8xy when x=7 & y=11
evaluate the expression for the given values of x and y.

Answer:

Step-by-step explanation:

(a +b)² = a² + b² + 2ab

a = 3a and b = 2.5b

2ab = 2*3a*2.5b = 15ab

15ab is the monomial that needs to be inserted

Answer:

3, 5, 8, 4, 5

Step-by-step explanation:

Answer:

282.74

Step-by-step explanation:

Answer:

\(\fbox{Surface area of cylinder = 282.6 sq. in.}\)

Step-by-step explanation:

Given:

Shape of object = cylinder

height of cylinder= 4 inches

radius of cylinder= 5 inches

To find:

surface area of cylinder = ?

Solution:

we know that,

\(surface \: area \: of \: cylinder =2\pi{rh} + 2\pi {r}^{2}\\Substituting \:the \:constant\: (π =3.14)\\and \:given\: data,\\2\pi{rh} + 2\pi {r}^{2} \: =\\ 2×3.14×5×4+2×3.14× {5}^{2} \\2\pi{rh} + 2\pi {r}^{2} = 125.6 + 157 \\ 2\pi{rh} + 2\pi {r}^{2} = 282.6\\ \fbox{Surface area of cylinder = 282.6 sq. in.}\)\)

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The factors of the given polynomials are found using factorization methods.

Consider the polynomials given.

x⁴ - 8x² + 16 = (x²)² - 8x² + 16

Using the factorization method,

                   = (x² - 4)(x² - 4)

                   = (x² - 2²)(x² - 2²)

                   = (x - 2)(x + 2)(x - 2)(x + 2) [By difference of squares formula]

The factor is x - 2.

x⁴ - 16 = (x²)² - 4²

          = (x²- 4)(x² + 4)

          = (x² - 2²)(x² + 4)

          = (x - 2)(x + 2)(x² + 4)

The factors are x - 2 and x² + 4.

x⁶ - 8 = (x²)³ - 2³

        = (x² - 2) (x⁴ + 2x² + 4)

        = (x² - 2) ((x²)² + 2x² + 4)

Factor is x² - 2.

x⁴ + 2x² - 8 = (x²)² + 2x² - 8

                  = (x² + 4) (x² - 2)

The factors are x² - 2 and x² + 4

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Answer:

D

Step-by-step explanation:

First find the slope.

\(Slope=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\dfrac{5-[-9]}{4-[-3]}=\dfrac{5+9}{4+3}\\\\\\=\dfrac{14}{7}=2\)

Point slope form:

y - y1 = m(x -x1)

y -[-9] = 2 (x - [-3])

y +9 = 2 (x + 3)

The diagram of water cycle is attached below.

The best describes the process occurring at U and X is Water changes from a liquid to a gas.

The process that occurs at the position of U and X is discussed when water transforms from a liquid to a gas. This is called Evaporation.

The following are the situations that should not be arisen at the location U and X:

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n = 3m + 7

n − 2m = 1

solve second equation for n

n - 2m = 1

n = 1 + 2m

now they are both equal to n, so

3m + 7 = 1 + 2m

solve for m

3m + 6 = 2m

6 = -1m

m = -6

plug in

n − 2(-6) = 1

n + 12 = 1

n = -11

check

-11 = 3(-6) + 7

-11 = -18 + 7

-11 = -11

m = -6

n = -11

D

The coordinates of the midpoint M of segment JK are (-0. 3). The distance between the endpoints of JK is sqrt(104) or approximately 10.198.

To find the coordinates of the midpoint M of segment JK, we can use the midpoint formula, which states that the x-coordinate of the midpoint is the average of the x-coordinates of the endpoints and the y-coordinate of the midpoint is the average of the y-coordinates of the endpoints. So, for segment JK with endpoints J(3, -6) and K(-3, 2), the x-coordinate of the midpoint is (-3+3)/2 = 0 and the y-coordinate of the midpoint is (-6+2)/2 = -2. Therefore, the coordinates of the midpoint M are (0, -2).

To find the distance between the endpoints of JK, we can use the distance formula, which states that the distance between two points with coordinates (x1, y1) and (x2, y2) is given by the square root of [(x2-x1)^2 + (y2-y1)^2]. So for segment JK with endpoints J(3, -6) and K(-3, 2), the distance is sqrt[(-3-3)^2 + (2-(-6))^2] = sqrt[36 + 64] = sqrt(100) = 10. Therefore, the distance between the endpoints of JK is approximately 10.198.

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Answer:

B

Step-by-step explanation:

Categorical data is also known as qualitative variable. It is a data that can take up one or a limited set of values. e.g race, sex,  occupation.

Answer:

False

True

missing info

missing info

Step-by-step explanation:

2.8mm = 28cm    False since 28 cm = 280 mm

1760 ml < 10 litres     True since 1760 ml = 1.76 l

18g > 0.17    missing units

1.68 = 168cm    missing units

The both triangles are not similar.

Similar triangles are triangles that have the same shape but may have different sizes. Two triangles are considered similar if their corresponding angles are equal, and their corresponding sides are in proportion or have the same ratio.

In other words, if two triangles have the same angles, then they are similar. The ratio of the lengths of the corresponding sides of similar triangles is the same, and this ratio is called the scale factor.

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Answer:

x=7/3 or x=2.33

Step-by-step explanation:

9x^2 - 52x + 33 = -10x - 16

Okay, lets Start by converting this into standard form, which is: ax^2 + bx + c = 0.

Add 10x+16 on both sides of the equation, and simplifying.

9x^2 - 52x + 33 + 10x + 16  = -10x - 16 + 10x + 16

9x^2 - 42x + 49 = 0

Guess What! This equation is a Perfect Square Trinomial.

For a Perfect Square Trinomial, you will be able to take the square root of the first  and third terms, and the coefficient of the second term will be twice the square root of the  third term. The “sign” of your second term in your answer will be the same as the linear term sign.

So this is (3x*3x) + (3x * -7 * 2) + (7 * 7) = 0

So, we can rewrite this as (3x - 7)^2=0

Now, To solve, We can set each factor equal to 0, and solve.

*Since we have a Perfect Square Trinomial, You will get one solution, or value, for x.*

Add 7 on both sides.

3x - 7 = 0

     +7  +7

----------------

3x=7

Divide by 3 on both sides.

3x/3 = 7/3

x=7/3

As a decimal: 2.33...

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Have a fantastic day!

             -Aadi x

No, Root 3x 5 is not a polynomial, because it does not meet the definition of a polynomial.

A polynomial is a mathematical expression consisting of variables and coefficients, which only uses the operations of addition, subtraction, multiplication, and non-negative integer exponents. In other words, it must be an expression that can be written in the form ax^n + bx^(n-1) + cx^(n-2) + dx^(n-3) + ... + z, where n is an integer, and a, b, c, d, ... and z are real numbers.

Root 3x 5 does not fit this definition, because it contains a square root (√) which is not one of the operations listed. Additionally, it does not fit the form of a polynomial, as it does not contain any coefficients or exponents. The formula for root 3x 5 is simply √3x 5, and the calculation is the square root of 3x 5, or √15, which is equal to 3.75.

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Answer: y^2 + 10x/2

Step-by-step explanation:

Combine multiplied terms into a single fraction

5x + 1/2 y^2

5x + 1y^2/2

Multiply by 1

5x + 1y^2/2

5x + y^2/2

Find common denominator

5x + y^2/2

2 • 5x/2 + y^2/2

Answer:

It's the third one, (0,-3.6)

Step-by-step explanation:

Answer is in a photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

cutt.us/tWGpn

Answer:

Step-by-step explanation:

company has earned = 1 POUND

spends on website = 0.45 POUND

ratio= 1-0.45÷ 0.45

   = 0.55/0.45

       =11/9

hope this help...!!!<3

Answer:

C is the answer if you count 8 down, if not. sorry

Answer:

c. -3, -4 if you go 8 numbers down from point P then that's what you should get.

Answer:

Skeleton hand holding a piece of candy maybe?

Or a jack-o-lantern but its a poison apple.

OR a drawing of a witch's face in the reflection of a cauldron.

Step-by-step explanation:

Spooky Graveyard: Draw a creepy graveyard scene with tombstones, skeletons, and ghosts.

