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serious [3.7K]
3 years ago
9

Can someone please help me?

Mathematics
1 answer:
KonstantinChe [14]3 years ago
5 0

Negative Integers are :

  • Less than zero
  • To the left of zero on a number line.
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The Petri dish shown has no lid. What is the surface area of the outside of the Petri dish? Round to the nearest tenth. A cylind
Bess [88]

Answer:

12566.4 mm²

Step-by-step explanation:

The Petri dish shown has no lid. What is the surface area of the outside of the Petri dish? Round to the nearest tenth. A cylindrical-shaped Petri dish with a radius of 50 millimeters and a height of 15 millimeters.

TSA = Total Surface Area

CSA = Curved Surface Area

TSA of open cylinder = CSA of cylinder + area of base or top

= 2πrh + πr²

= πr(2h + r)

From the above question:

r = 50mm

h = 15mm

Hence,

= π × 50 (2 × 15 + 50)

= π × 50 (30 + 50)

= π × 50(80)

= π × 4000

= 12566.370614mm²

Approximately = 12566.4 mm²

The Surface Area of the petri dish with no lid = 12566.4 mm²

3 0
3 years ago
Т.N лежи на отсечката AB, така, че AN:NB=7:4, AN=22,4dm. Дължината на отсечката AB
Lubov Fominskaja [6]
Yes um can you translate that?
7 0
2 years ago
In throwing a die what is the probability of getting even or prime number​
Julli [10]

die number : 1 2 3 4 5 6

<em>p</em><em>r</em><em>o</em><em>b</em><em>a</em><em>b</em><em>i</em><em>l</em><em>i</em><em>t</em><em>y</em><em> </em><em>o</em><em>f</em><em> </em><em>g</em><em>e</em><em>t</em><em>t</em><em>i</em><em>n</em><em>g</em><em> </em><em>e</em><em>v</em><em>e</em><em>n</em><em> </em><em>n</em><em>u</em><em>m</em><em>b</em><em>e</em><em>r</em><em> </em><em>:</em><em> </em><em>3</em><em>/</em><em>6</em>

because the number 2,4,6 are even number

the number 3 is 'how many even number?'

while 6 is the total number in throwing a die

<em>p</em><em>r</em><em>o</em><em>b</em><em>a</em><em>b</em><em>i</em><em>l</em><em>i</em><em>t</em><em>y</em><em> </em><em>o</em><em>f</em><em> </em><em>g</em><em>e</em><em>t</em><em>t</em><em>i</em><em>n</em><em>g</em><em> </em><em>p</em><em>r</em><em>i</em><em>m</em><em>e</em><em> </em><em>n</em><em>u</em><em>m</em><em>b</em><em>e</em><em>r</em><em> </em><em> </em><em>:</em><em> </em><em>2</em><em>/</em><em>6</em>

because the number 3,5 are only prime number

the number 2 is 'how many prime number?'

while 6 is the total number in throwing a die

the question ask : getting even OR prime number

this means that we have to add the probability of even and prime number

3/6 + 2/6 = 5/6 (answer)

5 0
3 years ago
The solution x + b &gt; -14 is x &gt; -21. What is the value of x?
Morgarella [4.7K]

Answer:

b=+7

Step-by-step explanation:

Because when you choose -7

you will get it another side pos+

That's a mistake.

8 0
3 years ago
Choose the graph of y &lt; -x^2 + 4x + 5<br><br><br> edge2020
jok3333 [9.3K]

First one the one that has the blue inside

7 0
3 years ago
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