Show work and Factor 4x^2+xy-18y^2

Answer:

y≤0

Step-by-step explanation:

The range is the output values, or in this case the y values

Y is less than or equal to zero

y≤0

Answer:D

Step-by-step explanation:

Answer:

[tex]86.5[/tex]

Step-by-step explanation:

[tex]3^4+5.5[/tex]

[tex]81+5.5[/tex]

[tex]86.5[/tex]

Answer:

86.5

Step-by-step explanation:

3^4 + 5 . 5

Exponents first

3^4=81

81+5.5

86.5

Sorry for my first answer

Answer:

125 meters squared

Step-by-step explanation:

Surface area of initial pyramid:

Surface area of extended pyramid:

The difference is:

Answer:

First pyramid is = 400 meters squared

A= 10²+4*1/2*10*15= 400 m²

second pyramid = 675 meters squared

A= 10*15+2*1/2*15*15+2*1/2*10*15= 525 m²

Subtract the two =

525- 400= 125 m²

Answer:

C)38%

Step-by-step explanation:

Divide the # of latecomers who blame the security by the # of total latecomers.

Answer: 38 percent

Step-by-step explanation: did usa tset prep

Answer:

the third one

Step-by-step explanation:

use quadratic equation

Answer:  1 < x < 25

Step-by-step explanation:

The sum of two sides must be GREATER than the third side.

      a +  b > c              a + c > b              b + c > a

     12 + 13 > x             12 + x > 13            13 + x > 12

          25  > x                     x > 1                      x > -1

           x < 25                     1 < x

Length cannot be negative so disregard x > -1

We are left with   1 < x  and   x < 25  

                                 1 < x < 25

Answer:

B. Infinitely Many

Step-by-step explanation:

Step 1: Distribute

5x + 48 + 7x = 12x + 48

Step 2: Combine like terms

12x + 148 = 12x + 48

If the 2 lines are the same, which they are, they are the same lines. That means there are an infinite amount of solutions. If they had the same slope but different y-intercepts, there would be no solutions because the lines are parallel. Any other pair of equations would have 1 solution.

Answer:

B. Infinitely Many

Step-by-step explanation:

When you simplify the term on the left of the equation, it is exactly the same as the term on the right. Therefore, you can substitute virtually anything in for variable "x" and it would still be correct.

Answer:

x = 15

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ KLM is an external angle of the triangle, thus

∠ KLM = ∠ JKL + ∠ KJL , substitute values

5x - 7 = x + 20 + 2x + 3

5x - 7 = 3x + 23 ( subtract 3x from both sides )

2x - 7 = 23 ( add 7 to both sides )

2x = 30 ( divide both sides by 2 )

x = 15

Answer:

b

Step-by-step explanation:

Answer:

(4,-1)

Step-by-step explanation:

I took the quiz

Answer:

D) 45

Step-by-step explanation:

When a line bisects an angle, it cuts the angle into two equal halves. This means that ABD and DBC have the same angle measure, which is half of 90 degrees or 90/2=45. Hope this helps!

Answer:

y = -3x + 4

Step-by-step explanation:

So the -3 is the slope and the slope always has an x and the y intercept is b which is 4

Answer:

y = -3x + 4

Step-by-step explanation:

slope-intercept form: y = mx + b

Note that: m = slope

y- intercept = b

m = slope = -3

y-intercept = b = 4

Plug in the corresponding number to the corresponding variables:

y = mx + b

y = -3x + 4 is your answer.

~

Answer:

Middle. The conflict normally builds near the middle.

Step-by-step explanation:

Answer:

If two planes are parallel, a line in one plane is parallel to a line in the other plane. A line that intersects one of two parallel lines intersects the other also. Through a point not in a plane are an infinite number of lines parallel to the plane.

Step-by-step explanation:

i hoped this helped I found it on the web. couldnt really understand the question. too much planes

Answer:

i believe it is c

Step-by-step explanation:

Answer:

Step-by-step explanation:

x^4 – 16x^3 + 96x^2 – 256x + 256

terms with odd exponents are negative

x^4 has a coefficient of one, so the expression's GCF is 1

Thus, we need to factor out the expression as it is:

(x-4)*(x-4)*(x-4)*(x-4)

Lets multiply it out to check:

(x-4)*(x-4)*(x-4)*(x-4)=

(x^2-8x+16)*(x^2-8x+16)=

x^4−8x^3+16x^2−8x^3+64x^2−128x+16x^2−128x+256=

x^4 – 16x^3 + 96x^2 – 256x + 256

thus, the factored form is:

(x-4)*(x-4)*(x-4)*(x-4) or (x-4)^4

Answer:

73

Step-by-step explanation:

First, to get rid of the square root, square both sides of the equation to get:

y-9=64

Then, move 9 to the other side to get

y=73

Answer:

y = 73

Step-by-step explanation:

sqrt(y-9) = 8

Square each side

(sqrt(y-9))^2 = 8^2

y-9 = 64

Add 9 to each side

y-9+9 = 64+9

y = 73

Since we squared each side, we have to check and see if the solution is valid

sqrt(73-9) = 8

sqrt(64) = 8

8=8

it is a valid solution

Answer:

4 I think

Step-by-step explanation:

I divided 80 by 40

Answer:

-2/3

Step-by-step explanation:

We need a negative fraction

The numerator has to be smaller than the denominator to be between 0 and -1

Answer:3rd one

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let x be the random variable representing the amount of pollutants that are found in waterways near large cities. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = standard deviation

n = number of samples

From the information given,

µ = 9.1

σ = 1.5

n = 9

the probability that the average amount of pollutants is less than 9.6 ppm is expressed as

P(x < 9.6)

z = (9.6 - 9.1)/(1.5/√9) = 1

Looking at the normal distribution table, the probability corresponding to the z score is 0.84

Therefore,

P(x < 9.6) = 0.84

Answer:

≈ 8.6 cm

Step-by-step explanation:

tan= opposite leg/adjacent leg

tan 43°= 8/b

0.933= 8/b

b= 8/0.933

b= 8.57449≈ 8.6 cm

Answer:

[tex]x^{21/5}[/tex]

Step-by-step explanation:

Step 1: Convert [tex]\sqrt[5]{x^{7}}[/tex] into exponential form

[tex]((x^7)^{1/5})^{3}[/tex]

Step 2: Mulitply the 2 exponents together

[tex](x^{7/5})^{3}[/tex]

Step 3: Multiply the exponents again

[tex](x^{7/5})^{3}[/tex] = [tex]x^{21/5}[/tex]

Answer:

A = 50.3 cm²

Step-by-step explanation:

Area of a circle = [tex]\pi r^2[/tex]

Where r = 4 cm

A = π(4)²

A = 16(3.14)

A = 50.3 cm²

Answer:

BC ≈ 11.9 cm

Step-by-step explanation:

We use sin∅ (opposite over hypotenuse) to solve for our missing length:

sin58° = BC/14

14sin58° = BC

BC = 11.8727

Step-by-step explanation:

first find the side length by

considering a triangle under

the square

[tex]l \: = \sqrt{ {3}^{2} + {1}^{2} } = \sqrt{10} \: cm \\ area \: = \: \sqrt{10} \times \sqrt{10} = 10 \: {cm}^{2} \: \: \: \: ans[/tex]

Answer:

I would say AA

Step-by-step explanation:

try to separate the picture to see the bigger picture and you can do it.

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = [tex]\frac{1}{5}[/tex] x - 5 ← is in slope- intercept form

with slope m = [tex]\frac{1}{5}[/tex]

Parallel lines have equal slopes, thus parallel line has slope of [tex]\frac{1}{5}[/tex]

The line crosses the y- axis at (0, 6) ⇒ c = 6

y = [tex]\frac{1}{5}[/tex] x + 6 ← equation of parallel line → A

the equation of the line that passes through the point (0,6) and is parallel to the line with the equation y = 1/5X - 5 is y = 1/5x +6.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given A line passes through the point (0,6) and is parallel to the line with the equation y = 1/5X - 5

Since the two lines are parallel to each other

thus, their slope would be equal

Slope intercept form of the Second line:

y = 1/5x + c

Given that line passes through (0, 6)

From above equation

6 = 1/5* 0 +c

Hence, c = 6

therefore, the equation of the line y = 1/5x +6.

Learn more about Linear equation here:

https://brainly.com/question/11897796

#SPJ2

Here is the complete question.

During the second day of the school fair, Talia and Yoshi recorded 43 winners out of a total of 324 players. How does the actual number of winners compare to the expected number of winners?

Theoretical probability

P (red ) = 1/8 = 12.5%

Experimental probability

( ? )/324 = ( ? )%

This experimental probability is ( ? ) than the theoretical probability.

There were ( ? ) winners than expected.

Answer:

Experimental probability = 13.27%

The experimental probability is 0.77% more than the theoretical probability,

There were approximately 2.5 more winners than expected

Step-by-step explanation:

Given that;

The Theoretical probability = 1/8 = 12.5%

The total number of players = 324 players

From these two data set; it is possible to determine the numbers of the theoretical winners by basically multiplying the Theoretical probability  by the total number of players.

i.e 12.5% × 324 players

0.125 × 324 players = 40.5 players

However; we know that Talia and Yoshi recorded 43 winners out of a total of 324 players

So;

number of recorded winners = 43

the total players = 324

The Experimental Probability can be calculated by dividing the number of recorded winners with the total number of players and multiplying the fraction by 100.

i.e

Experimental Probability = ( Numbers of recorded winners/ Total Number of players ·) × 100

Experimental Probability = (  43/324 ) × 100

Experimental Probability = 0.1327 × 100

Experimental Probability = 13.27%

The difference in comparison between Experimental and Theoretical Probability is =  13.27%  - 12.5% = 0.77%

The actual number of winners compare to the expected number of winners is: number of recorded winners  - the numbers of the theoretical winners

= 43 - 40.5

= 2.5

Answer:

10

Step-by-step explanation:

Answer:

mp.3

Step-by-step explanation: