Which of the following could be the graph of this equation?

The expression -4x^2(3x - 7) simplifies to -12x^3 + 28x^2 after distributing -4x^2 across the parentheses and performing the necessary multiplications.

The expression to be simplified is -4x^2(3x - 7).

To simplify the expression, you need to distribute the term -4x^2 across the parentheses. This involves two multiplication steps:

Multiply -4x^2 by -7 to get +28x^2.

After performing these multiplications, the expression simplifies to -12x^3 + 28x^2.

Answer:

On the left is a 30 60 90 triangle so the height = 10 / 2 = 5 feet

Area of triangle = (5 * 8.7) / 2 = 21.75 sq feet

Area of Rectangle = 12 * 5 = 60 sq feet

TOTAL Area = 21.75 + 60 = 81.75 square feet

Step-by-step explanation:

Hello There!

The correct answer would be "B" this is because we are taking 6 and multiply it by our x column which is the "in" column and adding 1 to what we get.

Answer:

The Correct answer is (B) or option 2.

12w-27=-34+14w

Add 34 to each side:

12w + 7 = 14w

Subtract 12w from each side:

7 = 2w

Divide both sides by 2:

w = 7/2 ( depending on how you need to write the answer it could also be written as 3 1/2 or 3.5)

Answer:

w=7/2

Step-by-step explanation:

12w-27=-34+14w

12w-27+27=-34+14w+27

12w=14w-7

12w-14w=14w-7-14w

-2w=-7

w=7/2

If you need a decimal divide 7 by 2

hope this helps mark me brainliest

Answer:

The answer is C.

Step-by-step explanation:

The integer form is 60 as the answer

Answer:

x = 14

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value of sin45°

sin45° = [tex]\frac{\sqrt{2} }{2}[/tex]

Hence

sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{7\sqrt{2} }{x}[/tex]

Multiply both sides by x

x × sin45° = 7[tex]\sqrt{2}[/tex] ( divide both sides by sin45° )

x = [tex]\frac{7\sqrt{2} }{sin45}[/tex]

  = [tex]\frac{7\sqrt{2} }{\frac{\sqrt{2} }{2} }[/tex]

  = 7[tex]\sqrt{2}[/tex] × [tex]\frac{2}{\sqrt{2} }[/tex] = 7 × 2 = 14

Answer:

The equation would be:

(X+1)^2 + (y-1)^2 = 9

This is the equation of the circle in general form.  

[tex]\[ x^2 + y^2 + 2x - 2y - 7 = 0 \][/tex]

or

[tex]\[ (x + 1)^2 + (y - 1)^2 = 9 \][/tex]

To write the equation of a circle in general form, you start with the standard form of the circle's equation, which is:

[tex]\[ (x - h)^2 + (y - k)^2 = r^2 \][/tex]

where \( (h, k) \) is the center of the circle and \( r \) is the radius.

From the information provided:

- The center of the circle is \( (-1, 1) \)

- The radius of the circle is \( 3 \) units

Let's substitute these values into the standard form:

[tex]\[ (x - (-1))^2 + (y - 1)^2 = 3^2 \][/tex]

[tex]\[ (x + 1)^2 + (y - 1)^2 = 9 \][/tex]

Now, to write it in general form, you'll expand the equation and combine like terms:

Step 1: Expand the squares

[tex]\[ (x + 1)^2 = x^2 + 2x(1) + 1^2 \][/tex]

[tex]\[ (y - 1)^2 = y^2 - 2y(1) + 1^2 \][/tex]

Step 2: Write the expanded form

[tex]\[ x^2 + 2x + 1 + y^2 - 2y + 1 = 9 \][/tex]

Step 3: Combine like terms

[tex]\[ x^2 + y^2 + 2x - 2y + 1 + 1 = 9 \][/tex]

Step 4: Move the constant to the right side

[tex]\[ x^2 + y^2 + 2x - 2y = 9 - 2 \][/tex]

Step 5: Final general form

[tex]\[ x^2 + y^2 + 2x - 2y - 7 = 0 \][/tex]

This is the equation of the circle in general form.

Answer:

A rigid transformation includes only rotation and translation.

Answer:

Step-by-step explanation:

Answer is: 213, 278 , 108, 213, 157

213 is repeated 2 times; more than any other number.

A number that appears most often is the mode.

Answer:

213, 278, 108, 213, 157

Step-by-step explanation:

The mode is the number with the highest frequency in a given list of data. Simply, it is the number with most occurrence.

