The following two polynomials are added: (5x 3 −3x 2 +7x)+(4x 3 + ? +7x)=9x 3 −2x 2 +14x
Find the value of the question mark.

Answers

Answer 1

Answer:

Step-by-step explanation:

-2x²- (-3x²) = x²

_______


Related Questions

Applying fertilizer increases yield by 3 bushels an acre for corn. If you have 2304 acres, how much will your yield increase?

Answers

Answer:

6912 bushels

Step-by-step explanation:

The increase is 3 bushels per acre.

For 2304 acres, the increase is

2304 acres * 3 bushels/acre = 6912 bushels

The sum of three consecutive integers is 189 . What are the​ integers?

Answers

Answer:

So x+(x+2)+(x+4)=189. so the three numbers are 61, 63, 65.

Please help with this question.

Answers

Answer:

A

Step-by-step explanation:

multiply 90 by 54

L times w

Answer:

A   4860 yd²

Step-by-step explanation:

area = length * width

area = 90 yards * 54 yards

area = 4860 yd²

Solve for x
PLS PLS PLS HELP!!

Answers

A. 12

You use the formula A2+B2=C2
6^2+10^2 = X^2
36+100=x^2
136=x^2
Square root both sides
X= 11.6 round up to 12

Answer:

Option C. 8

Step-by-step explanation:

It is a right triangle.

let

AC = 10

BC = 6

AB = x

Using Pythagoras theorem

[tex] {ab}^{2} + {bc}^{2} = {ac}^{2} \\ {x}^{2} + {6}^{2} = {10}^{2} \\ {x}^{2} = {10}^{2} - {6}^{2} \\ {x }^{2} = 100 - 36 \\ {x}^{2} = 64 \\ x = \sqrt{64} \\ x = 8[/tex]

Rewrite the function by completing the square.
f(x) = x² +6x+87

Answers

f(x) = ( x + 3 ) ^2 + 78 is your answer.

Answer:

( x + 3 ) ^2 + 78

Step-by-step explanation:

sorry no step by step explanation because i was in a rush bye have a good day :D

what must be added to 5x²-3x+8to give 7x²-3x+10​

Answers

Answer:

[tex]2x^{2} - 6x + 18[/tex]

Step-by-step explanation:

[tex]7x^{2} -3x+10[/tex] - [tex]5x^{2} -3x+8[/tex] = [tex]2x^{2} - 6x + 18[/tex]

What is the value of 3.45 + 2.6 + 32.007?​

Answers

38.057 is the total

Answer:

38.057

Step-by-step explanation:

Two angles are supplementary. One angle is 45 degrees and the other angle measures (4x-5)
degrees. What is the value of x?
A. 35
B. 130
C. 32.5
D. 12.5

Answers

Step-by-step explanation:

suheshuehusehus7gesguehusehush7eg7s

The density of a certain material is such that it weighs 2 grams per milliliter of
volume. Express this density in kilograms per pint. Round your answer to the nearest
hundredth.

Answers

Answer:   0.95  

hchfcfhcxfjxgdxgfjvgcfhchcjg

Answer:

1.00

Step-by-step explanation:

1.00

0.625 rounded to the nearest thousandth

Answers

Answer:

the answer is still 0.625

Step-by-step explanation:

the tenths digit is 6, the hundreds digit is 2 and the thousabds digit it 5. SInce it doesn't pass the thousands digit it's fine how it is.

The round off of 0.625 to the nearest thousandth results in 0.626.

To round 0.625 to the nearest thousandth, focus at the digit in the thousandth's place, which is the third decimal place.

In this case, the digit in the thousandth's place is 5.

Since 5 is exactly halfway between 0 and 10, we round up the previous digit, which is 2.

Therefore, rounding 0.625 to the nearest thousandth results in 0.626.

Learn more about Round off here:

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May i get some help please

Answers

Answer:

[tex]\huge\boxed{\sf 995.4 in.\²}[/tex]

Step-by-step explanation:

Area of the circle:

= πr²

Where r = 21 in.

= (3.14)(21)²

= (3.14)(441)

= 1385.4 in.²

Area of triangle:

= [tex]\sf \frac{1}{2} (Base)(Height)[/tex]

Where Base = 20 in. , Height = 39 in.

= [tex]\sf \frac{1}{2} (20)(39)[/tex]

= (10)(39)

= 390 in.²

Area of the shaded region:

= Area of the circle - Area of the triangle

= 1385.4 - 390

= 995.4 in.²

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807


If the bases of an isosceles trapezoid have lengths of 22 and 29, what is the
length of the median?
A. 25,5 units
B. 7 units
C. 51 units
D. 3,5 units
SUBMIT

Answers

Not 100% sure but I think it’s A
It’s A I’m pretty sure, 25.5 !

Solve for x, rounding to the nearest hundredth.
98: 10
588
HELP YA SISTER OUT PLS!!!!

Answers

Answer:

98:100

588:600

Step-by-step explanatin

PLEASE HELLPPPP!!!!!

Answers

Answer:

25

Step-by-step explanation:

if X = 4 then you would do

4(4) + 9

since 4 x 4 is 16

add that by 9

16 + 9 = 25

so the value of 4x + 9 = 25

Hope this helps

hi! please help i’ll give brainliest

Answers

Answer:

A, the keyword deciduous means wearing away and erosion means fading away. The two are common so therefore your answer is A.

Need help ASAP please

Answers

im thinking c, im sorry if wrong

Determine the intercepts of the line

Answers

Answer:

If we look at the graph, we can see that the x-intercept is located at (4, 0) and the y-intercept is located at (0, 2.5)

y -intercept of a graph is the point where the graph crosses the y -axis.

x -intercept of a graph is the point where the graph crosses the x -axis.

y -intercept ( 0 ; 2.5 )

x -intercept ( 3.5 ; 0 )

Alisa is choosing new tile for the floor in her dining room which is in the shape of a square with side lengths x feet. The tile costs ​$3.39 per square foot.
a. Write the function f for the cost of the flooring.
b. Determine the cost of the flooring if she decides on a dining room with side lengths of 11 ft.
c. Determine the cost of the flooring if she decides on a dining room with side lengths of 23 ft

Answers

Answer:

A F = 3.39 per sq ft. B 37.29 C 77.97

Th function is f(x) = 3.39x²

The cost of the flooring for a dining room is $410.19.

The cost of the flooring for a dining room is $6,072.31.

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,

Area of a square = side²

Square with side lengths = x feet.

The tile costs ​= $3.39 per square foot.

a.

The function f for the cost of the flooring.

f(x) = 3.39x²

b.

x =  11 feet

f(11) = 3.39 x 11²

f(11) = 3.39 x 121

f(11) = $410.19

c.

x = 23 feet

f(23) = 3.39 x 23²

f(23) = 3.39 x 529

f(23) = $6,072.31

Therefore,

f(x) = 3.39x²

The cost of the flooring for a dining room is $410.19.

The cost of the flooring for a dining room is $6,072.31.

Learn more about functions here:

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ou find a clue wrapped around a Toblerone bar. The base was an equilateral triangle with a side of 16 mm and the bar was 155 mm long. How many sq mm was the clue? (lateral surface area)

Answers

Answer:

54 cubic inches?

Step-by-step explanation:

The Surface area of bar is 7696 square mm.

What is Surface area?

The area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface. Square units are used to measure it as well.

We have,

The base was an equilateral triangle with a side of 16 mm and the bar was 155 mm long.

So, Surface area of Triangular Prism

= ( 16 + 16 + 16) 155 + 16  x 16

= 7440 + 256

= 7696 square mm

Learn more about Surface area here:

https://brainly.com/question/29298005

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PLEASE HELP!!

30 points
Write the equation of a line in slope intercept form passing through the points (-5.-11) and (-2, 1)

Answers

Answer:

y=4x+9

Step-by-step explanation:

Answer:

https://socratic.org/questions/how-do-you-write-the-equation-in-slope-intercept-form-passing-through-7-11-5-1#579410

Step-by-step explanation:

theres the link to the answer

Please help and add explanation

Answers

Answer:

y=-3x+10

Step-by-step explanation:

Since you know that the equation of the line is perpendicular to 1/3, you have to find the inverse of 1/3. You swap the denominator and numerator and make the number negative. In this case, it will be -3. Now that you know the slope is -3, you can use the equation y-y1=m(x-x1) where m is the slope. We know that the point (2,4) is in the graph so we can plug it into the equation. y-4=m(x-2). We know that the slope is -3 so we can plug it into the equation. y-4=-3(x-2). Simplify this to get y-4=-3x+6. Simplify this to get y=-3x+10. This means that the answer is y=-3x+10.

If this has helped you please mark as brainliest

A penguin walks 10 feet in 6 seconds. At this speed: 1.How far does the penguin walk in 45 seconds? 2.How long does it take the penguin to walk 45 feet? Explain or show your reasoning.

Answers

1-75 feet
2-28 seconds , hope this helps!!

