PLEASE HELP! 25 POINTS

listen the question number then answer

Answer:

-200 feet/20 minutes = -10 feet/minute

The correct answer is C.

When comparing these two sets of number, the first set is harder to find the different as you need to borrow from a column. For instance, when you start subtracting in the 10s place, you cannot take 40 away from 30.

Whereas in the second set, comparing the numbers is easy. They have the same 100s value and the same 10s value. You are simply comparing the 1s place.

Answer:

First, if we compare 645 and 738, the difference is significant, because those number have different units, different tenths and different hundreds.

However, if we compara 645 and 649, the difference isn't significant, because they have the same hundreds, the same tenths, but different units.

So, in terms of comparing numbers as such, we can tell that the difference in each comparison is about units, tenth and hundreds difference.

From this different comparison, the difference operation (subtraction) is also different, because it's not the same to subtract 645 from 738 than from 649, the difference is higher.

(2x)(x^2)+(2x)(x)+(2x)(-2)+(3)(x^2)+(3)(x)+(3)(-2)

Simplifying

(2x)(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Remove parenthesis around (2x)

2x(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Multiply x * x2

2x3 + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Remove parenthesis around (2x)

2x3 + 2x(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Multiply x * x

2x3 + 2x2 + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Remove parenthesis around (2x)

2x3 + 2x2 + 2x(-2) + (3)(x2) + (3)(x) + (3)(-2)

Reorder the terms for easier multiplication:

2x3 + 2x2 + 2 * -2x + (3)(x2) + (3)(x) + (3)(-2)

Multiply 2 * -2

2x3 + 2x2 + -4x + (3)(x2) + (3)(x) + (3)(-2)

Multiply 3 * -2

2x3 + 2x2 + -4x + 3x2 + 3x + -6

Reorder the terms:

-6 + -4x + 3x + 2x2 + 3x2 + 2x3

Combine like terms: -4x + 3x = -1x

-6 + -1x + 2x2 + 3x2 + 2x3

Combine like terms: 2x2 + 3x2 = 5x2

-6 + -1x + 5x2 + 2x3

Answer:

The product is,[tex]-6 + -1x + 5x2 + 2x3[/tex]

explanation:

Simplifying

[tex](2x)(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Remove the parentheses (2x)

[tex]2x(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Multiply [tex]x * x2[/tex]

[tex]2x3 + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Remove the closing parentheses (2x)

[tex]2x3 + 2x(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Multiply [tex]x * x[/tex]

[tex]2x3 + 2x2 + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Remove all parentheses (2x)

[tex]2x3 + 2x2 + 2x(-2) + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Rearrange the terms to make multiplication easier:

[tex]2x3 + 2x2 + 2 * -2x + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Multiply [tex]2 * -2[/tex]

[tex]2x3 + 2x2 + -4x + (3)(x2) + (3)(x) + (3)(-2)[/tex]

Multiply [tex]3 * -2[/tex]

[tex]2x3 + 2x2 + -4x + 3x2 + 3x + -6[/tex]

Reorder the terms:

[tex]-6 + -4x + 3x + 2x2 + 3x2 + 2x3[/tex]

Combine like terms: -4x + 3x = -1x

[tex]-6 + -1x + 2x2 + 3x2 + 2x3[/tex]

Combine like terms: 2x2 + 3x2 = 5x2

[tex]-6 + -1x + 5x2 + 2x3[/tex]

Learn more about here Simplified Product here-

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[tex]2\cdot 10^{3x}=26\\10^{3x}=13\\\log 10^{3x}= \log 13\\3x\log 10= \log 13\\3x= \log 13\\\\[/tex]

[tex]x=\frac{\log 13}{3}[/tex]

lmk if you have questions

To find the exact value of x in the exponential equation 2(10)^3x=26, divide both sides by 2, apply the common logarithm, use the power rule of logarithms, and simplify to find that x equals log(13)/3.

To solve the exponential equation 2(10)³ˣ=26 for the exact value of x using logarithms, follow these steps:

Thus, the exact value of x is log(13)/3.

15.050 < 15.500

notice that 500 is more than 50... so hope this helps a little bit !!!

:)

Answer:

15.050 < 15.500

Step-by-step explanation:

15.050 compare to 15.500

WE need to compare both the decimal numbers

To compare the numbers we compare each digit from left to right

1 is equal to 1

5 is equal to 5

now we compare the number after the decimal point

0 is less than 5 (the numbers in tenths place)

15.050 is less than  15.500

15.050 < 15.500

11 hours because I did the math

Answer:

f(x)=45x

Step-by-step explanation:

if the home is 495 miles away, 11 hours would take to drive home.

f(11)=45X11=495

Answer: (-3,4) and (9,20)

I think these two points will make the answer you have been looking for.