Jack-O-Lanterns: Draw a bunch of different jack-o-lanterns with different expressions and designs.

Haunted House: Draw a haunted house with creaky doors, broken windows, and bats flying around.

Witch's Cauldron: Draw a witch's cauldron bubbling with potions and ingredients.

Trick or Treaters: Draw a group of trick or treaters dressed up in costumes going from house to house.

Scary Trees: Draw a spooky forest with twisted, gnarled trees that look like they could come to life at any moment.

Monster Mash: Draw a bunch of different classic Halloween monsters, like Frankenstein's monster, vampires, and werewolves.

Zombie Apocalypse: Draw a post-apocalyptic scene with zombies wandering around and survivors trying to stay alive.

Black Cats: Draw some cute or creepy black cats with glowing eyes.

Halloween Candy: Draw a big pile of Halloween candy with all your favorite treats.

A pumpkin: Draw a simple pumpkin shape and add eyes, nose, and mouth. You can also add a stem on top and some vines on the sides.

Ghosts: Draw some simple white shapes for ghosts and add eyes and a mouth. You can also draw a white sheet around the ghost to make it look more spooky.

Skeletons: Draw a basic skeleton shape and add some bones. You can also add some spooky decorations, like spider webs or bats.

Witch hats: Draw a simple witch hat shape and add some details, like a buckle or a spider. You can also add some stars or a crescent moon in the background.

Bats: Draw a bat shape and add some details, like wings and ears. You can also draw a moon or some stars in the background to make it look more Halloween-like.

An inequality for the graph above is y ≤ -3x + 6.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (-3 - 6)/(3 - 0)

Slope (m) = -9/3

Slope (m) = -3

At data point (0, 6) and a slope of -3, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 6 = -3(x - 0)  

y = -3x + 6

y ≤ -3x + 6 (since the solid line is shaded below).

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Answer:

42x-27

Step-by-step explanation:

Answer:

C.) (1/2, 4)

Step-by-step explanation:

The solution is where the two lines intersect

The lines intersect at x = .5 and y =4

Answer:

C.) (1/2, 4)

Step-by-step explanation:

The average memory access time (AMAT) for P1 is 6.31 ns and for P2 is 3.68 ns, and assuming a base CPI of 1.0 without any memory stalls, the total CPI for P1 is 1.3165 and for P2 is 1.074, indicating that P2 is faster.

To calculate the average memory access time (AMAT), we use the formula:

AMAT = L1 hit time + L1 miss rate x L2 hit time x L2 miss rate x main memory access time

For P1 with a 32 KiB L1 cache, 3 ns L1 hit time, 5% L1 miss rate, and 100 ns main memory access time, the AMAT is:

AMAT = 3 ns + 5% x 5.62 ns x 100% x 100 ns = 6.31 ns

For P2 with a 64 KiB L1 cache, 2.5 ns L1 hit time, 2% L1 miss rate, and 80 ns main memory access time, the AMAT is:

AMAT = 2.5 ns + 2% x 5.62 ns x 100% x 80 ns = 3.68 ns

Assuming a base CPI of 1.0 without any memory stalls, the total CPI for P1 and P2 can be calculated using the formula:

CPI = base CPI + memory stalls per instruction x average memory access time

For P1 with an L1 miss rate of 5%, the memory stalls per instruction is 0.05. Therefore, the total CPI for P1 is:

CPI_P1 = 1.0 + 0.05 x 6.31 = 1.3165

For P2 with an L1 miss rate of 2%, the memory stalls per instruction is 0.02. Therefore, the total CPI for P2 is:

CPI_P2 = 1.0 + 0.02 x 3.68 = 1.074

Based on the CPI calculations, P2 is faster than P1.

With the addition of an L2 cache to P1, we can recalculate the AMAT and CPI as follows:

AMAT_P1_new = 3 ns + 5% x 5.62 ns x 95% x (5.62 ns + 100 ns) = 9.96 ns

CPI_P1_new = 1.0 + 0.05 x 9.96 = 1.498

The AMAT has increased significantly due to the high L2 miss rate, and the CPI has also increased as a result. Therefore, it is unclear whether adding an L2 cache has improved the performance of P1 without additional information about the specific workload and performance metrics.

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When dilated by a scale factor of 3, the coordinates of point A(2,3) of triangle ABC become (6,9). The new triangle is similar to the original with all dimensions increased by a factor of 3.

Dilation is a geometric transformation that changes the size of a figure while preserving its shape. When a figure is dilated by a scale factor, all of its dimensions are multiplied by the scale factor.

In this problem, we are given the coordinates of the vertices of ΔABC, which are A(2,3), B(5,6), and C(4,1). To find the new coordinates of point A after dilation by a scale factor of 3, we can multiply the x-coordinate and y-coordinate of point A by 3. This gives us:

A' = (3 * 2, 3 * 3) = (6, 9)

Therefore, the coordinates of A' after dilation are (6, 9). We can similarly find the new coordinates of points B' and C' by multiplying their coordinates by 3:

B' = (3 * 5, 3 * 6) = (15, 18)

C' = (3 * 4, 3 * 1) = (12, 3)

The new triangle ΔA'B'C' is similar to the original triangle ΔABC, with all of its dimensions increased by a factor of 3. The ratio of the corresponding sides of the two triangles is 3:1, and the ratio of their corresponding angles is the same.

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Answer:

-6x-12

Step-by-step explanation:

\( - 6x - 12\)

hope this help

Answer:

Step-by-step explanation:

the answer is 24

Lindsay's z - score, given the mean score, the standard deviation, and her score, is 2. 35.

To calculate a z-score, you subtract the mean from the individual score and then divide by the standard deviation.

The formula is:

z = (x - μ) / σ

Where

x is the individual score

μ is the mean

σ is the standard deviation.

So, to find Lindsay's z-score:

z = (98 - 78.2) / 8.4

z = 19.8 / 8.4

z = 2.35

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Answer:

Step-by-step explanation:

△ RST ≅ △ TXY

We are given ΔRST and ΔTXY are congruent to each other.

If two triangles are congruent to each other then their corresponding parts are equal.

Please see the attachment of two triangles.

∠R is corresponding to ∠T

∵  ∠R=∠T By CPCT

∠XYT is corresponding to ∠STR

∵  ∠XYT=∠STR By CPCT

∠XTY is corresponding to ∠SRT.

∵  ∠XTY=∠SRT By CPCT

∠TXY is corresponding to ∠RST

∵  ∠TXY=∠RST By CPCT

CPCT: Congruent part of congruence triangle.

\((x+4)(x-1) = x^{2} -x+4x-4=x^{2} +3x-4\)

ok done. thank to me :>

The slope of the tangent line at the point (x,y) is -x/(2y). The ellipse's slope is not defined at the coordinates (4, 0), (-4, 0).

The rate of change of a curve at a certain position is represented by the slope of a tangent line to the curve at that location. In other words, it indicates whether the curve is steep or shallow at that particular location. Calculating the derivative of a function in calculus also requires estimating the slope of a tangent line, which is a crucial step. We may determine the slope of the tangent line and subsequently the derivative of the function at a location by determining the limit of the slope of a secant line as the two points on the line approach closer and closer together.

The equation of the ellipse is x²)/16 +y²/4=1.

We take the derivative of the equation with respect to xto find the slope:

x²/16 + y²/4 = 1

(x²/16)' + (y²/4)' = 1'

2x/16 + 2y/4 * dy/dx = 0

dy/dx = -x/(2y)

When the denominator of 2y equals 0, there are some locations where the slope is not specified. The ellipse's slope is not defined at the coordinates (4, 0), (-4, 0), and all locations on the x-axis between these two points when y = 0, which occurs.

Hence, the slope of the tangent line at the point (x,y) is -x/(2y). The ellipse's slope is not defined at the coordinates (4, 0), (-4, 0).

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Answer:

41.666 cm³ or 41.7 cm³  rounded to the nearest tenth.

Step-by-step explanation:

Volume of a square pyramid = base length² × height ÷ 3

25 × 5/3 = 41. 666

Have a great day:)

Answer:

41.7

Step-by-step explanation:

It says to ROUND which will get you 41.7