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3 years ago

A quarter and a number cube are tossed at the same time.

Mathematics

1 answer:

Margaret [11]3 years ago

7 0

Answer:

.25 / 1/4

Step-by-step explanation:

1/2 times 3/6 equals 3/12, or 1/4

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Mary is solving the equation 2n – 3 = 83. Her first three steps are shown:

Stells [14]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
2^n - 3 = 83
2^n = 86 
ln(2^n) = ln(86) 
n*ln(2) = ln(86) 
n= ln(86)/[ln(2)] (which is the same as "log base 2 of 86") 
n= 6.426264755

7 0

3 years ago

Find the area of the largest square contained by a circle of radius r = 1cm. Explain your answer and justify that it is correct.

Elena-2011 [213]

Answer:

2 square cm

Step-by-step explanation:

Given :

A square is inscribed in a circle whose radius is r = 1 cm

Therefore, the diameter of the circle is 2 r = 2 x 1

= 2 cm.

So the diagonal of the square is 2r.

Using the Pythagoras theorem, we find each of the side of the triangle is $r \sqrt 2$ .

Therefore, the area of the square is given by $\text{(side)}^2$

= $(r\sqrt 2)^2$

$= 2 r^2$

$= 2 (1)^2$

$=2 \ cm^2$

Hence the area of the largest square that is contained by a circle of radius 1 cm is 2 cm square.

7 0

3 years ago

What is the surface area?

frosja888 [35]

98cm^2 - bigger triangles are 28 each, bottom one is 14. (28 x 3) + 14=98

3 0

3 years ago

What is the equation of the circle center (0, 3) and radius 4?

Sunny_sXe [5.5K]

Answer:

( x )² + ( y - 3 )² = 16

Step-by-step explanation:

The general format for circular equations is ( x - a )² + ( y - b )² = r²

3 0

3 years ago

Read 2 more answers

What is 1 1/2 minus 1/4

vfiekz [6]

1 1/2 - 1/4
You have to have a common denominator which is 4 in this istance.
That makes it 1 2/4 - 1/4. That equals 1 3/4.

Hope that this helped! :)

8 0

3 years ago

Read 2 more answers