Help needed ASAP will give brainliest.

Answer:

Quadratic

Step-by-step explanation:

Not adding or multiplying

Answer:

x= 432

Step-by-step explanation:

x/12 - 4 = 32

      + 4   + 4

x/12 = 36

(12)x = 36(12)

x = 432

Answer: 2.91666666667

Answer:

(2 1/3) : (4/5) = 35 /12 = 2 11 /12

1. You convert the mixed number (2 1/3) into an improper fraction which is 7/3.

2.Then you find a new numerator so you multiply the whole number (2) by the denominator (3) which is 6.

3 Add the answer (6) to the starting numerator (1). The new numerator equation: 6+1=7.

4.Write the new numerator (7) over the denominator (3)

Two and one seven third is seven thirds.

5. Then you divide: 7/3 : 4/5 = 7/3 * 5/4 = 7*5/ 3*4

6. Multiply (7 and 5) and (3 and 4) which gives you 35/12.

7.Then you transform it back into a mixed number by dividing 35/12 which gives you 2 11/12.

Answer:

Reflection about the y-axis is according to the rule

(x,y)->(-x,y)

Therefore F(x,y) -> F'(-x,y)

The distance between F' and F is (-x,y)-(x,y)=-2x, or the positive distance is 2x.

The given equation, 16x² - y² + 16z² = 4, represents a quadric surface known as an elliptic paraboloid.

To determine the classification, we can examine the coefficients of the squared terms. In this case, the coefficients of x², y², and z² are positive, indicating that the surface is bowl-shaped. Additionally, the signs of the coefficients are the same for x² and z², indicating that the bowl opens upward along the x and z directions.

The negative coefficient of y², on the other hand, means that the surface opens downward along the y direction. This creates a cross-section in the shape of an elliptical parabola.

Considering these characteristics, the given equation represents an elliptic paraboloid.

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In this case the answer is very simple.

We must analyze all the statements to find the correct one.

Therefore, the correct statement would be:

c. All rectangles are quadrilaterals.

That is the solution.

The standard thermometer reads 50°C, the reading of the thermocouple is  0.3922.

To find the reading of the thermocouple when the standard thermometer reads 50°C substitute T = 50 into the equation e = 0.4T - e(T - 100). Let's calculate it:

e = 0.4(50) - e(50 - 100)

e = 20 - e(-50)

e = 20 + 50e

to solve this equation for e. Let's rearrange it:

50e + e = 20

51e = 20

e = 20/51 ≈ 0.3922

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Answer:

B is the correct awnser

The differential equation y'' + 1 = 0 has the general solution y(x) = C₁x + C₂, where C₁ and C₂ are arbitrary constants.

The given equation y'' + (1 cos²x + 1 sin²x) = 0 can be simplified by using the trigonometric identity cos²x + sin²x = 1. Therefore, the equation simplifies to y'' + 1 = 0. The differential equation y'' + 1 = 0 is a second-order linear homogeneous differential equation with a constant coefficient. The characteristic equation associated with this differential equation is r² + 1 = 0. Solving this equation, we find two complex roots: r₁ = i and r₂ = -i. The general solution to the differential equation is y(x) = C₁e^(ix) + C₂e^(-ix), where C₁ and C₂ are arbitrary constants. By using Euler's formula e^(ix) = cos(x) + isin(x), we can rewrite the general solution as y(x) = C₁(cos(x) + isin(x)) + C₂(cos(x) - isin(x)). Simplifying this expression, we obtain y(x) = (C₁ + C₂)cos(x) + (C₁ - C₂)isin(x).

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The equation of the tangent line to the parabola y = 3x² - 2x + 4 at the point (1,5) can be written in the form y = mx + b where m is 4 and where b is 1.

If f(x) = 3x² – 2x + 4, then f'(x) = 6x - 2.
To find f'(1), we plug in x = 1: f'(1) = 6(1) - 2 = 4.
The point (1,5) is on the parabola y = 3x² - 2x + 4.
The slope of the tangent line to the parabola at the point (1,5) is f'(1) = 4.
Using the point-slope form of a line, we can write the equation of the tangent line as:
y - 5 = 4(x - 1)
Simplifying this equation gives us:
y = 4x + 1
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Answer:

Step-by-step explanation:

Answer:First, write the expression

✔ p – 5

.

Second,

✔ substitute

7 in for the variable, p.

Third,

✔ simplify

by

✔ subtracting

7 and 5.

