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3 years ago

Help please ................

Mathematics

2 answers:

tigry1 [53]3 years ago

6 0

Answer:

187.25

Step-by-step explanation:

svlad2 [7]3 years ago

6 0

729÷ 4 = 182 if you have a calculator it shows 182. 25 round it like is the two bigger than 5or less then if it is less leave it like that just the 182

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What is the slope of a line that is perpendicular to a line whose slope is -1/3.

solniwko [45]

Answer:

Step-by-step explanation:

the perpendicular slope is the negative reciprocal.

-1 divided by -1/3 = 3

6 0

3 years ago

Solve the initial value problem: y'(x)=(4y(x)+25)^(1/2) ,y(1)=6. you can't really tell, but the '1/2' is the exponent

goblinko [34]

Answer:

$y(x)=x^2+5x$

Step-by-step explanation:

Given: $y'=\sqrt{4y+25}$

Initial value: y(1)=6

Let $y'=\dfrac{dy}{dx}$

$\dfrac{dy}{dx}=\sqrt{4y+25}$

Variable separable

$\dfrac{dy}{\sqrt{4y+25}}=dx$

Integrate both sides

$\int \dfrac{dy}{\sqrt{4y+25}}=\int dx$

$\sqrt{4y+25}=2x+C$

Initial condition, y(1)=6

$\sqrt{4\cdot 6+25}=2\cdot 1+C$

$C=5$

Put C into equation

Solution:

$\sqrt{4y+25}=2x+5$

$4y+25=(2x+5)^2$

$y(x)=\dfrac{1}{4}(2x+5)^2-\dfrac{25}{4}$

$y(x)=x^2+5x$

Hence, The solution is $y(x)=\dfrac{1}{4}(2x+5)^2-\dfrac{25}{4}$ or $y(x)=x^2+5x$

4 0

3 years ago

Seven less than sixteen times a number is equal to the same number reduced by 5. What is the number?

Romashka [77]

Answer:

x = 2/15

Step-by-step explanation:

first, create a formula or expression

16x - 7 = x - 5

move x, subtract it

15x - 7 = -5

add 7

15x = 2

divide by 15

x = 2/15

sub in to check:

-4.85667 = -4.86667

7 0

3 years ago

I need help again... 4x divided by 8 = 3

iogann1982 [59]

X=6.0000000000000000000

3 0

3 years ago

Read 2 more answers

If point C is not located between points A and B then AC+CB__ AB

Gre4nikov [31]

Answer:

$\neq$

Step-by-step explanation:

If Point C <em>was </em>located between A & B, then:

$AC+CB=AB$

However, we are told Point C is <em>not</em>; therefore:

$AC+AB\neq AB$

6 0

3 years ago