Which element, that is essential for human life, is found in large amounts in both Earth's atmosphere and oceans?

A) helium

B) oxygen

C) silica

D) calcium

Answers

Answer 1
C)silica lol i just did this question
Answer 2

Answer:

oxygen

Step-by-step explanation:

we breath it every day


Related Questions

Please stop and help me

Answers

Answer:

f(9)= 141

Step-by-step explanation:

f(x)=-[tex]x^{2}[/tex]+5x+15

replace x's with 9f(9)=-9^2+5(9)+15solvef(9)=141

Can someone help me please!!!

Answers

Answer:

Step-by-step explanation:

(0,8)(8,0)

find slope

m=-1

b=8

y=-x+8

Answer:

y= -1x+8

Step-by-step explanation:

slope is -1/1 and your y intercept is (0,8)

Savannah had 400400400 chocolate chips. She saved xxx chips for a garnish, and mixed the rest of the chocolate chips evenly into 333 pans of brownies.
How many chocolate chips were in each pan of brownies?

Answers

Answer:

(400-x)/3

Step-by-step explanation:

Answer:

(400-x)/3

Step-by-step explanation:

Khan Academy

evaluate the exponential expression
(2x5)^2

Answers

Answer:

[tex]100[/tex]

Step-by-step explanation:

[tex](2*5)^2[/tex]

First we need to start with the parentheses:

[tex](2*5)=10[/tex]

Now we have to do the power(2):

[tex]10^2\\10*10=100[/tex]

100 is your final answer.

1
HELP!!Extra Credit: Use trig ratios twice to find the value of x in the figure below: (Round to the nearest tenth)
500/650
х
41

Answers

Answer:

x = 73.8

Step-by-step explanation:

to find the blue line:

tan(50) = 41/a

a = 41/tan(50)

a = 34.4 to 1 decimal place

to find x:

tan(65) = x/34.4

x = 34.4tan(65)

x = 73.8 to 1 decimal place

HELP ASAP I WILL GIVE YOU BRAINLYEST

Rachel estimates the weight of her dog to be 35 pounds. The actual weight of the dog is 37.5 pounds. What is the percent error of Rachel's estimate ? Round to the nearest tenth if necessary

Answers

Answer:

the correct answer is 6.6666666666667% error but since there is no selection for that I would assume it would be the 6.4%

Step-by-step explanation:

3/12 and 5/x are
equivalent ratios. Solve for
X. Pls help asap

Answers

Answer:

3/12  and 5/x

12 times 5 is 60 so 3 times 20 shall be 60

3/12 = 5/20

:)

a stack of 200 file folders is 5.125 inches tall what is the thickness of each folder?

Answers

Answer:

divide 5.125 by 1

Step-by-step explanation:

done bye

a stack of 200 file folders is 5.125 inches tall what is the thickness of each folder?

0.025625

What is the COMMON DIFFERENCE of the following sequence: 10, 0, -10,
-20.... (Hint: USE ONLY THE NUMBER IN YOUR ANSWER) *

Answers

10 is your common difference

Please respond ASAP! I don't understand

Answers

Answer:

52%

Step-by-step explanation:

this is super easy:

13 --------> 25

x -----------> 100

cross multiply.

13 x 100- 1300

1300 divided by 25 = 52%

Find the missing section. Answers must be in fraction form.

Answers

Answer:

[tex]\frac{1}{10}[/tex]

Step-by-step explanation:

We have a circle that is split in three sections, two of which we know and we are asked to find the third missing section.

For the circle, we know that 4/5 and 1/10 is fit. Now we need the last one, to solve, we need to get the same denominator and see how much is missing.

Since 1/10 is our highest denominator, let's change 4/5 to have 10 as a denominator. Which would be through multiplying 5 to get 10.

What times 5 equals 10?

2

Now multiply both numerator and denominator by 2 to get our portion.

[tex]\frac{4*2}{5*2}[/tex]

[tex]\frac{8}{10}[/tex]

Now we have the same denominator, let's add our two fractions and see how much we have left.

8/10 + 1/10

9/10

We have 1/10 missing, therefore 1/10 is the answer.

1. 48 students to 4 teachers Your answer​

Answers

Answer:

12:1

Step-by-step explanation:

you have to simplify it

-4e - 9=19 find e for me

Answers

Answer:

-7

Step-by-step explanation:

Rearrange for e

answer for brainlist

Answers

I’m pretty sure it rational, whole, and real number

write the equation of the line with a slope of 8, through the point (7,1)

Answers

Answer:

Y = 8x - 55

Step-by-step explanation:

j^2+5.10
question: if j=2 the value of the following expression is 90.
TRUE OR FALSE?

Answers

It’s wrong it doesn’t add up to 90

Can someone please help me!!!

