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
Leno4ka [110]
1 year ago
5

For what value of x is r(x)= -21??

Mathematics
1 answer:
Naily [24]1 year ago
4 0

Answer:

Rx= - 21

Rx/r= - 21/r

X=-21/r

You might be interested in
Write an equation in point-slope form for a line passes through the point (8,-7) and has a slope of 5/4.
fomenos

Answer:

y+7=5/4(x-8)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-7)=5/4(x-8)

y+7=5/4(x-8)

8 0
2 years ago
Please help me with this sum
mihalych1998 [28]
The answer is 1
6 -
6
8 0
3 years ago
Find the two square roots of the number 169
Mazyrski [523]

One root belonged to an old tree next to the road, and the other is part of a small tree.

4 0
3 years ago
If I have this sequence 2, 4, 6, ... I can describe the rule as
Andrews [41]

Answer:

I believe your rule would be (The rule is add 3)

Step-by-step explanation:

If you have -9 and you get to -6 that means you added an interval of 3

-9,-6,-3,0,3 is how it would continue

(The rule is add 3)

3 0
3 years ago
II The small capillaries in the lungs are in close contact with the alveoli. A red blood cell takes up oxygen during the 0.5s th
dangina [55]

The diffusion time of the red blood cell to take oxygen through the membrane is 25uS.

The small capillaries in the lungs are in close contact and it takes a red blood cell 0.5 seconds to squeeze through the capillary.

The diffusion time for the oxygen across the 1 um thick membrane separating the air is given by,

t = x²/2D

Where,

t is the diffusion time,

x is the thickness of the membrane,

D is the diffusion coefficient.

Putting values,

t = (1 x 10⁻⁹)²/2 x 2 x 10⁻¹¹

t = 10⁻⁷/4

t = 25 x 10⁻⁹ seconds.

t = 25 uS.

so, the diffusion time is 25uS.

To know more about Diffusion, visit,

brainly.com/question/94094

#SPJ4

3 0
1 year ago
Other questions:
  • May someone plz help me
    5·2 answers
  • Solve the system of equations:<br> y = x-4<br> -2x + y = 18
    10·1 answer
  • A square is always a rectangle. <br> True<br> False
    7·1 answer
  • Find the perimeter of the square shown below:<br> Area = 49 cm2 plz!! It’s due in 5 minutes!!!!!!!
    9·1 answer
  • the cost of 5 oranges and 3 apples is 43 rupees and the cost of 2 oranges and 4 apples is 34 rupees. find the cost of an orange
    9·1 answer
  • We have 9 pens, of which 5 are green ink, 3 are red ink, and 1 is black. If we put the pens in a line, how many arrangements are
    12·1 answer
  • What is the slope and point
    10·1 answer
  • What is the 150th term in this sequence? 17, 162, 16, 15....​
    5·1 answer
  • Every day, Kim practices volleyball and clarinet. Each day, she practices volleyball for 2.5 hours. If after 8 days she practice
    7·1 answer
  • Solve the following inequality <br><br> 2x + 1 &lt; 5
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!