algebra 2! 25 points!! pls help!

Answer:

\(15x^{9} -40x^{6}\)

\(5x^{6} (3x^{3} -8)\)

Step-by-step explanation:

Answer:

15x⁹ - 40x⁶

Step-by-step explanation:

5x⁴ (3x⁵– 8x²)​

apply the distributive law: a(b - c) = ab - ac

a = 5x⁴ , b = 3x⁵ , c = 8x²

= 5x⁴ * 3x⁵– 5x⁴ * 8x²​

= 15x⁹ - 40x⁶

Answer:

one equation is 37+109

Step-by-step explanation:

I hope this helps. I hope this is what you are looking for. I am sorry if it isn't.

The solution to the given problem is 25/88. The solution has been obtained by applying BODMAS rule.

What is the BODMAS rule?

The letters BODMAS stand for Bracket, Of, Division, Multiplication, Addition, and Subtraction. An explanation of a mathematical expression's execution sequence is provided by the BODMAS. According to the BODMAS rule, brackets must be answered first, then powers or roots (i.e. of), Division, Multiplication, Addition, and finally Subtraction.

We are given an expression as (3/11 + 2/11) * 5/8

Now, as per the BODMAS rule, we will first solve the brackets.

On solving the brackets, we get

5/11 * 5/8

Now, on solving it further, we get

5/11 * 5/8 = 25/88

Hence, the solution to the given problem is 25/88.

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Answer:

73 u have to add any digit either at right or left therefore

73+11=

them multiply by 36

73×36

Addison and multiplication is t a e answer

Answer:

There are two solutions to the problem.

The numbers are 6732 and 2736.

Step-by-step explanation:

36 = 4*9

The four digit number must be divisible by 4 AND by 9.

The last two digits must be divisible by 4.  So only 2 and 6 are possible.

X732, X736.

X must be such that the four-digit number is divisible by 9.

7+3+2=12, so a 6 to make the sum of digits = 18, hence divisible by 9.  So 6732 is divisible by 36.

7+3+6 = 16, so a 2 to make 2736 whose sum of digits = 18, hence the four digit number is divisible by 9.  So 2736 is divisible by 36.

There are two solutions to the problem.

The numbers are 6732 and 2736.

The volume of a cylinder is

Where r = 18, h = 13.5, and pi = 3.14.

Answer:

1, 2 and 3  (I, II and III)

Step-by-step explanation:

Since the slope is positive (3) in the equation y = 3x + 1, it means that the graph has a positive slope, meaning the line slopes up from left to right.

The y intercept is 1

the x intercept is:  

0 = 3x + 1

x = 1/3

Therefore, the graph of y = 3x + 1 lies in quadrants I, II and III.  Graph the equation to prove this.  

The likelihood that the diameter of a chosen bearing is more noteworthy than 138 mm can be too represented as 0.9641.

To illuminate this issue, we are able to utilize the standard normal distribution equation:

z = (x - μ) / σ

where:

x (the chosen diameter) = 138 mm

μ (the mean diameter) = 147 mm

σ (the standard deviation) = 5 mm

So, the z-score is:

by substituting , the above values we get the z value as

z = (138 - 147) / 5 = -1.8

To discover the likelihood that the distance across of a selected bearing is more noteworthy than 138 mm, we need to discover the area beneath the standard ordinary dissemination bend to the correct of z = -1.8.

Able to utilize a standard ordinary dispersion table or calculator to discover this likelihood. Employing a calculator, we will discover the range to the correct of z = -1.8 to be 0.9641.

Subsequently, the probablity that the diameter of a chosen bearing is more prominent than 138 mm is 0.9641 (adjusted to four decimal places).

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Answer:

See explanation.

Step-by-step explanation:

The question is not very clear, but I am assuming that you are asking how to get from 30/8 to 3 6/8

This is a mere simplification problem. We have simplified 30/8 into 3 6/8.

To start, let's check out the multiples of 8 that are less than 30

8, 16, 24. We want the largest multiple, 24. here we have

\(\frac{24}{8} + \frac{6}{8}\)

Simplify 24/8 into 3.

Now you're done!

3 6/8!

Answer:

I got 3.60

Step-by-step explanation:

I used a^2 + b^2 = c^2.

