19,212 x 10*2 =
92.3
1932
Help please
Please make sure your question is formatted correctly and ill answer it for you.
Hi. Please i need help with these . No jokes .
Question b : Find ;
the values of
1.alpha³+beta³ and 1/(alpha³) +1/(beta³)
2. the the equation whose roots are alpha³ and beta ³
9514 1404 393
Answer:
(a) 2, 6
(b) 155/8, -155, 8x² -155x -1 = 0
Step-by-step explanation:
(a) The equation in standard form is ...
x^2 -(4+k)x +4k +1 = 0
Then the discriminant is ...
(4+k)^2 -4(1)(4k+1) = 4^2 +8k +k^2 -16k -4 = k^2 -8k +12 = (k -2)(k -6)
The roots are equal when the discriminant is zero. The values of k that make the discriminant be zero are k=2 and k=6.
__
(b) a^3 + b^3 = (a +b)(a^2 -ab +b^2) = (a+b)((a+b)^2 -3ab)
= (5/2)((5/2)^2 -3(-1/2)) = (5/2)(25/4 +3/2) = 155/8 = α³ +β³
1/a^3 +1/b^3 = (a^3 +b^3)/(ab)^3 = (155/8)/(-1/2)^3 = -155 = 1/α³ +1/β³
The desired equation can be written from ...
(x -a^3)(x -b^3) = 0
x^2 -(a^3 +b^3)x +(ab)^3 = 0
x^2 -155/8x -1/8 = 0 . . . . .substituting known values
8x^2 -155x -1 = 0
On a coordinate plane, a graph of a floor function has horizontal segments that are each 1 unit long. The left end of each segment is a closed circle. The right end of each segment is an open circle. The left-most segment goes from (negative 5, negative 5) to (negative 4, negative 5). Each segment is 1 unit higher and 1 unit farther to the right than the previous segment. The right-most segment goes from (5, 5) to (6, 5).
Use the graph of the floor function to complete the statements.
Over the interval
, y = 2.
For an input value of –1.5, the corresponding output value is
Answer: Over the interval x = 2≤ x <3, y = 2.
For an input value of –1.5, the corresponding output value is -2
Step-by-step explanation: Easier to find the information of you make a sketch of the graph described. (Good description!)
To find the value, look at the graphed segments that correspond to the given values.
X represents input values, Y represents output values.
Answer:
Over the interval
✔ [2, 3)
, y = 2.
For an input value of –1.5, the corresponding output value is
✔ –2
.
Step-by-step explanation:
edge2020
What is the domain of f(x)=
10x1-(4)
?
Answer:
Domain:(−∞,∞),{x|x∈R}
Step-by-step explanation:
Find(x^3+8x^2-25x-193) divide (x-5) by using synthetic division.
Answer:
x^2+13x+40 remainder 7. (or 7/(1-5))
Step-by-step explanation:
Answer:
x² + 13x + 40 + [tex]\frac{7}{x-5}[/tex]
Step-by-step explanation:
Using Synthetic division
dividing by ( x - 5) , thus use h = 5
5 | 1 8 - 25 - 193
↓ 5 65 200
+ + +
---------------------------------
1 13 40 7 ← remainder
quotient = x² + 13x + 40
Thus
[tex]\frac{x^3+8x^2-25x-193}{x-5}[/tex] = x² + 13x + 40 + [tex]\frac{7}{x-5}[/tex]
A man drove his car a distance of 260 miles in 4 hours. If continuing at this rate is possible, he will travel ____ miles in 8 hours. Someone pls help im sooo behind in maths and im really confused
Answer:
...520 miles
Step-by-step explanation:
if he keeps the same pace then you can just put two and two together 260 + 260 = 520 (seems too easy so sorry if im wrong)
A baker is putting cupcakes on trays to cool. She put 2 cupcakes on the first tray, 4 cupcakes on the second tray, 8 cupcakes on the third tray, 16 cupcakes on the fourth tray, and 32 cupcakes on the fifth tray. If this pattern continues, how many cupcakes will the baker put on the sixth tray?
