Answers
Answer:
a) 7
b)64
c)2
Step-by-step explanation:
look at images
Answer:
x = 2
Step-by-step explanation:
The topic here is "fractional exponents."
Review: 2^3 = 8 (this is the cube of 2), and so the inverse function is
8^(1/3) = 2 ("8 raised to the fractional exponent 1/3 is 2"
Question a) 49^(1/2) ("49 to the power 1/2") can be rewritten as
(7^2)^(1/2), which simplifies to 7^(2*1/2) = 7^1 = 7
Caution: this is exponentiation, not division. So 49^(1/2) does not equal 49/2.
Question b) ( )^(1/3) = 4
I would prefer to write this as x^(1/3) = 4 and set the goal of finding the value of the base, x.
Then x^(1/3) = 4 ("x raised to the power 1/3 is 4")
Let's elimiinate the fractional exponent on the left by cubing both sides of the equation:
{x^(1/3)}^3 = 4^3, or, after simplification,
x^1 = 64, or, in simplest form,
x = 64
Question c)
Notice that the base here is 1/100
and that the square root of 1 is 1 and that of 100 is 10.
Therefore, the given
{1/100} is equivalent to {1/10)^2
and so we have:
1 1
(------------)^(1/x) = ------- (we are to find x)
10^2 10
Note that 10 is the square root of 10^2, also the square root of 100.
So let's take the square root of 10^2. We get 10.
Therefore, try x = 2 and see whether the given equation is true:
1 1
{---------)^(1/2) = ------
100 10
The square root of 1 is just 1. The square root of 100 is 10.
Therefore the above equation becomes
1 1
----- = ----- and so x = 2 is correct.
10 10
Related Questions
if y= -8 when x= -2 whats x when y=32
Answers
Answer:
8
Step-by-step explanation:
Y) -8 x -4 = 32
X) -2 x -4 = 8
Answer:
X=8
hope this helps =3
sorry if im wrong
5/16=x/64 what is x.
Answers
Answer:
5/16=x/64
Step-by-step explanation:
the x is 1280 that is the answer
Answer:
20 even though its not an answer option?
Step-by-step explanation:
It should be since 16x4=64 5x4=20
Simplify and write the answer as product of powers of prime numbers:
Answers
Answer:
here man let me is 1 im sure the answer is =((1))
Step-by-step explanation:
6^(-3 * 10^(-10 * 27 * 25 / 5^(-8 * 3^(4 * 2^-3))))
Evaluate 7-2
A. -49
B. -1/49
C. -14
D. 1/49
Answers
Answer:
(D)
Have a great day!!!
The correct value of number 7⁻² is,
D. 1/49
We have to given that,
The number is,
⇒ 7⁻²
Now, We can simplify it as,
⇒ 7⁻²
It can be written as,
⇒ 1 / 7²
⇒ 1 / 7×7
⇒ 1/49
Therefore, The correct option is,
D. 1/49
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Given the following expression. 2 1/4 - (-3 2/5) A. Rewrite the expression using addition. B. Evaluate the expression.
Answers
Answer:
[tex]2\frac{1}{4} + 3 \frac{2}{5}[/tex]
Step-by-step explanation:
[tex]2\frac{1}{4} - (-3 \frac{2}{5}[/tex][tex])[/tex]
However, - × - equals +
[tex]2\frac{1}{4} + 3 \frac{2}{5}[/tex]
plz help me I need it
Answers
b = 92 degrees (choice B)
c = 92 degrees (choice D)
d = 92 degrees (choice F)
================================================
Explanation:
Angles a and b are supplementary because they form a straight angle when combined. The two angles add to 180
a+b = 180
88+b = 180 ... plug in a = 88
b = 180-88 ... subtract 88 from both sides
b = 92
------------
Angles b and c are congruent because they are alternate interior angles. Alternate interior angles are congruent when dealing with parallel lines.
Since the diagonal entrance ramps are parallel, this means the corresponding angles c and d are congruent.
Since b = 92, this means c = 92 and d = 92 also.
What is the slope of this line?
Give your answer as a fraction in simplest terms.
Answers
Answer:
1/4 is the answer for this because the slope is 1 and 4 so this means it is going up at a 1/4 slope.
Answer:
The slope = 1/4
A kindergarten teacher bought $21 worth of stickers and cardstock for his class. The stickers cost $1.50 a sheet and the cardstock cost $3.50 per pack. The equation 1.5s+3.5c=21 represents the relationship between sheets of stickers, s, packs of cardstocks, c, and the dollar amount a kindergarten teacher spent on these supplies.
