Which choice is equivalent to the expression below?
V-12
A. -24/5
B. 2123
C. -121
D. 231
E. 12 i
Given:
Consider the expression is [tex]\sqrt{-12}[/tex].
To find:
The value of given expression.
Solution:
We have,
[tex]\sqrt{-12}[/tex]
It can be written as
[tex]\sqrt{-12}=\sqrt{-1\times 12}[/tex]
[tex]\sqrt{-12}=\sqrt{-1}\times \sqrt{12}[/tex] [tex][\because \sqrt{ab}=\sqrt{a}\sqrt{b}][/tex]
[tex]\sqrt{-12}=i\times \sqrt{12}[/tex] [tex][\because \sqrt{-1}=i][/tex]
[tex]\sqrt{-12}=\sqrt{12}i[/tex]
Therefore, the value of given expression is [tex]\sqrt{12}i[/tex].
Note: all options are incorrect.
the sum of the first 20 positive odd integers
Answer:
[tex]400[/tex]
Step-by-step explanation:
[tex]We\ know\ that,\\'The\ sum\ of\ n\ no.\ positive\ odd\ integers\ is\ given\ by\ the\ formula:\\S_O=n^2\\Hence,\\Here,\\As\ n=20,\\The\ sum\ of\ the\ first\ 20\ positive\ odd\ integers=20^2=400\\[/tex]
Evaluate the expression shown below and write your answer as a fraction in simplest form.
11/2 + 5/4
The width is 5.2 cm and the area is 54.6 cm?
The rectangle is not drawn to the exact measurements.
Answer:
The length is 22.1
Step-by-step explanation:
5.2 + 5.2 + 22.1+ 22.1 = 54.6
The specification for the length of a boat is 4.75 inches. Machine is makes a boat that is 4.769 inches long. What is the percent error of the bolt’s length?
Which of the changes would keep the hanger in balabce? Select all that apply. (Answers in screenshot)
Answer: Add two circles to the left and a square to the right
Step-by-step explanation:
Multiply the binomials: (3x + 8)(x – 3)
A. 3x2 – 17x – 24
B. 3x2 – x – 24
C. 3x2 – x + 24
D. 3x2 + x + 5
Answer:
The answer is =3x2−x−24 which is the choices B.
Step-by-step explanation:
(3x + 8)(x – 3)
=3x2−x−24
The proportional relationship between the number of inches a candle has burned away, b, at any time in hours, t, can be represented by the equation b = 0.25tb=0.25t. What is the constant of proportionality from the time in hours to the inches of candle that has burned away?
Answer:
k = 0.25t^2
Step-by-step explanation:
Given the equation :
b = 0.25t
b = number of inches that has burned away
t = time
From our knowledge of variation;
Since candle length will decrease with time ;
b α 1/ t
b = k/t
Where k is the proportionality constant
Comparing the equation :
b = 0.25t
k/t = 0.25t
k = 0.25t^2
what is the value of x ?
Answer:
d
Step-by-step explanation:
Can somebody please help?
Answer:
A. Juan wins the race
B. At about 7 minutes J(t )= A(t)
C. 2 minutes
Step-by-step explanation:
A. Juan wins the race. This is because she covers the distance in a shorter time interval than Antonio
B. At about 7 minutes J(t )= A(t). to get this, just look at the point that the two curves intersect on the graph, and trace it down to the time axis to read off the time.
C. J(t) is greater than A(t) with about 2 minutes. To get this, we just subtract the time Juan arrived at the finish line from the time Antonio arrived, this is = 15 -13 = 2 minutes
What is 1.25 in standard form?
Answer:
5/4 since 125/100 = 5/4
Step-by-step explanation:
What is the value of the expression
y(1/2+z)+6
When y=2 and z=3/4
A 57/8
B 19/2
C 17/2
D 22/3
Answer:
c. 17/2
Step-by-step explanation:
y(1/2 + z) + 6
2 (1/2 + 3/4) + 6
1 + 6/4 + 6
find common denominator
4/4 + 6/4 + 24/4 = 34/4 reduced to 17/2
Which of the following represents the set of possible rational roots for the
polynomial shown below?
x2 + 5x2 – 3x – 20 = 0
Answer:
6x2−3x−20
Step-by-step explanation:
Let's simplify step-by-step.
x2+5x2−3x−20
=x2+5x2+−3x+−20
Combine Like Terms:
=x2+5x2+−3x+−20
=(x2+5x2)+(−3x)+(−20)
=6x2+−3x+−20
Select all the equations for which y = 9 when x = -1.
what is 9.4 rounded to the nearest tenth?
Answer: the answer is going to be 9
Answer:
9.4 rounded to the nearest 10th - 9
Step-by-step explanation:
If the tenth in the decimal is 4 or lower, (like 9.4 or 9.3) It would round down to 9, but if it were 5 or higher like (9.5) it would be 10.00 or 10 :)
In ΔCDE, m ∠ C = ( x − 4 ) ∘ m∠C=(x−4) ∘ , m ∠ D = ( 11 x − 11 ) ∘ m∠D=(11x−11) ∘ , and m ∠ E = ( x + 13 ) ∘ m∠E=(x+13) ∘ . Find m ∠ C . m∠C.
Answer:
<C =10°
Step-by-step explanation:
The sum of angles in a triangle is 180°. Hence,
<C+<D+<E =180
Given
<C =x-4
<D = 11x-11
<E = x+13
Substitute
x-4+11x-11+x+13 = 180
13x-2 = 180
13x =180+2
13x = 182
x = 182/13
x = 14
Get <C
Since <C = x-4
<C = 14-4
<C =10°
Answer: <C =10°
Step-by-step explanation:
What is the value of b?
