Given 2x+6=12 prove x=3

Answers

Answer 1

Answer:

3times 2 + 6=12

Step-by-step explanation:


Related Questions

please help due today​

Answers

Answer:

aabavcaca

Step-by-step explanation:

fafafadfaf

Find m<1 if <1 is complementary to <2, <2 is supplementary to <3, and
m<3 = 126

Answers

Answer:

∠ 1 = 36°

Step-by-step explanation:

Supplementary angles sum to 180° then

∠ 2 + ∠ 3 = 180° , that is

∠ 2 + 126° = 180° ( subtract 126° from both sides )

∠ 2 = 54°

Complementary angles sum to 90° , then

∠ 1 + ∠ 2 = 90° , that is

∠ 1 + 54° = 90° ( subtract 54° from both sides )

∠ 1 = 36°

PLS HELP ME SLOPE INTERCEPT FORMMM
through: (1, -1), parallel to y=5/3x

Answers

Step-by-step explanation:

the slope = 5/3

through (1, -1)

the equation :

y -(-1) = 5/3 (x -1)

y+1 = 5/3 x -5/3

y = 5/3 x -5/3 -1

y = 5/3 x - 8/3 or y = 5/3 x - 2⅔

is 2.4 bigger than 2 1/3 ?

Answers

8.8 this letter forty years

Answer:

yes

Step-by-step explanation:

u can change 2 1/3 to decimal and u will get 2.33.

therefire, 2.4 is bigger than 2 1/3

i need help pleaseee!!

Answers

Answer:

[tex]320 \sqrt{2} [/tex]

On the first day of class, Willem’s Algebra I teacher agreed to assign no homework for a week to the first student to answer this question: There is a positive two-digit integer that is divisible by the sum of its digits and has exactly five factors. What is the sum of its factors? (This is for my little sister in middle school)

Answers

Answer:

81

Step-by-step explanation:

There are only two numbers with 5 factors that are only two digits. 16 and 81 are the only options and when you add 8+1=9 and 81 is divisible by 9.

Have fun with no homework for a week!

I need help in this question ⁉️​

Answers

i do know the answewr and it is b because the irrational product is negative 6

Here is a room with two lasers. Your goal is to get to the opposite side of the room. However there is a catch; if you do not stay equidistant from each laser, you will be blasted. Describe in a Word document how you would find the straight-line path across the room. Be sure to use correct geometric terminology from what you have learned so far.

Answers

Step-by-step explanation:

we would calculate the line of sight between the 2 lasers.

then we would create a line that goes through the middle point between the 2 lasers and is perpendicular to the line between the lasers. if we are lucky, then "You" is on the same perpendicular line. if not, we need to shift our starting point to a point where the perpendicular line hits the wall of the room.

by following that perpendicular line precisely, we we always have the same distance from both lasers.

What factors do 18 and 30 have in common?

Answers

Answer:

Factors for 18: 1, 2, 3, 6, 9, and 18.

Factors for 30: 1, 2, 3, 5, 6, 10, 15, and 30.

:)

Step-by-step explanation:

common factors are 1,2,3,6

Help meeeeeee on this math hw

Answers

Answer:

Step-by-step explanation:

What do you know about y?

Nothing. It could be odd or even. You can't take the chance. So you need to start your list with 2y

That means that 2y + 2 is the second member in your list

2y + 4

2y + 6

2y + 8

2y + 10

But notice you only have 5 numbers. 2y + 10 cannot be the answer.

The answer must be 2y + 20

WILL GIVE BRAINLIEST

Answers

Answer:

Page 3 - the y-intercept would remain at 5 and the slope would be 3 times the upward slope.

Page 5 - the y-intercept would remain at -2 and the slope would be 1/4 instead of 5

Step-by-step explanation:

In point slope form the slope and y-intercept can be read directly from the equation.

y = mx + b where m is the slope and b is the y-intercept.

Find the measure of the missing angle of each

Answers

Answer:

? = 120, ? = 145, respectively

Step-by-step explanation:

? + 60 = 180

? (+ 60 - 60) = 180 - 60

? = 120

35 + ? = 180

(35 - 35) + ? = 180 - 35

? = 145

Which decimal is equivalent to 8/11 ?
A. 0.72
B. 0.72 REPEATING
C. 0.88
D. 0.88 REPEATING

Answers

Answer:

b

Step-by-step explanation:

the answer is 0.7272727273 in total

the answer is B.) 0.72 repeating.

Please solve I will mark brainliest if correct

Answers

Answer:

m<RQP = 62°

Step-by-step explanation:

m<RQP = m<PQB + m<RQB

m<RQP = 38° + 24°

m<RQP = 62°

length and width of a field are in the ratio 5.3 If the wilth of 아 the field is 42m, then its length is​

Answers

Answer:

The length of the feild is:

    (42 / 3) x 5 = 70m

So the length of the feild is 70m

Hope it helps, Brainliest  please <3

some please help!!!
i need it for now!!!!
PLEASE

Answers

Answer:

r =√[3V/(π h)]

Step-by-step explanation:

V = ⅓ × π r²h

=> multiplied by 3

3V = π r² h

=> find r²

r² = 3V/(π h)

=> find r

r =[3V/(π h)]

Answer:

[tex]r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Step-by-step explanation:

Given equation:

[tex]V=\dfrac{1}{3} \times \pi r^2 h[/tex]

To isolate [tex]r[/tex], multiply both sides by 3:

[tex]\implies V \times 3=\dfrac{1}{3} \times \pi r^2 h \times 3[/tex]

[tex]\implies 3V= \pi r^2 h[/tex]

