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Snezhnost [94]
3 years ago
14

If radius of circle is 7cm. find its diameter with formula.​

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

the radius is 3.5 cm

the Diameter is 7 cm

Margarita [4]3 years ago
4 0
The answer would be 14 cm.

The formula to find diameter is d=2r
D= diameter
R= radius
The 2 is there because you have half of the diameter so just times by 2 to get the diameter.
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An oil drilling company is drilling a hole. The elevation of the bottom of the hole changes by feet each day. After a certain nu
marin [14]

Answer:

option.D

Step-by-step explanation:

  • each day it changes by -73\frac{1}{4}
  • so for two days , the elevation becomes  -73\frac{1}{4} +  -73\frac{1}{4}
  • for 3 days :  -73\frac{1}{4} +  -73\frac{1}{4} +  -73\frac{1}{4}
  • so, for n days,  -73\frac{1}{4} + ........ n times

=  n*-73\frac{1}{4}

  • therefore, for x days, elevation = x*-73\frac{1}{4}
  • as it is given that after certain days this elevation has reached -366\frac{1}{4}
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3 0
3 years ago
Which relation is a function of x? A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 2, 3. Column
Trava [24]

Answer:

  Column 1 is labeled x with entries negative 3, negative 2, 4, 7. Column 2 is labeled y with entries negative 1, 5, 0, negative 1

Step-by-step explanation:

When a value is repeated for an x-entry, the relation is not a function. The last choice describes a table with unique x values.

8 0
3 years ago
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For all the values of x,<br> f(x)=x²+3 g(x)=2x-1 <br> a) find fg(2) <br> b) find gf(2)
erik [133]

Answer:

12 and 13

Step-by-step explanation:

(a)

To evaluate f(g(2)), evaluate g(2) then use the value obtained to evaluate f(x)

g(2) = 2(2) - 1 = 4 - 1 = 3, then

f(3) = 3² + 3 = 9 + 3 = 12

--------------------------------------------

(b)

To evaluate g(f(2)), evaluate f(2) the use the value obtained to evaluate g(x)

f(2) = 2² + 3 = 4 + 3 = 7, then

g(7) = 2(7) - 1 = 14 - 1 = 13

5 0
3 years ago
A submarine starts at the surface of the water and travels to the bottom, a depth of 4000 feet. Graph A shows its distance from
denpristay [2]

Answer:

On Graph B, at 0 hours, the graph will be at 0 feet.

Then, the graph will increase until 1 hour, when the submarine reaches its deepest point.

At 1 hour, the height of Graph B will be 4000 feet.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Hey need help on these NEED HELP ASAP
GalinKa [24]

Answer:

first one : (7+12+3+4+4+8)*2=76

8 0
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