Mathematics High School

solve for x using the correct order operations
12- (3 times 2)^2 + 4 times 3 = x
A x = -60
B x = -12
C x= 48
D x = 12
please help i will give brainliest :))

Answers

Answer 1

Answer:

B: x = -12

Step-by-step explanation:

12 - (3 × 2)^2 + 4 × 3

Use PEMDAS, meaning solve what's in the parentheses first (P stands for parentheses)

12 - (6)^2 + 4 × 3

We get 6 because 3 × 2 = 6

Next step is solve any exponents (E for exponents)

12 - 36 + 4 × 3

We get 36 because 6 × 6 = 36 (the exponent was 2 meaning multiply the same number, 6, twice: 6 × 6)

Now we move on to multiplication and division (M for multiplication and D for division)

These are interchangable in that either can go first depending on its location in the equation

However, since there is no division in this problem we automatically skip to multiplication

12 - 36 + 12

We answered 12 because 4 × 3 = 12

Our last steps in PEMDAS are addition and subtraction (A for addition and S for subtraction)

These are also interchangable, but both are apparent in this problem

Now it depends on location

Whichever sign (addition or subtraction) is first in accordance from left to right is where we start first)

Subtraction is first

-24 + 12

Now we add -24 + 12

-12

Related Questions

1/1
Proportion
ains 12 marbles. The marbles are either red or blue. If th
1: 2, how many of each colour are there in the bag?

Answers

1+2=3, 12 divided by 3=4 4x1=4, so there is 4 red marbles. 4x2=8 so there is 8 blue marbles. We can check this is true by adding 8+4 which =12.

blue=8
red=4

Fay has a lemonade stand.
She spends £42 on ingredients.
She sells each glass of lemonade for £1.50.
If she sells 30 glasses of lemonade, what is her total profit?

Answers

Answer:

her total profit is 3

Step-by-step explanation:

1.50 x 30 = 45

to find total profit - 45-42= 3

Her total profit would be £3.
£1.50 multiplied by 30 glasses equals £45
You then subtract £45-£42 to get £3 profit.
Hope that helped!

To be able to go on a trip to South America, Salma decides to save for 2 years. She opens a savings account with $700 . The account pays simple interest at an annual rate of 5% . She doesn't make any more deposits.

(a) How much total interest will Salma earn?

(b) What will the total amount in the account be (including interest)?

Answers

Answer:

(a) I'm pretty sure it's $71.75

(b) the total would be $771.75 if i calculated it right...

What is the answer to this.

Answers

Answer:

(0,0)

Step-by-step explanation:

Answer:

o,o

Step-by-step explanation:

trust me

Not drawn
accurately
AB is parallel to CD.
LMN and PMQ are straight lines.
MQ = MN
B
Work out the value of x. *
(3 Points)
Diagram not drawn accurately.
-D
The value must be a number

Answers

so first u want to get a ruler to measure each sides, there gonna seem big at first so divide what you get on the ruler by 2 so its smaller, then do it for all sides.

2s + (-4s) simplify

Answers

Answer:

-2s

Step-by-step explanation:

Answer:

-2s

Step-by-step explanation:

We have: 2s + (-4s)

Take -4s outside of the parentheses and we now have: 2s - 4s

Now subtract and the simplified equation will be: -2s

help for brainlest what can be use ti

Answers

Answer:

2x(5+13)

Step-by-step explanation:

add then multiply by 2

Answer:

to find perimeter

= 2(L+w)

= 2(5+13)

10+26

36

so the answer is 2×(5+13)

hope it's helpful ❤❤❤❤

THANK YOU.

If there are 14 people, and each person has 2 coins, there are ____ times as many coins as people.

Answers

Hi so u would multiply then add 2 to get ur answer

Answer:

28

Step-by-step explanation:

am i wrong

ok bb now

--z-

need help with this question

Answers

Answer:

1 and 3, 2 and 4

Step-by-step explanation:

Supplementary angles total to 180° or should form a straight line. 1 and 3, 2 and 4 are vertical angles which equal one another and are not supplementary.

what is the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1)?​

Answers

Answer: The other point is (17, -6).

Step-by-step explanation:

Midpoint (x,y) of the line segment joining (a,b) and (c,d) is given by :-

[tex](x,y) =(\dfrac{a+c}{2}, \dfrac{b+d}{2})[/tex]

Here, we need to find the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1).

Let other point be (a,b), then

[tex](7,1)=(\dfrac{-3+a}{2},\dfrac{8+b}{2})\\\\\Rightarrow\ \dfrac{-3+a}{2}=7\ \text{ and }\dfrac{8+b}{2}=1\\\\\Rightarrow\ -3+a = 7\times2 \text{ and } 8+b=1\times2\\\\\Rightarrow\ -3+a=14\text{ and }8+b=2\\\\\Rightarrow\ a=14+3, \ \ \ b= 2-8\\\\\Rightarrow\ a=17, b= -6[/tex]

hence, the other point is (17, -6).

Bella measured the heights of her corn stalks in centimeters. The heights are 81, 88, 69, 65, 87.
What is the mean height of Bella's corn stalks?
A. 69 cm
B. 75 cm
C. 78 cm
D. 80 cm
E. 81 cm

Answers

It would be E I’m not sure but maybe

2x + 5y = 6
find the x-intercept of the line

Answers

Answer:

X=-2.5+3

Step-by-step explanation:

2x + 5y = 6

2X=-5Y+6

X=-2.5Y+3

7 points
1. Original points (1,3), (3,2), and (4.2) are drawn on a graph and transformed to points
(-1,3), (-3,2), and (-4,2). Which rule describes the transformation performed? *
(x,y) -> (-x, y) because the triangle was reflected over the y-axis
(x,y) -> (x,-y) because the triangle was reflected over the x-axis
(x,y) -> (x, y - 2) because the triangle was translated 2 units down
O
(x,y) -> (x, y-6) because the triangle was translated 6 units down

Answers


(x,y) -> (-x, y) because the triangle was reflected over the y-axis

last question for the day

Answers

Answer:

a

Step-by-step explanation:

What is the slope of the line y=8?

