4 NH3 + 5 O2 → 4 NO2 + 6 H2O

The balanced equation above shows that 4.00 moles of NH3 requires ___ mole(s) of O2

0.57
0.80
1.25
5

Answer:

10√3

Step-by-step explanation:

Square the first number

100*3 is 300

100 is square root of 10

Answer:

The 3rd one is correct

(7.5 + 3) x 6 - 4)

Answer:

32

Step-by-step explanation:

[tex]4 \times 8 = 32[/tex]

Answer:

D

Step-by-step explanation: please give me brainlist  Thanks!

Answer:

Step-by-step explanation:

Refer to attached picture.

All given dimensions are given on the picture (not to scale).

Since altitude of the triangle and slant height is given, we can find the base of the triangle using Pythagorean:

It has 9 faces and the total surface area is:

Answer:

-2

Step-by-step explanation:

If Issac has finished 8/10 problems in the homework, and Phil has completed all of it, it can be concluded that Phil completed 10/10. 10/10 would equal a whole, or in this case, the entire homework. If Issac completed 8 problems, and Phil completed 10, subtract both values to find that Issac completed -2 more problems than Phil.

*correct me if I'm wrong, or If I didn't fully understand your question, because I am a little confused with how much homework Phil has finished.

Answer:

D

Step-by-step explanation:

The inverse property states that any number multiplied by its reciprocal equals 1.

Answer:

54

Step-by-step explanation:

6n²

= 6(3)²

= 6(9)

= 54

Answer:

The answers are A, B and C.

Step-by-step explanation:

To solve the inequality you first have to use Distributive Property. You should get -3k + (-21) > -57

Next Divide 21 on both sides. -57/21 is -36

You should have -3k > -57

Divide -3 on both sides. -57/-3 is 12

You should end up with k > 12

And you never used -5, 0 or 8 in the equation and the question asks to choose the following that isn't included in the solution so your answers are A, B and C.

Hope This Helps! ^^

Answer:

the correct answer is option B. V only

Answer:

No

Step-by-step explanation:

I would not agree with Jayna because using the distributive property, you can get:

4(a + 2) = 4(a) + 4(2) = 4a + 8

Jayna did not get the right answer because she did not distribute the 4 to the 2 in a + 2 and she only multiplied a by 4.

Answer:

y = |x+1.5|

Step-by-step explanation:

Start with the graph of y = |x|. To shift it left by 1.5 units, replace x with x+1.5.

General rules for shifting graphs:

Answer:

y=abs(x+1.5)

Step-by-step explanation:

Answer:16

Step-by-step explanation:

Answer:

192 ft²

Step-by-step explanation:

Area of rectangular backyard = 1248 ft²

Width of backyard = 52 ft

Length = x

Area of rectangular backyard = Length * width

1248 = x * 52

x = 1248 / 52

x = 24 feets

Hence, x = height of triangular garden

Area of triangle = 1/2 base * height

Area = 1/2 * 16 * 24

Area = 192 ft²

Answer:

B is the correct answer

Step-by-step explanation:

Since it gets rid of the y so you could find the x and then work around to find the Y.

Answer:

Multiply the first equation by 3.

Step-by-step explanation:

Answer: About 3 hours and 5 minutes to paint the room together.

Step-by-step explanation:

Sally can paint 1/5 of the room in an hour and Steve can paint 1/8 of the room in an hour.

Room/Hour

1/5 ± 1/8 =8/40  

8/40+5/40=13/40

How long to paint the room?

13/40 x 1= 40/13

40÷13=3.0777

So the answer will be Sally and Steve can paint the room in about 3 hours and 5 minutes

Answer:

d

Step-by-step explanation:

not a bc it has to be negative

not c bc its has to be negative

not b bc the slope is -1/2

IT'S D

Answer:

D

Step-by-step explanation:

from the picture, we know that the slope is negative to begin, since the line is going on a downward direction from left to right. this eliminated A and C instantly.

Now we also can see the graph crossed at 3 for the y intercept, which is another reason to eliminate A and C.

we must then find the show of the line.

let us use to point (0,3) since this is the y intercept and (6,0) since this is the x intercept. to find the slope, m, at must use the equation

[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]

so, let's label (0,3) as point 1 and (6,0) as point two. then,

x1 = 0

y1= 3

and

x2= 6

y2=0

Now we just plug in and simplify.

[tex] m = \frac{0 - 3}{6 - 0} = \frac{ - 3}{6} = - \frac{1}{2} [/tex]

we now have our slope and y intercept, so we can plug them into our equation

[tex]y = mx + b[/tex]

where m is the slope and b is the y intercept.

our equation is thus

[tex]y = - \frac{1}{2} x + 3[/tex]

so, the answer is D

Answer: [tex]\frac{1}{a^6}[/tex]

Step-by-step explanation:

When you want to solve something that has a negative exponent, turn it into a fraction.

a^-6

= [tex]\frac{1}{a^6}[/tex]

If you knew the value of a, you would solve it completely.

Answer:

144

Step-by-step explanation:

Answer:

54

Step-by-step explanation:

This is a right angle (complementary angles) so 90-43 is 47 and the angel is x - 7 so you have to add 7. Answer is 54 <3

Answer:

A) [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

The graph goes up 3, to the right 5 between the two points, making the slope [tex]\frac{3}{5}[/tex].

Answer:

0.05, 0.2, 0.6, 0.48 I think

Answer:

0.05,0.2.0.60,0.48

Step-by-step explanation:

hope it helps ... kinda confused betwweeen 0.6 and 0.48

Answer:

30

Step-by-step explanation:

Answer:

10/6 is the answer

cosine=hypotenuse/opposite

Step-by-step explanation:

Answer:

Wait u gave the same equation twice, do u mind checking back to it?

Step-by-step explanation:

Answer:

15 tables

Step-by-step explanation:

75/5 = 15

Answer:

There are 15 tables in the library.

Step-by-step explanation:

You know this because you know the library holds 75 people and you know how many people can sit at a table so to find the answer you divide 75 by 5 and you get 15. To check this you can multiply 15 by 5 and you will get 75.  

Answer:

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

60= (4x - 20)

expl: vertically Opposite angles

Answer:(0, -3)

Step-by-step explanation:

$79.99 - 15% = $67.9915

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