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Varvara68 [4.7K]
3 years ago
13

The answer to 7/12 divided by 2

Mathematics
1 answer:
bija089 [108]3 years ago
3 0

Answer: 7/24

Step-by-step explanation: Think of the 2 as 2/1.

When dividing by a fraction, we can simply change, we can simply change the multiplication sig to division and take the reciprocal of the second fraction or flip the second fraction.

So our problem can be rewritten as (\frac{7}{12}) x (\frac{1}{2}).

Now multiplying across the top and bottom we get 7/24.

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Solve this equation by completing the square: x2 + 4x – 13 = –8
marishachu [46]

Answer:

x = 1 or x = -5

Step-by-step explanation:

We are given;

  • The quadratic equation, x² + 4x - 13 = -8

We are required to solve the equation using the completing square method.

To do this, we use the following steps;

Step 1: We make sure the coefficient of x² is one

x² + 4x - 13 = -8

Step 2: Combine the like terms (take the constant term to the other side)

x² + 4x - 13 = -8

x² + 4x = -8 + 13

we get

x² + 4x  = 5

Step 3: We add the square of half the coefficient of x on both sides of the equation

Coefficient of x = 4

Half of coefficient of x = 2

Square of half the coefficient of x = 2² (4)

We get;

x² + 4x + (2²)  = 5 + (2²)

Step 4: Put x and 2 under one square and the solve the other side of the equation.

We get

(x + 2)² = 5 + 4

(x + 2)² = 9

Step 5: Get the square root on both sides of the equation;

(x + 2)² = 9

√(x + 2)² = ±√9

(x + 2)= ±3

Therefore;

x+2 = + 3 or x + 2 = -3

Thus, x = 1 or -5

The solution of the equation is x = 1 or x = -5

6 0
3 years ago
What as a numerical expression four times the sum of 5 and 6
S_A_V [24]

Answer:

4(5+6) = Distribute

20 + 24 = Add

44

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
a television station allocates 9 minutes of its prime time programming to commercials what percent in each hour of prime time pr
hram777 [196]
9/60 = 0.15 = 15 percent 

6 0
2 years ago
Estimate the number of tennis balls that would fill a 10 by 12 by 24 foot room? Diameter of tennis ball is 2.5 inches
Pani-rosa [81]

Answer:

9,515balls

Step-by-step explanation:

Total surface area of the room = 2LW+2LH+2WH

L is the length

W is the width

H is the height

Given

L = 10, W = 12 and H = 24

Surface area = 2(10)(12)+2(10)(24)+2(12)(24)

Surface area = 240+480+576

Surface area of the room = 1296ft²

If each ball in the room is 2.5in

Converting to inches to foot

1ft = 12in

xft = 2.5in

Cross multiply

x = 2.5/12

x = 0.2083ft

Diameter of the tennis ball is 0.2083ft

Total surface area of the ball = 4πr² or πd²

Total surface area of the ball = 3.14(0.2083)² = 0.1362ft²

Number of ball in the room = Total surface area of the room/Total surface area of the ball

Number of ball in the room = 1296/0.1362

Number of ball in the room = 9515.4

Number of ball in the room ≈ 9,515 balls

6 0
3 years ago
4 4/5 divided by 3 3/5
Gwar [14]

Answer:

(hope this helps can I pls have brainlist (crown) ☺️)

Step-by-step explanation:

In pic

4 0
3 years ago
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