Answer:
128
Step-by-step explanation:
Add the two numbers then subtract from 360
Write the following ratio using two other notations. 6:7 Use only the numbers above (not any others). Notation one: Notation two: . X
what is the answer?
9514 1404 393
Answer:
6/76 to 7 (some authors would write this "6 is to 7")Step-by-step explanation:
The commonly used symbols for ratios are a colon or a fraction bar. Words can also be used.
6 : 7 = 6/7 = 6 to 7
__
When the ratio is part of a proportion, then it might be written ...
6 is to 7
as in ...
6 : 7 :: 12 : 14 . . . . . . . 6 is to 7 as 12 is to 14
What is 320/11 pls help
Answer:
= 29.09
thats the answer
Which statement best represents the equation below 10+(-10) =0
Answer:
im not sure if this is the answer you wanted hope it helped though
Step-by-step explanation:
Applying the BODMAS rule where B=Brackets ,O=of,D=Division,M=multiplication,
A=Addition,S =subtraction
For any equation in which multiple operation is to be done its depends on the preference of the operation to be performed.
The preference followed is BODMAS
In the above question first multiplication will be performed first and then the addition is performed.
10+10*0+10
10+0+10
Answer is 20
Answer:
D. a car goes 7 feet and then reversed 7 feet.
Step-by-step explanation:
The statement above can be set up in a simple equation.
7 - 7 = 0
This can best represent the equation 10 + (-10) = 0, because they both end up with the same result.
10 + (-10) = 10 - 10 = 0
Cameron needs to order some new supplies for the restaurant where he works. The
restaurant needs at least 598 spoons. There are currently 194 spoons. If each set on
sale contains 8 spoons, write and solve an inequality which can be used to determine
x, the number of sets of spoons Cameron could buy for the restaurant to have enough
spoons.
Answer:
Inequality: 8x+194_>598
Answer:x_>50.2
Step-by-step explanation:
I have delta math! I risked getting the answer wrong for this question lol. But this is correct just!
404 spoons are required for the restaurant for the fill needs.
What is inequality?A difference between two values indicates whether one is smaller, larger, or basically not similar to the other.
A mathematical phrase in which the sides are not equal is referred to as being unequal. In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.
Inequality is just the opposite of equality for example 2 =2 then it is equal but if I say 3 =6 then it is wrong the correct expression is 3 < 6.
Let's say the number of sets required = x
Then,
8x will be the total number of spoons.
So,
8x + 194 ≥ 598
8x ≥ 404
x ≥ 50.5
A number of spoon required = 50.5 × 8 = 404 spoons.
Hence "404 spoons are required for the restaurant for the fill needs".
For more about inequality,
brainly.com/question/20383699
#SPJ2
1.2(4x – 1) = 8x – 2
2(4x – 1) = –8x – 2
whats the solution :one , infently, or no solutions
6x
Step-by-step explanation:
1.2(4x-1)=8x-2=6x
I think of a number. I take away 14. The result is 13. What number am I thinking of?
Answer:
27 :)
Step-by-step explanation:
Answer:
27!
Step-by-step explanation:
HELP please, will give brainliest
As we know that
Diagonal of square = √2 ( side of square )So , we need to find side of square first
Using area of square = Side²
➩ 144 = S²
➩ S = √144
➩ Side = 12 cm
Now ,
➨ Diagonal = √2 ( 12 )
➨ Diagonal of square = 12√2
Type the missing number in this sequence
Answer:
58
Step-by-step explanation:
follow the pattern. The pattern is to take away 10, for each subsequent number.
What is the distance between point A and point B?
Answer:
81
Step-by-step explanation:
An airplane cover 94 miles in 1/6 of an hour
Answer:
14.16
Step-by-step explanation:
Do 1/6 of 94 and you get this answer
5.
Find the slope.
7x- y=-4
a) -1/7
b) 1/7
c) -7
I d) 7
Answer:
D. 7
Step-by-step explanation:
Answer:
kakaakasksjnxznxccchjvgv
Step-by-step explanation:
Hi!!! People have been giving out points all day and i thought i would have a turn!! (30 points) I’ll give the crown to whoever is nicest in their answer!!! Happy holidays :)
Answer:
hi, hope you are good!, hope you have the greatst holidays ever!
Step-by-step explanation:
Answer:
aww thank you, u are too kind :) I appreciate that u are generous enough to give free points to people, I thank you for your generosity. Happy holidays and stay safe <333
Step-by-step explanation:
Use the quadratic formula to solve for x. 4x2 +9x-1=0
Answer:
[tex]x=\frac{-9\pm\sqrt{65} }{8}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Step-by-step explanation:
Step 1: Define
4x² + 9x - 1 = 0
Step 2: Define variables
a = 4
b = 9
c = -1
Step 3: Find roots
Substitute: [tex]x=\frac{-9\pm\sqrt{9^2-4(4)(-1)} }{2(4)}[/tex]Exponents: [tex]x=\frac{-9\pm\sqrt{81-4(4)(-1)} }{2(4)}[/tex]Multiply: [tex]x=\frac{-9\pm\sqrt{81-16} }{8}[/tex]Subtract: [tex]x=\frac{-9\pm\sqrt{65} }{8}[/tex]