Answer:
We conclude that:
[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]
Step-by-step explanation:
Given the radical expression
[tex]\sqrt{\left(-81\right)x^2}[/tex]
simplifying the expression
[tex]\sqrt{\left(-81\right)x^2}[/tex]
Remove parentheses: (-a) = -a
[tex]\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}[/tex]
Apply radical rule: [tex]\sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]
[tex]=\sqrt{-1}\sqrt{81x^2}[/tex]
Apply imaginary number rule: [tex]\sqrt{-1}=i[/tex]
[tex]=i\sqrt{81x^2}[/tex]
Apply radical rule: [tex]\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0[/tex]
[tex]=\sqrt{81}i\sqrt{x^2}[/tex]
[tex]=9i\sqrt{x^2}[/tex]
Apply radical rule: [tex]\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]
[tex]=9ix[/tex]
Therefore, we conclude that:
[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]
Vhich of the equations below represents a line parallel to the x-axis?
A. y = 3
B. y = X
C. y = 1/x
D. x = 3
a circle has an area of 80 square centimeters. which answer is the closest to the measure of its radius?
Answer:
the answer is 5 cm
Step-by-step explanation:
because of substitution.
80=pi*r^2
Someone please help me quick I’m timed
PLIS HELPPP I DON'T UNDERSTAND THIS
Answer:
Step-by-step explanation:
7 blue socks and 6, 5, 8 of non-blue socks. If you add the numbers of non-blue socks you get 19. Blue socks to non-blue would be 7:19
Answer:
The ratio is 7 to 19 or 7:19
Step-by-step explanation:
Since there are 7 blue socks and other colors are not blue we add the number of other colors. So basically 8+5+6= 19 and then 7 blue socks :)
(4 + 2n) + (513 + 2).
Answer:
2n + 519
Step-by-step explanation:
Hope this helps! :)
Good luck♥
What is an algebraic expression for "41 more than y "?
What is the answer to y + 6 = 20
Answer:
y=20-6=14
Step-by-step explanation:
14 is the answerrrrrr...
Joseph is saving his money. He currently has $5, and his dad gives him $2 each week. Which type of function would best represent?
Answer:
d) linear
Explanation:
Since Joseph is always getting the same amount of money the function will be linear.
Puzzle Four
It's Friday and you are leaving school. You are going to the pizza palace and
then the movies with your friends. After the movies you go home and
Saturday you wake up to spend the day at the park and then go to the
school to play on the basketball court. After a very active day you go home
to sleep. Determine the total distance you traveled on Friday and Saturday
if you always took the most direct route (HINT: Find the hypotenuse). Each
cell on the graph represents one mile. The total distance traveled will
unlock puzzle fourl Round all your answers to the nearest hundredth
Mall
School
Pizza Palace
Home
Park
Movis
Theatre
Answer:
is it 49
Step-by-step explanation:
Answer:
49
Step-by-step explanation:
Will give Brainliest!!!
What is the y=mx+b of the equation 5x−2y=16
what is the slope of graph Pls Help
Answer:
The slope is 1/2
i believe
Step-by-step explanation:
Use the rise/run method
What equation represents the slope intercept form of the line below Y intercept =(0,-2) slope = 2/3
Answer: [tex]y = \frac{2}{3} x - 2[/tex]
Step-by-step explanation:
The slope intercept form is y = mx + b
Where m is our slope and b is our y-intercept
We're given a slope of 2/3
We're given a y-intercept of -2
Substituting into y = mx + b gives
[tex]y = \frac{2}{3} x - 2[/tex]
Answer:
y = (2/3)x - 2
Step-by-step explanation:
Use the slope-intercept form y = mx + b. Here b = -2 and m = 2/3. Making these replacements, we get:
y = (2/3)x - 2
Please I need help here
Answer:
a
Step-by-step explanation:
Complete this sentence: The sign of a positive number divided by a negative number is always ____________________.
Answer:
Step-by-step explanation:
Negative
Someone please help and make sure it’s right I have an f right now :(
Qué características tiene un rombo
Answer:
Un rombo es cualquier paralelogramo con cuatro lados congruentes, cuatro ángulos y cuatro vértices. Tiene la forma de un diamante y una cometa
Part A:
Sheronda uses 1 3/4 cups of sugar in every batch of homemade muffins she makes. One day, while making muffins for her son's bake sale, she used 19 1/4 cups of sugar in all. How many batches of muffins did she make?
A)34
B)19
C)13
D)11
PLz, help I really don't understand these problems at all.
Click here to see the screenshot
Answer:
1. $65,000
2. A 4 and 2 mile hike
3. B 4.00
4. C multiplication
Step-by-step explanation:
use the distributive property to find two expressions that are equivalent to 7(3x - 4)
please help me i cant do this anymore, i'm having a panic attack and this is all due in 4 hours
help please, I'll give brainliest :< to whoever can answer and give the solutions
Answer:
3. Fifteen weeks
Step-by-step explanation:
well if you subtract the 4000 from the 10000 you get 6000 and then divide 6000 by the 400 and you get 15
Solve each problem. Explain or show your reasoning.
What is 25% of 160?
What is 39% of 200?
What is 150% of 32?
13 is 50% of what number?
18 is 120% of what number?
21 is what percentage of 30?
I NEED HELP
HURRY IM ON A TIME LIMIT WILL MARK YOU BRAINLIEST
Answer:
10
Step-by-step explanation:
Answer:
MP equals 10
Step-by-step explanation:
PLEEASEEE HELP ME NOONE WILL HELP ME PLEASE HELP ME
Answer:
63.97 sheets of paper
Step-by-step explanation:
40-18.25 = 21.75
21.75 divided by 0.35 = 63.97
SOMONE PLEASE HELP ME ASAPPPPPPPP!!!!!!!!! I WILL GIVE YOU A GOOD RATE AND MARK YOU THE BRAINLIEST JUST ANSWER THIS CORRECTLY AND ASAPPPPP!!!!!!! PLEASE!!!!!!!!!
What is the length of r and t ?
The quotient of a number and two is increased by seven. The result is eleven. What is the number?
9
2
8
1
Answer:
C
Step-by-step explanation:
8 is the correct answer.
Answer:
8
Step-by-step explanation:
Please help it’s very a grade I Will give you Brainly if right
Slove (3x-2)=(2x-1)/(2) show step by step
Answer:
x= 3/4
Step-by-step explanation:
[tex](3x - 2) = \frac{(2x-1)}{2}[/tex]
2(3x - 2) = (2x - 1)
6x - 4 = 2x -1
4x = 3
x= 3/4
Answer:
x=3/4
Step-by-step explanation:
Remove parentheses.
3x-2=\frac{2x-1}{2}3x−2=22x−1
Multiply both sides by 22.
6x-4=2x-16x−4=2x−1
Add 44 to both sides.
6x=2x-1+46x=2x−1+4
Simplify 2x-1+42x−1+4 to 2x+32x+3.
6x=2x+36x=2x+3
Subtract 2x2x from both sides.
6x-2x=36x−2x=3
Simplify 6x-2x6x−2x to 4x4x.
4x=34x=3
Divide both sides by 44.
x=\frac{3}{4}x=43
What is the slope intercept ?
Answer:
y=mx+b
Step-by-step explanation:
that is the equation
Is the square root of 7 minus the square root of 7 a rational number?
Answer:
No
Step-by-step explanation:
Forgive me if i'm wrong lol
so the square root of 7 is 2.64, 2.64 minus 2.64 is 0, and it is not rational since it can't be written as a fraction.
dont hate me if im wrong im so sorry <3