The answer is

✔ 2

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

the line is going down, and the dots are all only one interval away- hope this helps :)

Answer:

Complimentary angles sum to 90°

Angle5 + Angle 6 = 90°

13° + Angle 6 = 90°

Angle 6 = 77°

Step-by-step explanation:

The equation representing the situation is 20(3 cups) - p(2 cups) = 36 cups, where p represents the number of pots knocked over.

The initial amount of soil in the pots is given by 20 pots multiplied by 3 cups per pot, which gives 20(3 cups). The number of pots knocked over is represented by p, and each knocked-over pot loses 2 cups of soil.

Therefore, the total soil lost due to knocked-over pots is p(2 cups). Subtracting this from the initial amount of soil, we get 20(3 cups) - p(2 cups). The result should be equal to the remaining soil, which is 36 cups. Hence, the equation representing this situation is 20(3 cups) - p(2 cups) = 36 cups. This equation relates the number of pots knocked over (p) to the remaining soil (36 cups).

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The equation of a line is y=mx+b

m is the slope

b is the y intercept

Looking at the graph, the y intercept is 10 because the line crosses the y-axis at 10

Since they said the slope is 10, the equation of the line is:

y=10x+10

Answer:

396 in.^2

Step-by-step explanation:

The cushion is shaped like a cylinder with 14 inch diameter and 2 inch height.

We need to find the surface area of the cylinder.

diameter = 14 in.

radius = diameter/2 = 7 in.

height = 2 in.

A = 2(pi)r^2 + 2(pi)rh

A = 2(3.14159)(7 in.)^2 + 2(3.14159)(7 in.)(2 in.)

A = 395.84 in.^2

A = 396 in.^2

The amount of fabric that Maggie will need for manufacturing the cushion is 395.84 sq. inches.

Supposing that a considered cylinder has radius of 'r' units and height 'h' units, then the surface area of that cylinder would be:

\(S = \pi r^2 + \pi r^2 + 2\pi r h = 2\pi r(r + h) \: \rm unit^2\)

The table's diameter is of 14 inches. That means, its radius is of 14/2 = 7 inches.

The cushion is going to have 2 inches extra from all sides, so approximately, it is going to be like a cylinder with radius 7 inches and height 2 inches.

The fabric needed for making cushion (from outer side only) in terms of area is same as the surface area of cylinder with radius of 7 inches and height of 2 inches.

Thus, the amount of fabric that Maggie will need for manufacturing the cushion is \(S = 2\pi r(r + h) = 2\pi \times 7(7 + 2) \approx 395.84 \: \rm in^2\)

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The expression "5 added to the product of 12 and x" can be written as 12x + 5.

The expression "5 added to the product of 12 and x" can be written as:

12x + 5

Here's how we got this answer:

The product of 12 and x is written as 12x.

"5 added to the product of 12 and x" means we need to add 5 to 12x.

Putting these two parts together, we get the expression 12x + 5, which is the final answer.

Therefore, the expression "5 added to the product of 12 and x" can be written as 12x + 5. This is the algebraic representation of the given phrase.

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Answer:

The answer for your first question after just factoring is -(x-6)(x+7). So the answer for the first question is C

The answer to the second question after factoring is -3x(2x+3), which matches Choice A, so the answer to the second question is A.

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

3 divided by 5 is 0.6

This is a terminating fraction since it ends at 6

Hopes this helps please mark brainliest

Answer:

45.22

Step-by-step explanation:

multiplication of 7.2 × 2 × 3.14 is equal to 45.216.

Answer:

=45.24m

Step-by-step explanation:

Circumference=2πr

2×3.142×7.2

=45.24m

Answer:

Options B, D and E

Step-by-step explanation:

Given equation is,

-4x + 5y - 12 = 8

-4x + 5y = 20

If a point given in the options lie on the line, point will satisfy the equation.

Option A.

For a point (5, 0),

-4(5) + 5(0) = 20

-20 = 20

False

Therefore, (5, 0) will not lie on the given line.

Option B

For (-2, 2.4)

-4(-2) + 5(2.4) = 20

8 + 12 = 20

20 = 20

True.

Therefore, (-2, 2.4) will lie on the given line

Option C

For (8, 5),

-4(8) + 5(5) = 20

-32 + 25 = 20

-7 = 20

False

Therefore, (8, 5) will not lie on the line.

Option D

For (10, 12)

-4(10) + 5(12) = 20

-40 + 60 = 20

20 = 20

True.

Therefore, (10, 12) will lie on the line.

Option E

For (0, 4)

-4(0) + 5(4) = 20

20 = 20

True.

