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2 years ago

I need help and the answer for this practice question please help

Mathematics

1 answer:

muminat2 years ago

4 0

Answer:

The answer is ∆XWY. The reason being both sides are congruent.

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Simplify the ratio 15:13

tino4ka555 [31]

15:13 is in its simplest form already, since 13 is a prime number and 15 is not a multiple of 13.

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4 years ago

Help asapppp!!!! what is 7 billion divided by 13 thousand rounded to the nerest 10th

Degger [83]

Answer:

538461.5

Step-by-step explanation:

3 0

4 years ago

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Solve the inequality 2(x-6)<1/2 (12x-8) neeed help

Rudiy27

Hi there...

2( x - 6) < 1/2(12x - 8)
2x - 12 < (12x- 8)/2
2x - 12 < 6x - 4
2x - 6x < -4 + 12
-4x < 8
Divide both sides by -4
-4x/-4 < 8/-4
x > - 2

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3 years ago

Find a number in the closed interval [1/2,3/2] such that the sum of the number and its reciprocal is

sattari [20]

Let's assume that number as x

so,

the sum of the number and its reciprocal is

$S(x)=x+\frac{1}{x}$

Firstly, we will find derivative

$S'(x)=1-\frac{1}{x^2}$

now, we can set it to 0

and then we can solve for x

$S'(x)=1-\frac{1}{x^2}=0$

$x=-1,x=1$

Since, only x=1 lies on [1/2,3/2]

so, we will consider only x=1

now, we can plug end values and x=1 into S

At x=1/2:

we can plug x=1/2

$S(\frac{1}{2})=\frac{1}{2} +\frac{1}{\frac{1}{2}}$

$S(\frac{1}{2})=\frac{1}{2} +2$

$S(\frac{1}{2})=\frac{5}{2}$

At x=1:

we can plug x=1

$S(1)=1 +\frac{1}{1}$

$S(1)=1 +1$

$S(1)=2$

At x=3/2:

we can plug x=3/2

$S(\frac{3}{2})=\frac{3}{2} +\frac{1}{\frac{3}{2}}$

$S(\frac{3}{2})=\frac{3}{2} +\frac{2}{3}$

$S(\frac{3}{2})=\frac{13}{6}$

(a)

Smallest value:

The smallest value among them

$S(1)=2$

So, a number is 1..........Answer

(b)

Largest value:

The largest value among them

$S(\frac{1}{2})=\frac{5}{2}$

So, a number is $\frac{1}{2}$ ........Answer

6 0

4 years ago

Convert 30 kilometers to miles?

Anna11 [10]

18.641 Miles is your answer
Hope this helps

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3 years ago

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