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3 years ago

Please answer Will give brainlst

Mathematics

1 answer:

vodomira [7]3 years ago

4 0

Answer:

Step-by-step explanation:

root(23) - 8 < root(23) - 3 -3 is greater than -8

3 root(62) > 3 root(59) 62 > 59 Since the numbers are positive the roots of the larger number is going to be larger than the roots of the smaller number

-root(50) < - 3

The root of 50 is about 7. - 7 is smaller than - 3. Think money. Would you rather pay 3 dollars for a cup of coffee than 7 dollars for a cup of coffee?

root 15 + 2 < root(65) - 1

root(15) is roughly 4 when 2 is added to it, the result is about 6

root (65) is a touch over 8. When 1 is subtracted the result is about 7.

That's larger than the left side.

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Determine whether the given function is a solution to the given differential equation.

lesantik [10]

Given :

A function , x = 2cos t -3sin t .....equation 1.

A differential equation , x'' + x = 0 .....equation 2.

To Find :

Whether the given function is a solution to the given differential equation.

Solution :

First derivative of x :

$x'=\dfrac{d(2cos t - 3sin t)}{dt}\\\\x'=\dfrac{d(2cost)}{dt}-\dfrac{(3sint)}{dt}\\\\x'=-2sint-3cost$

Now , second derivative :

$x''=\dfrac{d(-2sint-3cost)}{dt}\\\\x''=-\dfrac{d(2sint)}{dt}-\dfrac{d(3cost)}{dt}\\\\x''=-2cost+3sint$

( Note : derivative of sin t is cos t and cos t is -sin t )

Putting value of x'' and x in equation 2 , we get :

=(-2cos t + 3sin t ) + ( 2cos t -3sin t )

= 0

So , x'' and x satisfy equation 2.

Therefore , x function is a solution of given differential equation .

Hence , this is the required solution .

8 0

3 years ago

Need answer ASAP plssss

Marysya12 [62]

Answer:

I believe they ate 4/8. 2 apple and 2 banana muffins makes 4. They still have 4 blueberry muffins left. so 4/8

7 0

3 years ago

How do you solve 3(5x-2)+1=25

Delvig [45]

Answer:

x = 2

Step-by-step explanation:

3(5x - 2) + 1 = 25 (Given)

3(5x) + 3(-2) + 1 = 25 (Distributive Property of Equality)

15x + -6 + 1 = 25 (Simplify)

15x - 5 = 25 (Simplify)

15x + 5 + 5 = 25 + 5 (Addition Property of Equality)

15x = 30 (Simplify)

$\frac{15x}{15} = \frac{30}{15}$ (Division Property of Equality)

x = 2 (Simplify)

8 0

3 years ago

Read 2 more answers

HELP PLEASE !!!!!!!!!!!

horrorfan [7]

Answer:

option B

Step-by-step explanation:

$\lim_{x\to \infty} f(x) = \lim_{x \to \infty} (log(x+2)-3 )$

$= \lim_{x \to \infty} ( log(x+2)) - \lim_{x \to \infty} 3\\\\=\infty - 3\\\\= \infty$

$\lim_{x \to 2} f(x) = \lim_{x \to 2} ( log(x+2)) - \lim_{x \to2} 3\\\\$

$= log( 2 + 2 ) - 3\\\\= log 4 - 3\\\\=log(2^2) -3\\\\=2 log 2 -3$

$\lim_{x \to -2} f(x) = \lim_{x \to -2} ( log(x+2)) - \lim_{x \to -2} 3\\\\$ $\lim_{x \to -2}_+ f(x) = \lim_{x \to -2_+} ( log(x+2)) - \lim_{x \to -2_+} 3 = -\infty\\\\\lim_{x \to -2_-} f(x) = \lim_{x \to -2}_- ( log(x+2)) - \lim_{x \to -2}_- 3 = -\infty\\\\\\\lim_{x \to -2} f(x) = - \infty$

6 0

3 years ago

A tennis court has a length of (5x+7) and a width of (3x-3).

Oxana [17]

15x^2-15x+21x-21
15x^2+6x-21 is the answer

7 0

3 years ago