Answers
Answer:
a^7/8^2
Step-by-step explanation:
Here, we want to write the expression using only positive exponents
An important rule for indices to use here is that;
a^-b = 1/a^b
thus;
8^-2 = 1/8^2
So we have;
1/8^2 * a^7
= a^7/8^2
Related Questions
which equation shows a proportional relationship?
Answers
Answer:
Option D i.e. y = 1/2 x is the correct answer.
Step-by-step explanation:
We know that when 'y' varies directly with 'x', we get the equation
y ∝ x
y = kx
where k is the constant of proportionality.
In our case, the only equation which maps in accordance with y = kx is y = 1/2x.
i.e.
y = 1/2 x
here k = 1/2
Thus, k = 1/2 is the constant of proportionality.
Therefore, option D i.e. y = 1/2 x is the correct answer.
40)Find the slope of the line containing the points (5, -1) and (-8, -4).
A. 313
B. 133
C. −53
D. 53
Answers
9514 1404 393
Answer:
A. 3/13
Step-by-step explanation:
The slope formula is ...
m = (y2 -y1)/(x2 -x1)
Using the given points, this is ...
m = (-4 -(-1))/(-8 -5) = -3/-13 = 3/13
A train moves at a constant speed. The train travels 13 miles in 1/6hour What is the train's speed in miles per hour
Answers
Answer:
I think the answer is 78.
Answer:
Answer is 2
Step-by-step explanation:
Because The other answers dont punctuation and answer 2 explains as the president
The last one is y-2=-(x-4) sorry I couldn’t fit it all in
Answers
Answer:
y + 2 = (x - 2)
Step-by-step explanation:
From the graph, you can see that when y = 0, x = 2, and vise versa. Taking this into consideration, if y = 4, x = 2, so, the answer is y + 2 = (x - 2)
Which equation can be used to find the value for X?
Answers
Answer:
(3x-5) + 2x = 90
Step-by-step explanation:
We know that there are 180 degrees in a triangle. We also know that one angle is 90 degrees.
This means that (3x-5) + 2x = 90.
What is the solution to this system of equations? 5x + 2y= 29
x + 4y = 13
A x = 5, y = 3
B. x=2, y=5
C. X= 5, y = 2
D. x= 3, y = 2
Answers
Answer:
C
Step-by-step explanation:
Given the 2 equations
5x + 2y = 29 → (1)
x + 4y = 13 → (2)
Multiplying (1) by - 2 and adding to (2) will eliminate the y- term
- 10x - 4y = - 58 → (3)
Add (2) and (3) term by term to eliminate y
- 9x + 0 = - 45
- 9x = - 45 ( divide both sides by - 9 )
x = 5
Substitute x = 5 into either of the 2 equations and solve for y
Substituting into (2)
5 + 4y = 13 ( subtract 5 from both sides )
4y = 8 ( divide both sides by 4 )
y = 2
Solution is x = 5, y = 2 → C
Answer:
c) x = 5, y = 2
Step-by-step explanation:
Rhion sat maths and English test
In the maths she scores 14 out of 17
In th english test she scored 31 out of 39
which one did she do better.
Answers
Answer:
Rhion did better in maths test.
Step-by-step explanation:
Given that:
Rhion scored 14 out of 17.
We will find percentage and then compare them.
Percentage = [tex]\frac{Score}{Total\ marks}*100[/tex]
Percentage = [tex]\frac{14}{17}*100[/tex]
Percentage = 82.35%
Rhion scored 31 out of 39.
Percentage = [tex]\frac{31}{39}*100[/tex]
Percentage = 79.48
On comparing,
82.35 > 79.48
Hence,
Rhion did better in maths test.
Una persona invirtió $25000 en dos cuentas bancarias,una de estas paga el 5% y la otra el 6% de interés simple. Si la persona recibió $1440 en un año ¿que cantidad invirtió en cada cuenta?