Answer:
64 cupcakes
Step-by-step explanation:
Tray 1 = 2 cupcakes
Tray 2 = 4 cupcakes
Tray 3 = 8 cupcakes
Tray 4 = 16 cupcakes
Tray 5 = 32 cupcakes
Tray 6 = ?
This is a geometric progression
First term, a = 2
Common ratio, r = 4/2
= 2
6th term = ar^n-1
= 2 × 2^6-1
= 2 × 2^5
= 2 × 32
= 64
The 6th tray will have 64 cupcakes
Evaluate: 4
4.[22 -(1 +0.5)
Answer:
82
Step-by-step explanation:
Answer:
20.5
Step-by-step explanation:
glad i could help!
Today only, a suit is being sold at a 15% discount. The sale price is $391.
What was the price yesterday?
Answer:
460
Step-by-step explanation:
56 gallons to 77 gallons
Answer: it would be +21 gallons
Step-by-step explanation:you have to add 21 gallons to get 77 gallons
A woman is 5ft tall and her shadow is 4ft king. A nearby tree has a shadow of 30 ft long. How tall is the tree
Answer:
37 feet and 5 inches
Step-by-step explanation:
Answer: 40 ft tall
Step-by-step explanation:
you would mutiply it
What is the solution to the equation 4x + 8= -2 - 2 + 5x
Have?
Two
One
None
Invinitely many
Answer:
one solution
Step-by-step explanation:
4x + 8 = -2 -2 + 5x
4x + 8 = -4 + 5x
4x - 4x + 8 = -4 + 5x - 4x
8 = -4 + 5x - 4x
8 = -4 + x
8 + 4 = -4 + 4 + x
12 = x
veronica has 5 more than double the number of stuffed animals than her friend mariposa. together they have 32 stuffed animals
Answer:
Subtract 32 - 5 that would give you your answer
Step-by-step explanation:
A detergent company is trying to find a new stain remover ingredient to put in its detergent. Company managers know that baking soda or bleach will be used. The also know that water temperature, cold and warm, affects the stain removal process. An experiment will compare all combinations of these choices. Four types of stains on the same fabric will be subjected to each treatment and scored for stain removal quality. What is the experimental unit?
A: the fabric
B: the baking soda and bleach
C: the temperature of the water
D: the detergent
E: The Stains
Answer:
C.
Step-by-step explanation:
because they can pick bleach or bakeing soda the stans are going to come off either way but either\or hot and cold water affects it so they have to find out which of the water affects it not which of the prodocts does
Hi! whats 6666666 × 727272772
Answer: 4.8484847e+15
Step-by-step explanation:
Answer:
6666666 × 727272772 = 4,848,484,661,818,152
What is the answer for (2b + 8)5 ?
Answer:
Expanded, the answer would be 10b + 40
Step-by-step explanation:
Just multiply 8 to 2b and 8
solve What is 13.789 rounded to the nearest tenth?
Answer:
13.8
Step-by-step explanation:
8 is greater than 4 so you round up and get 13.8
^^^ this too please
Callum and Isobel have a total of 240 stamps.
The ratio of the number of Callum’s stamps to the number of Isabel’s stamps is 3:8.
Callum buys some stamps from Isabel.
The ratio of the number of Caullum’s stamps to the number of Isabel’s stamps is now 3:2
How many stamps does Callum buy from Isabel?
You must show all your working.
Answer:
callum bought 78.6 stamps
Which expression is equivalent to 4(7c+3)+5?
11c+7+5
28c+7+5
28c+12+5
28c+12+20
Answer:
28c+12+5
Step-by-step explanation:
taking 4 common in 28c-12 then,
28c+12+5=4(7c+3)+5
Answer:
28c+12+5
Step-by-step explanation:
4(7c+3)+5
i) distribute 4 into the parentheses
(4×7c)+(4×3)+5
= 28c+12+5
-2=3+v
Help please ty very much
Answer:
v = -5
Step-by-step explanation:
to get v by itself, you must subtract 3 from both sides, not only to cancel out the positive 3 but to keep both sides equal. this leads to -5 = v so that's your answer.
Answer:
Your answer is: [tex]V= -5[/tex]
Solve for v by simplifying both sides of the equation, then isolating the variable.