Now, let us chart the frequency of each numbers in the list provided:

1........ 111, 108, 213, 198, 205

Arrange in ascending order

108, 111, 198, 205 and 213

Numbers Frequency

108 1

111 1

198 1

205 1

213 1

No modal value

2..... 212, 215, 213, 211, 220

Arranging in ascending order:

211, 212, 213, 215 and 220

Numbers Frequency

211 1

212 1

213 1

215 1

220 1

No modal value

3......213, 278, 108, 213, 157

Arranging in ascending order:

108, 157, 213 and 278

Numbers Frequency

108 1

157 1

213 2

278 1

The mode here is 213. It has a frequency of 2 compared to other numbers whose mode is 1

4........ 210, 200, 213, 221, 221

Arranging in ascending order:

200, 210, 213, 221

Numbers Frequency

200 1

210 1

213 1

221 2

The mode here is 221

Answer:

Third Option

[tex]f(x) = 4x,\ g(x)=\frac{1}{4}x[/tex]

Step-by-step explanation:

For a function f(x) it is satisfied that the range of f(x) is equal to the domain of its inverse function. In the same way the domain of f(x) is equal to the range of its inverse.

Therefore, to verify which pair of functions are inverse to each other, perform the composition of both functions and you must obtain

[tex]f(g(x)) = x[/tex]  and   [tex]g(f(x)) = x[/tex]

For the first option we have:

[tex]f(x) = x,\ g(x)=-x[/tex]

Then

[tex]f(g(x)) = (-x) = -x[/tex]  They are not inverse functions

For the second option we have:

[tex]f(x) = 2x,\ g(x)=-\frac{1}{2}x[/tex]

Then

[tex]f(g(x)) = 2(-\frac{1}{2}x) = -x[/tex]  They are not inverse functions

For the third option we have:

[tex]f(x) = 4x,\ g(x)=\frac{1}{4}x[/tex]

Then

[tex]f(g(x)) = 4(\frac{1}{4}x) = x[/tex]

[tex]g(f(x)) = \frac{1}{4}(4x) = x[/tex] They are inverse functions

For the fourth option we have:

[tex]f(x) = -8x,\ g(x)=8x[/tex]

Then

[tex]f(g(x)) = -8(8x) = -64x[/tex]  They are not inverse functions

[tex]\bf x^2=0.0025\qquad \textit{let's convert the decimal to a fraction} \\\\[-0.35em] ~\dotfill\\\\ 0.\underline{0025}\implies \cfrac{00025}{1\underline{0000}}\implies \cfrac{25}{10000} \\\\[-0.35em] ~\dotfill\\\\ x^2=0.0025\implies x^2=\cfrac{25}{10000}\implies x=\sqrt{\cfrac{25}{10000}}\implies x=\cfrac{\sqrt{25}}{\sqrt{10000}} \\\\\\ x=\cfrac{5}{100}\implies x=\cfrac{1}{20}[/tex]

Answer:

[tex]\large\boxed{-8x^2-(8x-6x^2-8x)-[7-(-8x-7)]=-2x^2-8x-14}[/tex]

Step-by-step explanation:

[tex]-8x^2-(8x-6x^2-8x)-[7-(-8x-7)]\\\\=-8x^2-8x-(-6x^2)-(-8x)-[7-(-8x)-(-7)]\\\\=-8x^2-8x+6x^2+8x-(7+8x+7)\\\\=-8x^2-8x+6x^2+8x-7-8x-7\qquad\text{combine like terms}\\\\=(-8x^2+6x^2)+(-8x+8x-8x)+(-7-7)\\\\=-2x^2-8x-14[/tex]

Answer:

y = 23

Step-by-step explanation:

The diagonals of a rhombus are perpendicular bisectors of each other, thus

∠1 = 90° and ∠1 = 4y - 2, so equating gives

4y - 2 = 90 ( add 2 to both sides )

4y = 92 ( divide both sides by 4 )

y = 23

In the given geometric series, the common ratio is 5. The value of n, which indicates the term number, is found to be 4 by setting up and solving an equation based on the general formula for the nth term in a geometric series.

The series presented is a geometric series. In a geometric series, each term is multiplied by a common ratio to get the next term. In this case, the common ratio is 5 because each term is obtained by multiplying the previous term by 5.

In a geometric series, the general formula for the nth term is a * r^(n-1), where a is the first term and r is the common ratio. Hence, let's set up the nth term equation and solve for n.

500 = 4 * 5^(n-1)

When we solve the equation, we find that the value of n is 4.

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Answer:

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Step-by-step explanation:

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Linear relationship always produces a straight line and are without exponential.

Lets check all the given options:

1. the total area, in square meters, y, of a square garden if the side length is x meters.

The area of a square is [tex](side)^{2}[/tex]

Here, side is 'x' and area 'y' will be [tex]x^{2}[/tex].

This is not linear.

2. the height, y, of a 6-foot tree that grows 0.2 feet per month for x months

The equation forms:

[tex]y=6+0.2x[/tex]

When x = 1

[tex]y=6.2[/tex]

When x = 2

[tex]y=6+0.2(2)[/tex]

=> [tex]y=6.4[/tex]

When x = 3

[tex]y=6+0.2(3)[/tex]

=> [tex]y=6.6[/tex]

This is a linear relation.

3. the total cost, y, of a ski rental from a company that charges $15 plus an additional $8 per day rented for x days

The equation forms:

[tex]y=15+8x[/tex]

When x = 1

[tex]y=15+8=23[/tex]

When x = 2

[tex]y=15+8(2)[/tex]

=> [tex]y=31[/tex]

When x = 3

[tex]y=15+8(3)[/tex]

=> [tex]y=39[/tex]

This is also linear.

4. the total miles, y, traveled by a car going 62 miles per hour in x hours

The equation forms:

[tex]y=62x[/tex]

When x = 1

[tex]y=62[/tex]

When x = 2

[tex]y=62(2)[/tex]

=> [tex]y=124[/tex]

When y = 3

[tex]y=62(3)[/tex]

=> [tex]y=186[/tex]

This is also linear in nature.

Answer:

110

Step-by-step explanation:

2=80 and 3=30

2+3=ac=110

Answer:

Option B. 110°

Step-by-step explanation:

In the given circle m ∠1 = 100°

m BC = 30°

Then we have to find the measure of m AC

Since ∠1 = 100°

and ∠1 + ∠2 = 180° [supplementary angles]

100 + ∠2 = 180°

∠2 = 180° - 100°

∠2 = 80°

Now we know ∠3 = 15°

and m AC = ∠2 + ∠3

m AC = 80 + 30 = 110°

Therefore, Option B. 110° will be he answer.

Answer:

d.

Step-by-step explanation

it is a random variable but is continuos as it doesn't change.

Answer:

Height of 10 years olds

Step-by-step explanation:

A p e x

Answer:

5

Step-by-step explanation:

40/(32/4)

40/8

5

Answer:

[tex]{\huge \boxed{5}}[/tex]

Step-by-step explanation:

Parenthesis

Exponent

Multiply

Divide

Add

Subtract

Do divide from left to right, to find the answer.

[tex]40\div32\div4[/tex]

[tex]32\div4=8[/tex]

[tex]40\div8=5[/tex]

5 is the correct answer.

Answer: the first answer

| 2 1/5 - 4.35 |

Step-by-step explanation:

this is the integer of the answer. not a negative of it.

Answer:

13.2 ft.

Step-by-step explanation:

In the given ΔABC

tanA = [tex]\frac{Height}{Base}[/tex] = [tex]\frac{BC}{AB}[/tex]

tan 31° =[tex]\frac{x}{22}[/tex]

x = 22 tan 31°

  = 22 × (0.6009)

  = 13.22 ≈ 13.2 ft.

Both triangles have 2 side lengths labeled and a common angle ( shown by the curved lines).

You could use the SAS Similarity theorem.

Answer:

Step-by-step explanation:

This was the answer that was right for me, I just did this question :) Hope this helps!

B) dilation

this transformation changes the shape's size (making it smaller/larger) whilst the others keep the shape congruent (same shape, same size)

When two shapes are similar but not congruent, it means the transformations performed on the shapes is non-rigid. The transformation that Michael can use to obtain a non-congruent triangle for is (b) dilation.

A non-rigid transformation is such that changes the side lengths of a shape. An example is dilation.

Because the resulting triangle [tex]\triangle A'B'C'[/tex] must not be congruent, then, Michael can dilate the original [tex]\triangle ABC[/tex] to give the new triangle [tex]\triangle A'B'C'[/tex]

See attachment for an illustration of dilation

Hence, (b) is correct

Read more about transformations at:

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ANSWER

D.

[tex]x = \frac{ - ( - 9 )\pm \sqrt{ {( - 9)}^{2} - 4(2)(4)} }{2(2)} [/tex]

EXPLANATION

The given equation is

[tex]2 {x}^{2} - 9x + 4 = 0[/tex]

When we compare this to:

[tex]a{x}^{2} + bx + c = 0[/tex]

we have a=2, b=-9, and c=4.