Answers
Answer:
Esta persona invirtió $ 6000 a la cuenta bancaria que paga 5 % de interés simple anual y $ 19000 a la cuenta bancaria que paga 6 % de interés simple anual.
Step-by-step explanation:
Esta persona invierte [tex]x[/tex] a la cuenta bancaria que paga 5 % de interés simple anual y [tex]25000-x[/tex] a la cuenta bancaria que paga 6 % de interés simple anual. Recibe [tex]1440[/tex] como consecuencia de las ganancias de las dos cuentas, es decir:
[tex]\frac{5\cdot x}{100} + \frac{6\cdot (25000-x)}{100} = 1440[/tex] (1)
Ahora procedemos a resolver la ecuación resultante:
[tex]5\cdot x + 150000-6\cdot x = 144000[/tex]
[tex]150000-144000 = 6\cdot x - 5\cdot x[/tex]
[tex]x = 6000[/tex]
En consecuencia, esta persona invirtió $ 6000 a la cuenta bancaria que paga 5 % de interés simple anual y $ 19000 a la cuenta bancaria que paga 6 % de interés simple anual.
Which of the following amounts is greater than 3 quarts? Select all that apply.
A)2 pints, 1 cup
B) 1 gallon
C) 7 pints
D) 13 cups
E) 2 quarts, 3 pints
Answers
Answer:
its B
Step-by-step explanation:
because 4 pints is a quart and 4 quarts is a gallon and 16 cups in a gallon
X+3238-f385cdv/3 help me
Answers
Answer:
Thanks so much, let me know if you need help with hw or something :)
Answer:
Can't tell of this trolling or not
But I'll take the points?
Which of the following graphs shows a rate of change of zero?
Answers
Answer:
A.
Step-by-step explanation:
no slope, the line is just y = 4
Can someone help me please?
Answers
Answer:
-2 tiles
Step-by-step explanation:
In each figure, 5 tiles are added.
Subtract 5 from how many tiles are in Figure 2 (8 tiles) & you get 3.
3 is how many tiles are in Figure 1, meaning you need to subtract 5 again to see how many are in Figure 0! 3-5 = -2.
Hope this helps! x
19/10 equals x - 23/6
Please help me quickly!!!
Answers
Answer:
7 17/60
Step-by-step explanation:
you do 6x10 witch is 60 then you do 19 x 23 witch is 437 then divide that by 60 and that is 7 and you have 17 leftover
Guys pleasee help me "10 points"
Answers
Answer:
A
Step-by-step explanation:
What is 15 times 2/3
Answers
Answer:10
Step-by-s First of all, note that 15 is the same as 15/1 since 15 divided by 1 is 15. Therefore, start by setting up the problem like this
Step 2: Multiply
Multiply the numerators together (15 x 2 = 30) and multiply the denominators together (1 x 3 = 3) and make it into one fraction like so:
Step 3: Minimize
The greatest common factor of 30 and 3 is 3. Minimize the fraction by dividing the numerator and the denominator by its greatest common factor to get:
Step 4: Convert
Convert the improper fraction above to a whole number to get the answer:
That's it! Now you know how to calculate 15 times 2/3.
Find the difference (6d+5)−(2−3d)
Answers
Answer:
9d +3
Step-by-step explanation:
plz brainliestt
Answer:
9d+3
Step-by-step explanation:
(6d+5)-(2-3d)
First, I like to put a 1 in front of the second grouping of numbers to help me with the distributing:
(6d+5)-1(2-3d)
Distribute the -1:
(6d+5)-2+3d
Remove parenthesis and combine like-terms:
9d+3
The surface area of each face of a cube is (x
2 + 6x + 9) m2
Find an expression for the,
i. length of each edge
Answers
Answer:
length of each edge = (x + 3)
Step-by-step explanation:
The surface area of each face of the cube = ([tex]x^{2}[/tex] + 6x + 9) [tex]m^{2}[/tex]. But the surface of a cube has the shape of a square. So that,
Area of a square = length x length
= [tex]l^{2}[/tex]
By factorizing the area,
[tex]x^{2}[/tex] + 6x + 9 = [tex]x^{2}[/tex] + 3x + 3x + 9
= ([tex]x^{2}[/tex] + 3x) (3x + 9)
= x(x +3) + 3(x + 3)
= (x + 3)(x + 3)
= [tex](x + 3)^{2}[/tex]
[tex]x^{2}[/tex] + 6x + 9 = [tex](x + 3)^{2}[/tex]
Thus,
[tex](x + 3)^{2}[/tex] = [tex]l^{2}[/tex]
find the square root of both sides
l = (x + 3)
length of each edge = (x + 3)
PLZ HELP ME! THANK YOU PLZ
consider the system of equation below 4x-8y =12 11x+7y=33
Part A: The equation 2x – 4y = 6
-can be used to create an equivalent system.
