MATHEMATICS HIGH SCHOOL

20 hundreds equal how many thousands

Answers

Answer 1
Answer:

The answer you want is 2

20 hundreds = 2000 or 2 thousands
Answer 2
Answer:

How to solve it:

20 * 100 = 2000


And:

2000 = 2 thousands



Hope it helped,



BioTeacher101

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Which statement describes the first step to solve the equation by completing the square? 2x^2+12x=32 Multiply both sides of the equation by 16 . Add 6 to each side of the equation. Multiply both sides of the equation by 12 . Add 36 to each side of the equation.

Please
work out
∛15.76 - 4.6³ ÷2.5/3

Answers

Answer:

-10.47413972 or -10.47

Step-by-step explanation:

Calculator

Answer:

-10.47 is the answer

Step-by-step explanation:

Calculator

Simplify the square root of four over the cubed root of four.

Answers

\bf ~\hspace{7em}\textit{rational exponents} \n\n a^{( n)/( m)} \implies \sqrt[ m]{a^ n} ~\hspace{10em} a^{-( n)/( m)} \implies \cfrac{1}{a^{( n)/( m)}} \implies \cfrac{1}{\sqrt[ m]{a^ n}} \n\n\n ~\hspace{7em}\textit{negative exponents} \n\n a^(-n) \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^(-n)} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^(-m)\implies a^(n-m) \n\n[-0.35em] \rule{34em}{0.25pt}

\bf \cfrac{√(4)}{\sqrt[3]{4}}\implies \cfrac{\sqrt[2]{4}}{\sqrt[3]{4}}\implies \cfrac{4^{(1)/(2)}}{4^{(1)/(3)}}\implies 4^{(1)/(2)}\cdot 4^{-(1)/(3)}\implies 4^{(1)/(2)-(1)/(3)}\implies 4^{(3-2)/(6)} \n\n\n 4^{(1)/(6)}\implies (2^2)^{(1)/(6)}\implies 2^{2\cdot (1)/(6)}\implies 2(1)/(3)\implies \sqrt[3]{2}

Answer:

2 will be the answer

Step-by-step explanation:

At a speed of 22 revolutions per minute, how long will it take a wheel of radius 10, rolling on its edge, to travel 10 feet? (Assume p equals 22/7, and express answer to nearest 0.1 second.)

Answers

I don't know if this is 100% correct...but i think this is how you would solve this problem!!!

OOOKKKKK.........

We all know that a well is circular. So, First, lets find out the circumference of the wheel.

Given :
radius = 10 feet
π = 22 / 7
We know,
Circumference = 2πr
                      = 2 × (22 / 7) × 10
                      = 62.9 ft.

Now,
One revolution means the wheel has covered a distance equal to its circumference. So, 22 revolutions per minute means that the wheel is covering 22 times its circumference in 1 minute. So, Lets convert the revolution to feet.

Given,
The wheel is travelling at 22 revolutions per minute.
                                 =  22 * Circumference per minute
                                 =  22 * 62.9 ft. per minute
                                 = 1383.8 ft. per minute
Now, that we know how much feet it is travelling in 1 minute, we can easily find how much it takes it to travel 10 feet. 

Using unitary method,
The wheel travels 1383.8 ft. in 1 minute
The wheel travels 1383.8 ft. in 60 seconds.
The wheel travels 1 ft. in (60 /  1383.8) seconds.
The wheel travels 10 ft. in (60 /  1383.8) * 10 seconds.
                                      = 0.4 seconds

So, the answer is 0.4 seconds. Of course...the answer is rounded!!

A spherical balloon is inflating with helium at a rate of 6464piπ StartFraction ft cubed Over min EndFraction ft3 min. How fast is the​ balloon's radius increasing at the instant the radius is 22 ​ft? How fast is the surface area​ increasing?

Answers

Answer:

the surface area​ will increase 16  feet per minute

Step-by-step explanation:

Allow me to revise your question for a better understanding.

A spherical balloon is inflating with helium at a rate of 64π Start Fraction ft cubed Over min End Fraction ft3 min. How fast is the​ balloon's radius increasing at the instant the radius is 2 ​ft? How fast is the surface area​ increasing?

My answer:  

Given that:

(dV)/(dt) = 64\pi \frac{\text{ ft}^3}{\text{min}}  (1)

As we know that, the volume of a  spherical balloon can be calculated by using the following formula:

V = (4)/(3)\pi r^3 where r is the radius

Substitute V into (1), we have:

(dV)/(dt) = (d)/(dt)((4)/(3)\pi r^3)\n\n(dV)/(dt) =4\pi r^2(dr)/(dt)

In this situation, the instant radius is: 2f

So we have:

64\pi = 4\pi (2)^2(dr)/(dt)\n\n\Rightarrow (dr)/(dt) = 4

The radius of the balloon is increasing at a rate of 4 feet per minute

The the surface area​ has the formula as:

SA1 = 4πr^(2)

If the radius of the balloon is increasing at a rate of 4 feet per minute, so the

the surface area​ will increase 16  feet per minute  because:

SA2 : 4π(4r)^(2)  = 16 (4πr^(2) ) = 16 SA1

Hope it will find you well.

Formula for finding the line of symmetry of a quadratic function?

Answers

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Amelia takes her two cats sparkle and twinkle to the vet the vet says that sparkle is 464 mm long and twinkle is 46 cm long which of Amelia's cats is longer EXPLAIN

Answers

Sparkle is longer because 464 as cm is 46.4, consequently longer thatn 46 cm.
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