There are 25 students and one teacher in class. After an exam, everyone high-fives
everyone else to celebrate how well they did. How many high-fives were there?

Answer:

20

Step-by-step explanation:

When triangles are similar,

DE/DF=GH/GJ

[tex]\frac{x}{16} =\frac{15}{12} \\\\x=\frac{15*16}{12} \\\\x=20[/tex]

Answer:

x = 24

Step-by-step explanation:

[tex]\frac{16}{x} = \frac{12}{18}[/tex]

[tex]12(x) = 18(16)[/tex]

[tex]12x = 288[/tex]

[tex]x = 24[/tex]

Answer:

180,000,000,000

Step-by-step explanation:

toAnswer:

x ≥ 1

[] See attached

Step-by-step explanation:

[Given]

-6 ≤ -7 + x

[Add 7 to both sides]

1 ≤  x

For the graph, we will plot the point 1 and fill it in since x is greater than or equal to 1. Next, we will draw an arrow to the right showing greater than.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Answer:

You can replace "a number" with a variable to represent an unknown value.

You can replace "sum" with an addition sign.

You can replace "one-third" with 1/3.

Step-by-step explanation:

"the sum" means to add.

Let "a number" = x:

The sum of a number and one-third = x + 1/3.

You can replace "a number" with a variable to represent an unknown value.

You can replace "sum" with an addition sign.

You can replace "one-third" with 1/3.

Answer:

05 is your answer

Step-by-step explanation:

hope it helps you

Answer:

it might be 3

Step-by-step explanation:

due to someone getting 5sec wrong me getting 2 wrong another post with only three stars said 4 so id leave it to 4 or 3.(process of elimination)

Answer:

63360 inch = 1 miles.

Step-by-step explanation:

Answer:

63360

Step-by-step explanation:

G

O

O

G

L

E

Answer:

the answer is c, 1/81

Step-by-step explanation:

Hope this helps! :)

Answer:

21

Step-by-step explanation:

x2 + 3.4y, when x = 2, y = 5

(2)2+3.4(5)

2×2+3.4×5

4+5×3.4

4+17

21

Hope it helps! :)

Step-by-step explanation:

[tex]2 - \frac{x + 1}{x - 2} - \frac{x - 4}{x + 2} = \: \frac{ax + b}{x {}^{2} - 4 } \\ = \: \: 2 - \frac{(x + 1)(x + 2) - (x - 4)(x - 2)}{x {}^{2} - 4 } \\ = \frac{2x {}^{2} - 8 - x {}^{2} - 2x - x - 2 - x {}^{2} + 2x + 4x - 8 }{x {}^{2} - 4 } \\ = \frac{ - 8 - 2 + 3x - 8}{x {}^{2} - 4 } \\ = \frac{3x - 18}{x {}^{2} - 4 } \\ [/tex]

so, a = 3, b = -18

Answer:

3x - 18 ÷ x^2 - 4

a=3

a=3b= - 18

Hope this helps!

Answer:

8 hours

Step-by-step explanation:

$216 → 12 hours

$1 → [tex]\frac{12}{216}[/tex] hours

$144 → ( [tex]\frac{12}{216}[/tex] *144) → 8 hours

Supplementary angles add to 180 degrees.

180 - 144 = 36

36/2 = 18

18 + 144 = 162

One angle is 18 and the other one is 162

Answer:

The equation is wrongexplanatiowrongexplanwrongo

Step-by-step explanation:

Answer:

y = 2/3x​

Step-by-step explanation:

[] Since the line goes through the origin (0, 0) the line will have no b. This does not rule out any of the options as they all have no b.

[] When we have clear points on a line, we can find the slope by using "rise-over-run." Here is an example using your problem;

-> The slope of the line will be positive because it is going from the bottom left to the top right.

We will start at (0, 0). We count up two units to (0, 2) and to the right three units too our next point, (3, 2). This leaves us with a slope of 2/3.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

0.6x=80

6x=800

x=800/6=133.3333333333333333333333333333333...

which is 133 1/3 in a fraction

Answer:

Point A (0, 8)

Point B (0, -6)

Point C (0, 0)

I hope this helps!

Answer:

x = 97/8​

Step-by-step explanation:

6/8 + 1 = 26 - 2x

6/8 + 8/8 = 26 - 2x

14/8 = 26 - 2x

14/8 - 26 = -2x

14/8 - 208/8 = -2x

-194/8 = -2x

194/16 = x

x = 97/8​

Answer:

8xb + 456x

Step-by-step explanation:

8x(b + 456)

8xb + 456x

You multiply 8x by the numbers in the parenthesis. And you add the variables to the coefficents.

I hope it helps! Have a great day!

Lilac~

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation: look at the graph dude

Answer:

  32°, 36°, 112°

Step-by-step explanation:

All of the angles are described in terms of the first angle, so we can use a variable to represent that: x. The second angle is (x+4) and the third angle is (3x+16). As always, the sum of angles in a triangle is 180 degrees:

  x +(x +4) +(3x +16) = 180

  5x +20 = 180 . . . . . collect terms

  5x = 160 . . . . . . . subtract 20

  x = 32 . . . . . . . divide by 5

  x+4 = 36 . . . . find the other two angles

  3x+16 = 3(32) +16 = 112

The angles of the triangular yard are 32°, 36°, and 112°.

Answer:

for a. you will first solve 5x²-2x+6 with

x=-b ± ✓b²-4ac

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

2a

then put the two answers you will get into a bracket then multiply it with 1/2x - 1\4

then write in form of dis :- A ×10^n

Step-by-step explanation:

b. the two products are not the same

Answer:

a)-0.95

b)1.49

c)-8.1

d)1.3

Step-by-step explanation:

a) just add the postive to the negative, pretty simple.

b) the two negatives in this problem cancel out so the new pronlem is adding -.85+2.34

c)Anything multiplied by one negative will have a negative product

d)Divide like regular, but anything that has two negatives equals a postive.

Let me know if you need more or the actual work.

Answer:

d I think I could be wrong but hey who knows

10. C because if you use the distance formula you get 10.

Answer:

Which part do you want? I can easily help you

3=39

2=108

1=72

Explanation:

The key word here is "desired". We wish to make the errors as small as possible. The smallest any individual error can get is 0. Adding the entire collection of zeros will sum in a total of zero.

An error of zero means we hit the mark exactly. The unfortunate reality is that error is going to happen, so we'll have some positive error values with any regression line (or curve). It's only when all points are on the same line is when we have zero error and perfect interpolation rather than regression.

Again, the question is asking about desired error and the ultimate goal is to make the error zero. The next best thing is to minimize it as small as possible.

The area of a shape is the amount of space it occupies

Using the assumed values, the area of the shaded region is 3 square meters

From the question, we understand that the rectangle is inscribed in the trapezoid

This means that, the area of the rectangle is smaller than the area of the trapezoid

The question is incomplete, so we make use of the following assumed values.

So, the shaded region would be

Shaded = 18 - 15

Evaluate the difference

Shaded = 3

Hence, the area of the shaded region is 3 square meters

Read more about shaded regions at:

https://brainly.com/question/8460992

Answer:

your answer would be: no number

Step-by-step explanation:

to get a positive 5, you have to multiply 2 negative numbers, which are -1 and -5. and negative -1 + -5 =-6. For you to get -4, the 5 would have to be -5, in this case, it's a +5.

Answer:

30

Step-by-step explanation: