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4 years ago

-4v-12=-12-4v I need so much help!!!!

Mathematics

2 answers:

tankabanditka [31]4 years ago

8 0

Answer:

0 = 0

Step-by-step explanation:

-BARSIC- [3]4 years ago

7 0

Answer:

all real numbers

Step-by-step explanation:

-4v - 12 = -12 - 4v

Add 4v to both sides. Add 12 to both sides.

0 = 0

Since 0 = 0 is a true statement and has no variables, that means the equation has an infinite number of solutions. Every number is a solution of this equations.

Answer: All real numbers

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Kwame borrowed 300 Ghana cedis from a finance company. He repaid the loan in six equal installment 55 Ghana cedis. How much inte

Bumek [7]

Answer:

The amount of interest, he payed is 30 Ghana Cedis

Step-by-step explanation:

The amount Kwame borrowed from the finance company, P = 300 Ghana Cedis

The amount he repaid in each installment, M = 55 Ghana Cedis

The number of installments with which he repaid the loan, n = 6 installments

The amount of interest, "i", he payed, is given by the following formula;

The amount of interest, he payed, i = M × n - P

Therefore, i = 55 × 6 - 300 = 30

The amount of interest, he payed = i = 30 Ghana Cedis.

3 0

3 years ago

C = 200 – 7x + 0.345x2 find the domain and range of C.

Mkey [24]

Answer:

Domain: $(-\infty,\infty)$

Range: $[164.493,\infty)$

Step-by-step explanation:

The domain is all x-values. Since it doesn't matter what you put in for x, all real numbers work.

The range is all y-values. Since the leading coefficient of 0.345 is positive, this means we need to find the absolute minimum by using the formula $x=-\frac{b}{2a}$ and then determining what C is given the value of x:

$x=-\frac{b}{2a}$

$x=-\frac{-7}{2(0.345)}$

$x\approx10.145$

Therefore:

$C=200-7x+0.345x^2$

$C=200-7(10.145)+0.345(10.145)^2$

$C\approx164.493$ is the absolute minimum

7 0

2 years ago

Two boats are travelling at 30 miles/hr, the first going north and the second going east. The second crosses the path of the fir

vampirchik [111]

Answer:

their distance is increasing at the rate of 41.6 miles/hr

Step-by-step explanation:

Given the data in the question;

first we determine the distance travelled by the first boat in 10 min when the second boat was crossing its path;

⇒ ( 30/60 ) × 10 = 5 miles

so as illustrated in the diagram below;

y² = x² + ( x + 5 )²

2y $\frac{dy}{dt}$ = 2x $\frac{dx}{dt}$ + 2(x+5) $\frac{dx}{dt}$

y $\frac{dy}{dt}$ = ( 2x + 5 ) ] $\frac{dx}{dt}$

$\frac{dy}{dt}$ = [( 2x + 5 )/y ] $\frac{dx}{dt}$ ------ let this be equation 1

Now, given that, $\frac{dx}{dt}$ = 30 miles/hr, when x = 10

y = √( 10² + 15² ) = √325

so from equation 1

$\frac{dy}{dt}$ = [( 2x + 5 )/y ] $\frac{dx}{dt}$

we substitute

$\frac{dy}{dt}$ = [( 2(10) + 5 ) / √325 ]30

$\frac{dy}{dt}$ = [ 25 / √325 ] × 30

$\frac{dy}{dt}$ = 41.6 miles/hr

Therefore, their distance is increasing at the rate of 41.6 miles/hr

5 0

3 years ago

Please Help<br> IMMEDIATELY

zmey [24]

Answer:

Let x equal the recurring decimal:

$\sf Equation\:1: \quad x=0.216216216...$

Create another number with recurring 216s by multiplying the above expression by 1000:

$\sf Equation\:2: \quad 1000x=216.216216...$

Subtract Equation 1 from Equation 2 to eliminate the recurring digits after the decimal:

$\sf \implies 1000x-x=216.216216...-0.216216...$

$\sf \implies 999x=216$

Divide both sides by 999:

$\sf \implies \dfrac{999x}{999}=\dfrac{216}{999}$

$\sf \implies x=\dfrac{216}{999}$

Simplify:

$\sf \implies x=\dfrac{216 \div 27}{999 \div 27}=\dfrac{8}{37}$

3 0

2 years ago

Read 2 more answers

The base of a box is a rectangle. The width of the box is half its length. The height of the box is 0.5m. Find the volume of the

Ivan

Let x be the length and y be the width.
We know already
$y= \frac{x}{2}$
Area of the base $xy$
Area of the sides: $(x+y)0.25$
We get the equation $xy=0.25(x+y)-1.08$
We will solve the system:
$y= \frac{x}{2}\\xy=0.5(x+y)-1.08$
The above system has no real solution, please check your values.

3 0

3 years ago

Read 2 more answers