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
beks73 [17]
3 years ago
10

Question 4:

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
8 0

Answer:

a. Jacques will be 46.4m below the surface and his assistant will be 78.1m below the surface.

b. 10 minutes

c. 6 minutes

Step-by-step explanation:

Let the equation for Justin's motion be J(x)=-13.9-7.5x (where J(x) is his distance from the surface in metres and x is time in minutes), because he starts off 13.9m below the surface and descends 7.5m every minutes.

Let the equation for the assistant be a(x)=-97.3=+6.4x (where a(x) is his distance from the surface in metres and x is time in minutes), because he starts off 97.3m below the surface and ascends 6.4m every minutes.

a.

J(x)=-13.9-7.5x

J(3)=-13.9-7.5(3)=-13.9-22.5=-36.4

a(x)=-97.3=+6.4x

a(3)=-97.3+6.4(3)=-97.3+19.2=-78.1

b.

a(x)=-97.3=+6.4x

-33.3=-97.3=+6.4x

64=6.4x

x=10

c.

when divers are at the same depth, J(x)=a(x)

J(x)=a(x)

-13.9-7.5x=-97.3=+6.4x

83.4=13.9x

x=6

You might be interested in
Can someone help me please
VashaNatasha [74]

Answer:

TQ = 10\sqrt{2}

Step-by-step explanation:

The diagonal divides the square into 2 right triangles with the diagonal being the hypotenuse.

Using Pythagoras' identity in triangle TPQ

TQ² = PQ² + PT²

TQ² = 10² + 10² = 100 + 100 = 200 ( take square root of both sides )

TQ = \sqrt{200} = \sqrt{100(2)} = \sqrt{100} × \sqrt{2} = 10\sqrt{2}

7 0
2 years ago
Help please someone like....
Bas_tet [7]

Answer:

400cm²

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The length of a rectangle is 5m longer than the width. If the perimeter of the rectangle is 58 m, find its length and width
LekaFEV [45]

Answer:

L = 17 m W = 12 m

Step-by-step explanation:

Here is the answer.

3 0
3 years ago
Raisins (x) that sell for $1.60 per pound are mixed with chocolate chips (y) that sell for $2.45 per pound to make 17 pounds of
Rasek [7]

Answer: B) x + y = 17

1.60x + 2.45y = 34

Step-by-step explanation:

Cost of x = $1.60 per pound

Cost of y = $2.45 per pound

Total pounds of x and y = 17

Cost per pound of mixture = $2

Total number of pounds of the mixture :

x + y = 17

Since the cost per pound of the mixture = 2

Hence ;

(Cost of x * number of pounds of x) + (Cost of y * number of pounds of y)

(1.60 * x) + (2.45 * y) = (cost per pound of mixture * total number of pounds of the mixture)

1.60x + 2.45y = 2 * 17

1.60x + 2.45y = 34

3 0
3 years ago
The measure of an angle is two times the measure of it complementary angle. What is the measure of each angle
Len [333]
One of them is 30 degrees and the other is 60 degrees
6 0
2 years ago
Other questions:
  • What is the greatest common factor of 16 and 48?
    5·2 answers
  • Find tan A<br><br> Help please
    14·1 answer
  • What is the length of side a? When one side is 16 and the other side 7
    11·1 answer
  • PLEASE HELP ME!! iv'e tried to do some, but i dont think it is right
    5·1 answer
  • Write an inequality for the situation to pay a child's price you must be 12 years or younger why is there not only one correct a
    11·1 answer
  • At east school, each of the 45 classrooms has an average of 22 students. At west school, each of the 42 classrooms has an averag
    9·2 answers
  • 64978256+8734965+709685+1<br><br> Who ever answers correctly first gets Brainliest!!!!
    13·1 answer
  • Find the perimeter of the figure.
    10·2 answers
  • How do i write a polynomial functions that has roots 3 and 7
    5·1 answer
  • Help me plz will give BRIANLY
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!