I NEED HELP, with this science question!!!! +21 points

(The reason I put a Science question under Mathematics is because I couldn't find Science)

The first statement says that if we multiply two positive real numbers and get a result larger than 400, then at least one of the two numbers must be greater than 20 Second statement talks about the sum of two positive real numbers being greater than 400

Similarly, the second statement talks about the sum of two positive real numbers being greater than 400. In this case, if both numbers were less than or equal to 200, their sum would be less than or equal to 400. Thus, for the sum to be greater than 400, at least one of the two numbers must be greater than 200.

These statements are important in solving problems related to real-life scenarios, such as finding the dimensions of a room or the possible values of a variable in an equation. They help us identify the minimum value of a variable or the minimum condition that must be met to achieve a certain result.

In conclusion, the two statements show us that the multiplication and addition of real numbers have certain conditions that must be met to obtain a specific result. They are useful in problem-solving and understanding mathematical concepts.

Know more about real numbers here:

https://brainly.com/question/10547079

#SPJ11

Complete question is

"a. If the product of two positive real numbers is larger than 400, then at least one of the two numbers is larger than 20.

b. If the sum of two positive real numbers is larger than 400, then at least one of the two numbers is larger than 200."

Answer:

0.068 or 6.826%

Step-by-step explanation:

In order to calculate the proportion of disks that are defective, we need to divide the number of defective disks by the total amount of disks that were chosen in the given sample. Using the data provided this would be the following calculation...

37 / 542 = 0.068

We can multiply this by 100 to get the percentage value

0.068 * 100 = 6.826%

Therefore, roughly 6.826% of the entire disk population would be defective.

Answer:

A terminating decimal

Step-by-step explanation:

Because it doesn't cause the number to be repetitive. It just ends right there at 2.

It can be either. If it is 0.2, then it is terminating.

If it is 0.2222222 and so on, it is repeating.

Hope this helps. :)

Answer:

2.5

Step-by-step explanation:

5 by 2: 2.5

Answer:

56.25%

Step-by-step explanation:

800 - 350 = 450

1% of 800 = 8 (800 divided by 100)

450 divided by 8 = 56.25

Answer:

56.25% are girls

Step-by-step explanation:

Given there are 350 boys out of a total of 800, then

number of girls = 800 - 350 = 450 , thus percentage of girls is

\(\frac{450}{800}\) × 100%

= \(\frac{450(100)}{800}\) = 56.25%

99 peachy 3 digit numbers when every digit in a number is either a 3 or close to a 3.

Given that,

If every digit in a number is either a 3 or close to a 3, we refer to that number as being "peachy." In contrast to the numbers 32523, 786, 340, and 3999, which are not peachy, the digits 333, 83, 303, and 3773 are all sweet.

We have to find how many lovely 3-digit positive numbers are there.

We know that,

This is the same as listing all the two-digit numbers with one or more threes for two-digit numbers.

There are 10 in the range 30–39

Each ten-point range has one.

They are 13, 23, 33, 43,…

So, that's 9.

Because we double counted 33, the total is 18.

For 3 or more digits, this problem becomes significantly more intriguing.

Using what we know about two digit numbers, it is best to proceed iteratively.

So, for three-digit integers with a three as the initial digit, all 18 digits can be included.

2 digit numbers above plus 03.

That's 19.

Only the 10 in the range of 30-39 can be included for those whose first digit is not a 3.

That's an additional 80.

Therefore, 99 peachy 3 digit numbers when every digit in a number is either a 3 or close to a 3.

To learn more about number visit: https://brainly.com/question/17429689

#SPJ4

The sequence cos(0),cos(π),cos(2π),cos(3π),cos(4π),… can be represented as a function k: N -> R, where N is the set of natural numbers and R is the set of real numbers. The domain of the function is the set of natural numbers, and the codomain is the set of real numbers. The function l: N -> {-1,1}, where l(n) = (-1)^(n).

The sequence 1,14,19,116,… can be represented as a function f: N -> N, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: f(1) = 1, f(2) = 14, f(3) = 19, f(4) = 116, and so on.
The sequence 13,19,127,181,… can be represented as a function g: N -> N, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: g(1) = 13, g(2) = 19, g(3) = 127, g(4) = 181, and so on. The domain of the function is the set of natural numbers, and the codomain is also the set of natural numbers. We can see that this sequence is not equal to any of the other sequences given.

The sequence 1,−1,1,−1,1,−1,… can be represented as a function h: N -> {-1,1}, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: h(1) = 1, h(2) = -1, h(3) = 1, h(4) = -1, and so on. The domain of the function is the set of natural numbers, and the codomain is the set {-1,1}. We can see that this sequence is equal to the function f: N -> {-1,1}, where f(n) = (-1)^(n+1).

To know more about function visit:-

https://brainly.com/question/30721594

#SPJ11

Answer:

As,

5x - 2 + 5x - 2 + 3x + 1 = 13x - 3 = 42

But here,

13x - 2 which is not equal to 13x - 3

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = (10x - 4) + (3x + 1) = 42

But here,

(10x - 2) + (3x + 1) which is not equal to (10x - 4) + (3x + 1)

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = 2(5x - 2) + 3x + 1 = 42

But here,

2(5x-2)+2(3x+1) which is not equal to 2(5x - 2) + 3x + 1

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = 42

Also,

5x-2+3x+1+5x-2 equal to 5x-2+3x+1+5x-2

Hence, it's correct.

Answer:

A and D is right

Step-by-step explanation:

I did the quiz and use the answer and it was right

Answer:

Step-by-step explanation:

Equation of the line:

y = -0.375x – 9.25

or

y =  

- 3 x

8

–  37

4

When x=0, y = -9.25

When y=0, x = -24.666666666667

Answer:A function f(x) is even if f(-x) = f(x). The function is odd if f(-x) = -f(x). An even function has reflection symmetry about the y-axis. An odd function has rotational symmetry about the origin.

Step-by-step explanation:

The function is even when f(-x) = f(x) and is odd when f(-x) = -f(x).This has been obtained using even-odd functions.

What are even-odd functions?

When the output value of a real-valued function, f(x), is equal to f(x), for all values of x inside the domain of f, the function is said to be an even function.

It is claimed that a real-valued function f(x) is an odd function when, for all values of x in the domain of f, the output value of f(-x) is equal to the negative of f(x).

We have an even function if we have an expression that is equivalent to f(x) and we have an odd function if we obtain an expression that is equivalent to -f(x).

If we take a function and substitute x for -x, simplify the result, and then compare it to what you started with, you can "determine algebraically" if the function is even, odd, or neither.

The function is even if you come out with exactly what you started with (i.e., if f (-x) = f (x), in which case all of the signs are the same. If you come out with exactly the opposite of what you started with (i.e., if f(-x) = -f (x), in which case all of the signs are switched), it is an odd function.

Hence, the function is even when f(-x) = f(x) and is odd when f(-x) = -f(x).

Learn more about even-odd functions from the given link

https://brainly.com/question/8493048

#SPJ4

Answer:

ll available yellow and red flowers at the two businesses

Population: all available flowers at the two businesses

Step-by-step explanation:

The sample and population should be sample represents all yellow and red flowers while the population represents all flowers.

The entire group about whom you want to make conclusions is referred to as a population. The particular group from which you will gather data is known as a sample. The sample size is always smaller than the population as a whole. A population in research doesn't usually refer to humans.

An entire group from which a conclusion should be derived is referred to as a population. The sample, on the other hand, refers to the population from which the data is drawn.

So based on this, we can say that the sample represents all yellow and red flowers while the population represents all flowers.

Learn more about population here:

brainly.com/question/9882283

#SPJ2

Answer:

  the can with the 5-inch radius will cost more

Step-by-step explanation:

The cost will be given by the formula ...

  cost = 1.40 × (top & bottom area) + 0.90 × (lateral area)

In terms of radius and height the areas are ...

  top & bottom area = 2πr²

  lateral area = 2πrh

So, the total cost of a can with radius r and height h is ...

  c(r, h) = 1.40·2πr² +0.90·2πrh

Filling in the given values and doing the arithmetic, we find the costs to be ...

  c(4, 5) = $253.84

  c(5, 4) = $333.01

The cost of the can with the 5-inch radius is the greatest.

Answer:

The cylinder with radius of 5 inches and height of 4 inches costs more to manufacture.