-can’t be used to create an equivalent system.
Part B: The equation 22x + 7y = 33
-can be used to create an equivalent system.
-can’t be used to create an equivalent system.
Answers
Answer:
first part is can be used to create an equivalent system and second part is can’t be used to create an equivalent system i think
Answer:
first can
second cant
Step-by-step explanation:
heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp thx in advance :)
Answers
Answer:
After multiplying, we get two Pythagorean triples (sorry for not writing it all out, it's a really long process). With those, we can simplify down to 289/100
Can somebody please help me with these pleaseeeee!
Answers
Second one is 180-(120+24)= 36
If you could help I would really appreciate it, but if not that’s fine. Thank you.
Answers
x=4
so the answer is 4!
What does 6(4c-2) simplify as?
Help pleas
Answers
Step-by-step explanation:
[tex]\tt{ 6(4c-2) }[/tex]
[tex]\tt{ 24c-12 }[/tex]
how many vowels does Dwayne Johnson have in his name
Answers
Answer:
3
Step-by-step explanation:
a, e, and o
Answer:
4 vowels with but he has two o’s
Step-by-step explanation:
A ,y e, o,
I need help asap pls
Answers
Describe fully the single transformation which takes shape A to shape B
Answers
sorry sir i dont really know
Carlota’s smartphone contains 500 megabytes of data. She uses 300 megabytes for applications and the rest for music. If each song takes an average of 4 megabytes, which equations can be used to find the number of songs on Carlota’s smartphone? Select all that apply. A. 500−300=4n B. 500+300=4n C. 4n+300=500 D. 300−4n=500
Answers
Answer: A:500-300=4n and C:4n+300=500
Step-by-step explanation:
\cos (x-10\deg )=(\sqrt(3))/(2)
Answers
Answer:
40°
Step-by-step explanation:
[tex]\cos (x-10\degree )= \frac{ \sqrt{3} }{2} \\ \\ \cos (x-10\degree )=\cos 30\degree \\ \\ x-10\degree = 30\degree \\ \\ x = 30\degree + 10\degree \\ \\ x = 40\degree[/tex]
4. A one-year membership in a video rental club costs $10. Members pay $1.25 per video rental. You spend $45 in one year. How many videos did you rent?
how do u solve this????
Answers
Answer:
28 rentals
Step-by-step explanation:
$45-$10 membership=$35 on rentals at $1.25 each.
Then $35/$1.25=28 rentals
Help meee plesee.......
Answers
Answer:
it's A: Tuesday
Step-by-step explanation:
wensday - friday show a gradual increase in tempature. While monday and tuesday show a sharp increase.
Tuesday
Explanation:
There is the biggest amount of increase between Monday and Tuesday.
What is the number model
Answers
Answer:
A number model in math is a sentence that illustrates how the parts of a number story are related. The equation may include addition, subtraction, division and multiplication and may be expressed as words or in number form.
Step-by-step explanation:
Answer:
Sometimes abbreviated as model or model no., a model number is a unique number given to each product made by computer hardware manufacturers. Model numbers allow manufacturers to keep track of each hardware device and identify or replace the proper part when needed.
Step-by-step explanation: