Step-by-step explanation:
Given expression is x⁴-kx²+4 =0
x−2 is a factor of the given expression.
So, x=2
Substitute in the equation, we get
2⁴-k(2)²+4
⇒16+4k+4=0
⇒4k=−20
⇒k=−5
Pens cost 43p and booklets cost £1.85 How much change will I get from £10 if I buy 3 pens and 4 booklets
Answer:
Step-by-step explanation:
lets see how much will cost 3 pens
3*.43=1.29
booklets
1.85*4=7.4
total
7.40+1.29=8.69
10-8.69=1.31
What is the Square root of 38 to the nearest hundredth? with long division solution
Answer:
6.164
Step-by-step explanation:
what is the distance between points C and D
C(2,1)
D(4,1)
Step-by-step explanation:
let c=x1, y1 and d=x2,y2
Then distance=√(4-2)²+(1-1)²
= √4+0
=2
ans is 2 units
Del contenido total de una lata de verduras de 220g,la masa drenada es de 110g. ¡Que fraccion representa la masa drenada del contenido total? ¿Que fraccion decimal corresponde a un 1/4? ¿Que tanto por ciento se representa con 1/4 o .25? ¿Que tanto por ciento del contenido total representa la masa drenada?
Explicación paso a paso:
Pregunta 1
El contenido total de verduras = 220 g
La masa drenada es de 110 g.
¿Qué fracción representa la masa drenada del contenido total?
= 110/220
= 22/11
La fracción es 11/22
Pregunta 2
¿Qué fracción decimal corresponde a 1/4?
la fracción decimal que corresponde a 1/4 es 0,25
Pregunta 3
¿Cuánto porcentaje está representado por 1/4 o 0,25?
= 0,25 * 100
= 25%
Pregunta 4
¿Cuánto porcentaje del contenido total representa la masa drenada?
= 110/220 * 100
= 11/22 * 100
= 0,5 * 100
= 50%
Which two charges have a sum of 0?
+6 charge and +6 charge
-6 charge and -6 charge
+6 charge and -6 charge
2. Where is the number 4 - 8 located on a horizontal number line?
4 units to the left of 4
4 units to the right of 4
8 units to the left of 4
3. Simplify 7 + (-3)
-10
-4
4
5 which fraction is equivalent to -1/6
6/-1
-6/1
1/-6
4. Simplify (4.5)(5)(-2)
45
4.5
-45
6. Which expression is equivalent to 2(m- 5) + 6
2m - 1
2m + 22
2m - 4
Question: +6 charge and -6 charge
Question 2: 8 units to the left of 4
(4 - 8 = -4 and 8 units left is -4)
Question 3: 4
(7 +(-3) is essentially 7-3 which equals 4 because negative takes over the positive)
Question 5: 1/-6
(it doesn't matter if the negative symbol is on top or bottom, numerator or denominator just the numbers have to stay in the same place)
Question 4: -45
(4.5 times 5 is 22.5, and 22.5 times -2 is -45, the negative takes over the positive)
Question 6: 2m-4
( 2(m-5) +6
distribute first
2 times m = 2m
2 times -5 = -10
so now you have 2m - 10 + 6
combine like terms to get 2m - 4
(-10 + 6 = -4)
Saima goes to her friend every 15 days and laiba goes to same friend every 18 days.After how many days saima and laiba will visit the friend together?
Answer:
33 days
Step-by-step explanation:
15 + 18 = 33
Plz help and I will give brainliest
Answer:
6 True False True False
7 41.979
Step-by-step explanation:
6. 24 and 18. 24 is 2*2*2*3 and 18 is 3*3*2
Common is 6.
so a is correct.
B is wrong because they have to be the same
C is correct.
D is wrong because 48 does not go into 18 easily.
12.329+10.45+19.2
41.979
Hope this helps :D
D is 13. What is the length of the line.
Answer:
D
Step-by-step explanation:
You have to use pythagorean theorem to solve this.
Answer:
D
Step-by-step explanation:
use pytherogream theory
sides, 5 and 12
pytherogream triple 5, 12, 13
How many real and imaginary roots are there?
Answer:
5
Step-by-step explanation:
The length of a side of a regular hexagon is 6.8 cm, correct to one decimal place. Find the smallest possible perimeter of the length
Answer: 40.8cm
Step-by-step explanation:
A hexagon is a polygon that is made up of 6 sides. The perimeter of a regular hexagon is calculated by multiplying the side given by 6
Since the length of a side of a regular hexagon is 6.8 cm, the perimeter will be:
= 6 × 6.8
= 40.8cm
factor 2x² + 9x + 4
blah blah blah random charactors
Answer:
revers card
Step-by-step explanation:
Answer:
( 2 x + 1 ) ( x + 4 )
Step-by-step explanation:
The candle burned at a rate of 0.75 inches per hour and its initial length was 9 inches. Write an equation for L, in terms of t,t, representing the length of the candle remaining in inches, t hours after the candle was lit.
some one please help me
Which of the tables represents a function?