3[3c^(-9)-1]

hope this helps

Answer:

b

Step-by-step explanation:

13/25,

any time you see a prime number in the numerator, its in its simplest form.

For this case we have the following fractions:

22/33 42/81 13/25 18/27

Fraction 1: You can divide the numerator and denominator by 11

[tex]\frac{22}{33}= \frac{2}{3}\\[/tex]

Fraction 2: The numerator and denominator can be divided by 3

[tex]\frac{42}{81}= \frac{14}{27}\\[/tex]

Fraction 3: The numerator and denominator can not be divided by the same number.

[tex]\frac{13}{25}\\[/tex]

Fraction 4: The numerator and denominator can be divided by 9

[tex]\frac{18}{27}= \frac{2}{3}\\[/tex]

Answer:  

A fraction that is written in its simplest form is

Fraction 3: [tex]\frac{13}{25}\\[/tex]

Answer:

11x - 12

Step-by-step explanation:

Distributive property, also called the distributive law of multiplication and division, lets us distribute a number by multiplying it to each of the numbers in a term separately.

We can expand this expression by clearing the parentheses and combining the like terms here by applying the distributive property:

6 (x-2) + 5x

6x - 12 + 5x ---> (6 is multiplied to both the terms, x and -2, separately)

Now we will combine like terms to get:

6x + 5x - 12

11x - 12

Answer:

24 inches.

Step-by-step explanation:

Two sides of an obtuse triangle measure 10 inches and 15 inches.

The length of the longest side is unknown.

We have to find the smallest possible whole number for length of the unknown side.

Since a triangle is possible only when sum of two sides of the triangle is greater than the third side.

Therefore, length of third side < sum of other two sides

length of third side < 10 + 15

length of third side < 25

Therefore smallest whole number length should be 24 inches.

Answer:

it is a linear one i think

The classification of angles 1 and 4 as either linear pairs, vertical angles or neither is impossible without more context or a diagram. Linear pairs are adjacent angles that form a straight line and total 180 degrees, while vertical angles are directly opposite each other from an intersection of two lines and are equal.

Without a proper diagram or more context, it's challenging to determine whether angles 1 and 4 are linear pairs, vertical angles, or neither. However, I can explain what these terms mean. Linear pairs are adjacent angles whose non-common sides form a straight line, adding up to 180 degrees. Vertical angles are angles opposite each other when two lines intersect. They are equal in measure. Unfortunately, without a specific diagram indicating the positions of angles 1 and 4, I can't definitively answer your question.

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Answer: 55 meters

Step-by-step explanation:

Let the height of the building be 'h'.

Since building is standing vertical to the ground making right angle.

Then , the triangle formed is a right triangle .

The given angle of elevation : [tex]32^{\circ}[/tex]

Using trigonometry , we have

[tex]\tan\theta=\dfrac{\text{Perpendicular}}{\text{Base}}\\\\\tan(32^{\circ})=\dfrac{h}{88}\\\\\Rightarrow\ 0.6248693519=\dfrac{h}{88}\\\\\Rightarrow\ h=0.6248693519\times88=54.988502967\approx55\text{ meters}[/tex]

Hence, the approximate height of the building = 55 meters

To calculate the average speed, divide the total distance travelled by the total time taken. The speed is approximately 2.31 mph and 3.385 fps.

To calculate the average speed you divide the total distance travelled by the total time taken. In this case, the distance is one mile and the time is 26 minutes.

So, when you divide distance by time, you get approximately 3.385 fps.

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A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

Final answer:

A mixture is heterogeneous if it has a non-uniform composition, wherein the individual components can often be seen or separated. A mixture is homogeneous if it is uniform throughout, where the components are evenly distributed and cannot be visually distinguished. Examining the uniformity of the mixture's composition allows for differentiation between the two types.

Explanation:

To tell if a mixture is homogeneous or heterogeneous, one must first understand the definitions of these terms. A heterogeneous mixture has a composition that is not uniform throughout. Examples include trail mix, salad, and blood. These mixtures often allow the individual substances within them to be seen or separated by simple means, such as filtration or inspection.

In contrast, a homogeneous mixture is uniform in composition throughout the sample. Examples include air, simple syrup, and seawater. For instance, when salt is dissolved in water to create a saline solution, it is a homogeneous mixture because the salt is evenly distributed throughout the water and no longer visible as a separate substance.

Distinguishing between these two types of mixtures involves examining the uniformity of the mixture's composition. If different samples of the mixture have different compositions, or if the individual parts can be seen, it is heterogeneous. If it is uniform and the components cannot be visually separated, then it is homogeneous.

