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
Aliun [14]
2 years ago
11

.A teacher has 70 markers inter drawer. She

Mathematics
1 answer:
AlekseyPX2 years ago
4 0

Answer:

20%

Step-by-step explanation:

You might be interested in
PLZ HELP its Triangle Properties and where using the 45º-45º-90º Triangle Theorem and the 30º-60º-90º Triangle Theorem.
den301095 [7]

Answer:

The answer to your questions is below

Step-by-step explanation:

4.-

In a 45°-45°-90° triangle, the length of the legs are "x" and the length of the hypotenuse is x\sqrt{2}

Then, in this problem, the length of the leg is 7 then the length of the hypotenuse will be 7\sqrt{2}

5.- In a 30°-60°-90° triangle, the length of the hypotenuse is 2x, the length of the longer leg is x\sqrt{3} and the length of the shorter leg is x.

In this problem we have the length of the hypotenuse = 20 and find x.

                          2x = 20

                             x = 20/2

                             x = 10

          longer leg = xx\sqrt{3} = 10\sqrt{3}

6.- nonzero

7.- hypotenuse = 20 cm

     Find x

                         2x = 20

                           x = 20/2

                          x = 10

   Shoter leg = x = 10 cm

4 0
3 years ago
Read 2 more answers
What geometric construction is shown below
AnnyKZ [126]

Answer:

doubling the square Apex

Step-by-step explanation:

5 0
3 years ago
Write the equation in point slope form that describes the line given by the two points (2,1) and (2,-2) are on a line. then conv
Aleonysh [2.5K]

Answer: There is no way we can find the point slope form of two points together since only one point is needed for point slope.


Step-by-step explanation:  However the slope of these two points is undefined which means not even a slope-intercept equation would be possible for these two points.

Hope this helps!


5 0
2 years ago
Read 2 more answers
A ball is thrown up in the air, and it's height (in feet) as a function of time (in seconds) can be written as h(t) = -16t2 + 32
olga2289 [7]

Answer:

1) Using properties of the quadratic equation:

Here the height equation is:

h(t) = -16t^2 + 32t + 6

We can see that the leading coefficient is negative, this means that the arms of the graph will open downwards.

Then, the vertex of the quadratic equation will be the maximum.

Remember that for a general quadratic equation:

a*x^2 + b*x + c = y

the x-value of the vertex is:

x = -b/2a

Then in our case, the vertex is at:

t = -32/(2*-16) = 1

The maximum height will be the height equation evaluated in this time:

h(1) = -16*1^2 + 32*1 + 6 = 22

The maximum height is 22ft

2) Second method, using physics.

We know that an object reaches its maximum height when the velocity is equal to zero (the velocity equal to zero means that, at this point, the object stops going upwards).

If the height equation is:

h(t) = -16*t^2 + 32*t + 6

the velocity equation is the first derivation of h(t)

Remember that for a function f(x) = a*x^n

we have that:

df(x)/dx = n*a*x^(n-1)

Then:

v(t) = dh(t)/dt = 2*(-16)*t + 32 + 0

v(t) = -32*t + 32

Now we need to find the value of t such that the velocity is equal to zero:

v(t) = 0 = -32*t + 32

       32*t = 32

            t = 32/32 = 1

So the maximum height is at t = 1

(same as before)

Now we just need to evaluate the height equation in t = 1:

h(1) = -16*1^2 + 32*1 + 6 = 22

The maximum height is 22ft

4 0
3 years ago
Plz help im so confused
adelina 88 [10]

Answer:

i dont k if my explanation will help or not

Step-by-step explanation:

but it goes through the crosshairs in the 2nd quadrant at -10 on the y axis and up 6 on the x axis and then you go down 5 over 2

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the range of the function
    11·1 answer
  • 1,500,000,000 in scientific notation
    10·2 answers
  • Which experiment describes a binomial experiment?
    11·1 answer
  • Raven wants to plant 35 marigold plants, 20 zinnia plants, and 15 daylily plants in her flower garden. If she puts the same numb
    12·1 answer
  • A city block has 3 stores and a 20 foot mural on one side of the street. On the other side of the street there are 5 stores. If
    15·1 answer
  • Can someone please help me with these two please I'll appreciate it :)
    14·1 answer
  • The number of tourists visiting a city doubles every month during the two-month period beginning in Jan. 1st and ending in Feb.
    9·1 answer
  • Help please please help
    9·1 answer
  • Is what's below a complete sentence or a fragment?<br> Iris West is very happy today.
    7·2 answers
  • Help!!,!, please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!