Step-by-step explanation:

First Can:

Top and Bottom Surface Area = 2(pi(4)^2) = 2(16pi) = 32 pi = 100.53 square inches

Cost for top and bottom surface area = 1.40 * 100.53 = $140.74

Curved Surface Area = 2pi*r*h = 2*pi*4*5 = 40 pi = 125.66 square inches

Cost for Curved Surface Area = 125.66 * 0.90 = $113.10

Total Cost = $140.74 + $113.10 = $253.84

Second Can

Top and Bottom Surface Area = 2(pi(5)^2) = 2(25pi) = 50 pi = 157.08 square inches

Cost for top and bottom surface area = 1.40 * 157.08 = $219.91

Curved Surface Area = 2pi*r*h = 2*pi*5*4 = 40 pi = 125.66 square inches

Cost for Curved Surface Area = 125.66 * 0.90 = $113.10

Total Cost = $219.91 + $113.10 = $333.01

So, the cylinder with radius of 5 inches and height of 4 inches costs more to manufacture.

The probability that she makes correct guesses 14 times or more is 0.0582 and this probability does not seem to verify her claim

Number of tosses of coin  n = 20

probability she guesses correctly p = 0.5

Probability she guesses incorrectly q = 1- p = 0.5

P(X < A) = P( z*σ + μ < A) = P(z < (A-μ)/σ)        (1)      ( ∵ we know z = x - μ/σ)

Mean = μ  = np = 20 * 0.5 = 10

Standard deviation = σ

Standard deviation σ = √npq = √(20 *0.5*(1-0.5) = √5 = 2.236

Probability of being correct 14 times or more

P(X ≥ 14) = 1 - P(X < 13.5)      

              = 1 - P(Z < (13.5 - 10)/2.236)         (using 1)

              = 1 - P(Z < 1.57)

               = 1 - 0.9418

               = 0.0582

Here, the probability of getting 14 or more is 0.0582 and it is usually as the probability is more than 0.05. Thus this probability does not verify her claim

Problem based on normal distribution

brainly.com/question/14919097

#SPJ4

The expression \((3xy^{-3})^{-2}\) without negative exponents is  \(\frac{y^6}{9x^2}\).

Some common rules of exponents are

xᵃ×xᵇ = xᵃ⁺ᵇ.

xᵃ/xᵇ = xᵃ⁻ᵇ.

Addition and subtraction of exponents are only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.

Given, An expression in exponents \((3xy^{-3})^{-2}\).

Now, Changing the place of exponents from the numerator to the denominator or vice versa changes its sign.

Therefore, \((3xy^{-3})^{-2} = 3^{-2}x^{-2}y^{6}\).

\(3^{-2}x^{-2}y^{6} = \frac{y^6}{3^2x^2}\).

\(\frac{y^6}{3^2x^2} = \frac{y^6}{9x^2}\).

learn more about exponents here :

https://brainly.com/question/5497425

#SPJ1

Let x be the number of child tickets sold

Let y be the number of adult tickets sold

Amount received for the child tickets: 5.90x

Amount received for the adult tickets: 9.40y

Total sales of 1001.30:

127 tickets were sold:

Use the two equations above as a system of equations, to solve it:

1. Solve y in the second equation.

2. Use the value you get in step 1 to substitute y in the first equation:

3. Solve x:

The value of x is 55

Answer:

0.5 is correct answer hope it helps

Answer:

one proportion is 15 miles over 2.5 hours -  yesterday is M miles over 4 hours (?)

Step-by-step explanation:

Answer:

HELOOOOOOOOOOO the answer is, 545.32

Step-by-step explanation:

You need a score of 72 out of 100 on exam 2 to perform as well as you did on exam 1.

To determine the score you need on exam 2 to perform as well as you did on exam 1, given the mean and standard deviation for exam 2 and the scores for exam 1, you can use the formula for z-scores.

The formula is :z = (X - μ) / σ,

where X is the score you received on exam 1, μ is the mean score for exam 1, and σ is the standard deviation for exam 1.

To find the score you need on exam 2, you can rearrange the formula as follows: X = z * σ + μ, where z is the z-score you calculated for your score on exam 1.

To calculate the z-score for your score on exam 1, you can use the formula: z = (X - μ) / σ = (87 - 79) / 4 = 2.T

o find the score you need on exam 2 to perform as well as you did on exam 1, you can substitute the values you have into the formula:

X = z * σ + μ = 2 * 6 + 60 = 72.

So, you need a score of 72 out of 100 on exam 2 to perform as well as you did on exam 1.

Know more about standard deviation here:

https://brainly.com/question/13498201

#SPJ11

Answer:

The first option is correct

Answer:

Distance cover by Alyson = 16 miles

Step-by-step explanation:

Given:

Distance cover together = 39 miles

Assume;

Distance cover by Jeff = a

Distance cover by Alyson = a - 7

Find:

Distance cover by Alyson

Computation:

a + (a - 7) = 39

2a - 7 = 39

2a = 46

a = 23

Distance cover by Alyson = a - 7

Distance cover by Alyson = 23 - 7

Distance cover by Alyson = 16 miles

Combinations and sequences are widely used in mathematics to explain and assess situations in which the order or selection of components might influence the final result.

