Evaluate the expression when a=3.
a^2+12

Answers

Answer 1

[tex]3^{2} + 12 = 9 + 12 = 21[/tex]

The answer is 21.

Answer 2

Answer:

The correct answer is 21.

Step-by-step explanation:

To solve this problem, we simply substitute 3 for a in the expression.

Given the expression,

a^2 + 12

we should replace "a" with 3, as denoted by the problem, giving us:

(3)^2 + 12

Now, we simplify using the order of operations.  PEMDAS tells us that we should simplify what is in the parentheses first because it has an exponent.

9 + 12

Now, we can just add the two remaining terms together, giving us:

21

Therefore, the answer is 21.

Hope this helps!


Related Questions

2+2x + x^2 +XY

What would be the answer to this question simplified

Answers

Hey there!

ANSWER: [tex]x^2+xy+2x+2[/tex]EXPLANATION:

[tex]2+2x+x^2+x*y[/tex]

To solve, you will need to simplify.

[tex]x^2+xy+2x+2[/tex]

Hope this helps!

[tex]\text {-TestedHyperr}[/tex]

is -7 greater than -4​

Answers

No you’re welcome :)

Answer:

no

Step-by-step explanation:

-7 is smaller than -4 because the farther down the negative part of the number line, the "smaller" it gets

Find the distance from each vertex on the preimage ABC to the center of rotation p enter the values in the table do the same for each vertex on the other images

Answers

Answer:

Enjoy.

Step-by-step explanation:

school

Answer:

Step-by-step explanation:

which number line shows the inequalaty n>-3

Answers

Answer:

the number line shows inequality

Someone please help whats the answer

Answers

x=3 hope it helped!!
The answer is A.) x=3


The sum of two numbers is 55. The smaller number is 15 less than the larger number. What are the numbers?


Answers

Answer:

a=35

b=20

Step-by-step explanation:

a+b =55

a=b+15

b+15 +b =55

2b=55 - 15

2b=40

b=40 :2

b=20 (the smallest number)

a=20 +15 =35 (the largest number)

Step-by-step explanation:

55=x+15

-15     -15

40=x

Hope it helps!

Kevin plant a total of 72 flowers in equal rolls. Can you plant six rolls of yellow flowers and two rows of my flowers. How many flowers are in each row?

Answers

Answer:

  9

Step-by-step explanation:

72 flowers in 8 equal rows will have 9 flowers in each row.

__

72 = 8 × 9

Answer:

There are 9 flowers in each of the 8 rows

Step-by-step explanation:

Kevin plants a total of 72 flowers in equal rows he plants 6 rows of yellow flowers and 2 rows of red flowers how many flowers are in each row

Solution

Total flowers = 72 in Equal rows

Yellow flowers = 6 rows

Red flowers = 2 rows

Rows of yellow flowers + Rows of rec flowers = 6 + 2

= 8 rows

Flowers in each row = Total flowers / total rows

= 72 flowers / 8 rows

= 9 flowers

Flowers in each row = 9 flowers

-6(9-9v) what is the answer

Answers

simplify the expression-54+54v

What is objective ??

Answers

Answer:

In math :The objective function is a mathematical term that describes how different variables contribute to a certain value that is being sought to be optimized.

In science: Scientific objectivity is a characteristic of scientific claims, methods and results. It expresses the idea that the claims, methods and results of science are not, or should not be influenced by particular perspectives, value commitments, community bias or personal interests, to name a few relevant factors.

In ela: Being the object or goal of one's efforts or actions. not influenced by personal feelings, interpretations, or prejudice; based on facts; unbiased: an objective opinion. ... being the object of perception or thought; belonging to the object of thought rather than to the thinking subject (opposed to subjective).

Step-by-step explanation:

-2/5 x 5/9 Make it a fraction please!

Answers

Answer:

-2/9

Step-by-step explanation:

Multiply both fractions: -10/45 and then simplify: -10 divided by 5 =-2

45 divided by 5 = 9

so....     -2/5 x 5/9 = -2/9

the quotient of 24.5 ÷ 0.8 and 245÷8 is equal to?​

Answers

Answer:

Step-by-step expla

24.5 by 0.8 =30.625

245 by 8 = Exact form is =245/8

                  desimal from is = 30.625

                   mixed number form is = 30 5/8  

approximate each irrational number to the nearest hundreth √32

Answers

Answer:

5.66

Step-by-step explanation:

sqrt(32) = sqrt(16 * 2) = 4 * sqrt(2) = 5.66

If m = 3 and b = 6, what is the correct slope intercept equation?
a. y = 3 - 6.
b. y = 3x - 6.
c. y = 3x + 6.
d. y = 6x + 3.

Answers

The answer is c because y=mx+b

Question 3
Consider the parallelogram below with an area of 672 cm?
9x-12
16

Answers

Answer:

Are of parallelogram = base * height

672 = b*h

or, (9x-12)* 16 =672

0r 9x-12 = 42

9x = 54

x=6

height =9x-12 = 54 -12 = 42

Step-by-step explanation:

Write an algebraic expression for each verbal expression: 1.) The product of 5 and twice a number x, decreased by the product of 3 and that same number. 2.) Twice the sum of a number x, and another number y, increased by the product of the first number squared and 8

Answers

Answer:

1) (5 times 2x) - (3 times 2x)

2) x+y) times 2 + (x*2 times 8)

explanation:

for "times" put a multiplication sign and the astric ( * ) is for the exponent or meaning "to the power of"  :)

The first equation will be formed as:  [tex](5 times 2x) - (3 times 2x)[/tex]

The second equation will be performed as [tex](x + y) times\ 2 + (x*2 \ times 8)[/tex]

What is multiplication?

