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3 years ago

Which ratio is greater than 5 over 8

Mathematics

2 answers:

Marizza181 [45]3 years ago

8 0

The correct answer is B. Hope this helps! Enjoy!

kirza4 [7]3 years ago

7 0

Hello there! Your answer would be: B. 3/4!

To solve this equation, you need to simplify the other fractions to start:

12/24 = 1/2

3/4 = 3/4

15/24 = 5/8

4/12 = 1/3

Looking at our options, we can straight away eliminate A and D. This is because 5/8 is greater then 4/8 (and 4/8 = 1/2), and 1/3 and 1/2 are both equal to and below 1/2.

Now, we have 5/8 and 3/4. Since the question is asking which is greater, we can eliminate 5/8, since it has the same value.

Now we have 3/4 left, which is your correct answer, but if you wanted to check it you could always multiply the numerator and denominator by 2/2. you get 6/8, which is in fact greater than 5/8.

Hope this helps, have a great day!

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If f(a) = K, then which of the following must be true? f(K) = a f -1(K) = a f -1(a) = K

Inessa05 [86]

Answer:

Step-by-step explanation:

given that f(a) = K

we have the options of

f(K) = a

f ⁻¹ (K) = a

f ⁻¹ (a) = K

Where f ⁻¹ denotes an inverse function.

If f(a) = K, then its reciprocate, f ⁻¹ (K) = a

because it is essentially undoing the original equation

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3 years ago

An arrow is shot vertically upward at a rate of 210 feet per second. Use the projectile formula h = −16t2 + v0t to determine at

Klio2033 [76]

Answer:

Time equal to 3.30 seconds when the arrow was going up.

Time equal to 7.94 seconds when the arrow was going down.

Step-by-step explanation:

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2 years ago

A rectangle is placed around a semicircle as shown below. The length of the rectangle is 14mm. Find the area of the shaded regio

Damm [24]

Image is missing, so i have attached it

Answer:

21.07 mm²

Step-by-step explanation:

We will use the Formulas:

Area of semicircle = πr²/2

Area_rectangle = Length x width = Lw

We are given:

Length of rectangle = 14 mm

From the attached image, the diameter of the semicircle is equal to the length of the rectangle.

Thus;

diameter of semicircle = length of rectangle

Therefore,

diameter of semicircle = 14 mm

Also, from the attached image, the radius of the semicircle is equal to the width of the rectangle.

Thus;

diameter of semicircle/2 = radius of semicircle

Hence;

radius of semicircle = 14/2 = 7mm = width of rectangle

Thus;

Area of rectangle = L*w = 14 × 7 = 98 mm²

Area of semicircle = πr²/2 = π×7²/2 = 76.93 mm²

To get the area of the shaded region, we will subtract area of the semi-circle from the area of the rectangle.

Area of shaded region = Area_rectangle - Area_semicircle = 98 - 76.93 = 21.07 mm²

7 0

2 years ago

What is the solution of square root of x plus twelve equals x

Bess [88]

Answer:

x=4

Step-by-step explanation:

√x+12=x

x+12=x2(Square both sides)

x+12=x2

x+12−x2=x2−x2(Subtract x^2 from both sides)

−x2+x+12=0

(−x−3)(x−4)=0(Factor left side of equation)

−x−3=0 or x−4=0(Set factors equal to 0)

x=−3 or x=4

x=−3(Doesn't work in original equation)

x=√x+12

7 0

3 years ago

Read 2 more answers

Suppose that angle P = 3x + 14 and angle Q = 3x - 27. If these angles are supplementary, angle Q would need to be ___ degrees.

adelina 88 [10]

Answer:

Q = 69.5 degrees

Step-by-step explanation:

3x + 14 + 3x - 27 = 180

6x - 13 = 180

6x = 193

x = 32.1667

Q = 3(32.1667) - 27

Q = 69.5

5 0

2 years ago