All categories

3 years ago

I need help on finding x?

Mathematics

1 answer:

Readme [11.4K]3 years ago

8 0

Answer:

The equations (6x+42) degrees and (18x-12) degrees are congruent angles so to set up the equation, put both expressions on different sides of the equals sign. Use properties of equality to get x=4.5

Step-by-step explanation:

Your equation should be 6x+42=18x-12

Add the 12 to both sides to get 6x+54=18x

Move the 6x to the other side to get 54=12x

Then divide by 12 on both sides to get 4.5

Therefore, x=4.5.

You might be interested in

PLEASE HELP ME ASAP!<br> Find are and perimeter!!!!

dangina [55]

Area = the top semicircle + the rectangle AEBD

= 1/2 pi*6^2 + 6*12 = 128.55 cm^2 to nearest 100th

Perimeter = 6pi + 12 + 2 pi * 3 = 49.70 cm

6 0

3 years ago

Add x^3 - 4x^2 + 1 to 3x^2 + x <br> Show Your work!

Sladkaya [172]

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \: (x {}^{3} - 4x {}^{2} + 1) + (3 {x}^{2} + x)$

$\qquad \sf \dashrightarrow \: {x}^{3} - 4 {x}^{2} + 1 + 3 {x}^{2} + x$

$\qquad \sf \dashrightarrow \: {x}^{3} - 4 {x}^{2} + 3x {}^{2} + x + 1$

$\qquad \sf \dashrightarrow \: {x}^{3} - {x}^{2} + x + 1$

6 0

2 years ago

Please help..................

oksano4ka [1.4K]

Answer:

128.605m^2

Step-by-step explanation:

because the kite has equal sides you can simply just do 8.5m x 10.2m+8.5m x 4.93m :D

8 0

3 years ago

Draw an angle with the given name: <JWJ

Thepotemich [5.8K]

Draw two lines that connect at one point. label where they connect w and the other two ends j

3 0

2 years ago

Car A travels at 45 miles per hour and Car B travels at a greater speed of x miles per hour. Write and simplify an expression th

jonny [76]

$farther = 2 \times (x - 45) = 2x - 90$

3 0

3 years ago