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andrey2020 [161]
4 years ago
10

Dexter plans to spend totally 8 hours on preparing

Mathematics
1 answer:
Alex73 [517]4 years ago
6 0

Answer:

2 hours

Step-by-step explanation:

Let the total time allotted for English be x

Hence the total time for Biology studies = 2x

Time allotted for Math = 3.5

Rest time = 30 min + 30 min +30 min = 90 min = 1.5 hrs

Total time for studies = x+2x+3.5+1.5 which is given as 8 hours

Thus

x+2x+3.5+1.5 =8

3x+5=8

3x=3

x=1

Hence time on English = 1 hours

Time for biology = 1 x 2 = 2 hours

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4 0
3 years ago
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Billy is creating a circular garden divided into 8 equal sections. The diameter of the garden is 12 feet.
lubasha [3.4K]

Answer:

Step-by-step explanation:

area=πr^2

so we need to find the area then divide by 8

so

we know that diameter=2radius or diameter/2=radius so

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12/2=radius=6

subsitute

area=π(6)^2

area=36π

divide 36π by 8

36π/8=18π/4=9π/2π=4.5π

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3 0
3 years ago
Step 2: Radii OK and NL are perpendicular to OM because of the radius-tangent theorem. By definition of perpendicular, angles KO
viva [34]

Answer:

<h2>AAA postulate.</h2>

Step-by-step explanation:

Givens

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If two internal angles of two triangles are congruent, then the third angle is also congruent.

Therefore, the similarity is proven by AAA postulate, which states that if we have three corresponding angles congruent, then those triangles are similar.

Remember that similarity is about proportion between sides and congruence between angles.

8 0
4 years ago
This circle is centered at the origin, and the length of its radius is 2. What iS
Igoryamba

Answer:

Step-by-step explanation:

If the center of the circle is at the origin, the general formula for the circle is

x^2 + y^2 = r^2.

Since r  = 2 units in this particular problem, the equation of the circle is:

x^2 + y^2 = 2^2,  or  x^2 + y^2 = 4

3 0
3 years ago
17. Solve for x: 3xyz <br> i need help i would be very grateful ty :)
olga2289 [7]

Answer:

  • C. x = P/3yz

Step-by-step explanation:

<u>Given equation:</u>

  • 3xyz = P

<u>Solve for x, divide both sides by 3yz:</u>

  • 3xyz/3yz = P/3yz
  • x = P/3yz

Correct choice is C

3 0
3 years ago
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