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
soldi70 [24.7K]
4 years ago
14

Please help me! WILL MARK BRAINLIEST

Mathematics
2 answers:
dmitriy555 [2]4 years ago
8 0

Answer:

100

Step-by-step explanation:

455=94x22^2/r

455=94x484/r

455=45496/r

0.01=1/r

100=r

AURORKA [14]4 years ago
7 0

Answer:

r=45,041

Step-by-step explanation:

455=(94)(22)^2/r

455=(94)(484)/r

455=45,496/r

455r=45,496

r=45,041

You might be interested in
Solve for x 3x - 2 = 4x + 1
AlexFokin [52]

Answer:

x = -3

Step-by-step explanation:

3x - 2 = 4x + 1

Now taking 3x to right hand side of the eqn . & +1 to the left side eqn. , sign of 3x changes to -3x & +1 changes to -1 .

-2-1 = 4x - 3x

Now solving this , we get the value of x.

4x - 3x = -2 -1\\=> x = -3

5 0
4 years ago
Read 2 more answers
Ellen is currently twice as old as Maria, but in 6 years, Maria will be 2/3 as old as Ellen. How old is Ellen now?​
melomori [17]
7 this is right beacuase it is trust
3 0
2 years ago
Paperback book cost $0.50
Katen [24]
9 paperback books were purchased
3 0
3 years ago
Read 2 more answers
What is the value of z for the equation fraction 1 over 2z = −fraction 3 over 4 + fraction 1 over 4z? −3 −1 1 3
Liono4ka [1.6K]
1/2 z = -3/4 + 1/4 z
1/2 z - 1/4 z = -3/4
1/4 z = -3/4
z = (-3/4)/(1/4)
z = -3/4 x 4/1
z = -3
6 0
3 years ago
A 40-foot ladder is leaning against a wall. To use the ladder safely, the angle between the wall and the ladder must be no more
svetoff [14.1K]

Answer:

No,because the angle between the wall and the ladder is 17.45°

Step-by-step explanation:

Let's first outline the parameters in this particular question

--- the angle between the wall and ladder is 15°

--- the ladder is 40 foot tall

---the bottom of the ladder is placed 12 feet from the wall.

With the above,we can conclude that the ladder placed against the wall formed a shape that has the look of a right angle triangle, where the length if the ladder is the hypotenuse, the distance between the foot of the ladder and the wal is the adjacent, and the height of ladder against the wall is unknown.

Let's now try to find the value of the unknown (in this case,the opposite of that triangle shape formed)

Using Pythagorean theorem, where c = √(a² + b²)

(C is the hypotenuse, a and b are the adjacent and opposite respectively)

40² = 12² + x²

X² = 40² - 12²

X² = 1456

X = √1456

X = 38.2

Now to find the angle made by the wall and the ladder

Tan x = opp/adj

Tan x = 12/38.2

Tan x = 0.3141

X = tan inverse of 0.3141

X = 17.45°(the angle between the wall and the ladder)

6 0
4 years ago
Other questions:
  • Mrs. onusko made 60 cookies for a bake sale she sold 2/3 and gave 3/4 of the remaining cookies to the students working at the sa
    5·2 answers
  • 2/x=6/2 solve for x.
    9·2 answers
  • Find an explicit formula for the arithmetic sequence -5,13,31,49,
    6·1 answer
  • What is the perfect square number is the base factor is 11?
    9·1 answer
  • Two sums of money were invested at 12% and 8.5%, respectively. the amount invested at 12% was three times the amount invested at
    12·1 answer
  • 2(x-7)+13=12 for x ? N show work
    13·2 answers
  • The side lengths of different triangles are given which triangle is a right triangle?
    5·1 answer
  • 8 cm
    11·1 answer
  • Gwen takes out a loan of $400 to pay for an online course. Flat rate interest is charged at 8% p.a
    7·1 answer
  • Write the English phrase as an algebraic expression. Let the variable X represent the number
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!