls are modeled by where the measurements ar
djverab [1.8K]

The width of the cooling tower is 36 meters.

<h3>What is a cooling tower?</h3>

A cooling tower is a vent that is built for the purpose of releasing waste heat back to the atmosphere.

Now we can model the system using;  x²/324 - (y² - 90)²/1600. Thus, the width can be obtained from;

2 × ✓324

= 2 × 18

= 36 meters

Learn more about cooling tower:brainly.com/question/26654522

#SPJ1

Missing parts;

Cooling towers are used to remove or expel heat from a process. A cooling tower's walls are modeled by x squared over 324 minus quantity y minus 90 end quantity squared over 1600 equals 1 comma where the measurements are in meters. What is the width of the cooling tower at the base of the structure? Round your answer to the nearest whole number.

36 meters

48 meters

80 meters

89 meters

7 0
2 years ago
What do you divide (-2/3) with to get 3/10
podryga [215]

Answer:

the equation forms like this

-2/3 divide x =3/10

Solve for  

x

by cross multiplying.

Exact Form:  

x=− 20/9

Decimal Form:

x=−2.¯2

Mixed Number Form:

x=−2  2/9

4 0
3 years ago
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