Table A
Input Output
5 3
5 2
4 1
Table B
Input Output
1 2
3 2
5 3
Table C
Input Output
0 0
1 2
1 3
Table D
Input Output
4 2
4 3
4 4
(5 points)
Table A
Table B
Table C
Answer:
People keep saying A but its not bc i did the test so try B.
Step-by-step explanation:
Dont click A
Answer:
it's B
Step-by-step explanation:
Please help. This is volume
Answer:
3600 in
Step-by-step explanation:
12 * 15 = 180
180 * 20 = 3600
Then just add the right unit
3600 in
Compute the following: StartFraction 7 factorial Over 3 factorial EndFraction a. 1680 b. 840 c. 21 d. 4
Answer:
B. 840
Step-by-step explanation:
Answer:) B
Step-by-step explanation:
Tylond puts $5,000 into a savings account that earns 4% simple interest. How much interest does he earn after
3 years?
Answer:
5,6241
Step-by-step explanation:
I have no idea if this is correct but I hope it is. I hope this helps.
pls help meh ill give brainliest i gave it before so why not middle school math
Answer:
1800
Step-by-step explanation:
suppose the initial cost to be x
it was increased by 6.5%
so, since the price increased is 117
117=6.5% of x
117=(6.5/100) . x
117 . 100=6.5 x
x=11700/6.5
x=1800
The volume of a gas V held at a constant temperature in a closed container varies inversely with its pressure P. If the volume of a gas is 1350 cubic centimeters when the pressure is 250 millimeters of mercury (mm Hg), find the volume when the pressure is 450mm Hg.
If g (x ) = 3(4)x, what is the value of g (2)?
2. MULTIPLE CHOICE What is the y-intercept when 3x – 2y = -6 is graphed?
Answer:
D. 3
Step-by-step explanation:
Subtract 3x from both sides. Divide both sides by -2. Simplify. You get
y = 3/2x + 3
3 is the y-intercept.
~theLocoCoco
It took Sheldon 17 5/6 minutes to walk to Raj's house. The bus ride home took Sheldon 4 5/8 minutes. How many more minutes did it take Sheldon to walk than to take the bus?
Answer:
it will take her [tex]13\frac{5}{24}[/tex] minutes more to walk down to Raj's House
Step-by-step explanation:
It took Sheldon [tex]17 \frac{5}{6}[/tex] minutes to walk to Raj's house
It also took Sheldon [tex]4\frac{5}{8}[/tex] minutes to use the bus.
To get the time difference between the two transport mechanisms, we subtract their different time durations.
This will be
[tex]17\frac{5}{6} - 4\frac{5}{8}=317/24[/tex]
We can convert this to Mixed fractions as shown [tex]13\frac{5}{24}[/tex] minutes.
Therefore, it will take her [tex]13\frac{5}{24}[/tex] minutes more to walk down to Raj's House
Tickets to the zoo cost $12 for adults and $8 for children. The school has a budget of $240 for the field trip. An equation representing the budget for the trip is: `240\ =\ 12x+8y`
Select all the true
If no adult chaperones were needed, 30 students could go to the zoo.
If ten students go to the zoo, then 15 adults can go.
If four more adults go to the zoo, that means there will be room for six fewer students.
If two more students go to the zoo, that means there will be room for three fewer adults.
If 16 adults go to the zoo, then 6 students can go.
Answer:
2 answers are true
Step-by-step explanation:
If no adult chaperones were needed, 30 students could go to the zoo. Is true
If 16 adults go to the zoo, then 6 students can go. Is also true
please help me on this.
Answer:
niether are a function
i need help real quick
Answer:
sorrie
Step-by-step explanation:
nothing here ;)
Answer:
with what I'm here to awnser
There are 430 people in a wave pool. Write an inequality that represents how many more people p can enter the pool.
2. The equation of the line graphed below could be which of the following?
(1) y=-2x+7
(2) y = 4x+3
(3) y=1/2x-6
(4) y=3/2x-1
What is the value of
-8(17-12)
————
-2(8-(-2)
-4
-2
2
4
Answer:
C. 2
Step-by-step explanation:
(-8(17-12)/(-2(8-(-2) = 2
vector u = <2,5> . Describe how you would use a graphical method to add vector u to vector v (shown in the graph). Then, write the resultant vector in the component form.
Answer:
Step-by-step explanation:
Draw vector u in standard position. To add u to v, shift u three units to the right and one unit up so its initial point coincides with the terminal point of v. Use a dotted line to depict the shifted vector u. Finally, draw the resulting vector with its initial point at the origin and endpoint at v + u. The component form of this resulting vector is <5, -4>.
A store paid $80 for shoes, and ends up selling them for $64. What is the
percent change? *
Answer:
-20%
Step-by-step explanation:
percentage change is calculated by
(new price - old price) / old price
(64 - 80) / 80
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SOMEONE PLEASE HELP ME I WILL GIVE BRAINLY
Answer:
C
Explanation:
A function always goes along the x-axis and never repeats
A, B and D repeat on the x-axis so C is your answer
