All categories

3 years ago

Jose and David each had to rent cars for their company. Jose rented some vans and some SUVs in

Mathematics

1 answer:

Gnesinka [82]3 years ago

8 0

Answer:

$\left \{ {{x+y=312} \atop {12x+3y=264}} \right.$

Step-by-step explanation:

The suvs have to add together

You might be interested in

Using π = 3.14, find the area of a circle with a radius of 4.2. Round your answer to the nearest hundredth. will give brainliest

xxMikexx [17]

Answer:

<h2>55.39 units ^2</h2>

Step-by-step explanation:

A=pi*r^2

A=3.14*4.2^2

A=3.14*17.64

A=55.3896

A≈55.39 units ^2

7 0

3 years ago

Read 2 more answers

A dermatology patient is treated with ultraviolet light having a wavelength of 375 nm. What is the wavelength expressed in centi

sergeinik [125]

1 nanometer = 1 * 10^9 meters

so 1 nanometer = 1 * 10^7 centimeters

375 nanometers = 3,75 * 10^5 centimeters

4 0

3 years ago

Read 2 more answers

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Step2247 [10]

Answer:

$A = 297\pi$

Step-by-step explanation:

To solve this problem we need to be familiar with the formula for the surface area of a cone:

$A = \pi r(r + \sqrt{h^2+r^2})$

We are given the length of a side and the diameter, to calculate the radius divide the diameter in half:

$r = \frac{d}{2}\\r = \frac{18}{2}\\r = 9 cm$

To calculate the height of the cone, we must use the Pythagorean Theorem:

$C^2 = A^2 + B^2$

We can treat the side length as the hypotenuse $C$ , the radius as the base $A$ , and solve for height $B$ . Set the expression up like this:

$C^2 = A^2 + B^2\\24^2 = 9^2 + B^2\\B^2 = 24^2 - 9^2\\B = \sqrt{24^2 - 9^2}\\B = \sqrt{576 - 81}\\B = \sqrt{495}\\B \approx 22.25$

Now we can plug into our original formula:

$A = \pi r(r + \sqrt{h^2+r^2})\\A = \pi 9(9+\sqrt{\sqrt{495}^2+9^2}\\A = \pi 9(9+\sqrt{495 + 81}\\A = \pi 9(9+\sqrt{576})\\A = \pi 9(9 + 24)\\A = \pi 9(33)\\A = 297\pi$

5 0

2 years ago

This is the easiest question

Arturiano [62]

Answer: $3\dfrac{2}{6}\ h$

Step-by-step explanation:

Given

Rami practices his saxophone for $\frac{5}{6}$ hour on 4 day each week

So, for a week she practices around

$\Rightarrow \dfrac{5}{6}\times 4\\\\\Rightarrow \dfrac{20}{6}$

Converting it into mixed fraction

$\Rightarrow \dfrac{20}{6}=\dfrac{18+2}{6}\\\\\Rightarrow 3\dfrac{2}{6}\ h$

5 0

3 years ago

Solve the inequality

Pie

Answer:

$- 0.6 \leqslant x \leqslant 0.666 \: and \: x > \sqrt[3]{7}$

Step-by-step explanation:

The answer you are saying is correct if it was an equation

In inequalities the answer most of the times comes in ranges

The easiest way to find the range is by graphing the equation and finding the values of x for which the graph is above the x axis

There is a good graphing calculator app called desmos if u don't have one

5 0

3 years ago