Complete question is;
Tiothy evaluated the expression using x = 3 and y = –4. The expression is (xy^(-2))/(3x²y^(−4))
1. (1/3)x^(−1)(y²) 2. ((1/3)^(3−1))(−4²) 3. (1/3)(1/3)(−4)² 4. (1/3)(1/3)(−16) 5. −16/9 Analyze Timothy's steps. Is he correct? If not, why not?
A) Yes, he is correct.
B) No, he needed to add the exponents when he simplified the powers of the same base.
C) No, he needed to multiply 3 and –1 instead of creating a positive exponent in a fraction.
D) No, his value of (negative 4) squared should be positive because an even exponent indicates a positive value.
Answer:
D) No, his value of (negative 4) squared should be positive because an even exponent indicates a positive value.
Step-by-step explanation:
The expression is;
(xy^(-2))/(3x²y^(−4))
Simplifying this using law of indices gives;
⅓(x^(1 - 2)) × (y^(-2 -(-4))
This gives;
= (⅓x^(-1)) × y²
= ⅓ × (1/x) × y²
We are told that x = 3 and y = –4, thus;
= ⅓ × ⅓ × (-4)²
Square of a negative number is positive, thus (-4)² = 16
Thus;
⅓ × ⅓ × (-4)² = 16/9
Looking at the answer Timothy got, it's clear he made a mistake of not getting a positive number when he squared -4.
Thus,option D is the correct answer.
Answer:
D
Step-by-step explanation:
i got it correct
9 and 11! Will mark brainliest if you get both right:) help needed ASAP
Answer:
C & B
Step-by-step explanation:
Answer:
D, and A
Step-by-step explanation:
D because a straight line can not have a slope.
A because a straight line without a slope is shown, and located at x=4
Question 1
Solve
z
+ 13 > 25
4
A
Z>-48
B
Z>-3
o
С
Z<-48
D
z<4
Please help
[tex] \frac{z}{ - 4} + 13 > 25 \\ \frac{z}{ - 4} + \frac{ - 52}{ - 4} > \frac{ - 100}{ - 4} [/tex]
[tex] \frac{ - 52 + z}{ - 4} > \frac{ - 100}{ - 4} [/tex]
[tex] - 52 + z > 100[/tex]
[tex]z > - 100 + 52[/tex]
[tex]z > - 48[/tex]
THE ANSWER IS C z > -48
16(x+3)=4(x+9)
solve for x
⭐ Respuesta :
Ecuación : 16 (x + 3) = 4 (x + 9)⭐ Resolvemos :
[tex]16(x+3)=4(x+9)\\16x+48=4x+36\\16x-4x=36-48\\12x=-12\\x=-12/12\\\\\boxed{x=-1}[/tex]
⭐ Explicación paso a paso :
16 (x + 3) = 4 (x + 9)
Multiplicamos los paréntesis "16(x+3)" y "4(x+9)"16x + 48 = 4x + 36
Términos semejantes ...16x - 4x = 36 - 48
Restamos respectivamente ...12x = -12
El número 12 multiplicando a "x" pasa a dividir...x = -12 ÷ 12
Dividimos y ya tenemos el resultado!! ^-^ x = -1❤ Ver mas ejemplos : brainly.lat/tarea/29507142 ❤
At Saturday night’s football game there were 18 less fans than half the fans at Friday night’s game. There were “x” fans at Friday’s game. Write an expression to represent the number of fans at Saturday’s game.
This can be expressed in this form:
1/2x - 18.
HELP ME OMG ILL GIVE YOU BRAINLIEST AND ILL FOLLOW YOU!!!!!!!
Explain in detail with at least two sentences how to represent the sum of z1 and z2 geometrically given that z1 = 8 – I and z2 = -9 + 2i. Then, give the sum 21 + Z2 in rectangular form.
Answer:
Given are two complex numbers as
When we add algebraically, we add the real parts and then add the imaginary parts separately
Hence
Geometrically we draw position vector of both the points. The sum would be resultant of these two vectors.