Therefore, (0, 4) will lie on the line.

Options B, D and E are correct.

f'(2) is approximately equal to -1.9977. To find f'(2), we can use the chain rule and power rule of differentiation.

First, we differentiate both sides of the equation with respect to x:

f'(x) + 4x³|f(x)|³ + 3x^4f(x)|f(x)|² f'(x) = 0

Next, we substitute x=2 and f(2)=3 into the equation:

f'(2) + 4(2)³|3|³ + 3(2)^4(3)|3|² f'(2) = 0

Simplifying:

f'(2) + 4(8)(27) + 3(16)(9) f'(2) = 0

f'(2) + 864 + 432 f'(2) = 0

Combining like terms:

433f'(2) = -864

Dividing by 433:

f'(2) = -864/433

Therefore, f'(2) is approximately equal to -1.9977.

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We need to round up to the nearest integer, the required sample size is 76 households.

To estimate the required sample size, we can use the formula:

\(n = (z^2 * s^2) / E^2\)

Where:

z is the z-score corresponding to the confidence level (90% = 1.645)

s is the standard deviation of the population (square root of the variance, so s = sqrt(3.61) = 1.898)

E is the maximum error allowed (0.15 gallons)

Plugging in the values, we get:

\(n = (1.645^2 * 1.898^2) / 0.15^2\)

n = 75.57

Since we need to round up to the nearest integer, the required sample size is 76 households.

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The value of given expression is \(10^7\) which can be said as 10 raised to the power 7.

We have to find the value of \(10^5*\frac{10^4}{10^2}\)

It is a question of exponents and powers.

Exponents (Power)

Exponent is defined as the method of expressing large numbers in terms of powers. That means, exponent refers to how many times a number multiplied by itself. It is placed as a superscript over a number. In other words, it indicates that the base is raised to a certain power.

For example, the mass of Earth is 5,97,219,00,00,00,00,00,00,00,00,000 kg. This cannot be read in simple words. Thus, to pronounce these types of numbers we make use of exponents.

Hence, the weight of earth will be written as \(5.97219 * 10^{24}\).

We know that:-

\(x^a*x^b = x^{a+b}\) and,

\(x^a/x^b = x^{a-b}\)

Hence, we can write,

\(\frac{10^4}{10^2} = 10^{4-2} = 10^2\)

Now,

\(10^5*10^2=10^{(5+2)}=10^7\)

Hence, the answer is \(10^7\).

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\( \huge\boxed{♧ \: \mathfrak{ \underline{Answer࿐} ♧}}\)

we know,

\( \boxed{volume = \pi r {}^{2} h}\)

so, volume of each pillar :

\(\longmapsto 3.14 \times 1.7 \times 1.7 \times 12\)

\(\longmapsto108.89 \: m {}^{3} \)

since, there are total 26 pillars,

total volume :

\(\longmapsto108.89 \times 26\)

\(\longmapsto2831.14 \: \: m {}^{3} \)

Answer:

A), C), E)

Step-by-step explanation:

The simplest form is (-2 ±√12)/2.

What is simplification?

To simplify simply means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue. Simplifying procedures is one way to achieve uniformity in work efforts, expenses, and time. It reduces diversity and variety that is pointless, harmful, or unnecessary.

Here, we have

Given: x = (-4 ±√48)/4

We have to simplify the given term.

x = (-4 ±√48)/4

x =  (-4 ±√12×4)/4

x =(-4 ±2√12)/4

Now, we take 2 as common and get

x = (-2 ±√12)/2

Hence, the simplest form is (-2 ±√12)/2.

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To prove DC = 6 units the missing step is ΔDAC ≅ ΔBCA by ASA.

Option C is the correct answer.

There are ways to prove that two triangles are congruent.

- Side-Side-Side (SSS) Congruence.

The three sides of one triangle are equal to the corresponding three sides of another triangle.

- Side-Angle-Side (SAS) Congruence.

The two sides and the included angle of one triangle are equal to the corresponding two sides and included angle of another triangle.

- Angle-Side-Angle (ASA) Congruence.

The two angles and the included side of one triangle are equal to the corresponding two angles and included side of another triangle.

- Angle-Angle-Side (AAS) Congruence.

We have,

AD is parallel to BC

From the figure and the given information,

We have,

∠DAC ≅ ∠BCA

This means,

Angle-Side-Angle (ASA) Congruence

ΔDAC ≅ ΔBCA

Thus,

To prove DC = 6 units the missing step is ΔDAC ≅ ΔBCA by ASA.

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