Answers

Answer:

x= 4.5

Step-by-step explanation:

P= 2(l + w)

36 = 2(4x-6)+12

36 = 8x - 12 +12

x = 36/8

=4.5

Answer:

Equation: 4x - 6 = 6            x = 3

Step-by-step explanation:

A rectangle is a parallelogram, which means that opposite sides are parallel.  This means that both of the short sides equal 12.  12 plus 12 is 24, so substract 24 from 36 to get 12.  This means that the sum of the long sides are 12; half of 12 is 6 so that is the length of one of the sides.  This means that you can set the equation 4x - 6 equal to 6.  Add 6 to both sides to get 4x = 12, then divide both sides by 4 to get x = 3.  I think your equation should be 4x - 6 = 6, and x equals 3.  

Sorry if I'm wrong, if I'm right then that picture of the rectangle is really misleading.  

8. Find the area of the square.
79.54
90.51
128
64
256

Answers

Answer:

c

Step-by-step explanation:

PLS I NEED HELP ASAP I DONT HAVE TIME IT ALSO DETECTS IF IT RIGHT OR WRONG.

Answers

Answer:

D = 272 ft

Step-by-step explanation:  hope this helps. pls mark me brainliest

A female cheetah left her cubs to hunt for food. She sprinted 30 m away from her den in two seconds. Next, she turned around and traveled 10 meters back toward her den in three seconds. She suddenly stopped and listened intently for 1 second. Then, she traveled 40 meters away from her den in four seconds.

What is her average velocity in m/s?

Answers

Answer:

Step-by-step explanation:

total distance = 30+10+40 = 80 meters

time = 2+3+4 = 9 seconds

average velocity = 80/9 = 8 8/9 meters per second.

Line AB and line BC form a right angle at point B. If A = (-3, -1) and B + (4, 4), what is the equation of line BC?

A.) x + 3y = 16
B.) 2x + y = 12
C.) -7x - 5y = -48
D.) 7x - 5y = 48

Answers

Answer:

C.) -7x - 5y = -48

Step-by-step explanation:

slope AB = (y2 - y1)/(x2-x1)

= {4-(-1)}/{4-(-3)} = 4+1/4+3 = 5/7

slope of BC = -1 ÷ 5/7 = -1 × 7/5 = -7/5

taking -7x - 5y = -48

-5y = 7x -48

y = 7x/-5 - 48

y = -7/5x -48

Please help me with this!

Answers

Answer:

10 is real, rational, integer, whole, natural

5/6 is real, rational

sqrt of 24 is real, irrational

0 is real, rational, integer, whole

sqrt 81 is real, rational, integer, whole, natural

Step-by-step explanation:

Classification

HELP PLZZZZZZZZZZZZZ ILL GIVE U A JUICE BOX

Answers

Answer:

c)

Step-by-step explanation:

[tex]\frac{1}{2}[/tex](12*g) - h = [tex]\frac{1}{2}[/tex](12 * [tex]\frac{1}{4}[/tex]) - [tex]\frac{1}{2}[/tex] = 1/2 * 3 - 1/2 = 3/2 - 1/2 = 1

On Monday the high was 60°F on Tuesday that I was 18° more how much did the high increase from Monday to Tuesday

Answers

42 degrees
Hope that helps

HEY THERE! PLEASE ANSWER THE MATH QUESTION IN THE PHOTO! THE CORRECT ANSWER WILL BE MARKED AS BRAINLIEST ,GET POINTS AND I WILL ALSO FOLLOW YOU! THANKS! (if you can explain your answer)
xoxo

Answers

Answer:

a) 1/10

b) 2/10

c) 8/10

Answer:

a) 1/10

b) 2/10

c) 8/10

:))

A softball backstop that is 10 feet high casts an 8-foot shadow at the same time a light pole casts a 20-foot shadow. The height of the flagpole is about how many feet??

Answers

I'm just getting points

Step-by-step explanation:

just getting points

You can buy 2 tickets to school carnival for $9 total.
How many tickets can you buy for $27?

Answers

Answer:

6

Step-by-step explanation:

pls brainliest

9/2=4.5

27/4.5=6

i have 5 minuets please answer (image included)

Answers

Answer:

The second one !!

Step-by-step explanation:

You always start from the origin... (0, 0) !! From the bottom of that function, from the origin, you would move to the right 1, down 4 in order to get where the graph is in the picture !!

i hope this made sense... have a good day !

Find tan A for the triangle below.

a 1.5
b. 0.667
C. 0.832
d. 1.202

Answers

Answer:

B

Step-by-step explanation:

on edge

Answer:b

Step-by-step explanation:

Which set of ordered pairs represents a function? ​

Answers

You’re correct answer is the first
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