When you take a single number and multiply it by several, you are multiplying. There are a number of distinct indications of amplification that people utilize. The "x" sign represents the most typical, however other symbols like the "*" sign are also occasionally used.

1.) The composition of 3 and that identical number, multiplied by 5, lowered by the products of 5, and double that amount will be represented as (5 times 2x) - (3 times 2x)

2.) The product of the square root of the first variable and eight times a quantity x and a quantity will be represented as (x+y) times 2 + (x*2 times 8)

Learn more about multiplication, Here:

https://brainly.com/question/24327297

#SPJ2

Identify all properties being shown: (5x^3 + 2) + 7x^2 = (7x^2 + 5x^3) + 2

Answers

Answer:

No solutions

Step-by-step explanation:

5x^3 + 2 + 7x^2 = 7x^2 + 5x^3 +2

125x + 2 + 49x = 49x + 125x + 2

-125x                             -125x

2 + 49x = 49x + 2

-2 -49x    -49x  -2

0 = 0

Hope this helped :)

What is true about the relationship between miles and gallons?
gallons 2
4
8
miles
30
60 90
120
K

Answers

Answer:

It is a linear relationship

Define Complementary and Supplementary Angles.

Answers

Answer:

Complementary angles: the angles whose sum is 90° are called complementary angles.

Supplementary angles: the angles whose sum is 180° are called supplementary angles.

Step-by-step explanation:

hope it might help....

Find the zeros of f(x) = -x + 9x – 18.

Answers

Answer:

x=2.25

x= 9/4 x=2 1/4 x= (3/2)^2 these are all possible answers in different forms.

Step-by-step explanation:

What is the next term of the geometric sequence?
2, 10, 50,

Answers

Answer:

5

Step-by-step explanation:

2*5=10

10*5=50

Answer:

250

Step-by-step explanation:

as it raises it it multiplying by 5

How do you work out the gradient of a line?

Answers

Step-by-step explanation:

The gradient of the line = (change in y-coordinate)/(change in x-coordinate) . We can, of course, use this to find the equation of the line. Since the line crosses the y-axis when y = 3, the equation of this graph is y = ½x + 3 . To find the gradient of a curve, you must draw an accurate sketch of the curve.

WILL DO BRAINLIEST IF RIGHT ASAP Evaluate the expression for r = –2. –40(–31 − 16r)2 + r2 =

Answers

Answer: -36

Step-by-step explanation:

To evaluate the expression, you want to plug in r to solve.

-40(-31-16(-2))²+(-2)²              [parenthesis]

-40(1)²+(-2)²                             [exponent]

-40+4                                       [add]

-36

Now we know the expression is equal to -36 when r=-2.

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve 2s^3 - 4r^2 = if r = 1 and s = 5

Answers

The Value of the expression 2s³ - 4r² by substituting the given values into the expression is 246

Given the equation ; 2s³ - 4r²

Value of r = 1 ; value of s = 5

To solve, substitute the values of r and s into the equation :

2(5)³ - 4(1)²

2(5 × 5 × 5) - 4(1 × 1)

2(125) - 4(1)

250 - 4

= 246

Therefore, the final value of the expression by substituting the value of r and s as 1 and 5 respectively is 246

Learn more : https://brainly.com/question/23774048

if someone has 18 candy boxes then eats all 18 what do they have

Answers

Answer:

They have no more candy

Answer:

diabetes

Step-by-step explanation:

3^2 – 2:3+ x = (3^3 – 3.8) (2) + x

Answers

Answer:

x+46.4

Step-by-step explanation:


Solve using standard algorithm 7.3+2.8

Answers

the answer should be 10.1

the dots above are

4
16
56
PLEASE HURRY

Answers

Answer:

Equation 1

hope this helps

NEEDING SMART PPL PLEASE I NEED HELP will give brainly Given the following expressions:
A. 5^3· 5^-4 B. 3^5/3^-6
C. (1/4)^3 · (1/4)^2
D. (-7)^5/(-7)^7
Part 1: Use operations of exponents to simplify each expression (A-D). Include your work in your final answer.

Part 2: For each simplified expression (A-D), tell whether or not the expression has a value between 0 and 1. please write in your own words

Answers

Answer:

Part 1:

a. 5^3 x 5^-4 = 125 x 1/(5)^4 = 125 x 1/625 = 125/625 = 0.2b. 3^5/3^-6 = 3^5 x 3^6 = 243 x 729 = 177147c. (1/4)^3 x (1/4)^2 = 1/64 x 1/16 = 1/1024 = 0.00097656d. (-7)^5/(-7)^7 = -16807/-823543 = 1/49 = 0.02040816...

Part 2:

a. has a value between 0 and 1 because the answer to the expression is 0.2b. does not have a value between 0 and 1 because the answer to the expression is 177147c. has a value between 0 and 1 because the answer to the expression is 0.00097656d. has a value between 0 and 1 because the answer to the expression is 0.02040816...

There were 52 problems on Petunia's last math test. She got
one-fourth of them wrong. How many questions did she get right?

Answers

Answer:13

Step-by-step explanation:

Simplifying expressions, I just need questions 8-18... help me please

Answers

1.) 3x-11
2.) -18x-35
3.) 13x+8
4.) -28x-16
5.) -7x+23
6.) -2x-57
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