EASY SYSTEM OF EQUATION

Answers

Answer:

3,7

Step-by-step explanation:

See steps below:)

The answer is (3,7).

Gerry plans to place a 29 foot ladder against the side of his house to clean his gutters. The bottom of the ladder will be 3 feet from the house. How far up the side of the house will the ladder reach (in ft)?

Answers

Answer:

8[tex]\sqrt{13}[/tex]

Step-by-step explanation:

Using the pythagorean theorem (Assuming the house's walls are perpindicular to the ground):

a^2+b^2=c^2

we can find that 3=a and 29=c

3^2+b^2=29^2

9+b^2=841

b^2=832

b=[tex]\sqrt{832}[/tex]

b=[tex]\sqrt{64*13}[/tex]

b=8[tex]\sqrt{13}[/tex]

That is the height that the ladder will reach

Plz help me I’m really confused!

Answers

1:

E F and J K

2:

Point A to point B

question 3 to 5 i dont know the answer to

Answer:

I believe this is what you need

Name a positive angle between 0 radians and 2π radians that is coterminal with an angle in standard position whose measure is −3π2 radians.

Answers

Answer:

The positive angle between [tex]0[/tex] and [tex]2\pi[/tex] radians that is coterminal with [tex]\theta = -\frac{3\pi}{2}\,rad[/tex] is [tex]\theta = \frac{\pi}{2}\,rad[/tex].

Step-by-step explanation:

GIven that the measure of the known angle is [tex]-\frac{3\pi}{2}[/tex] radians and that such angle belongs to a set of angles in terms of revolutions (with a period of [tex]2\pi[/tex]) done either clockwise or counterclockwise, we can represent the family of coterminal angles with the following expression:

[tex]\theta = -\frac{3\pi}{2}\pm (2\pi\cdot i)[/tex], for [tex]i \in \mathbb{N}_{O}[/tex] (1)

Where [tex]i[/tex] is the index of the coterminal angle.

According to the statement, we must name a positive angle between [tex]0[/tex] and [tex]2\pi[/tex] radians, which can be found by the sign [tex]+[/tex] and [tex]i = 1[/tex]. Hence, we find the required angle:

[tex]\theta = -\frac{3\pi}{2} + 2\pi[/tex]

[tex]\theta = \frac{\pi}{2}\,rad[/tex]

The positive angle between [tex]0[/tex] and [tex]2\pi[/tex] radians that is coterminal with [tex]\theta = -\frac{3\pi}{2}\,rad[/tex] is [tex]\theta = \frac{\pi}{2}\,rad[/tex].

A minor league baseball 112 games in a session. If the team won 16 more than 3 times as many games as they lost, how many wins and losses do they have

Answers

Answer:

Won = 88 gamesLost = 24 games

Step-by-step explanation:

The number of games for the session is 112 so all the wins and losses should add up to 112.

Assume that the number of times they lost is x. The number of times they won would then be: 16 + 3x

Total expression is therefore:

16 + 3x + x = 112

16 + 4x = 112

4x = 112 - 16

x = 96/4

x = 24

They lost 24 games. Number of games won is:

= 112 - 24

= 88 games

Chad owes his mother $150. He plans to pay back $15 per week. Write an algebraic expression to show how much Chad still owes his mother based on the number of weeks.

Answers

Answer:

Step-by-step explanation:

150 - 15w

where w is the number of weeks he payed his mother the $15

Consider the line segment YZ with endpoints Y(-3,-6) and Z(7,4). What is the y-coordinate of the midpoint of line segment YZ?

Answers

Given:

Consider the line segment YZ with endpoints Y(-3,-6) and Z(7,4).

To find:

The y-coordinate of the midpoint of line segment YZ.

Solution:

Midpoint formula:

[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]

The endpoints of the line segment YZ are Y(-3,-6) and Z(7,4). So, the midpoint of YZ is:

[tex]Midpoint=\left(\dfrac{-3+7}{2},\dfrac{-6+4}{2}\right)[/tex]

[tex]Midpoint=\left(\dfrac{4}{2},\dfrac{-2}{2}\right)[/tex]

[tex]Midpoint=\left(2,-1\right)[/tex]

Therefore, the y-coordinate of the midpoint of line segment YZ is -1.

*
Find the area of a triangle: Base of 8 cm Hight of 9 cm

Answers

Answer:

36 cm

Step-by-step explanation:

The formula to find the area of a triangle is A=1/2bh where b stands for base and h for height.

So, 8 times 9 equals 72, and 72 divided by 2 is 36.

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