Which expressions are polynomials?

Select all that apply.

3x+9y
x2+x−4
27x2y−3
1/x+4

Answers

Answer 1

Answer:

i think a, b, and c not the last one

Step-by-step explanation:

i looked up the definition of a polynomial haha

hope this is right and helps <3


Related Questions

Y = -(X +5) + X +4 if X = -4. Y = ?

Answers

Answer:

y=-1

Step-by-step explanation:

PLEASEE HELPP!! WILL MARK BRAINLIST!! What is the geometric mean of 2 and 50?

Answers

2 and 50. X=10
_______
X=V (2) (50)
_____
-> x = V 100
X= 10

how do you estimate​

Answers

Answer:

The general rule for estimating is to look at the digit to the right of the digit you want to estimate. Estimating or rounding to the nearest whole number means looking at the digit to the right of the decimal. If you see a digit greater than 5, round up, and if it's less than 5, round down.

Step-by-step explanation:

two years ago randi earned $18,400. last year she earned $19,700. suppose she earns $21,600 this year. how much would randi have to earn next year so that her four year average is $21,000

Answers

$24,300


18,400+19700+21600=59700
(59700+ x)/4 =21000
Multiply both sides by 4
59700+x=84000
Subtract 59700 both sides
X=24300

Randi earn $24,300 next year.

Here,

Given that;

Two years ago Randi earned $18,400. last year she earned $19,700.

And, she earns $21,600 this year.

The average of four year is $21,000

We have to find, the amount she earn in next year.

What is Average?

A number that is calculated by adding quantities together and dividing the total by the number of quantities.

Now,

Let she earn $ x in next year.

The average of four year is $21,000.

Hence, Average of money for four year is;

[tex]\frac{18,400+19,700+21,600+x}{4} = 21,000[/tex]

[tex]59,700 + x = 84,000[/tex]

[tex]x = 24,300[/tex]

So, She earn $24,300 in next year.

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There are twice as many flute players as there are trumpet players in the band. if there are n flute players, write an algebraic expression to find out how many trumpet players there are

Answers

Answer:

n/2 = # of trumpet players

Step-by-step explanation:

The pizza shop is running a special: 2 medium pizzas
for $6.99 each. How much would it cost to by 12
pizzas?​

Answers

Answer:

41.94

Step-by-step explanation:

12 divided by 2 is 6 and six times 6.99 gets you your answer of 41.94

Answer:

$72.00

Step-by-step explanation:

Lets round $6.99 to $7.00. Now we have an easier number to work with.

To find the total price of 12 , we need to multiply $7.00 by 12.

⇒ $7.00 x 12 = $84.00

Since we added 1 cent to $6.99 and multiplied by 12, we need to sutract 1 times 12.

1 x 12 = 12

$84 - $12 = $72.00

Elijah needed to dig a row along a fence that was 5 feet long. He was able to dig all but 42 inches of the row before dark.

How many inches was he able to dig before dark?

Answers

Answer:

18 inches

Step-by-step explanation:

5x12=60

60-42=18

18 inches is the correct answer

what is the slope of (2, 3) and (4,6)

Answers

Answer:

Slope equals 1 1/2

Answer:

3/2 i think

Step-by-step explanation:

Jack swam 8 taps. He swam 6 fewer laps than Lea.
How many laps did Lea swim?
pls quick

Answers

Answer:

Lea swam 14 laps.

Step-by-step explanation:

8+6=14

please help me with this question!! thank you if you do:))

Answers

Answer:

C

Step-by-step explanation:

A bookstore packs 6 books in a box. The total weight of the books 14 1/4 pounds. If each book has the same weight, what is the weight of one book?

Answers

Answer:

2.375 or 2 3/8

Step-by-step explanation:

You want to do total weight over total number of items.

14 1/4 / 6 books = 2.375

Answer:

14.25 / 6 = 2.375 or 2 3/8

what is 5x+19-2(x-7)=5 (2x+5)+22

Answers

3x+33=10x+47 -> -14=7x so x=-2

Lamar used a coordinate plane to show where his posters are displayed on his bedroom wall. Three posters are located at Q(4, 2), R(–3, 2), and S(–3, 5). Use the absolute value of the coordinates to find the distances between points Q and R, and between points R and S.

Answers

Answer:

Distance between the points Q and R is 1 unit while the distance between the points R and S is 3 units

Step-by-step explanation:

Here, we want to use the absolute value of the coordinates to find the distances.

Since we are using absolute values, the negative points becomes positive;

Thus;

Q = (4,2)

R = (3,2)

S = (3,5)

Mathematically, the distance between two points in the Cartesian plane can be calculated using the formula;

D = √(x2-x1)^2 + (y2-y1)^2

The distance QR is thus;

D = √(3-4)^2 + (2-2)^2

D = √(-1)^2 + 0

D = √1 = 1 unit

The distance RS is thus;

D = √(3-3)^2 + (5-2)^2

D = √(0) + (9)

D = √9 = 3 units

Find the 11th term of the geometric sequence 6, -18, 54
AYUDEN CHUCHA

Answers

Step-by-step explanation:

T1=a

T2=ar

r=T2÷T1

r=--18÷6

r=-3

T11=ar^10

T11=6×-3^10

T11=-354294

Answer:

354294

Step-by-step explanation:

a11=6*(-3)10=354294

The table represents a proportional relationship.

x y
11 2
22 4
33 6

The graph represents another proportional relationship.

(Picture)

Which equation represents the lower unit rate of these two relationships?

A. y=2/9x

B. y=1/4x

C. y=1/5x

D. y=2/11

Answers

Answer:

the answer is d y=2

_ x

11

Step-by-step explanation:

I got it right on the test

2/11 is lower than 2/9, therefore the equation that will represent a lower unit rate (k) of both relationships given is: D. y=2/11

A proportional relationship between variable y and x can be expressed as:

y = kx

Where,

k is the unit rate/constant of proportionality.

Therefore,

k = y/x

Thus, find the equation for the table and the graph respectively in order to determine which equation represents the lower unit rate.

Equation for the table using a pair of coordinates, say (11, 2):

Find, unit rate (k) by substituting x = 11, and y = 2 into k = y/x

Thus:

k = 2/11

Plug in the value of k = 2/11 into y = kx

The equation for the table is:

y = 2/11x

Equation for the graph using a point on the line, say (9, 2):

Find, unit rate (k) by substituting x = 9, and y = 2 into k = y/x

Thus:

k = 2/9

Plug in the value of k = 2/9 into y = kx

The equation for the table is:

y = 2/9x

In conclusion, 2/11 is lower than 2/9, therefore the equation that will represent a lower unit rate (k) of both relationships given is: D. y=2/11

Learn more here:

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Help pleaseeee!!!?thanks

Answers

Answer:it’s c

Step-by-step explanation:

Because it’s 146%

Christa has a rectangular rug in her living room that is 6 feet wide and 8 feet long. She decides that the rug is too small for the room, so she orders a new one that covers twice as much area. If the new rug is 1.5 times as wide as the original rug, how long, in feet, is the new rug?

Answers

Given:

A rectangular rug in her living room that is 6 feet wide and 8 feet long.

She orders a new one that covers twice as much area.

New rug is 1.5 times as wide as the original rug.

To find:

The length of new rug.

Solution:

We have,

Length of rug = 8 feet

Width of rug = 6 feet

Area of rug is

[tex]Area=length \times width[/tex]

[tex]A_1=8 \times 6[/tex]

[tex]A_1=48\text{ sq. feet}[/tex]

Area of new rug is twice of area of original rug.

[tex]A_2=2\times A_1[/tex]

[tex]A_2=2\times 48[/tex]

[tex]A_2=96\text{ sq. feet}[/tex]

New rug is 1.5 times as wide as the original rug.

Width of new rug = 1.5 × 6 = 9 feet

Let the length of new rug be x feets. So, area of new rug is

[tex]A_2=x\times 9[/tex]

[tex]96=x\times 9[/tex]

Divide both sides by 9.

[tex]\dfrac{96}{9}=x[/tex]

[tex]\dfrac{32}{3}=x[/tex]

[tex]x=\approx 10.67\text{ feet}[/tex]

Therefore, the length of new rug is about 10.67 feet.

Jon mixes 1/2 cup of milk and 1 cup of flour to make pancake batter .he uses 1/6 of the batter to make each pancake .how many pancakes can he make

Answers

Answer:

Jon can make 9 pancakes.

Step-by-step explanation:

first add the milk and flour volumes and gives you 1 1/2. After that divide that by 1/6 which gives you 9 so Jon can make 9 pancakes.