The quadratic formula is given by,

[tex]x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} [/tex]

We substitute the values into the formula to get,

[tex]x = \frac{ - ( - 9 )\pm \sqrt{ {( - 9)}^{2} - 4(2)(4)} }{2(2)} [/tex]

The correct choice is D

Answer:

17.6 ounces per 500 g

Step-by-step explanation:

Knowing one ounce equals 28.34 g, all we have to do is divide half a kilo (500 g) by the equivalent of an ounce to get the number of ounces in a kg.  So,

O = 500 g / 28.34g/ounce = 17.64 ounces

We round that to the nearest tenth... to get 17.6 ounces per 500 g

Converting between metric and imperial/US system is always complicated.

Answer:

0.5 kilograms (kg) is equal to 17.6 ounces

Step-by-step explanation:

We have

                    1 kg = 35.274 ounces

                   0.5 kg = 0.5 x 35.274 = 17.637 ounces

Rounding to nearest tenth

              0.5 kg = 17.637 ounces   = 17.64 ounces = 17.6 ounces

So we have 0.5 kilograms (kg) is equal to 17.6 ounces    

Answer:

D

Step-by-step explanation:

5/4 can only be greater than 1.

Answer:

Point D is located at 5/4 on the number line. Hope this helps

Answer:

Good day! Use trigonometry to define the formula.

Step-by-step explanation:

The height of the tree that the sun appears just over it top is 12 meters

The situation forms a right angle triangle.

The height of the tree is the opposite side of the triangle.

His distance away from the base of the tree is the adjacent side of the right angle triangle.

Therefore,

Using trigonometric ratio,

tan 32 = opposite / adjacent

tan 32 = h / 20

cross multiply

height of the tree = 20 tan 32

height of the tree = 20 × 0.6248693519

height of the tree = 12.4973870382

height of the tree ≈ 12 meters

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Final answer:

The sum 42 + 24 can be expressed as 24 + 42 using the commutative property of addition, or by decomposing into tens and units for easier mental calculation.

Explanation:

The student is asking for another way to express the sum 42 + 24. One way to approach this is by performing a common mathematical technique known as commutation (or the commutative property of addition), which states that numbers can be added in any order and the sum will remain the same.

So, another way to express 42 + 24 would be 24 + 42. You can also decompose the numbers into tens and units to simplify mental calculation: (40 + 20) + (2 + 4) = 60 + 6 = 66. This demonstrates that there are multiple ways to approach addition, making it easier to perform in my head. Thus, we affirm that mathematics indeed offers many paths to the same answer.

Answer:

[tex]x_1=4.158[/tex]

[tex]x_2=0.8416[/tex]

Step-by-step explanation:

For an equation of the form [tex]ax^2 +bx +c[/tex]

The quadratic formula is

[tex]\frac{-b\±\sqrt{b^2 -4ac}}{2a}[/tex]

In this case the equation is:

[tex]2x^2 - 10x + 7 = 0[/tex]

Then

[tex]a= 2\\b= -10\\c= 7[/tex]

Therefore, using the quadratic formula we have:

[tex]x=\frac{-(-10)\±\sqrt{(-10)^2 -4(2(7)}}{2(2)}[/tex]

[tex]x=\frac{5\±\sqrt{11}}{2}[/tex]

[tex]x_1=4.158[/tex]

[tex]x_2=0.8416[/tex]

ANSWER

[tex]x = \frac{ 5 }{2} - \frac{\sqrt {11} } {2} \: or \: x = \frac{ 5 }{2} + \frac{\sqrt {11} } {2} [/tex]

EXPLANATION

The given quadratic equation is:

[tex] 2{x}^{2} - 10x + 7 = 0[/tex]

Comparing this equation to

[tex] a{x}^{2} + bx + c = 0[/tex]

we have

a=2, b=-10 and c=7.

The solution is given by the quadratic formula;

[tex]x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]

We plug in the values to get,

[tex]x = \frac{ - - 10 \pm \sqrt{ {( - 10)}^{2} - 4(2)(7) } }{2(2)} [/tex]

This implies that

[tex]x = \frac{ 10 \pm \sqrt{ {100} - 56 } }{4} [/tex]

[tex]x = \frac{ 10 \pm \sqrt {44 } }{4} [/tex]

[tex]x = \frac{ 10 \pm 2\sqrt {11 } }{4} [/tex]

[tex]x = \frac{ 5 \pm \sqrt {11 } }{2}[/tex]

[tex]x = \frac{ 5 }{2} - \frac{\sqrt {11} } {2} \: or \: x = \frac{ 5 }{2} + \frac{\sqrt {11} } {2} [/tex]

Answer:

The area of the walls is [tex]2,160\ ft^{2}[/tex]

Step-by-step explanation:

we know that

The area of the walls is equal to the perimeter of the conference room multiplied by the height of the ceiling

so

[tex]A=2[40+50](12)=2,160\ ft^{2}[/tex]