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3 years ago

Which of the following occurs within the solutions process for 3sqrt(5x-2)-3sqrt(4x)=0

Mathematics

2 answers:

Anna71 [15]3 years ago

7 0

Cubing both sides once 100%

frutty [35]3 years ago

7 0

Answer:

C on Edge2020: Cubing both sides once.

Step-by-step explanation:

In order to get rid of the radicals in the equation, we must cube both sides.

$\sqrt[3]{5x-2} -\sqrt[3]{4x} =0$ is the original equation. Cube both sides:

$5x-2-4x=0$ is what we have now that we have gotten rid of radicals.

Simplify by combining like terms and solve for $x$ .

$x-2=0$

$x=2$

Note that we have cubed both sides only once. Therefore, C is the solution.

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A car uses 30 gallons of gasoline for a trip of 800 miles. How many gallons would

antoniya [11.8K]

Answer:

26.25 gallons

Step-by-step explanation:

$\frac{30 gallons}{800 miles} = \frac{x}{700 miles}$

21000 = 800x

x = 26.25 gallons

6 0

3 years ago

DESPERATELY NEED HELP

In-s [12.5K]

Remark

You must use the sin law to find this.

$\dfrac{Sin(75)}{22} = \dfrac{Sin(x)}{12}$

Multiply through by 12

12 * $\dfrac{Sin(75)}{22} = \dfrac{Sin(x)}{12}$ *12

$\dfrac{12*sin(75)}{22} = \text{sin(x)}$

0.5269 = sin(x)

Now you have to use the inverse of the sine function.

Use your calculator for that

2nd F

sin-1

(0.5269)

= 31.79 degrees. <<<<<< Answer.

There sometimes is a second answer. I don't think there is in this case.

3 0

3 years ago

HELPPPP- you just got your driver's license. Your parents buy you a car and agree to let you pay them back over a period of 70 m

Nitella [24]

Using the monthly payments formula, it is found that a car with a value of at most $25,293.

<h3>What is the monthly payment formula?</h3>

It is given by:

$A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}$

In which:

P is the initial amount.

r is the interest rate.

n is the number of payments.

In this problem, we have that the parameters are given as follows:

A = 400, n = 70, r = 0.035.

Hence:

r/12 = 0.035/12 = 0.002917.

Then we have to solve for P to find the maximum value of the car.

$A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}$

$400 = P\frac{0.002917(1.002917)^{70}}{(1.002917)^{70}-1}$

$P = \frac{400[(1.002917)^{70}-1]}{0.002917(1.002917)^{70}}$

P = $25,293.

More can be learned about the monthly payments formula at brainly.com/question/26267630

#SPJ1

7 0

2 years ago

I need help asap :(:):)

zubka84 [21]

I think it’s the 3rd one

8 0

3 years ago

Miles had three sets of building blocks.His first sett had 491 pieces.His second sett had 624 pieces.Miles combined his three se

qaws [65]

Answer:

259

Step-by-step explanation:

491+624=1115. 1374-1115=259

7 0

3 years ago