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
9966 [12]
3 years ago
12

I need help please asap

Mathematics
1 answer:
avanturin [10]3 years ago
6 0
A direct variation means that y=kx, where k is constant.
-12=k(-4)
3=k

Plug in the known y value
24=3x
8=x

Final answer: 8
You might be interested in
Write <br> 10/17 as a decimal and round to the nearest hundredth.
Leni [432]

the answer to that is 0.59

4 0
4 years ago
Read 2 more answers
A ball is thrown into the air and its position is given by h ( t ) = − 6.3 t 2 + 53 t + 24 where h is the height of the ball in
nordsb [41]

Answer:

h'(t) = -12.6 t +53

Now we can set up the derivate equal to 0 and we have:

-12.6 t +53 = 0

And solving for t we got:

t = \frac{53}{12.6}= 4.206

For the second derivate respect the time we got:

h''(t) = -12.6

So then we can conclude that t = 4.206 is a maximum for the function.

And the corresponding height would be:

h(t=4.206) = -6.3(4.206)^2 +53*4.206+24= 135.468 ft

So the maximum occurs at t = 4.206 s and with a height of 135.468 m

Step-by-step explanation:

For this case we have the following function:

h(t) = -6.3t^2 +53 t+24

In order to maximize this function we need to take the first derivate respect the time and we have:

h'(t) = -12.6 t +53

Now we can set up the derivate equal to 0 and we have:

-12.6 t +53 = 0

And solving for t we got:

t = \frac{53}{12.6}= 4.206

For the second derivate respect the time we got:

h''(t) = -12.6

So then we can conclude that t = 4.206 is a maximum for the function.

And the corresponding height would be:

h(t=4.206) = -6.3(4.206)^2 +53*4.206+24= 135.468 ft

So the maximum occurs at t = 4.206 s and with a height of 135.468 m

8 0
3 years ago
A rhombus has sides 11cm long the shorter diagonal of the rhombus is 8cm long find the size of the smaller angles of the rhombus
ZanzabumX [31]

Answer:

42.64°

Step-by-step explanation:

Note: A rhombus has all its sides equal, its opposite angle are equal, its  has bigger and smaller diagonal, diagonal bisect the angles and diagonal bisect each other.

From the diagram attached,

sinθ = opposite/adjacent

sinθ  = 4/11

θ = sin⁻¹(4/11)

θ = 21.32

Therefore, from the diagram,

The smaller angle of the rhombus = 2θ

The smaller angle of the rhombus = (2×21.32)

The smaller angle of the rhombus = 42.64°

8 0
3 years ago
Find radius of a hemisphere given volume of 144 cm³
marysya [2.9K]

Answer:

The radius is 4.097396898

Step-by-step explanation:

A hemisphere is 1/2 of a sphere so the volume is 1/2 of the volume

V = 1/2 ( 4/3 pi r^3)

   = 2/3 pi r^3

144 = 2/3 pi r^3

Multiply each side by 3/2

3/2 *144 = 3/2 * 2/3 pi r^3

216 = pi r^3

Divide each side by pi

216/ pi =   pi r^3/pi

68.78980892 = r^3

Take the cube root of each side

(68.78980892 )^1/3= (r^3)^1/3

4.097396898 = r

The radius is 4.097396898

8 0
3 years ago
If I have a 92,70,41 what's my average grade?
Alexandra [31]

Answer: Around 67%

Step-by-step explanation:

92+70+41=203

203/3=67 2/3

Around 67%

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to this equation x-9=17
    12·1 answer
  • Please help asap <br>Thank you​
    15·2 answers
  • You're reproducing a 5 cm x 5 cm picture on a wall at a ratio of 1/3. How large is the surface you're reproducing it on?
    9·1 answer
  • Please answer this quickly! Find the next two numbers in the pattern. 1875, -375,75,?,?
    10·1 answer
  • At a movie theater, the size of popcorn bags decreased by 20%.
    7·2 answers
  • Please help, I don't know how to get the answer.
    8·1 answer
  • What is an equation that has a solution of -2 <br> ,3
    5·1 answer
  • A $30 shirt is 50% off. What is the new price?
    11·2 answers
  • Can someone help me?
    14·1 answer
  • which type of transformation preserves the symmetry of an even function f(x) but does not preserve the symmetry of an odd functi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!