Answers

Answer:

undefined or 0

Step-by-step explanation:

Answer:

The answer is 0 because undefined is straight up or vertical

Write the following in standard form:
Write
A = 4
B = 2
C = 7

Answers

Answer:

4x + 2y = 7

Step-by-step explanation:

The standard form equation goes as follows: Ax + By = C

We know what A, B, and C is so all we need to do is fill them in.

What is the measurement of the unknown angle?
70°
2
127
146°

Answers

Answer:

Where's the picture of it?

100 POINTS. HELP ASAP !!! PLEASE PLEASE

Answers

Answer:

task 1 answer is 14

The diameter of a circle is 16 yards. What is the circle's area?
d=16 yd
Use 3.14 for n.

Answers

Answer: D=16km

r=8km

circumference of a circle= 2πr

                                     = 2*3.14*8

                                     =50.24km

 P.S 3.14 is used as the value for π (pie)

Step-by-step explanation:

Find the slope of the line from a graph! Will Give brainliest :)

Answers

Answer:

-4

Step-by-step explanation:

because the line is going from top to bottom it is negative

you take the rise ( the Y value) / the run (the X Value)

the Y and X value can be pulled from any two points

What is the value of y

Answers

I did something like this but I forgot:(

If MP=6x-5,QR=3x+1, and RN=6, what is QN

Answers

Answer:

12

Step-by-step explanation:

12

I need help with this ​

Answers

Answer:

Step-by-step explanation:

9/I0 x 2/2 =9/I0

Or 0.9 in decimals

Answer:

The answer is IN the question... (9/10)

Step-by-step explanation:

Ok well you multiply the numberator and denominator by 2 which makes 18/20 but OH THAT CAN BE SIMPLIFIED SO DIE FRACTION! so then you divide both sides by 2 and you get the original 9/10

plz brainliest :)

Can you please not sit on my eggplant Because if 6 inches plus 6 inches is not 3 inches but it would be 12 inches then why would it be 12 inches if it wasn’t 3 inches?

Answers

Answer:

because you add. if you would subtract 6 inches by 3 inches it would be 3 inches.

To ride an amusement park ride, your height must be at or above the line on the sign. For each set of information, write an integer that represents a person's height relative to the line on the sign and type yes or no as to whether they can ride the ride.

Answers

Answer:

3ft tall yes 2ft and 12inches no

Step-by-step explanation:

hope this helps

Solve 3(x − 4) = 12x
x=?

Answers

Answer:

im pretty sure the answer is eight!

Step-by-step explanation:

Answer:

x = -4/3

Step-by-step explanation:

[tex]3(x-4)=12x\\\\3x-12=12x\\\\3x-12+12=12x+12\\\\3x=12x+12\\\\3x-12x=12x-12x+12\\\\-9x=12\\\\\frac{-9x=12}{-9}\\\\\boxed{x=-\frac{4}{3}}[/tex]

Hope this helps!

The CEO of a cell-phone company has recently noticed a 26% sales decrease in the month of July compared to June. Let n represent June’s sales. If y represents July’s sales, which equation can be used to determine the sales in July?

Answers

Answer:

y = n - 0.26n

y = 0.74n

Step-by-step explanation:

The equation that can be used to express the function above is given an Exponential Decrease function

Where:

y = a(1 - r)^t

Where

y = July sales

a = n = June sales

r = rate of decrease = 26% = 0.26

t = time in months = June to July = 1 month

t = 1

Hence, our equation =

y = n( 1 - 0.26)¹

y = n(1 - 0.26)

y = n - 0.26n

y = 0.74n

The equation that can be used to determine the sales in July is given as:

y = n - 0.26n

y = 0.74n

What is a formula for the nth term of the given sequence? 160,200,250

Answers

Answer:

can i see the picture?

picture?
l need to see that picture first

A music store has 5 guitars for sale. Each guitar has 6 strings. The manager wants to replace all the strings. How many new strings does he need?

Answers

Answer:

30 strings

Step-by-step explanation:

Answer:

5 guitars...each has 6 strings

5 x 6=30

so 30 strings needed

NEED HELP PLSS!!!



pls dont answer if you dont know

Answers

Answer:

the second one is 343 to the 5 power

Step-by-step explanation:

thats all i know

srry honey

Answer:

[tex]16 {x}^{14} [/tex]

[tex] {7}^{15} [/tex]

Step-by-step explanation:

to understand thisyou need to know about:law of exponentPEMDASgiven:(8x⁸)(2x⁶)(7³)⁵tips and formulas:[tex]( {hx}^{a} )(g {x}^{b} ) = hg {x}^{a + b} [/tex][tex]( {x} ^{a} )^{b} < = > {x }^{ab} [/tex]let's solve:

[tex](8 {x}^{8} )(2 {x}^{6} ) \\ 8 \times 2 \times {x}^{8 + 6 } \\ 16 {x}^{14} [/tex]

[tex]( {7}^{3} ) ^{5 } \\ {7}^{5 \times 3} \\ {7}^{15} [/tex]

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