Answers
Answer:
not a real number
Step-by-step explanation:
any negative number under a square root sign, except for 0, isn't real
On evaluating the given roots,
(a) [tex]$-(\sqrt[3]{8}) = -2$[/tex]
(b) [tex]$\sqrt[4]{-81}$[/tex] is not a real number
(a) [tex]$-(\sqrt[3]{8})$[/tex]:
The cube root of 8 is the number that, when raised to the power of 3, equals 8. In this case, the cube root of 8 is 2, because [tex]2^3 = 8[/tex].
Since we have a negative sign in front of the cube root, the result will be the negative value of the cube root of 8.
Therefore, [tex]$-(\sqrt[3]{8}) = -2$[/tex].
(b) [tex]$\sqrt[4]{-81}$[/tex]:
The fourth root of a number is the number that, when raised to the power of 4, equals the given number.
In this case, we are looking for the fourth root of -81.
However, the fourth root of a negative number is not a real number. This is because raising a positive number to an even power (in this case, 4) will always result in a positive value, and there is no real number that, when raised to the power of 4, gives a negative result.
Therefore, the fourth root of -81 is not a real number.
To know more about roots, refer here:
https://brainly.com/question/12105008
#SPJ2
Related Questions
PLS HELP
The graphs below shows some properties of regular polygons.
When compared with the independent variable, how many of the graphs represent a linear relationship?
0
1
2
3
Answers
Answer:
2
Step-by-step explanation:
I believe it is 2 sorry if you get it wrong.
Answer:
2 are linear
Step-by-step explanation:
They create a straight line when a line is drawn through the points
Fill in the missing number. % of 30 = 3
Answers
Answer:
Answer is 10% of 30 = 3
Anyone know the answer?
Answers
Answer:
41
Step-by-step explanation:
Since it is only being reflected, the letters would match up with their primes and still equal the same amount for the sides. Since B'C' is 41, it would mean that BC is 41 too
The average number of points a basketball team scored for three games was 63 points. In the first two games they scored the same number of points which was 6 points more than they scored in the third game. Write and solve an equation to find the number of points the team scored in each game.
Answers
Answer:
First Game: 65 points
Second Game : 65 points
Third Game : 59 points
Step-by-step explanation:
Average = sum of values/number of values
The number of values = 3, an d average = 63
63 = x/3
63 * 3 = x
189 = x
Now 189 is the sum of points over two games.
Their first two games are worth the same, so lets call that s +s = 2s
Their 3rd game is worth 6 less points than s, so s-6
let's add up all the terms:
2s + (s - 6) = 3s - 6
Solve:
3s - 6 = 189
3s = 195
s = 65
The first two games are worth 65, and the third game is worth 65 - 6 = 59.
-Chetan K
Answer:65, 65 and 59
Step-by-step explanation:
If represented by x and y, (2x+y)/3=63
So 2x+y=189
So if x=y+6
Put the value of x into the equation
2x + y = 189
2(y + 6) + y = 189
2y + 12 + y = 189
3y = 189 - 12
3y = 177
y = 177/3
y = 59
Therefore, x = y + 6 = 59 + 6 = 65
Which pair of angles are congruent?
A. 4 and 5
B. 1 and 7
C. 2 and 5
D. 6 and 8
Answers
Answer:
B: 4 and 5
Step-by-step explanation:
I'm not 100% sure but all of the other angles don't look congruent
because they are alternate interior angles
hi please i need the complete step-by-step solution. thank you ❤️
Answers
The first five terms of a geometric sequence are 5, 10, 20, 40, 80.
A geometric sequence is also known as Geometric Progression (GP) is a non-zero numerical series whereby each term succeeding the very first is determined by multiplying the preceding one by a fixed, non-zero value designated as the common ratio.