A dairy calf raiser orders 25 bags of calf milk replacer for $1,050. How much did each bag cost?

Answers

Answer:

$1,054

Step-by-step explanation:

i dont have explination pls dont remind me

(x²+14+49)m²=
what is the answer?​

Answers

The answer for the equation

Interpret the meaning of y-intercept in this context​

Answers

Answer:

Its 8

Step-by-step explanation:

This is the highest peak

Expand and simplify: 2(x-4^2)+7

Answers

Answer:
2x-25

Explanation:
2(x-4^2)+7
1) Find the exponent
=2(x-16)+7
2) Use the distributive property on the parentheses
=2x-32+7
3) Subtract 32 and 7
=2x-(32-7)
=2x-25

I hope this helps! Please comment if you have any questions.

4 ( 11 + 7 ) = ? + 28

Answers

Let the missing number be x .

Then :-

[tex]4(11 + 7) = x + 28[/tex]

[tex]4 \times 18 = x + 28[/tex]

[tex]72 = x + 28[/tex]

[tex]x + 28 = 72[/tex]

[tex]x = 72 - 28[/tex]

[tex]x = 44[/tex]

Therefore , 4 ( 11 + 7 ) = 44 + 28 .


The following angle measures could form a triangle
(a)
90° , 37°, 53°
A True
B False


(b)
Explain why the angle measures form a triangle or do not form a triangle.

Answers

A) True

B) adding the angles makes 180°, which is the correct number for a triangle

Hey several brings five breadsticks to the table to people they share them equally how many do they get

Answers

Huh dude what huh are u kidding
If your gonn ask questions like that please don’t come one this app, there’s other students that need this app for their work :)

(4k – 2) (k + 4)
O 44² + 14k - 8
O 4K² - 8
O 5k + 2
0 42² + 16k - 8

Answers

Answer:

4k^2 + 14k - 8

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)

What is cos(3π)?
1
0
-1
-2

Answers

Answer:

cos(3π) is 0.986 which rounds to 1

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

edge 2020

No 2 please.Quick. HELP ASAP

Answers

Part A

We have 20 cards, 4 of which are kings (one of each suit). The probability of getting a king on the first draw is 4/20 = 1/5.

Answer: 1/5

===========================================================

Part B

We have 20-4 = 16 cards that aren't a king out of 20 total.

The probability of getting a non-king card is 16/20 = 4/5

After selecting the first card and not putting it back, we have 20-1 = 19 cards left. Four of which are a king, so 4/19 represents the probability of getting a king on this draw.

So (4/5)*(4/19) = 16/95 is the probability of getting a king on the second draw where the first draw is not a king.

Answer: 16/95

===========================================================

Part C

16/20 is the probability of getting no kings on the first draw

15/19 is the probability of getting no kings on the second draw (notice I stepped the values down by 1)

14/18 is the probability of getting no kings on the third draw

Multiplying out the fractions gives

(16/20)*(15/19)*(14/18) = 28/57

I skipped a few steps when multiplying the fractions but you get the idea.

The probability of drawing 3 cards, none of which are a king, is 28/57

Subtract this from 1 to get the complementary probability

1-(28/57) = 57/57 - 28/57 = (57-28)/57 = 29/57

This works because we have two choices: either we get no kings, or we get at least one king. So that's why the two events are complementary and their probabilities add to 1.

Answer: 29/57

A student pushes a the same cart with the same 50N of Force over the same distance of 10m, but on this occasion was timed in 5s by their parents who were in a hurry to get home. What was their power? *

Answers

Answer:

100W

Step-by-step explanation:

Power = Work done / time

Work done = force × distance

given,

force = 50Ndistance = 10mtime = 5s

Work = 50 × 10

Work = 500J

Power = 500 / 5

Power = 100W

PLEASE HELP MEH! I NEED HELP ASAP

Answers

Answer:

Planet D

Step-by-step explanation:

1.5*10^9 = 1,500,000,000

1.07*10^8 = 107,000,000

5.7*10^7 = 57,000,000

2.29*10^6 = 2,290,000

It has the least amount.

Answer:

Planet C

Step-by-step explanation:

1.5 x 10e9 = 1.5 billion

1.07 x 10e8 = 107 million

5.7 x 10e7 = 57 million

2.29 x 10e8 = 229 million

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