Divide both sides by [tex]\pi h[/tex]:

[tex]\implies \dfrac{3V}{\pi h}= \dfrac{\pi r^2 h}{\pi h}[/tex]

[tex]\implies \dfrac{3V}{\pi h}=r^2[/tex]

Square root both sides:

[tex]\implies \sqrt{r^2}=\sqrt{\dfrac{3V}{\pi h}}[/tex]

As the radius is positive only:

[tex]\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0[/tex]

[tex]\implies r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

help i will give brainiest

Answers

Step-by-step explanation:

what the heck is that if someone's answers this they 9n x games mode

(2sinx+3cosx)²+(3sinx-2cosx)²=13 prove plz

Answers

Answer:

LHS:-

(4sin²x +9cos²x + 12sinxcosx) +(9sin²x+ 4 cos²x -12sinxcosx)

13 (sin²x + cos²x)

13*1 =

13RHS

HP

Answer:

see explanation

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1

Consider left side

(2sinx + 3cosx)² + (3sinx - 2cosx)² ← expand parenthesis using FOIL

= 4sin²x + 12sinxcosx + 9cos²x + 9sin²x - 12sinxcosx + 4cos²x

Collect like terms

= 13sin²x + 13cos²x ← factor out 13 from each term

= 13(sin²x + cos²x)

= 13 × 1

= 13

= right side , thus proven

30. -3a^2= -3-6^2 is this correct? And I have to evaluate o I am not good at that so if u can help THANK YOU so much!

a=-6

Answers

Answer:

-3a^2= -3*(-6)^2

Step-by-step explanation:

-3a^2 = -3*a^2 = -3*(-6)^2

gm everyone plz help with this question down below :) Who was Sherlock Holmes?
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(cough cough) free, ,points

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Sherlock Holmes is an fictional detective

Which number line represents the solutions to the inequality 9x + 2 5 6x - 4?

Answers

Answer: i 99% that it is B

Step-by-step explanation:

Help! I don’t get this ine

Answers

[tex]3|2x+4|-1=11 \ \ /+1\\\\3|2x+4|=12 \ \ /:3\\\\|2x+4|=4\\\\2x+4=4 \ \ \text{or} \ \ 2x+4=-4\\\\2x=0 \ \ \text{or} \ \ 2x=-8\\\\\boxed{x=0} \ \ \text{or} \ \ \boxed{x=-4}[/tex]

what does -5/8 ÷ 12=

I tried -5/96 but it did not work​

Answers

Answer:

Its -5/96 in fraction form and −0.052083 repeating in decimal form.

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Locker combinations consist of numbers 1-30 on the dial. Every locker combo is 3
numbers. How many different locker combinations are there? (Enter the number only -
no labels)

Answers

Answer:  27000

This is the number 27 thousand

==============================================

Explanation:

There are three slots and 30 choices per slot. Repeats are allowed.

So there are 30*30*30 = 27,000 different locker combos.

Amaya wants to jog 8 miles this week.She jogged 2 1/2 miles on Monday and 3 2/5 miles on wednesday. How many miles does Amaya still need to jog?

Answers

Answer:

2 1/10 miles.

Step-by-step explanation:

8 - (2 1/2 + 3 2/5)

= 8 -  (5/2  + 17/5)

= 8 - (25/10 + 34/10)

= 8 - 59/10

= 80/10 - 59/10

= 21/10

= 2 1/10 miles.

so i'm struggling with a different problem this time. 5p - 9 = 2p + 12. (keep in mind i am an 8th grader in a high school algebra 1 class so i'm pretty clueless)

Answers

Solution :

5p - 9 = 2p + 12

5p - 2p = 12 + 9

3p = 21

p = 21 ÷ 3

p = 7
5p - 9 = 2p + 12
5p - 9 - 2p = 12
3p - 9 = 12
3p - 9 + 9 = 12 + 9
3p = 21
3p/3 = 21/3
p = 7

anyone know the answer??

Answers

Answer:

X (2, 1)

Y (2, 3)

W (5, 5)

Step-by-step explanation:

The current points are:

X (-2, -1)

Y (-2, -3)

W (-5, -5)

Now, after rotating 180 degrees around the origin, here is what points Y, Y, and W would look like:

X (2, 1)

Y (2, 3)

W (5, 5)

Plot these new points on the graph, and you'll have a new figure which will be rotated to 180 degrees.

I have also provided you with a graph, showing both, the original and the rotated version, below.

f(x) = x-4.
find f(b)


Answers

Answer:

x0.4

Step-by-step explanation:

If three circular metal discs of equal thickness whose radii are 5cm, 20cm and 40cm are melted down to form one circular disc of the same thickness, find its radius.

Answers

Answer: 45 (cm)

Step-by-step explanation:

Since the discs have the same thickness, we will think about the areas.

Let say x the new radius:

[tex]\pi*5^2+\pi*20^2+\pi*40^2=\pi*x^2\\\Longrightarrow\ 5^2+20^2+40^2=x^2\\\\\Longrightarrow\ 2025=x^2\\\\\Longrightarrow\ x=\sqrt{2025} =45[/tex]

91.) A car is traveling at 5 m/s. How far has it gone in 12 seconds?

Answers

5 m/s · 12 s = 5 m · 12 = 60 m

Answer: in 12 seconds that car has gone 60 metres.

Answer:

A car travels at a constant rate of 5 metres per second.

That means that for every second,the car travels 5m/s.

The question is asking you for how far the car travelled after 12 seconds.Muntiply 12 to bottom and top.

5m/1s*12/12=60/12

The car travels 60 metre in 12 seconds

hope this helps to u and don't forget to mark me as brainliest

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