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3 years ago

Find the next two numbers in the pattern. 9,-27,81,-243....

Mathematics

1 answer:

slava [35]3 years ago

6 0

The answer is 729, -2187

because you multiply each number by -3

You might be interested in

True or false 9 > d, if d = 3

Talja [164]

Answer:

true

Step-by-step explanation:

The left side 9 is greater than the right side 3, which means that the given statement is always true.

3 0

3 years ago

Triangle ABC is formed by the vertices A(1,2,-1), B(-3,-6,2)and C(3,-2,0).

Vesnalui [34]

Answer:

Point D: $(0,-4, 1 )$

d = √41

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Pre-Calculus

Midpoint Formula [3D]: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}, \frac{z_1+z_2}{2} )$
Distance Formula [3D]: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}$

Step-by-step explanation:

Step 1: Define

Point A(1, 2, -1)

Point B(-3, -6, 2)

Point C(3, -2, 0)

Step 2: Find Point D

Simply plug in your coordinates B and C into the midpoint formula to find midpoint

Substitute [MF]: $(\frac{-3+3}{2},\frac{-6-2}{2}, \frac{2+0}{2} )$
Add/Subtract: $(\frac{0}{2},\frac{-8}{2}, \frac{2}{2} )$
Divide: $(0,-4, 1 )$

Step 3: Find distance d

Simply plug in the 2 coordinates A and D into the distance formula to find distance d

Substitute [DF]: $d = \sqrt{(0-1)^2+(-4-2)^2+(1+1)^2}$
Subtract/Add: $d = \sqrt{(-1)^2+(-6)^2+(2)^2}$
Exponents: $d = \sqrt{1+36+4}$
Add: $d = \sqrt{41}$

5 0

3 years ago

Trapezoid RSTV∼trapezoid WXYZ .

ICE Princess25 [194]

WX/RS = (28 ft)/(40 ft) = 7/10

Selection D is appropriate.

5 0

3 years ago

Read 2 more answers

The Sum if two numbers is 54. The difference of the two numbers is 116. Find the numbers

ziro4ka [17]

Answer:

the numbers are 85 and -31.

Step-by-step explanation:

first, let the numbers be x and y.

so by question we have,

x+y=54.......(I)

x-y=116......(I I)

now, solve it through elimination method,

x+y=54

x-y=116

here, y and y cancelled out and we get,

or, x+x=54+116

or, 2x=170

or, x=170/2

therefore, x=85

now put value of x in any equation. let's put in eqn (I), we get,

or, x+y=54

or,85+y=54

or, y=54-85

so, y= -31

therefore, the numbers are 85 and - 31.

7 0

3 years ago

10. What is the value of x?

abruzzese [7]

X=8

the triangle adds up to 180 the top angle is a right angle(90 degrees) the angle on the left is 63 degrees. 2x8+11=27
63+90=153
153+27=180

i’m sorry if it doesn’t make sense

3 0

3 years ago

Read 2 more answers