It can be expressed by using the formula:
[tex]\mathbf{a_n = ar^{n-1}}[/tex]
where;
[tex]\mathbf{a_n=}[/tex] [tex]\mathbf{n^{th}}[/tex] term of the sequencea = first termr = common ratioGiven that;
the first term a₁ = 5the common ratio r = 2∴
The second term of the sequence is:
[tex]\mathbf{a_2 = 5 \times 2^{2-1}}[/tex]
[tex]\mathbf{a_2 = 5 \times 2^{1}}[/tex]
[tex]\mathbf{a_2 = 10}[/tex]
The third term of the sequence is:
[tex]\mathbf{a_3 = 5 \times 2^{3-1}}[/tex]
[tex]\mathbf{a_3 = 5 \times 2^{2}}[/tex]
[tex]\mathbf{a_2 = 20}[/tex]
The fourth term of the sequence is:
[tex]\mathbf{a_4 = 5 \times 2^{4-1}}[/tex]
[tex]\mathbf{a_3 = 5 \times 2^{3}}[/tex]
[tex]\mathbf{a_4 = 40}[/tex]
The fifth term of the sequence is:
[tex]\mathbf{a_5 = 5 \times 2^{5-1}}[/tex]
[tex]\mathbf{a_3 = 5 \times 2^{4}}[/tex]
[tex]\mathbf{a_4 = 80}[/tex]
Learn more about the Geometric sequence here:
https://brainly.com/question/1509142
Select true or false to tell whether the following conditional pq is true or false. Use the truth table if needed. If 3 · 2 = 5, then 6 0. TrueFalse
Answers
Answer:
that's false
Step-by-step explanation:
3.2 is like 3x2 which equals 6
Hope this helps sorry if i'm wrong loll
If there are four black kittens and two orange kittens, suppose each section of the tape diagram represents 2 kittens rather than one kitten. Will that change the comparisons in parts A and B? Why or why not?
Plz help it’s my last question for now
Answers
Answer:
no, you're just simplifying the fraction.
Step-by-step explanation:
4/6=2/3
Which inequality symbol would you use to represent the following words or phrases? Can you come up
with more examples?
b. farther than
C. younger than
d. up to
a. at most
Answers
Answer:
C
Step-by-step explanation:
sana maka tulong
i purple u
URGENT!!
Please divide this polynomial
Answers
i used polynomial division.. i hope this helps :)
Answer:
ANSWER IS IN THE ATTACHMENT!!Step-by-step explanation:
HOPE IT HELPS YOU!!so i'm doing pre-algerbra and i'm doing whole numbers-dividing. and the directions says "divide. check your work by multiplying" and the first problem is 63 divide by 7 but how do i check it by multiplying? help me pls im getting so frustrated.
Answers
given two numbers, write narrative algorithms explaining how you would use them to carry out subtraction, multiplication and division operations.
Answers
Step-by-step explanation:
0 and 1. is better according to me
4(w+3)-7w=24 solve for w.
Answers
Answer:
w= -4
Step-by-step explanation:
Distribute to get 4w+12-7w=24
then combine like terms
-3w+12=24
isolate the variable (minus 12)
-3w=12
w= -4
W+3-7W=6
-6W=3
W=-1/2
Find the equation of the line with slope = -8 and passing through (9,-73). Write your equation in the form
y
=
m
x
+
b
y
=
m
x
+
b
.
Answers
Answer:
y = - 8x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Here m = - 8 , then
y = - 8x + c ← is the partial equation
To find c substitute (9, - 73 ) into the partial equation
- 73 = - 72 + c ⇒ c = - 73 + 72 = - 1
y = - 8x - 1 ← equation of line
Which of the following is true?
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choice is A :
RT is an altitude of Triangle QRSAnswer:
A, because ∆ QRS isn't a right angled triangle unlike the other choices and its height is in the middle,the rest of the choices are right angled and the line segments in the choice are all their hypotenuse,and the hypotenuse of a triangle isn't it's height
5 ( 3 - x ) < -2x + 6
Answers
inequality form: x>3
interval form: (3,infinity)
Step-by-step explanation:
Answer:
x>3
Step-by-step explanation:
okay so I think it's 30 pages and her mom isn't correct, but I've done this assessment multiple times and I don't wanna take it again after this, so please tell me if my answer is correct or not because I really wanna make sure
Answers
Answer: 30
Step-by-step explanation: You should be correct because 1.5*20=30
please help ill mark brilliant
Answers
The equation that would go with this graph would be: y = 2x + 0
Find the angle
25 points plus a thanks, 5 star and brainliest
Answers
In the right angle :
The sine is equal to the opposite side than the hypotenuse
Sin ? = 34/41
= arc sin 34/41
Answer:
[tex]x = 56.02 \degree[/tex]
Step-by-step explanation:
To find the angle you have to use sin rule
[tex] \sin( \theta) = \frac{opposite}{hypotenuse} [/tex]
Let the unknown angle be x
[tex] \sin(x) = \frac{o}{h} \\ \sin(x) = \frac{34}{41} \\ \sin(x) = 0.8292 \\ x = \sin ^{ - 1} 0.8292 \\ x = 56.02 \degree[/tex]
Hope this helps you
Let me know if you have any other questions :-):-)
An item costs 340 before tax, and the sales tax is 20.40.
Find the sales tax rate. Write your answer as a percentage.
Answers
Answer:
Step-by-step explanation:
To find out the sales tax rate, we divide the sales tax by the cost of the item. This will give us what percent of the cost of the item the sales tax is equal to.