2^2 + 3^2 = c^2 which is the hypotenuse ( the slide)

^^^^^^^^^^these are the legs that make up the right angle. FIRST get the square root of those and add them. THEN the total of that which is 13. Square root 13...√13 and it gives you 3.6055512etc.

The equation of the hyperbola is x²/79²-y²/504.71² = 1

A hyperbola is a type of smooth curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set. A hyperbola has two pieces, called connected components or branches, that are mirror images of each other and resemble two infinite bows.

Given that, a hyperboloid is a 3d shape whose cross-sections are hyperbolas. We need to find the equation of the hyperbola,

Since, the hyperbola center is at origin, therefore,

The equation will be,

x²/a²-y²/b² = 1

The smallest diameter is 156 m,

Therefore,

2a = 156

a = 78

The diameter is at is 158.6 m at its highest point, 44 m above, therefore, the point, (79.3, 44) lie at the hyperbola,

Put the values in the main equation,

79.3²/79² - 44²/b² = 1

44²/b² = 79.3²/79² -1

44²/b² = 0.0076

b² = 44²/0.0076

b² = 254,736.842

Therefore, the equation will be;

x²/79²-y²/504.71² = 1

Hence, the equation of the hyperbola is x²/79²-y²/504.71² = 1

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Work Shown:

\(t = \frac{\overline{x}-\mu}{\frac{s}{\sqrt{n}}}\\\\t = \frac{113-117}{\frac{11}{\sqrt{28}}}\\\\t \approx \frac{-4}{\frac{11}{5.291503}}\\\\t \approx \frac{-4}{2.078804}\\\\t \approx -1.924183\\\\t \approx -1.924\\\\\)

In the intermediate steps, I rounded to 6 decimal places. The final answer is rounded to 3 decimal places (to the nearest thousandth).

Answer:

See Below

Step-by-step explanation:

angle BAK = 128

Find KAS

180 - 128 = 52

KAS = 52

find BKA and ABK

360 -128 = 232

232/2 = 116

BKA =116

ABK = 116

find AKS

180 - 116 = 64

AKS =64

Now you have KAS and AKS

add together and subtract sum from 360 to find BSK

52 + 64 = 116

360 - 116 =244

Let me know if incorrect, plz.

Hope this helps=)

\(y_{minimum} = - 5.2 \\ y_{maximum} = - 5.2 + 1.1 \\ y_{maximum} = - 4.1\)

\(midline = \frac{y_{maximum} + y_{minimum} }{2} \\ midline = \frac{ - 5.2 - 4.1}{2} = \frac{ - 9.3}{2} = - 4.65\)

\(midline \: \: \: \: y = - 4.65\)

Answer:

3rd and 4th options

Step-by-step explanation:

(12)

(f + g)(x)

= f(x) + g(x)

= x - 2 + 5x - 1 ← collect like terms

= 6x - 3

(13)

(g • f)(x)

= g(x) × f(x)

= - 3x(6x² - 3x) ← multiply each term in the parenthesis by - 3x

= - 18x³ + 9x²

Answer: =27x+14

Step-by-step explanation: hope this help :)

Let's simplify step-by-step.

4(5x+2)+7x+6

Distribute:

=(4)(5x)+(4)(2)+7x+6

=20x+8+7x+6

Combine Like Terms:

=20x+8+7x+6

=(20x+7x)+(8+6)

=27x+14

Answer:

=27x+14

Answer:

B

Step-by-step explanation:

We can see that both functions are decreasing in [0,4]

f decreased with 765 against 800 for g

g decreased faster

Answer:

Step-by-step explanation:

Step 1: Convert the discounted percent to decimal

20% = 0.2

Step 2: Multiply the discount to the item regularly priced

0.2(65.00) = 13

So, Bill received a $13 discount, therefore, the amount he paid AFTER his discount is:

Step 3: Subtract the result (the discount Bill received) from the regular price

$65.00 - $13.00= $52.00

Therefore, Bill paid $52.00

Step 1: Multiply the wholesale price for a pillow by the marked-up the wholesale price

$4.50 × 40% = 1.8

\(\frac{4.50}{x}=\frac{100\%}{40\%}\)

\(\frac{x}{4.50}=\frac{40}{100}\)

x = 1.8

Step 2: Add the result to the wholesale price for the pillow

4.50 + 1.8 = $6.3

Step 3: Round to the nearest cent

Add a zero behind the result = 6.30

Therefore, the price of the pillow in the department store is $6.30

The scale factor of the dilation must be greater than 1. if the image A'B'C' is bigger than the preimage ABC

If the image A'B'C' is bigger than the preimage ABC, then the scale factor of the dilation must be greater than 1.