Step-by-step explanation:
The sum of the complex number in rectangular form is -1 +i
Sum of complex numberComplex numbers are written in the form x + iy
Given the complex numbers expressed as:
z1 = 8 - i
z2 = -9 + 2i
Take the sum
z1 + z2 = (8 - 9) + (-i+2i)
z1 +z2 = -1 + i
Hence the sum of the complex number in rectangular form is -1 +i
Learn more on complex number here: https://brainly.com/question/10662770
#SPJ2
please solve due soon
Answer:
5
Step-by-step explanation:
5+5(0)
When a baseball is hit by a batter the height of the ball age of T at time TT equals zero is determined by the equation age of T equals -16 T squared +64 2+ 4FT is in seconds for which interval of time is the height of the bar greater than or equal to 52 feet
Answer:
1 ≥ t ≤ 3
Step-by-step explanation:
Given
h(t) = -16t² + 64t + 4
Required
Determine the interval which the bar is at a height greater than or equal to 52ft
This implies that
h(t) ≥ 52
Substitute -16t² + 64t + 4 for h(t)
-16t² + 64t + 4 ≥ 52
Collect like terms
-16t² + 64t + 4 - 52 ≥ 0
-16t² + 64t - 48 ≥ 0
Divide through by 16
-t² + 4t - 3 ≥ 0
Multiply through by -1
t² - 4t + 3 ≤ 0
t² - 3t - t + 3 ≤ 0
t(t - 3) -1(t - 3) ≤ 0
(t - 1)(t - 3) ≤ 0
t - 1 ≤ 0 or t - 3 ≤ 0
t ≤ 1 or t ≤ 3
Rewrite as:
1 ≥ t or t ≤ 3
Combine inequality
1 ≥ t ≤ 3
8x27 using distributive property and mental math
Answer:
216
Step-by-step explanation:
8×20=160 and 8×7=56 160+56=216 idky u told me to do it in my head but i did so ya
Abby is painting two cubes for an art project.
Cube 1: side length = 3 feet
Cube 2: side length = 2 feet
The surface area of a cube is 6s², where s is the length of one side.
Find the total surface area that Abby will paint.
1. Find the surface area of cube 1. Show your work, and include units with your answer.
2. Find the surface area of cube 2. Show your work, and include units with your answer.
3. What is the total area Abby will paint?
Answer:1: 56. 3 squared is 9, times 6 is 56.2: 24. 2 squared is 4, times 6 is 24.3: 80. 56+24=80
Step-by-step explanation:
1. The surface area of cube 1 is 54 sq ft, the surface area of cube 2 is 24 sq ft, the total area Abby will paint is 78 sq ft
What is a cube?A cube is a three-dimensional representation of a square. it has 6 faces 2 on the bottom and top, 4 on the sides faces.
We are given that Abby is painting two cubes for an art project.
Cube 1: side length = 3 feet
Cube 2: side length = 2 feet
The surface area of a cube = 6s², where s is the length of one side.
1. Each side of cube 1 is
3 feet x 3 feet, = 9
so, each side has an area of 9 square feet.
Then Multiply by 6 sides and the area
6 x 9 = 54
that is 54 square feet.
2. Each side is 2 feet x 2 feet = 4
so, the area of one side is 4 square feet.
Then Multiply by 6 sides and the area
6 x 4 = 24
That is 24 square feet.
3. the total area = 54 + 24 = 78 square feet
Learn more about cubes;
brainly.com/question/15420947
#SPJ2
Please help brainliest to correct answer
Answer:
The stage manager can multiply 55% by the table and the stool to get the height on set.
Step-by-step explanation:
44/80 is 0.55 or 55%
28*0.55 is 15.4
So, the stage manager can multiply 55% by the table and the stool to get the height on set.
Hope this helps!
Merry Christmas!
Answer:
See below
Step-by-step explanation:
Proportional function formula:
y = kxPart AUse the first row to find the constant of proportionality:
44 = 80kk = 44/80 = 11/20Find the height of table:
11/20*28 = 15.4 inFind the height of stool:
11/20*18 = 9.9 inPart BTo find the dimensions of props it is needed to multiply the actual dimension by 11/2024 pencils costing a total of $3.00 how many cents per a pencil
Answer:
$0.125 , so 12.5 cents per pencil
Step-by-step explanation:
[tex]\frac{3.00}{24}[/tex]
You can double check this by doing [tex]0.125*24[/tex] , making sure it equals 3.
Answer:
The pencils cost about 13 cents a pencil.
Step-by-step explanation:
Divide 3 by 24 and you get 0.125 you can round to the nearest hundredth to get 13 cents. Also see if 12 cents is a answer if 13 cents is not available.
URGENT: WILL MARK BRANIEST, LOOK AT PIC!
Answer:
It gives u answer in picture
Step-by-step explanation:
Free points?
Please help am begging you
Answer:
Not giving you answers, but I'll try to help you find a slope
Step-by-step explanation:
So take the first question.
A slope equals rise/run. The first point is 2,1 and the second is 0,-3.
For rise, take the second numbers you see for each written point (so 1 and -3). Subtract them. For run, take the first 2 numbers (2 and 0)
1--3 is 4
2-0 is 2
So the slope is 4/2 (write it like you would a fraction, 4 over 2). If I messed up, sorry. I don't know much about this yet either.
