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
Galina-37 [17]
3 years ago
12

Help!!!!!!!!! i’m confused

Mathematics
2 answers:
Fofino [41]3 years ago
5 0
C is the hypotenuse, which is 10.

a^2 + b^2= c^2
(6)^2 + (8)^2= (10)^2

ANSWER: B) 6^2 + 8^2= 10^2

Hope this helps! :)
love history [14]3 years ago
3 0
B; a=6 b=8 c=10 ; c is always the hypotenuse
You might be interested in
A man earns $ 1200 and spends $ 450 per month. Find the ratio of his saving to his income.
nasty-shy [4]

income =$1200

expenditure=$450

saving=$1200-$450

=$750

ratio of income to expenditure is 1200:450

=8:3

ratio of savings to income is 750:1200

=5:8

hope it helps

mark the BRAINLIEST plzz

5 0
2 years ago
Y=2x+5 and y=3x+11 solve by substitution.
kondaur [170]

Answer:

Answer: x= -6 and y= -7

Step-by-step explanation:

Substitute 2x+5 for y in y=3x+11:

y=3x+11

2x+5=3x+11

2x+5+−3x=3x+11+−3x(Add -3x to both sides)

−x+5=11

−x+5+−5=11+−5(Add -5 to both sides)

−x=6

−x−1=6−1(Divide both sides by -1)

x=−6

Step: Substitute −6 for x in y=2x+5:

y=2x+5

y=(2)(−6)+5

y=−7(Simplify both sides of the equation)

-Source: MathPapa

6 0
3 years ago
A.step 1<br> B.step 2<br> C.step 3<br> D.step 4<br><br> Please help
Marizza181 [45]

Answer:

Step 3

Step-by-step explanation:

7 0
2 years ago
A uniform bar of mass $m$ and length $l$ is suspended on a frictionless hinge. A horizontally launched blob of clay of mass $m$
Irina-Kira [14]

Answer:

conservation of angular momentum ; conservation of energy

Step-by-step explanation:

The complete Question is given as follows:

" A uniform bar of mass (m) and length (L) is suspended on a frictionless hinge. A horizontally launched blob of clay of mass (m) strikes the bottom end of the bar and sticks to it. After that, the bar swings upward. What is the minimum initial speed (v) of the blob of clay that would enable the rod to swing a full circle? Which concepts/laws would be most helpful in solving this problem? Select the best answer from the options below.  "

CHOICES

kinematics of rotational motion; conservation of energy

conservation of momentum ; conservation of energy

conservation of angular momentum ; conservation of momentum

conservation of angular momentum ; conservation of energy

conservation of energy ; Newton's laws

Newton's laws ; conservation of angular momentum

conservation of angular momentum ; kinematics of rotational motion

Newton's laws, kinematics of rotational motion

Solution:

- We will apply the conservation of angular momentum M. Note the linear momentum does not remains conserved as the rod stores some energy as the clay sticks to the rod:

                                       M_i = M_f

- Initially the rod was at rest and clay had velocity of v, then M_i can be written as:

                                       M_i = m*v*L

- The final momentum is the combined effect of clay and rod:

                                       M_f = ( m*L^2 + I_rod )*w

- Where w is the angular speed of the rod after impact. And I_rod is the moment of inertia of rod.

                                      I_rod = mL^2 / 3

                                      M_f = ( m*L^2 + m*L^2 /3 )*w = (4*m*L^2 / 3)*w

- Formulate w in terms of initial velocity v:

                                     m*v*L = (4*m*L^2 / 3)*w

                                      0.75*v / L = w

- The minimum amount of velocity required would be enough to complete half of a circle.

- Apply conservation of Energy principle:

                                     T_i + V_i = T_f + V_f

Where, T is the kinetic energy soon after impact and at top most position.

            Assuming, T_f = 0 , for minimum velocity required to complete on circle.

             T_i = 0.5*I_combined*w^2

Where, I_combined = I_clay + I_rod = 4*m*L^2 / 3

And w = 0.75*v / L:

             T_i = 0.5*[4*m*L^2 / 3]*[0.75*v / L]^2

             T_i = 0.5*[m]*[v^2]

Also, V is the potential energy of the clay plus rod system soon after impact and at top most point.

             V_i = 0 ( Datum )

             V_f = V_rod + V_clay

             V_f = m*g*L + m*g*2L = 3*m*g*L

- Plug in the expressions in the energy balance and we get:

                              0.5*[m]*[v^2] + 0 = 0 + 3*m*g*L

                                      v_min = sqrt ( 6*g*L)

- So the choices used were:

conservation of angular momentum ; conservation of energy

                 

             

6 0
3 years ago
Solve for x:<br> 3x – 2(6 - x) = 7x + 2(5 + x) – 6
MAVERICK [17]

Answer:

-4

Step-by-step explanation:

3x-2(6-x)=7x+2(5+x)-6

First, distribute.

3x+ −12+ 2x = 7x + 10 + 2x −6

Combine like terms on each side.

5x − 12= 9x + 4

To solve for x, pick a side to solve. I will solve the right x.

5x - 12 = 9x + 4

-5x         -5x

-12 = 4x + 4

Subtract 4 to isolate the variable.

-16 = 4x

Divide 4.

-4 = x

4 0
2 years ago
Other questions:
  • Joe collect stamps he decided to sell half of his stamp collection to Frank and use the money to buy 10 new Sam's Joe now has 26
    11·1 answer
  • Will give brainlyest HELPP
    14·1 answer
  • Melissa launches a rocket from a 3-meter-tall platform. The height, h, of the rocket, in meters, can be modeled by the given gra
    6·1 answer
  • I need help with math
    13·1 answer
  • Using a table of values, determine the solution to the equation below to the nearest fourth of a unit.
    9·1 answer
  • Two side lengths of a triangle measure 3 and 9. What is the possible range for the third side length?​helppp
    10·1 answer
  • Which of the following is the graph of f(x) = x2 + 3x − 4?
    10·2 answers
  • Let f(x) = 5x – 4 and g(x) = x² – 1. Find each value.
    10·1 answer
  • Mary spent a total of $353.86 for a party. She spent $200.51 on food, plus an additional $30.67 for each hour of the party. How
    13·1 answer
  • If you split the circle into 4 equal parts, how many degrees will each piece be? Show your work.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!