1. Explain how we can tell that this graph represents the give equation.
2. What do the vertical and horizontal intercepts, (0,6) and (14,0), mean in this situation?
Answers
Answer:
Step-by-step explanation:
Teacher bought $21 worth of stickers and cardstock for his class.
Cost of stickers = $1.50 per sheet
Cost of 's' sheets = $1.5s
Cost of cardstock = $3.50 per pack
Cost of 'c' packs = $3.5c
Equation representing the relationship between sheet of stickers and packs of cardstocks will be,
1.5s + 3.5c = 21
3.5c = -1.5s + 21
1). [tex]c=-\frac{3}{7}x+6[/tex]
y-intercept of the line → (0, 6)
x-intercept of the line → (14, 0)
Therefore, equation of the line represents the line on the graph.
2). Vertical intercept (0, 6) represents that he can purchase maximum 6 packs of cardstock with $21.
Similarly, horizontal intercept (14, 0) represents that he can purchase maximum 14 sheets of stickers with $21.
A Pattern has 5 blue triangles to every 80
yellow triangles, what is the ratio of blue
triangles to all triangles?
Answers
Answer:
5:80, there are only 2 numbers
Step-by-step explanation:
The ratio of blue triangles to all triangles is 1 : 17.
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
Given that;
A Pattern has 5 blue triangles to every 80 yellow triangles.
Here, Number of blue triangles = 5
Number of all triangles = 5 + 80
= 85
Thus, The ratio of blue triangles to all triangles is,
⇒ Number of blue triangles : Number of all triangles
⇒ 5 : 85
⇒ 1 : 17
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x ² - 2x + 1 = 0 what is the value of x?
Answers
Answer:
x = 1
Step-by-step explanation:
x^2 - 2x + 1 = 0
Factor
(x - 1)^2 = 0
x - 1 = 0
Add one to both sides.
x = 1
Rearrange to make a the subject:
v=u+at
Answers
Answer:
a = [tex]\frac{v - u}{t}[/tex]
Step-by-step explanation:
v = u + at
u + at = v
at = v - u
a = [tex]\frac{v - u}{t}[/tex]
Expand: f(x) = x4 − x3 + x2 + x −
Answers
Answer:
7
7
21
30
Step-by-step explanation:
its right i got it on edge 2020
Answer:
keep it simple 7, 7, 21, 30
Step-by-step explanation:
3 points determine exactly one plane: true or false?
Answers
Answer:
True
Step-by-step explanation:
I looked it up
My brain feels very much fried can someone help me
Answers
Answer:
22.33
Step-by-step explanation:
Answer:
0.37703703703704
Step-by-step explanation:
I need some help with this equation.
Answers
Answer:
I think that the answer is C) or the last one
I think it's the second one
Negative three times a number increased by seven is less than -11.
Answers
Answer:
-3x+7<11
Step-by-step explanation:
I hope I helped you
Please solve this question.(Quadratic equation)
Answers
Answer: 28
Step-by-step explanation:
Let x represent the digit in the tens place and y represent the digit in the ones place. xy → 10x + y
The square of the sum of the digits is 100.
EQ1: (x + y)² = 100 → x + y = 10
2 is subtracted from 3 times the number is the digits reversed.
EQ2: 3(10x + y) - 2 = 10y + x → 30x + 3y - 2 = 10y + x → 29x - 7y = 2
Solve the system of equations using the Elimination method:
EQ1: x + y = 10 → 7(x + y = 10) → 7x + 7y = 70
EQ2: 29x - 7y = 2 → 1(29x - 7y = 2 → 29x - 7y = 2
36x = 72
÷36 ÷36
x = 2
Substitute x = 2 into either of the equations to solve for y.:
EQ1: x + y = 10
2 + y = 10
y = 8
The digit is: 28
Mrs. Chin paid a 20 percent tip on the bill for lunch.
Total
100%
20%
$2.75
Percents
20%
$2.75
20%
$2.75
20%
20%
$2.75
$2.75
If the tip amount was $2.75, what was the bill for lunch before the tip was added to it?
