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
Vaselesa [24]
3 years ago
14

I need help with some homework

Mathematics
2 answers:
8_murik_8 [283]3 years ago
5 0
Yes they are , since they are very common in ones body
MariettaO [177]3 years ago
3 0

Answer:

no because they are just types of blood

You might be interested in
A boat on a river travels downstream between two points, 90 mi apart, in 1 h. The return trip against the current takes 2 1 2 h.
docker41 [41]

Answer:

A)63miles per hour.

B)27 miles per hour

Step-by-step explanation:

HERE IS THE COMPLETE QUESTION

boat on a river travels downstream between two points, 90 mi apart, in 1 h. The return trip against the current takes 2 1 2 h. What is the boat's speed (in still water)??b) How fast does the current in the river flow?

Let the speed of boat in still water = V(boat)

speed of current=V(current)

To calculate speed of boat downstream, we add speed of boat in still water and speed of current. This can be expressed as

[V(boat) +V(current)]

It was stated that it takes 1hour for the

boat to travels between two points of 90 mi apart downstream.

To calculate speed of boat against current, we will substact speed of current from speed of boat in still water. This can be expressed as

[V(boat) - V(current)]

and it was stated that it takes 2 1/2 for return trip against the Current

But we know but Speed= distance/time

Then if we input the stated values we have

V(boat) + V(current)]= 90/1 ---------eqn(1)

V(boat) - V(current) = 90/2.5----------eqn(2)

Adding the equations we have

V(boat) + V(current) + [V(boat) - V(current)]= 90/2.5 + 90/1

V(boat) + V(current) + V(boat) - V(current)]=90+36

2V(boat)= 126

V(boat)=63miles per hour.

Hence, Therefore, the speed of boat in still water is 63 miles per hour.

?b) How fast does the current in the river flow?

the speed of the current in the river, we can be calculated if we input V(boat)=63miles per hour. Into eqn(1)

V(boat) + V(current)]= 90/1

63+V(current)=90

V(current)= 27 miles per hour

Hence,Therefore, the speed of current is 27 miles per hour.

7 0
3 years ago
Water pressure increases 0.44 pounds per square inch (0.44 psi) with each increase of one foot in depth below sea level. Identif
prohojiy [21]

Answer:

Depth below sea level is the independent quantity,

Water pressure is the dependent quantity

Step-by-step explanation:

An independent quantity is a variable that can be changed in an experiment. While, dependent quantity results from the independent quantity or we can say, that depends upon the independent quantity.

Here,

The water pressure increases 0.44 pounds per square inch (0.44 psi) with each increase of one foot in depth below sea level,

So, for measuring the water pressure we took depth below sea level as a variable,

⇒ Depth below sea level is the independent quantity,

While, with increasing depth by 1 foot the pressure is also increase by 0.44 pounds per square inches ⇒ pressure depends upon the depth

⇒ Water pressure is the dependent quantity.

3 0
3 years ago
Read 2 more answers
Estimate 2.8 divided by 6
marin [14]

\huge\fcolorbox{blue}{Red}{Solution→}

  • 2.8 ÷ 6 = 0.4666666.... it will continue
  • The estimate would be the round off of the Actual answer which would be 0.5 since 0.46666.. is closer to 5
3 0
2 years ago
Read 2 more answers
Is x+2x^3/x^2 a polynomial true or false
Elena L [17]

Answer:True,because there are two or more variable/numbers in there

Step-by-step explanation:

6 0
3 years ago
Through: (1, -3), slope = -4<br> A) y=-x+4 B) y = x +4<br> C) y = 4x + 1 D) y=-4x + 1
Rudik [331]

Answer:

D) y = -4x + 1

8 0
3 years ago
Other questions:
  • Which is a simplified form of the expression -3p – 4 + 4p + 8?
    6·1 answer
  • Rectangle EFGH is graphed on a coordinate plane with vertices at E(-3,5), F(6,2), G(4,-4), and H(-5,-1). Find the slopes of each
    6·1 answer
  • Who gets this I am not sure what I have to do
    12·2 answers
  • Which correctly gives the location of the point (–19, 0)?
    14·2 answers
  • who will give my answer I will mark as a brand list and follow in your back please give all the answer of the question desert 2
    12·1 answer
  • How many real roots does a quadratic equation have if the discriminant is 10
    9·1 answer
  • Quick whoever gives the right answer gets brainliest
    14·2 answers
  • Simplify the ratio 48:30.Please help me
    13·2 answers
  • Given that 5 miles is 8 km, convert 19.2 miles to km.​
    10·1 answer
  • 1. 5 3/4 + 5/6 + 2 1/2<br> 2. 3 1/3 - (5 - 1 5/6)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!