3 years ago

Help?!? will give a medal!

Mathematics

2 answers:

-Dominant- [34]3 years ago

8 0

Answer:

the Answer is A i just took the test

GalinKa [24]3 years ago

3 0

The formula for area of a circle is:

A = πr^2

where A is the area and r is the radius which is half the diameter.

Let's plug in values we know and solve:

A = 3.14(11 in)^2

A = 3.14(121 in^2)

A = 379.94 in^2

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Log 15 (2x − 2) = log 15 (x+9)

notka56 [123]

Answer:

$x=11$

Step-by-step explanation:

Given the equation

$\log_{15}(2x-2)=\log_{15}(x+9)$

Note that

$2x-2>0\\ \\2x>2\\ \\x>1$

and

$x+9>0\\ \\x>-9$

Combined, $x>1$

Solve the equation:

$2x-2= x+9\\ \\2x-x=9+2\\ \\x=11$

Since $11>1,$ this is the solution to the equation.

5 0

4 years ago

Omg pls help ill give you 20 points

ElenaW [278]

Answer:

Step-by-step explanation:

Amount of water in tank 1 = amount of water in tank 2

30t +25 = -20t + 1000

Add 20t to both sides

30t + 20t + 25 = -20t + 20t + 1000

50t + 25 = 1000

Subtract 25 from both sides

50t + 25 - 25 = 1000 - 25

50t = 975

Divide both sides by 50

t = 975/50 = 39/2

$= 19 \frac{1}2}$

t = 19 minutes 30 seconds

After 19 1/2 minutes both tanks will have 610 liters of water

5 0

3 years ago

Which of the following shows the correct steps in solving the equation?<br> -8x + 3 = 19

Firlakuza [10]

Answer:

-8x=19-3

-8x=16

x= 16/-8

x=-2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. We obtain the fol

Vitek1552 [10]

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

5 0

4 years ago

Which of the following lines is parallel to the line y = 4x - 6?

Dovator [93]

Answer:

d y=4x + 5

Step-by-step explanation:

Is parallel beacause they have the same slope, remember

y=ax + c

where a is the slope of the line

8 0

3 years ago