A combination in mathematics is a selection of elements from a set with distinct members, where the order of selection is irrelevant. A combination is a mathematical approach for determining the number of potential arrangements in a set of objects when the order of the selection is irrelevant. You can choose the components in any order in combinations. A combination is a method of picking elements from a collection when the order of selection is irrelevant. Assume we have three integers P, Q, and R. Combination defines how many possibilities we may choose two numbers from each set.

Here,

A combination is a grouping of things from a bigger set in which the order of the components is irrelevant. A sequence is a collection of elements that are ordered in a precise order. Combinations and sequences are frequently used in mathematics to describe and evaluate situations where the order or selection of components might impact the final outcome, such as in combinatorics, probability, and statistics.

To know more about combination,

https://brainly.com/question/20211959

#SPJ4

Complete question:

A combination of values that, when arranged correctly, result in a final value. true/false

A triangular frame has two edges lengths measuring 18 inches and 12 inches. The possible value of length for the third side is 32 in.

A triangular frame has two side lengths measuring 18 inches and 12 inches. as we know that the sum of any two sides of a triangle is always greater than the third side.

That is, the third side < 18 +12

third side < 30

according to the question, the option that fits perfectly is 32in.

Hence, The possible value of edges for the third side is 32 in.

To learn more about Triangle from the given link

https://brainly.com/question/2773823

#SPJ1

Answer:

NKKNKND FG

Step-by-step explanation:

Answer:

\(\displaystyle h'(0) = -5\)

Step-by-step explanation:

We are given the function:

\(\displaystyle h(x) = 3f(x) -2g(x) - 5\cos x - 3\)

And that f'(0) = 3 and g'(0) = 7.

And we want to determine the value of h'(0).

Find h'(x). We can take the derivative of both sides:

\(\displaystyle h'(x) = \frac{d}{dx}\left[ 3f(x) - 2g(x) - 5\cos x - 3\right]\)

Expand and simplify:

\(\begin{aligned}\displaystyle h'(x) & = \frac{d}{dx}\left[ 3f(x) - 2g(x) - 5\cos x - 3\right] \\ \\ & = \frac{d}{dx}[3f(x)] + \frac{d}{dx}[-2g(x)] + \frac{d}{dx}[-5\cos x] + \frac{d}{dx}[-3]\\ \\ & = 3f'(x) -2g'(x) +5\sin x\end{aligned}\)

Therefore:

\(\displaystyle h'(0) = 3f'(0) -2 g'(0) + 5 \sin (0)\)

Substitute and evaluate:

\(\displaystyle \begin{aligned} h'(0) & = 3(3) - 2(7) + 5(0) \\ \\ & = (9) - (14) + (0) \\ \\ & = -5\end{aligned}\)

In conclusion:

\(\displaystyle h'(0) = -5\)

The current share price of Burkhardt Corp. is $65.06.

To determine the current share price of Burkhardt Corp., we can use the dividend discount model (DDM). The DDM calculates the present value of all future dividends to determine the stock's intrinsic value.

The company pays a constant dividend of $14.90 for the next six years and then stops paying dividends forever. We need to calculate the present value of these future dividends.

Using the formula for the present value of a perpetuity,

we find that the present value of the six years of dividends is:

PV =

\(D / (1 + r) + D / (1 + r)^2 + ... + D / (1 + r)^6\)

Where:

PV = Present value of dividends

D = Dividend payment

r = Required return rate

Plugging in the given values, we have:

PV =

\(14.90 / (1 + 0.10) + 14.90 / (1 + 0.10)^2 + ... + 14.90 / (1 + 0.10)^6\)

Calculating this sum, we find the present value of the six years of dividends to be approximately $65.06.

Learn more about DDM here:

https://brainly.com/question/31603195

#SPJ1

Answer:

I hope this works

Step-by-step explanation:

look at the picture

Answer:

yes they are equivalent

Step-by-step explanation:

trust me

Answer:

If angle dgf as an angle of 108

that means that the equation would look like this x + 4x-2=108

= 5x-2=108

then you solve for x

5x=110

110/5 = 22 = x

hope that answers your question

Step-by-step explanation: