Which elements make up a water molecule?

A) hydrogen and nitrogen
B)oxygen and nitrogen
C) oxygen and carbon
D) hydrogen and oxygen

Answers

Answer 1

Answer:

D) Hydrogen and Oxygen

Step-by-step explanation:

Answer 2

Answer:

The answer is D

Step-by-step explanation:

Water is made of both hydrogen and oxygen


Related Questions

if m=4,then what two numbers can m equal?

Answers

The answer is 2+2 I think
m can have a value of sum of infinite digits, for eg, 8 & -4, 3 &1, 63 and -59, etc.

Need help please hurry

Answers

9514 1404 393

Answer:

  x = 20°

Step-by-step explanation:

For questions like this, it is helpful to remember that an exterior angle is equal to the sum of the remote interior angles.

  110° = 2x + 70°

  40° = 2x

  20° = x

_____

Similarly, ...

  y = x + 70° = 20° +70°

  y = 90°

A church has 10 bells in its bell tower. Before each church service 7 bells are rung in sequence. No bell is rung more than once. How many possible sequences are there?

Answers

Answer:

3 Because there are only three bells that aren't being run there for three additional ways that the bells could be rung

Please help due soon.

Answers

Step-by-step explanation:

plzz mark me as brainlest sorry if I dont know the answer I'm just 10 tho

Answer: 1: (2/v) 2: (3/m^4) 3: (4/x^4) 4: (1/k^3)

Step-by-step explanation:

When there is a negative exponent, the variable moves from the numerator (top) to the denominator (bottom), which gets rid of the negative sign in front of the exponent. MOVE ONLY THE VARIABLE AND CORRECT EXPONENT!!

What is the meaning of ‘!’ In math and how do I use it?

Answers

In math, the '!' sign are used in factorial. Factorial is multiplications on numbers itself and with another numbers that less than the number itself. Example :

5! =5x4x3x2x1 or nx(n-1)x(n-2)...2x1

Solve for x and select your answer from the multiple choices.​

Answers

Answer:

x=3

Step-by-step explanation:

3x+5=14

   -5  -5

3x=9

/3  /3

x=3

Answer:

x=3

Step-by-step explanation:

...........................

100
1
5
1-10
15

5
51

Answers

Answer:

whats the question?

Step-by-step explanation:

A community service club has 12 seventh-graders and 12 eight-graders. The name of each student is put in a hat, and a name is drawn at random. Which number or number range describes the probability that the student selected is a seventh-grader

Answers

Answer:

1/2

Step-by-step explanation:

12 out of 24 is 1/2

please help (multiple choice question)

Answers

Answer:

5

Step-by-step explanation:

Since both triangles are similar then see if two dimension match up, so 9 is like 45, therefore, they multiplied 9 x 5 to get 45, so the scale factor (number you multiply to get the new value) is 5, since it grew 5 times

Use the discriminant to determine the number of solutions and types of solutions for the quadratic equation, below. Show your work when calculating the discriminant for full credit. Then answer all four questions in the box. (6 points)
a^2-5a=6

Answers

Answer:

6

Step-by-step explanation:

A cyclist accelerates from 10 ms to 50 ms in 8 second what is the acceleration

Help plz

Answers

Answer:

5m/s^2

Step-by-step explanation:

Acceleration = Change in velocity/time.

= 50 - 10

------------

8

= 40/8

= 5

Answer:

5 m/s²

Step-by-step explanation:

v = 50 m/s

u = 10 m/s

t = 8 s

[tex]a = \frac{v - u}{t} [/tex]

a = (50 - 10) ÷ 8

a = 40 ÷ 8

a = 5 m/s²

3/5a-1/2a=9/2

please help solve
for a and show work !!

Answers

Answer:

a = 45

Step-by-step explanation:

Start by changing the fractions so they share a common denominator to combine like-terms:

6/10a - 5/10a = 9/2

1/10a = 9/2

Multiply both sides by 10 to isolate a.

a = 90/2

a = 45

Which equation represents circle A?
(x – 4)2 + (y + 5)2 = 12
(x + 4)2 + (y – 5)2 = 12
(x – 4)2 + (y + 5)2 = 36
(x + 4)2 + (y – 5)2 = 36

Answers

Answer:

c on edge

Step-by-step explanation:

just took the quiz

The equation representing the circle A is (x – 4)² + (y + 5)² = 36.

What is circle?

A circle is a spherical shape without boundaries or edges. A circle is a closed, curved object with two dimensions in geometry.

The general equation of circle is given by equation

( x - h )² + ( y - k )² = r²

Where,  ( h, k ) is the centre and 'r' is the radius.

As, the circle has a shift of 4 units on the +x axis.

The circle has a shift of the 5 units on the -y axis.

As, the circle has a radius of 6 units from the graph.

So, (h,k) = (4, -5).

Substitute the values of (h,k) in the general equation of the circle.

( x - 4 )² + ( y - (-5) )² = 6²

( x - 4 )² + ( y + 5 )² = 36

Therefore, the equation of circle becomes ( x - 4 )² + ( y + 5 )² = 36.

To know more about the general form of equation of circle, here

https://brainly.com/question/1506955

#SPJ2

The total cost of C of gasoline is $3.00 times the number of gallond g. Fill in the table, complete the graph, write thè equation, and predict the cost of gasoline given the number of gallons.​

Answers

Answer:

The equation is 3g= c

Step-by-step explanation:

this is how much 11 gallons will cost 3 x 11= $33

1 gallon costs 3$

2 gallons cost 6$

3 gallons cost 9$

4 gallons cost 12$

5 gallons cost 15$

6 gallons cost 18$

7 gallons cost 21$

8 gallons cost 24$

Carter and his children went into a bakery where they sell cupcakes for $3 each and
cookies for $0.50 each. Carter has $35 to spend and must buy a minimum of 15
cupcakes and cookies altogether. If x represents the number of cupcakes purchased
and y represents the number of cookies purchased, write and solve a system of
inequalities graphically and determine one possible solution. (I need 2 inequality’s)

Answers

Answer:
3x + 0.5y = 35
x + y >/= 15

Possible solution: (11, 4)
11 cupcakes, 4 cookies
____________
Cupcakes = x
Cookies = y

Cupcakes are $3 each —> 3x
Cookies are $0.50 each —> 0.5y

$35 to spend: less than or equal to =
3x + 0.5y = 35

Minimum of 15: greater than or equal to >/= 15

x + y >/= 15
____________

3x + 0.5y = 35
x + y >/= 15

Solve second for y:
y >/= 15 - x

Substitute into first:
3x + 0.5(15 - x) = 35
3x + 7.5 - 0.5x = 35

Combine like terms
2.5x + 7.5 = 35

Subtract 7.5
2.5x = 27.5

Divide by 2.5
x is less than or equal to 11

So y is less than or equal to 4

Check:
4 + 11 = 15 :)

3*11 + 0.5*4 = 35
33 + 2 = 35
35 = 35 :)

Factor.

3y^2 + 5y - 2

If you can, please give me an explanation, I'm confused about how to do this.

(Example of how the answer would look like: (5x+3)(x+1))

Answers

I’m doing factoring right now so no problem!!
3y^2+5y-2
3 is a prime number so to split it up you would put 3y in one parentheses and y in the other. at this point it will look like this
(3y )(y )
now, you need to figure out what your signs would be (+ or -) because the second sign in the equation is a negative, your signs would be one + and one - you can decide where to put them until you figure out your two factors. in this case you need to figure out 2 numbers that multiply to 5 and add up to 2. you might think this is impossible, but since the 3 is there, one of those numbers can be multiplied by three. this is your answer:
(3y-1)(y+2)
comment on the answer if you have any more questions. mark me brainliest if you can!!

PlEaSe PlEaSe HeLp!!!!!!!!!!!!!!!!!

Answers

i don’t think so, not sure though..
i’m not sure i just want some points

MATH!


-4=2x+16

x=____?

Answers

Answer: x=-10

Step-by-step explanation: hope this help

Josh was able to type 496 words in 8 minutes. How many words can he type in 35 minutes?

Answers

he can type 2,170 words in 35 minutes.

first you need to divide 496 by 8 to find the unit rate. you take that number and multiply it by 35

Answer:

2170 words

Step-by-step explanation:

If we are assuming words and minutes are directly proportional to each other, we can say that w (words) = k (constant variable) x t (time in mins).

NOTE: directly proportional means that as one variable increases, the other variable increases too (or if one decreases, the other also decreases).

K is the constant variable, which we must work out to find out any other time. If you rearrange the formula, it shows that k can be calculated by doing w/t. We have a set of values we can use to calculate k which are given in the question. So if we use this formula to calculate k, then:

k= w/t

k= 496/8

k= 62

Now we know the constant variable is 62. So, we go back to our equation but now we must find how many words. We now have our k value and our value for t. So, now we substitute:

w=kt

w= 62 x 35

w= 2170

How do I find the missing side length for 30 - 60 - 90 method as a radical in simplest form? ​

Answers

Answer:

Step-by-step explanation:

see the image below

Step-by-step explanation:

The side that is adjacent to 60 degree and 90 degree is the shortest side.