So, 20.4 divided by 340 = 0.06
To convert to percent, we multiply 0.06 by 100=6. Therefore, the sales tax rate is 6%.
Check:
340 times 0.06 (the sales tax rate) is 20.4 (the sales tax).
HELP!!
how do we find x
every side is different
Answers
Answer:
45degres
Step-by-step explanation:
Answer:
55+45+X=180
X=180-100
X=80
Step-by-step explanation:
Add
Inverse the sum of 55 and 45
Then subtract
Use words to write 521,000,000,000
Answers
five hundred twenty-one billion
(2a-b) * (a-2b)
(4x - 2) * (x -4)
Answers
Q: (2a-b) * (a-2b)
[tex](2−)(−2)[/tex]
[tex]2(−2)+(−2)(−)[/tex]
[tex]22−4+(−2)(−)[/tex]
[tex]22−4−(−2)⋅[/tex]
[tex]22−4+22−⋅[/tex]
Q: (4x - 2) * (x -4)
[tex](4−2)(−4)[/tex]
[tex]4(−4)−2(−4)[/tex]
[tex]42−16−2(−4)[/tex]
[tex]42−16−2+8[/tex]
[tex]42−16−2+8[/tex]
[tex]42−18+8[/tex]
[tex]42−18+8[/tex]
Hope its help you !!
(2a-b)(a-2b)
=2a^2-4ab-ab+2b^2
=2a^2-5ab+2b^2
I’ll break it down more with the second equation. Remember that ^2 means squared.
(4x-2)(x-4)
First: 4x*x= 4x^2
Outside: 4x*-4=-16x
Inside: -2*x=-2x
Last: -2*-4=8
Now let’s put the answers together in one equation.
4x^2-16x-2x+8
Now we will combine like terms.
4x^2-18x+8
Write a equation given the point and slope or two points
17.) (-5,-11) and (-2,1)
18.) (-6,8) and (3,-7)
Please
Answers
18. (-7-8) / 3-(-6) = -15/9 = -5/3
3+5n=5(n+2)-7 how many solutions
Answers
13. Cynthia, Chris, and Lexi paint houses. Cynthia can paint a house in 6 hours. Chris
can paint the same house in 5 hours. The three working together can paint the house
in 2 hours. How many hours does it take Lexi to paint the house?
Answers
Answer:
13
Step-by-step explanation:
❤️❤️❤️❤️❤️
The function h(t)=400-16t^2 gives the height of the supply bundle (in feet) t seconds after it is dropped from a height of 400 feet.
a. Find the derivative of this function at the point (3,256).
b. What does your answer tell you about the speed at which the supply bundle is falling?
Answers
Answer:
i think its A i may be wrong
The answers are :
a) The derivative of this function at the point (3,256) is -96.
b) The speed at which the supply bundle is falling is negative.
What is derivative ?
Derivative is the slope of the graph of function or the slope of the tangent line at a point.
A function is given which is h(t) = 400 - 16t².
Here , h(t) gives the height of the supply bundle in feet , t seconds after it is dropped from a height of 400 feet.
a)
We have to find out the derivative of the given function at a point (3,256).
h'(t) = [tex]\frac{d}{dt}[/tex] (400 - 16t²)
h'(t) = 0 - 2 × 16 × t
h'(t) = -32 t
This function at (3,256) so , value of t is 3.
h'(t) = -32 × 3
h'(t) = -96
b)
Speed = -32 t
So , the speed at which the supply bundle is falling is negative. With increase in value of t it will keep decreasing.
Therefore , the answers are :
a) The derivative of this function at the point (3,256) is -96.
b) The speed at which the supply bundle is falling is negative.
Learn more about derivative here :
https://brainly.com/question/28527987
#SPJ2
Write in terms of inequalities: (-13,4]
Answers
9514 1404 393
Answer:
-13 < x ≤ 4
Step-by-step explanation:
The round bracket means the lower limit is not included in the interval. The square bracket means the upper limit is included.
-13 < x ≤ 4
Renee bakes cake pops. Each of her cake pops weigh 334
3
3
4
ounces. She needs to ship a dozen cake pops and will need to tell the shipping company the weight of the pops. What weight should she tell the shipping company for a dozen cake pops?
Answer
Answers
Answer:45
Step-by-step explanation:
3 3/4 x 12 bc a dozen=12 u would get 45
The perimeter of a rectangle is 260 meters. The length is 50 meters greater than the width. Find the dimensions of the rectangle.
length:
width:
Answers
Answer:
Hold on, our servers are swamped. Wait for your answer to fully load.
Step-by-step explanation:
Hold on, our servers are swamped. Wait for your answer to fully load.