Step-by-step explanation:
Hope this helped : )
1/3x + 2y =4 x + y =-3
Answer:
x = -9/23 or y = -33/23 = -1 10/23
Step-by-step explanation:
Please mark brainliest.
Answer:
x= -9/23
y= -3/33
Step-by-step explanation:
1. A city planner is mapping out some new features for a triangular park. She sketches the park on grid paper. The coordinates of the vertices of the park are:
(3, -2), (3, 4), and (−3, 4).
The city planner wants to put a tree at the orthocenter of the park. What are the coordinates of the tree?
2. The city planner wants to put a flower bed at the centroid of the park. What are the coordinates of the tree?
3. picture below
Answer:
Download Socratic it has all the information you need
In 1933, Wiley Post flew around the world in 7 days, 18 hours. Wiley's trip would best
be described as flying around the of the earth.
a. perimeter
c. volume
d. diameter
b. area
Answer: perimeter
Step-by-step explanation:
Which mixture would taste different? Mixture 1: 1 cup water, 1.5 teaspoons drink mix Mixture 2: 2 cups water, 1/2 teaspoon drink mix Mixture 3: 1 cups water, 1/4 teaspoon drink mix Mixture 1 Mixture 2 Mixture 3
Answer:
Drink 1 will taste different.
Step-by-step explanation:
Given the mixtures:
Mixture 1: 1 cup water and 1.5 teaspoons drink mix
Mixture 2: 2 cups water and [tex]\frac{1}{2}[/tex] teaspoons drink mix
Mixture 3: 1 cup water and [tex]\frac{1}{4}[/tex] teaspoons drink mix
To find:
Which of the mixtures will taste different?
Solution:
To answer this, we need to find the ratio of all the mixtures.
First of all, Let us make ratio of water as 1 quantity.
Ratio of 1st mixture = 1 : [tex]\frac{3}{2}[/tex]
Ratio of Mixture 2 contains 2 cups of water.
Let us divide the ratio of mixture 2 with 2, we get:
[tex]\frac{2}{2}:\dfrac{\frac{1}{2}}{2}\\\Rightarrow 1:\dfrac{1}{4}[/tex]
Ratio of 3rd mixture = [tex]1:\frac{1}{4}[/tex]
Ratio of drink mix of 1st mixture with 1 cup water is different.
So, drink 1 will taste different.
Sunny's Surf Shop sold 160 surfboards this week, which was 320 percent of the number of surfboards sold last week. How many surfboards did Sunny's Surf Shop sell last week? O 16 O 50 O 160 512
Let, the number of Surfboards sold last week = x
Then, x * 320% = 160
x * 3.20 = 160
x = 160/3.20
x = 50
In short, Your Answer would be Option B
Hope this helps!
(no need to give brainliest) :)
Answer:
The answer would be B, 50.
math!
POINTS
TODAY
POINTS
THIS WEEK
Hwk #28: DistRateTime
GAME
CREDITS
V. Whitehea
$
$
$
First try was incorrect
Rosa travels 20 miles per hour. How long does it take her to travel 2
miles? Your answer should be in hours, rounded to the nearest tenth.
label required
Х
x² f(x) qx x
✓
(x) x < > TI"
Answer:
it takes her 1/10 of an hour
Step-by-step explanation:
math
(567)3-a=(678)
What does a equal
Answer:
[tex]a=1023[/tex]
Step-by-step explanation:
[tex]We\ are\ given:\\(567)3-a=678\\Hence,\\1701-a=678\\1701-678=a\\1023=a\\a=1023[/tex]
PLEASE HELP AND SHOW WORK IF YOU CAN
Answer:
c) XY > RS
= true
Step-by-step explanation:
Firstly know the meaning of each sign given
> means is greater than
= means is equal to
a)XZ > ST
XZ = 8
ST = 11 - greater
= false
b) XY = RS
Due to the angles presented, we conclude that the greater the angle, the longer the unmeasured line.
XY is longer than RS
= false
c) XY > RS
= true
d) RS > XY
RS is shorter than XY hence not greater.
= false
Write a word description of the set.
{−6, −5, −4, −3, −2, −1}