0 $5.50
$13.75
O $16.50
O $55.00
Answers
Answer:$13.75
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I just took the test
.The quantities xxx and yyy are proportional.
xxx yyy
444 101010
555 12.512.512, point, 5
101010 252525
Find the constant of proportionality (r)(r)left parenthesis, r, right parenthesis in the equation y=rxy=rxy, equals, r, x.
r =r=r, equals
Answers
Answer:
2.5
Step-by-step explanation
:khan academy
Answer:
rx is 2.5. as the cop (constant of proportionality)
Find the missing value so that the line passing through the points has the given slope
(10,y) and (3,4) m= -2/7
Answers
Answer:
y = 2Step-by-step explanation:
Using slope formula and solving for y
m = (y2 - y1)/(x2 - x1)
-2/7 = (4 - y)/(3 - 10)-2/7 = (4 - y)/-72 = 4 - yy = 4 - 2y = 2Answer:
y = 2
Step-by-step explanation:
Using slope formula and solving for y
m = (y2 - y1)/(x2 - x1)
-2/7 = (4 - y)/(3 - 10)
-2/7 = (4 - y)/-7
2 = 4 - y
y = 4 - 2
y = 2
a red candle is 8 inches tall and burns at a rate of 7/10 inches per house a blue candle is 6 inches tall and burns at the rate of 1/5 inches per hour after how many hours willl both candles be the same height? ~ASAP HELP PLS THIS IS DUE IN A FEW HOURS!!~
Answers
Answer:
it will take 6 hours, or at least im pretty sure it will
Step-by-step explanation:
Please help!!!
Write an equation to represent the total weight, p, of a full animal watering pail, if the pail weighs 12 pounds and the water weighs 8.3 pounds per gallon,g.
Answers
Answer:
12+8.3(g)=p
Step-by-step explanation:
#of gal of water x 8.3 per gal. number of gallons of water is not given so it is represented by g
+ weight of pail which is given, 12
= p , weight of full pail
Helps me solve this problem please 12 and 14
Answers
Answer:
12 is C and 14 is A
Step-by-step explanation:
Solve v +8 <3 or 8v <-40.
Answers
[tex]v + 8 < 3[/tex]
Subtract sides -8
[tex]v + 8 - 8 < 3 - 8[/tex]
[tex]v < - 5[/tex]
_________________________________
[tex]8v < - 40[/tex]
Divided sides by 8
[tex] \frac{8}{8}v < \frac{ - 40}{8} \\ [/tex]
[tex]v < - 5[/tex]
_________________________________
Done.... ♥️♥️♥️♥️♥️
The solution of the given inequality v +8 <3 or 8v <-40 is v < -5.
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.
Given the inequality,
v +8 < 3
Adding -8 on both sides
v + 8 - 8 < 3 - 8
v < -5
Or,
8v <-40
Divide 8 on both side
v < -5
Hence "The solution of the given inequality v +8 <3 or 8v <-40 is v < -5".
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w¹²/w¹⁸
helppp I don't know what to do
Answers
Mario walked 7422 steps one day then he walks 5570 stops the next day. which calculation can be used to find the total number of steps Mario walked two days
Answers
Answer:
A caucluation he can use is adding, just add 7422 and 5570 and you should get your answer.
Step-by-step explanation:
Mario walked total 12992 steps.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
Mario walked 7422 steps one day
and, he walks 5570 stops the next day.
So, the total number of steps
= 7422 + 5570
= 12992 steps
Hence, Mario walked total 12992 steps.
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Is this a function (3,1), (3,2), (4,5)?
Answers
Answer:
No
Step-by-step explanation:
If the x value does not repeat than it's a funtction so therefore so therefore it t's not a function cause the variable of repeats
1. Given x=5, plug x into y=10x-2.
a. 38
b. 12.
C. 13
d. 48
Answers
Answer:
D. 48
Step-by-step explanation:
y=10x-2 is our equation
If x is 5, then multiply 10 by 5. You get 50.
Subtract 2 from that. You get 48.
Answer:
D, 48
Step-by-step explanation:
Given x=5, plug x into y=10x-2
First you should plug the given x into the x in the equation. And put () around it.
y=10(5)-2
Now you multiply 10 by 5 and you get 50.
y=50-2
Now the last step is to subtract 2 from 50 which you will end up getting y=48. So the answer is y=48 which is letter D.
y=48
The graph shows the reciprocal parent function
Answers
The function has no intercepts.
Option C is the correct answer.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
The x-intercept is the point on the x-axis when y= 0.
The y-intercept is the point on the y-axis when x= 0.
We see that,
There is no point on the x-axis or y-axis that the graph is touching.
So,
We can say that,
There are no x-intercepts and y-intercepts.
Thus,
The function has no intercepts.
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suppose the total area is 132 square units, b=5, d=4, and the area I is a square. Find the missing lengths and areas.
Answers
Answer:
/////////
Step-by-step explanation:
