Find the missing length.
C =
✓ [?]
C
7
9
Pythagorean Theorem: a2 + b2 = c2
Enter

Step-by-step explanation:

√-100

= √100 * √-1 (√mn = √m * √n)

= 10i. (i² = -1, i = √-1)

Answer:

y = 1

Step-by-step explanation:

Since 15 and 5, 18 and 6, and 27 and 9 all have 3 in common, then 3 should go into 1.

Answer:

1

Step-by-step explanation:

equation is always x/3=y

Answer:

funny

Step-by-step explanation:

Answer: month 7

Step-by-step explanation:

My sis did it

Answer:

below

Step-by-step explanation:

first put it in point-slope then slope intercept:

y+10=3(x+5)

y+10=3x+15

y=3x+5

now graph it

Answer:

both

Step-by-step explanation:

Answer:

5,290 repersent the distence that the jaquar jumped . and ran.

Step-by-step explanation:

pleas mark brainist plz happy to help

Answer:

42/145

Step-by-step explanation:

i tried might be wrong

Answer:

c

Step-by-step explanation:

someone else said c and i got it right

Answer:

30

Step-by-step explanation:

1/2(12)(5)

Answer:

30

Step-by-step explanation:

The area of a triangle is 1/2 bh

b= base, in this case 12 cm

h= height, in this case 5 cm

so you multiply 5 times 12 and you get 60

You take that 60 and half it to get your answer of 30.

Answer: the elapsed time is 3 hours and 45 minutes, so option C.

Answer:

The other dude was wrong :( the answer is 6.39

Step-by-step explanation:

I took the test on K12

Answer:

B

Step-by-step explanation:

We are given that x and y are functions of time t such that x and y is a constant. So, we can write the following equation:

[tex]x(t)+y(t)=k,\text{ where $k$ is some constant}[/tex]

The rate of change of x and the rate of change of y with respect to time t is simply dx/dt and dy/dt, respectively. So, we will differentiate both sides with respect to t:

[tex]\displaystyle \frac{d}{dt}\Big[x(t)+y(t)\Big]=\frac{d}{dt}[k][/tex]

Remember that the derivative of a constant is always 0. Therefore:

[tex]\displaystyle \frac{dx}{dt}+\frac{dy}{dt}=0[/tex]

And by subtracting dy/dt from both sides, we acquire:

[tex]\displaystyle \frac{dx}{dt}=-\frac{dy}{dt}[/tex]

Hence, our answer is B.

Answer:

Let x and y be functions of time t such that the sum of x and y is constant.

Answer:

No. It is an inverse variation.

Step-by-step explanation:

6= xy

Making y the subject of formula:

[tex]y = \frac{6}{x} [/tex]

For a direct variation, the equation would be in the form of y=kx, where k is a constant.

However, the equation above is in the form of [tex]y = \frac{k}{x} [/tex].

Thus, 6=xy does not show direct variation.

Answer:

8

Step-by-step explanation:

Answer:

52 girls and 39 boys (multiply each by 13)

Step-by-step explanation:

4 x 13 = 52

3 x 13 = 39

         = 91

Answer:

30

i hope it helps

Answer:

hey you can also go on      m a t h w a y     to find this!

Step-by-step explanation:

both are (0,0)

Answer:

6x + 1

Step-by-step explanation:

1. (10x + 3) + (-4x -2) --> sum means to add.

2. Combine like terms --> 10x - 4x = 6x; 3 - 2 = 1.

3. 6x + 1

Answer:

r=63

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    r/3-(21)=0             r

Simplify   —

           3

r    

 — -  21  = 0

 3     2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :

         21     21 • 3

   21 =  ——  =  ——————

         1        3  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Answer:

45 cm2

Step-by-step explanation:

your welcome I guess?

im doing the same test btw

EDIT: i finished my test this answer is wrong. pls do search for a different answer.  because mine is wrong.

Answer:

The three numbers are 23, 29 and 35.

Step-by-step explanation:

Given: The nth term of a sequence is 2n+1 and the nth term of a different sequence is 3n-1.

To find: The three numbers that are in both sequences and also between 20 and 40.

Consider both the sequences.

Put n = 11 in the nth term 2n+1, we get 23.

So, the 11th term of first sequence is 23.

Now put n = 8 in the nth term 3n-1, we get 23.

So, the 8th term of the second sequence is 23.

Therefore, first number that is in both sequence and lies between 20 and 40 is 23.

Now put n = 14 in the nth term 2n+1, we get 29.

So, the 14th term of first sequence is 29.

Put n = 10 in the nth term 3n-1, we get 29.

So, the 10th term of the second sequence is 29.

Therefore, second number that is in both sequence and lies between 20 and 40 is 29.

If we put n = 17 in the nth term 2n+1, then we get 35.

That is, 17th term of first sequence is 35.

Now we put n = 12 in the nth term 3n-1, then we get 35.

That is, 12th term of second sequence is 35.

So, third number that is in both sequence and lies between 20 and 40 is 35.

Hence, the three numbers that are in both sequences and also between 20 and 40 are 23, 29 and 35.

Answer:

13x+2+3x-4+5x-7=180

Step-by-step explanation:

[tex] \large \boxed {y - y_1 = m(x - x_1)}[/tex]

[tex]y_1 = 3 \\ x_1 = - 4 \\ m = 2[/tex]

[tex]y - 3 = 2(x - ( - 4)) \\ y - 3 = 2(x + 4)[/tex]

[tex] \large \boxed {y - 3 = 2(x + 4)}[/tex]

Answer:

x = 132

Step-by-step explanation:

Angle S = 48   Angle T = 90   Angle W =

180 - 48 = 132

132 - 90 = 42

Angle W = 42

180 - 42 = 132

x = 132

Answer:

14 minutes.

Step-by-step explanation:

To create a linear equation that represents an airplane flying at an altitude of 30,100 feet, descending 2,150 feet per minute, that represents how long it will take for the airplane to touch down, proceed as follows:

2,150X = 30,100

X = 30,100 / 2,150

X = 14

Thus, the plane will take 14 minutes to reach the ground, descending 2,150 feet per minute from 30,100 feet.

Answer:

(-2,1)

Step-by-step explanation:

sooo

x comes first and y comes next