If u know the hypoutnese you can divide it by 2 to find the shortest side. for example if the hypotenuse is 10 then the shortest side is 5

If you know the other leg you can simply just remove the entire radical and just keep the whole number to find the length of the shortest side.

The side that his the adjacent to the 30 degree and 90 degree angle is the second longest side of the triangle.

If u know the shortest side, just multiply the radical

[tex] \sqrt{3} [/tex]

to the whole number.

If you know the hypotunese, divide the hypotenuse by 2 and then multiply the radical to find the length of the second shortest side

Finally, the hypotunese is the largest side. It is the slanted side length that is adjacent to the 30 and 60 triangle.

If you know the shortest side, just multiply the side length by 2 to get the hypotenuse.

If you know the other leg, remove the radical and keep the who the number and multiply the whole number by 2.

E.x if the second longest side length is

[tex]5 \sqrt{3} [/tex]

Remove the radical so it becomes

[tex]5[/tex]

then multiply it by two to find the hypotunese.

[tex]5 \times 2 = 10[/tex]

What is the square root of -1

A. -i
B. i
C. -1
D.1

Answers

Answer:

its i

Step-by-step explanation:

Square root of the positive value of 1 is either a positive value of 1 or negative value of 1.1 x 1 = 1 and -1 x -1 = 1.

3/7=x/35
round to the nearest hundredth if needed.

Answers

Answer:

X=15

Step-by-step explanation:

3/7=x/35

105=7x

7x=105

x=15

The answer is x= 15...

1) Mike's sister, Kellie, is 4 years older than he is. Let m be Mike's age and let k be Kellie's age. ) Complete the table to show Mike's age and Kellie's age in different years. compete the table to show Mike's age and Kellie's age in different years. ​

Answers

The table be like

Mike age        kellie age

10                     14

15                     19

20                    24

25                    29

Calculation of the ages:

Since Mike's sister, Kellie, is 4 years older than he is

And, Let m be Mike's age and let k be Kellie's age.

So here the equation be like

k = m + 4

Based on this we can compute the ages and fill the table

learn more about table here: https://brainly.com/question/16299322

3. What is the perimeter of the figure below?

Answers

Answer:38

Step-by-step explanation:

Answer:

It is the third option.

Step-by-step explanation:

Also Math-way is a good place to answer questions like these as well.

Determina un numero entero para cada una de las siguientes situacones. a. El submarino se encuentra a 1.854 m de profundidad. b. 36 Km al norte de la ciudad. c. A temperatura de 13 grados bajo cero d. Una consignación de $ 1.432.000 e. Un ascensor subiendo al 5º piso.

Answers

Answer:

Step-by-step explanation:

Un numero entero es cualquier numero positivo o negativo que no es un decimal. En las situaciones que estan en la pregunta los numeros enteros serian los siguientes.

a. -2  (numero redondeado y negativo por que es abajo de la tierra)

b. 36

c. -13 (negativo por que es bajo 0)

d. 1432000

e. 5

I need help please will mark you as brainliest

Answers

Answer:

178 correct problems

Step-by-step explanation:

turn the percentage into a decimal (0.89) and multiply it by the number of questions

Answer: 178

Step-by-step explanation:

89% x 200. Change percent to decimal by moving the decimal to the left two places.

.89 x 200 = 178

HELP ASAP I give brainliest!

1. I just signed up for Ugly Produce (a food delivery service for Ugly Fruits & Vegetables). My first box of apples arrived today. 2/5 of the apples were red. 3/4 of the remaining apples were green and the rest of the apples were yellow.
a. What percent of the apples were yellow?

b. Now that I have so many apples, I decided to make a giant apple pie. The recipe calls for 3 cups of sugar and 4 cups of flour but I only have 2 cups of sugar. How much flour should I use?
(set up a ratio/table or proportion and solve).

Answers

1. 5%

2. That’s the only answer I have, sorry.

3x - 6 less than or equal to -3 on a graph

Answers

I believe that -3 is less than 3x-6 because if you look at their graph -3’s graph is below 3x-6 graph

Find the real solutions to the nearest hundredth.

Answers

Answer:

14: x=-3.00             15: x=-0.41

Step-by-step explanation:

(x+5)^4=16

x+5=16^(1/4)

x+5=2

x=-3

(x-2)^3=-14

x-2=(-14)^(1/3)

x-2=-2.41

x=-0.41

$26.53 is what percent of $75.80 ?

Answers

Answer:

35%

Step-by-step explanation:

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