The question is in the picture below....
Answer:
The measure of the indicated exterior angle is 110°
Step-by-step explanation:
Let us revise the rule of the exterior angle
In a triangle, the measure of an exterior angle at a vertex of the triangle equals the sum of the measures of the two opposite interior angles to this vertex.
We will use this rule to solve the question
∵ The ladder, the house, and the ground formed a right triangle
∵ The ladder's angle with the ground facing away from the house is
an exterior angle of the triangle
∵ The angles of measures 90° and 20° are its opposite interior angles
→ By using the rule above
∴ The measure of the exterior angle = 90° + 20°
∴ The measure of the exterior angle = 110°
∴ The measure of the ladder's angle with the ground facing away
from the house is 110°
∴ The measure of the indicated exterior angle is 110°
how can we use a number line to help calculate elapsed time
The graph shows a line and two similar triangles. On a coordinate plane, a line goes through (0, 3) and (6, 11). A small triangle has a rise of 4 and run of 3. What is the equation of the line? y = 3 x + 3 y = three-fourths x + 3 y = four-thirds x + 3 y = 4 x + 3
Answer:
i think that the answer is the first equation
Step-by-step explanation:
The equation of the line passing through the points (0, 3) and (6, 11) is:
y = (4/3)x + 3.
Option C is the correct answer.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
To find the equation of the line passing through the points (0, 3) and (6, 11).
We can use the slope-intercept form of a linear equation,
which is y = mx + b, where m is the slope of the line and b is the y-intercept.
First, we can find the slope of the line by using the formula:
[tex]m = (y_2 - y_1) / (x_2 - x_1)[/tex]
where
[tex](x_1, y_1) = (0, 3)\\(x_2, y_2) = (6, 11).[/tex]
So,
m = (11 - 3) / (6 - 0) = 8/6 = 4/3
The slope of the line is 4/3.
Next,
We can use the point-slope form of a linear equation to write the equation of the line in terms of one of the points and the slope:
[tex]y - y_1 = m(x - x_1)[/tex]
Choosing the point (0, 3), we get:
y - 3 = (4/3)(x - 0)
Simplifying and solving for y, we get:
y = (4/3)x + 3
Therefore,
The equation of the line passing through the points (0, 3) and (6, 11) is:
y = (4/3)x + 3.
Learn more about equation of a line here:
https://brainly.com/question/23087740
#SPJ3
Is (-1, -9) a solution to the equation y 9x?
Answer:
Yes if the equation is Y= 9X
Step-by-step explanation:
-9= 9×-1 ---} -9 = -9
What is the point-slope form of an equation passing through (0, -5) with a 5 points
slope of 2? *
Answer:
y=2x-5
Step-by-step explanation:
[tex]y-y_{1}=m(x-x_{1})[/tex]
[tex]x_{1}=0, y_{1}=-5\\[/tex], and m=2
[tex]y-(-5)=2(x-0)[/tex], -(-5)-Two negatives make it positive, and you distribute the 2
[tex]y+5=2x[/tex], you now subtract 5 to get y by itself to get your answer of
[tex]y=2x-5[/tex]
*NOTE* (0,-5) is the y-intercept, so you could have used the linear equation of y=mx+b, m=2, and b(y-intercept)=-5
giving you y=2x-5
Tommy multiplied 0.24 by 100 to change it to what type of number?
A) percent
B) decimal
C) fraction
D) benchmark percent
50 degrees
20 degrees
120 degrees
80 degrees
Answer:
50
Step-by-step explanation:
Answer:
∠ 2 = 50°
Step-by-step explanation:
5x + 55 and 2x + 100 are corresponding angles and are congruent, thus
5x + 55 = 2x + 100 ( subtract 2x from both sides )
3x + 55 = 100 ( subtract 55 from both sides )
3x = 45 ( divide both sides by 3 )
x = 15
Then
5x + 55 = 5(15) + 55 = 75 + 55 = 130°
5x + 55 and ∠ 2 are adjacent angles and are supplementary, thus
∠ 2 = 180° - 130° = 50°
If y is the cube root root of x, then x is? Given y = 3 Please explain so I understand, will give brainliest
Answer: x=27
Step-by-step explanation:
Just like square root but cube root is by 3 not 2. So to cube something is to times it by itself 3 times. 3x3x3=27
The difference between 2 miles and 3 kilometres is
how many metres?
Answer:
2 miles = 3218.6 com
3km = 3000m
ATQ, 2 miles - 3km =
3218.6m - 3000m =
218.6m
it is any equation in the form f of x = ax to the second power + bx + c where a b and c are real numbers and a not equal to zero . is t a linear equation, quadratic,rational
Answer:
The answer to this depends on the accuracy of the way this is transcribed. If the value on the left side of the equals sign is indeed x, then it would be a rational equation. If it is meant to be another scalar value though, then this would be a quadratic equation.
