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
shutvik [7]
3 years ago
15

Select the correct answer.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0
E. 9:12...............
You might be interested in
a number of students were asked for their favorite sport 1\4 of them said tennis 1\8 basketball 1\3 football and the rest said j
Andreyy89

Answer: 7/24

Step-by-step explanation:

1/4 + 1/3 + 1/8

They all need a common denominator to be added:

6/24 + 8/24 + 3/24 =

17/24

The remaining number to 24 is the answer (17/24 + 7/24 = 24/24)

7 0
3 years ago
Circle O has a circumference of 36pi cm
iogann1982 [59]

Circumference = 2 pi r , so

36 pi = 2 pi r

r = 36 pi / 2 pi

= 18 cm  answer

8 0
3 years ago
F(x) = x2 – 7, and g(x) = 5 – x2 then g(f(-4)) =
Troyanec [42]

Step-by-step explanation:

find the value of f(-4) first

f(-4) = (-4)^2 - 7 ➡ 9 use this to find g(f(-4))

g(9) = 5 - 9^2 ➡ -76

8 0
3 years ago
Ancient slingshots were made form straps of leather that cradled a rock until it was released. One would spin the slingshot in a
Greeley [361]
We separate equation by looking at x and y projection separately. 
Let us look at the x projection first.
Motion starts with initial velocity v_0cos(45) because there is no force acting along the x-axis we don't have any acceleration along the x-axis.  Our equation would be:
x=v_0cos(45)\cdot t
Now our y equation will be a little bit more complicated. There is gravity working against our projectile and we also have to take into effect the hight from which the projectile is launched.
With all that in mind let us write the equation for y projection:
y=h+v_0sin(45)\cdot t-g \frac{t^2}{2}
The term -g \frac{t^2}{2} represents gravity and as you can see it is negative, which means gravity is pulling our projectile down. 
There is one more thing we can do. We can express initial velocity v_0 in relation to circular motion used to launch the projectile.
v_0=w\cdot r
Where r is the length of the letter used to launch the projectile, and w is angular velocity.  
If we combine our x and y equations we can get the trajectory of our projectile.
y=h+x- \frac{gx^2}{2\cdot (wr)^2cos^2(45)}
This is the equation of a parabola. If you follow this link(https://www.desmos.com/calculator/vogcuygjhs) it will take to an interactive graph where you can see how trajectory looks like depending on some of the paramaters.
8 0
3 years ago
Read 2 more answers
What is the surface area of the cube below ?
dusya [7]

Answer:

B

Step-by-step explanation:

Since a cube has 6 sides, the surface area of a cube is 6 times the area of one of the sides. Therefore:

SA=6\cdot 9^2=6\cdot 81= 486\text{ units}^2

Hope this helps!

6 0
3 years ago
Read 2 more answers
Other questions:
  • A new patio will be an irregular hexagon. The patio will have two long parallel sides and an area of 360 square feet. The area o
    14·1 answer
  • If the area of a circle is 154m2 what is the circumference.
    9·1 answer
  • What is the answer? A 1. B. -2 C. 1 , 2 D. 1, -1
    10·1 answer
  • Gilberto work 3 1/4 hours on Thursday 4 2/5 hours on Friday and 6 1/2 hours and Saturday how many hours did he work in all three
    14·1 answer
  • When converting between the mixed numbers and improper fractions, the ____always stays the same
    11·1 answer
  • Will mark brainliest! Determine whether the rectangles are similar. If so, write the similarity
    8·1 answer
  • Suppose you are doing a key exchange with John using generator 3 and prime 29. Your secret number is 4. John sends you the value
    10·1 answer
  • If x and x/4 are a pair of supplementary angles find angles​
    12·1 answer
  • 15/3x-22/4x-29/5y+2/2Y
    7·1 answer
  • Rationalize the denominator and simplify. <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B3%20%5Cdiv%202%7D%20" id="TexFormul
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!