1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
2 years ago
12

5*10 divided by 30 -10

Mathematics
1 answer:
sp2606 [1]2 years ago
4 0
The answer to your question would be -25/3

As decimal -8.333333
You might be interested in
Find the value of x. <br><br> A. 60<br><br> B. 50 <br><br> C. 40 <br><br> D. 30
garri49 [273]

We can see that two sides of that triangle area equal

so, their corresponding angle will also be equal

now, we know that

sum of all angles in any triangle is always 180

so, we can get equation as

x+100+x=180

now, we can solve for x

2x+100=180

2x=80

x=40

so, option-C..............Answer

8 0
3 years ago
Read 2 more answers
A metal cylinder can with an open top and closed bottom is to have volume 4 cubic feet. Approximate the dimensions that require
Aleksandr-060686 [28]

Answer:

r\approx 1.084\ feet

h\approx 1.084\ feet

\displaystyle A=11.07\ ft^2

Step-by-step explanation:

<u>Optimizing With Derivatives </u>

The procedure to optimize a function (find its maximum or minimum) consists in :

  •  Produce a function which depends on only one variable
  •  Compute the first derivative and set it equal to 0
  •  Find the values for the variable, called critical points
  •  Compute the second derivative
  •  Evaluate the second derivative in the critical points. If it results positive, the critical point is a minimum, if it's negative, the critical point is a maximum

We know a cylinder has a volume of 4 ft^3. The volume of a cylinder is given by

\displaystyle V=\pi r^2h

Equating it to 4

\displaystyle \pi r^2h=4

Let's solve for h

\displaystyle h=\frac{4}{\pi r^2}

A cylinder with an open-top has only one circle as the shape of the lid and has a lateral area computed as a rectangle of height h and base equal to the length of a circle. Thus, the total area of the material to make the cylinder is

\displaystyle A=\pi r^2+2\pi rh

Replacing the formula of h

\displaystyle A=\pi r^2+2\pi r \left (\frac{4}{\pi r^2}\right )

Simplifying

\displaystyle A=\pi r^2+\frac{8}{r}

We have the function of the area in terms of one variable. Now we compute the first derivative and equal it to zero

\displaystyle A'=2\pi r-\frac{8}{r^2}=0

Rearranging

\displaystyle 2\pi r=\frac{8}{r^2}

Solving for r

\displaystyle r^3=\frac{4}{\pi }

\displaystyle r=\sqrt[3]{\frac{4}{\pi }}\approx 1.084\ feet

Computing h

\displaystyle h=\frac{4}{\pi \ r^2}\approx 1.084\ feet

We can see the height and the radius are of the same size. We check if the critical point is a maximum or a minimum by computing the second derivative

\displaystyle A''=2\pi+\frac{16}{r^3}

We can see it will be always positive regardless of the value of r (assumed positive too), so the critical point is a minimum.

The minimum area is

\displaystyle A=\pi(1.084)^2+\frac{8}{1.084}

\boxed{ A=11.07\ ft^2}

8 0
3 years ago
What type of counting problem is this? How many different sequences of 3 playing cards (from a single 52-card deck) exist?
n200080 [17]

Answer:

Permutation without repetition

Step-by-step explanation:

The order of the cards matter, which makes it a permutation, but since none of the cards are exactly the same, repetition isn't allowed/possible

7 0
3 years ago
Is the number 5 is a prime or a composite
iris [78.8K]

Answer:

It’s prime

Step-by-step explanation:

Numbers between 2 and 31 are since these only have 1 and itself.

7 0
3 years ago
Read 2 more answers
Write each percent as a fraction and as a decimal to the nearest hundredth.
Nataly [62]
Each as a fraction 42/100 35/100 18/100 100/100
8 0
3 years ago
Other questions:
  • A parallelogram has side length of 9x+12 and 3x-4.what is the perimeter ?
    14·1 answer
  • A store started off the day with 32 500 items and finished with 30 824 in stock HOW MANY ITEMS SOLD (“the difference”)
    8·1 answer
  • Briana bought a total of 8 notebooks and got 16 free pens
    6·1 answer
  • Is 7.336 a rational number
    14·2 answers
  • Write the equation of the line
    12·2 answers
  • Which expression is equivalent to (2x2 +3)(x+4)
    13·1 answer
  • CAN SOMEONE HELP ME<br> OUT?
    15·1 answer
  • Write the slope-intercept equation of the line with a slope of - 7 and a y-intercept of (0.-12)
    10·1 answer
  • PLEASE HELP ME FAST
    9·1 answer
  • B) 144kg in the ratio 1 3.5​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!