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3 years ago

All of the following are equivalent except _____.

Mathematics

2 answers:

ivann1987 [24]3 years ago

5 0

Answer:

$-2 \: \: 4$

Step-by-step explanation:

-2 4 is not an equivalent equation

neonofarm [45]3 years ago

3 0

Answer:

Step-by-step explanation:

duh

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13. The radius of Earth is approximately 6.4 x 100 m. Use the formula V = 4/3pr^3

romanna [79]

We are given

Radius of Earth; 6.4 x 100 meters = 640 meters

Clearly, the shape of the earth is a sphere. Thus, to determine the volume of the earth, we will use a formula that determines the volume of a sphere.

$\implies \text{Volume of sphere =} \ \dfrac{4\pi r^{3}}{3}$

When we substitute the radius in the formula, we get;

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)^{3}}{3}$

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}$

Take π as 3.14

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}$

$\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}$

Simplify the numerator;

$\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}$

$\implies \text{Volume of sphere} = \dfrac{3292528640}{3}$

Divide the numerator by 3;

$\implies \text{Volume of sphere} = \dfrac{3292528640}{3}$

$\implies \text{Volume of sphere} = \boxed{1097509546.67 \ \text{m}^{3} } \ \ \ (\text{Estimated})$

4 0

2 years ago

Need help in my quiz bc I want to passsss pls send helps

Whitepunk [10]

Answer:

pethagoru

8^2 + 6^2= 100

pethagorus theory is a^2+b^2=c^2.

a^2 = base

b^2= side

c^2= hypotenuse

6 0

3 years ago

Solve the equation (Picture provided)

USPshnik [31]

Answer:

The correct answer option is D. 120°, 240°.

Step-by-step explanation:

We are given the information about x that $cos x=-\frac{1}{2}$ .

We know that [tex]cos x=-\frac{1}{2}[/tex ] is actually the ratio of adjacent side to the hypotenuse. It means that here, adjacent is -1 and hypotenuse is 2.

A negative cosine tells us that the angle is either in Quadrant II or Quadrant III.

So if it is in 2nd quadrant, then x = 120° and if its in 3rd quadrant then x = 240°.

6 0

3 years ago

Read 2 more answers

Factor: 2x + 2y Show work please

bearhunter [10]

Answer:

2(x + y)

Step-by-step explanation:

You can pull out a 2 from the expression.

So divide 2x by 2 and 2y by 2.

2x/2 = x

2y/2 = y

2(x + y)

7 0

3 years ago

How does the graph of g(x) = -(x - 2)4 compare to the parent function of f(x) = x4?

zzz [600]

Answer:

g(x) is shifted 2 units to the right and reflected over the x-axis.

Step-by-step explanation:

6 0

3 years ago