Step-by-step explanation:
This depends on the what is on the other side of the equals sign. If it is a scalar value, then you are guaranteed a proper quadratic equation. In the example given though:
[tex]x = ax^2 + bx + c[/tex]
This is not actually true. In this example, we can divide both sides by x, giving us a very different equation:
[tex]x = ax^2 + bx + c\\1 = ax + b + c/x\\ax + c/x = 1b[/tex]
and this equation actually a rational one.
. William fills 1/3 of a water bottle in 1/6 of a minute. How much time will it
take him to fill the bottle?
Answer:
It will take him
[tex] \frac{1}{2} [/tex]
of a minute to fill the bottle.
Step-by-step explanation:
I'm really not sure this is right but..
we can solve using proportions. Cross-multiply and divide.
[tex]\frac{ \frac{1}{3} of \: a \: water \: bottle}{\frac{1}{6} minute} \: = \frac{ \frac{3}{3} of \: a \: water \: bottle}{x} \\ \\ \frac{ \frac{1}{6} }{ \frac{1}{3} } = \frac{ \frac{1}{3} x}{ \frac{1}{3} } \\ \\ \frac{1}{2} = x[/tex]
The sword maker in the cove ordered a special tape to wrap the sword handles with. He knew each sword would need 48 inches of tape. If he ordered 100 feet of tape, will he have enough tape to wrap 28 swords? How much will he have left over or how much more will he need?
Answer:
a) If he ordered 100 feet of tape, will he have enough tape to wrap 28 swords?
No he would not
b) How much will he have left over or how much more will he need?
= He would have 144 inches left over.
Step-by-step explanation:
The sword maker in the cove ordered a special tape to wrap the sword handles with. He knew each sword would need 48 inches of tape. If he ordered 100 feet of tape, will he have enough tape to wrap 28 swords? How much will he have left over or how much more will he need?
From the above question, each sword would need 48 inches of tape
He would need to wrap 28 swords, hence:
1 swords = 48 inches
28 swords = x
x = 28 × 48 inches
= 1344 inches of tapes
Therefore to cover each sword he would need a total of 1344 inches of tape.
He ordered 100 feet of tape
We convert 100 feet to inches
1 foot = 12 inches
100 feet = x
x = 100 × 12 inches
x = 1200 inches
Hence, he ordered 1200 inches of tape.
a) If he ordered 100 feet of tape, will he have enough tape to wrap 28 swords?
100 feet = 1200 inches of tapes
To wrap 28 swords he would need 1344 inches of tape hence, he would not have enough tape to wrap 28 swords.
b) How much will he have left over or how much more will he need?
= 1344 inches - 1200 inches
= 144 inches
He would have 144 inches left over.
Add (6x2 – 3x) + (5x – 7).A.6x2 + 2x – 7B.6x2 + 8x – 7C.6x2 – 2x – 7D.3x2 – 2x
Answer:
A.) 6x2+2x−7
Step-by-step explanation:
Answer:
6x^2 + 2x - 7.
trust me i just did it
Step-by-step explanation:
what is the discount rate of $85.00 to $55.00
Answer:
The discount rate is 35.3%.
Step-by-step explanation:
Since the price difference is (85-55) = 30 dollars, we can find the discount rate by dividing 30 by the original price, 85 dollars, to get this percentage, 35.5%.
Hope this helped!
Answer:
The discount rate is 35.3%.
Step-by-step explanation:
Because the price difference is ( 85 - 55 ) = 30 dollars, we can find the discount rate by dividing 30 by the original price, 85 dollars, to get this discount, 35.5%.
Please help me out with these questions! Brainliest + 50 Points
Step-by-step explanation:
1) B
2) A
3) C
4) C
yeahhh that's about right
Answer:
1) B
2) B
3) C
4) D
5) A (I think )
Step-by-step explanation:
Which set of ordered pairs represents a function?
{(3,3), (-9,-1),(-4,3), (3,1)}
{(2,4), (2,9), (-2,-8), (7,5)}
{(6,4),(-3,-6),(-3,9), (-8, –7)}
{(5,9), (-6,1),(6,5),(-8,5)}
Submit Answer
Answer:
{(5,9), (-6,1),(6,5),(-8,5)}
Step-by-step explanation:
There is no repeating X factor
Y+4=2(x+3) In slope-intercept form
Also can I please have Brainliest?
Only if I'm correct of course.
Your welcome, Loves!