The product of the expressions 3a + 5 and 6a - 2 is 18a² + 24a - 10. The distributive property is used to multiply each term in the first expression by each term in the second.

The product of the two expressions 3a + 5 and 2a + 4a - 2 can be found using the distributive property. First, combine like terms in the second expression to simplify it to 6a - 2. Now, to find the product, multiply each term in the first expression by each term in the simplified second expression:

Multiply 3a by 6a to get 18a².

Multiply 3a by -2 to get -6a.

Multiply 5 by 6a to get 30a.

Multiply 5 by -2 to get -10.

Combining these products gives you the final answer: 18a² + 24a - 10.

Answer:

about 105

Step-by-step explanation:

I believe opposite on both!

Given equations : Equation A:  4y -3x =16 and

Equation B: -x-8y =3.

We are given a point (-5,0.25) plugging it in first equation

4(0.25) -3(-5) =16

1+15 =16.

16 =16 : Satisfies first equation.

Plugging (-5,0.25) it in second equation.

-(-5)-8(0.25) =3.

5 - 2 = 3.

3=3 : Satisfies first equation.

The answer is 5.

5^2 = 25        25 - 6 = 19

5 x 2 = 10       10 + 9 = 19

ANSWER

[tex]x=10[/tex]

and

[tex]y=20[/tex]

EXPLANATION

Since corresponding angles are equal,

[tex]4x+y=60---(1)[/tex]

Alternate angles are also equal, therefore,

[tex]8x+y=100---(2)[/tex]

Equation (2) minus equation (1) gives,

[tex]\Rightarrow 4x=40[/tex]

[tex]\Rightarrow x=10[/tex]

We put [tex]x=10[/tex] in to equation (1)

[tex]4(10)+y=60[/tex]

[tex]y=60-40[/tex]

[tex]y=20[/tex]

To find x and y in the violin string diagram, use the properties of angles formed by transversals and parallel lines. Corresponding angles and interior angles are key relationships. In the example, x = 15° and y = 90°.

The problem involves understanding the relationships between angles formed by transversals and parallel lines. When a violin bow is placed across parallel violin strings, it forms transversals that create various angles.

Given that the violin strings are parallel, the interior angles formed on the same side of the transversal are supplementary. Let's consider the setup of the diagram:

Example: Suppose the violin strings and the bow are positioned in such a way that we can see the angles formed. Assume the given angles are as follows:

Step 1: Since Angle 1 and Angle 2 are corresponding angles and lie between parallel lines:

30° = 2x → 2x = 30° → x = 15°

Step 2: To find y, use the fact that the sum of angles around a point is 360°. Suppose y is opposite to the sum of Angle 1 and another given angle on the same side:

If the other angle on the same side is 60°:

y = 180° - (Angle 1 + 60°) → y = 180° - (30° + 60°) → y = 90°

Thus, the values of x and y are determined to be 15° and 90°, respectively.

Answer:

The answer is 16

Answer:

12

Step-by-step explanation:

2 times 2 is 4

4 divided by 2 is 2

2 times 2 is 4

2 times 6 is 12

12 divided by 2 is 6

4 plus 2 plus 6 is 12

b= 81 degrees

Explanation:

A straight line is 180 degrees.

180 - 99 = 81

All the angles combined should be equal to 360, forming a circle.

In order to find angle b, we have to know what supplementary angles.

Supplementary angles are two angles that add up to 180°, or in other words, a straight line.

Angle b and the 99 degree angle are supplementary due to them creating a straight line when combined, so they add up to 180°.

To find angle b, subtract 99 degrees from 180.

180 - 99 = 81

Angle b is equal to 81 degrees.

Answer:  x < [tex]\frac{140}{27}[/tex]

Step-by-step explanation:

[tex]\frac{6}{5}x - 12 < 2 - \frac{3}{2}x[/tex]

[tex]10(\frac{6}{5}x - 12) < 10(2 - \frac{3}{2}x)[/tex]

2(6)x - 10(12) < 10(2) - 5(3)x

 12x  -   120  <   20  -  15x

+15x                        +15x      

 27x   - 120  <   20

         +120    +120

27x              <  140

            [tex]\frac{27x}{27} < \frac{140}{27}[/tex]

              x < [tex]\frac{140}{27}[/tex]

7 x [tex]10^{7}[/tex]  times 14.6 x[tex]10^{5}[/tex]

Multiply 7 and 14.6 and add exponents

Final Answer 102.2 and [tex]10^{5}[/tex]

hope that helps :)

7.2 x 10 x 5 x 14.6 x 10 x 5

7.2 x 100000 x 14.6 x 100000

720000 x 1460000 = 1.0512 x 10 x 12