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
lozanna [386]
2 years ago
6

:sobs: help, I’m giving away all my points for this.

Mathematics
2 answers:
Taya2010 [7]2 years ago
7 0

Answer:

Amphibians! In order for water-dwelling animals to adapt to life on land, many new adaptations had to take place. First, they needed to be able to breathe air instead of obtaining oxygen from water. And fins don't work well as legs! They needed to be able to move around well on land.

What group of animals begins its life in the water, but then spends most of its life on land? Amphibians! Amphibians are a group of vertebrates that has adapted to live in both water and on land. Amphibian larvae are born and live in water, and they breathe using gills. The adults live on land for part of the time and breathe both through their skin and with their lungs as their lungs are not sufficient to provide the necessary amount of oxygen.

There are approximately 6,000 species of amphibians. They have many different body types, physiologies, and habitats, ranging from tropical to subarctic regions. Frogs, toads, salamanders , newts, and caecilians are all types of amphibians.

Step-by-step explanation:

trasher [3.6K]2 years ago
6 0

Answer:

I-

lol-

I feel so bad for you- ;-;

Step-by-step explanation:

You might be interested in
Write the slope-intercept form of the equation of the line given the
svetoff [14.1K]

Answer:

y= -4x-7 or 4x+y= -7

Step-by-step explanation:

we know y=mx+c

given,

m=-4 c=-7

the equation y= -4x-7 or 4x+y= -7

thank u

5 0
3 years ago
Recall that the graph of a function f is the graph of the set of ordered pairs (x,f(x))
Simora [160]
y=f(x)+12
7 0
3 years ago
Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite
Delvig [45]

Answer:

  1. <em>0.75</em><em> liters of 5% hydrochloric acid solution </em>
  2. <em>0.25</em><em> liters of 45% hydrochloric acid solution.</em>

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

x+y=1

i.e x=1-y --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

0.05x+0.45y=1\times 0.15

i.e 5x+45y=15 -------------2

Putting value of x from equation 1 in equation 2,

\Rightarrow 5(1-y)+45y=15

\Rightarrow 5-5y+45y=15

\Rightarrow 5+40y=15

\Rightarrow 40y=15-5=10

\Rightarrow y=0.25

Putting the value of y in equation 1,

x=1-0.25=0.75

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters  of 45% hydrochloric acid solution.

4 0
3 years ago
Six added to 3 times a number is equal to 4 less than 5 times the number. What is the number?
harina [27]

Answer:

5

Step-by-step explanation:

Let the number be x.

3x+6=5x-4

3x-5x=-4-6

-2x=-10

2x=10

2x/2=10/2

x=5

The number is 5.

8 0
2 years ago
Read 2 more answers
What is 2.9 x 105 in standard notation?
Black_prince [1.1K]

Answer:

29000000000.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • What number is a factor of 16, and prime?
    9·2 answers
  • Math.....................
    15·2 answers
  • Use Stokes' Theorem to calculate . F = 5yi + 7xj + z3k; C: the counterclockwise path around the perimeter of the triangle in the
    8·1 answer
  • Is 3z-1 in standard form?
    14·1 answer
  • 8x = 2y + 5 3x = y + 7
    12·1 answer
  • a jar of natural peanut butter normally cost $4 today it's on sale for $3.60 what is the percentage of the discount
    14·2 answers
  • HELP PLEASE
    8·2 answers
  • Can i get help with this question?
    9·1 answer
  • A car service charges $3.50 for the first ½ mile, and additional mileage is charged at the rate of $0.50 for each additional 0.1
    14·1 answer
  • 4(3-x)=2(6-2x)<br> what is the answer to this equation
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!