In other words, the length of any segment in the image is larger than the corresponding segment in the preimage by the same factor.

Since D is the center of the dilation, we can use the ratio of the corresponding side lengths of the image and preimage triangles to find the scale factor.

For example, if we want to find the scale factor for A', we can use:

scale factor = B'C'/BC

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Sarah's charges per hour for working during the week will be $9.5.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

Sarah is a nanny who bills clients at various prices depending on whether she is working during the week or on the weekend. She worked 45 hours in a single week for a salary of $902.50, of which 5 hours were on the weekend. She worked 50 hours the next week, 10 of which were on the weekend, and made 1045 dollars.

Let x be the charge per working hour and y be the number of charges per hour during the weekend. Then the equation will be

45x + 5y = 902.5           ...1

50x + 10y = 1045

25x + 5y = 522.5          ...2

Subtract equation 2 from equation 1, then we have

45x - 25x = 902.5 - 522.5

20x = 380

x = 19

And the value of y will be

25 (19) + 5y = 522.5

475 + 5y = 522.5

5y = 47.5

y = 9.5

Sarah's charges per hour for working during the week will be $9.5.

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40 necklaces before

72 necklaces now

40 ------------------------- 100%

72 ------------------------- x

x = (72 x 100)/40

x = 7200/40

x = 180%

Result = 180%

It seems like Yvonne was using a technique called meta-analysis. Meta-analysis is a statistical method that combines the results of multiple studies to draw an overall conclusion.

In this case, Yvonne reviewed the scientific literature on the effects of gum-chewing on attention among middle schoolers and found that 23 experiments had been conducted on this topic. She then performed a series of statistical tests to analyze the data from these studies collectively.

By synthesizing the findings from multiple studies, meta-analysis allows researchers to obtain a more comprehensive understanding of the topic and draw more reliable conclusions. It provides a way to quantitatively summarize the results and identify patterns or trends across different studies. So, Yvonne used meta-analysis to reach an overall conclusion from the group of studies she reviewed.

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Answer:

s>761

Step-by-step explanation:

I think

The statement that proves that angle XWY is equal to angle ZYW is

A. If two parallels are cut by a transverse, then alternate interior angles are congruent

Alternate interior angles are a pair of angles that are formed on opposite sides of a transversal line when two parallel lines are intersected by the transversal.

When a transversal intersects two parallel lines, it creates eight angles. Among these angles, the alternate interior angles are located on the inside of the parallel lines and on opposite sides of the transversal.

In a parallelogram, the two opposite sides are parallel to each other hence the line crossing them will lead to formation of alternate interior angles

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Answer: random sampling

Step-by-step explanation:

Because psychologists generally use college students as research participants, the research does not involve random sampling.

Random sampling is when each sample has an equal chance of being selected. Since the psychologists are targeting a particular set of students, the random sampling might not be applicable in this case.

Answer:

Step-by-step explanation:

You keep the same slope since it's supposed to be parallel. But first you need to write it in slope intercept form. So the y can't have a number in front of it, so you must divided everything after the equal sign by the 3. So the equation becomes y=2/3x−1. Now you plug in the points to find a parallel equation using point slope form y−(4)=(23)(x−(−3)). Then you solve that and you get y=2/3x+6.

Answer:

n<50

Step-by-step explanation:

7/2*5n + 14<49

7n/2*5+14<49

(7n)+(2*5)14/2*5 <49

7n+10*14/2*5 <49

7n+140/2*5 <49

7n+140/10 <49

7n+140 < 10*49

7n+140 < 490

(7n+140)+(-140)<490+(-140)

7n+140-140<490-140

7n<350

7n/7 < 350/7

n<2*5^2*7/7

n<2*5^2

n<2*25

n<50

Answer:

-9,40

Step-by-step explanation:

Midpoint Formula:

\((\frac{x^{1} +x^{2} }{2},\frac{y^{1} +y^{2} }{{2} } } )\)

Answer:

Midpoint = (−9,40)

Step-by-step explanation:

Answer:

88

Step-by-step explanation:

memorize this formula:

V = 1/3AH

a is base area

h is height

so V = 1/3 *22*12= 88