please help I have 20 points to spare and I will mark you as brainliest​

Using properties of right angle, The value of a will be 32 units.

Particular Right Triangle Formula

The right triangle formula, which states that the square of a right-angled triangle's right triangle is equal to the product of its other two squares, is the fundamental Pythagoras theorem formula.

How long are the other two legs if a hypotenuse of a triangle with a 45°, 45°, and 90° angle is 32 units.

We are aware that Leg: Ankle: Length x = x: x: x2 is the formula for a triangle with a 45°, 45°, and 90° angle.

We can state that x2 = 32 because it is a known that the hypotenuse equals 32. As a result, x = 3 is determined.

After replacing this number of x = 3, the lengths of the empty sides may now be determined.

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Complete question -

Find values of a and b -

If Caron gives $75, he will get $21 as a change, when he buys a constellation display.

To estimate the amount of change Caron will get back, we need to calculate the total cost of the two-sided tape and the star stickers. The two-sided tape costs $12 and Caron wants to buy 3 packs of star stickers which cost $14 each, so the total cost of the star stickers is 3 * $14 = $42. The total cost of both the two-sided tape and the star stickers is $12 + $42 = $54.

If Caron gives $75, he will get $75 - $54 = $21 as change. This is a rough estimate of the amount of change Caron will get back, and it's always a good idea to have a little extra money in case the actual cost is slightly higher.

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The total number of people are 1064 to whom the single cell phone towers are assigned in a particular city.

In a graphical or tabular format, a frequency distribution displays the frequency of repeated entries. It provides a visual representation of the frequency of various items or counts their occurrences.

There are total of 44,700 people in the city and total of 42 cell ,

so to find out the number of people using single cell tower is,

Number of people on single cell tower = 44700/42

=1064.285 ≈ 1064 people

The gathered information is arranged in tables using the frequency distribution method. The information might include student grades, local weather information, volleyball match point totals, etc. We must provide data in a relevant way for improved understanding after data gathering. Create a table that contains a summary of all the data's characteristics. The term "frequency distribution" refers to this.

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The multiple of 2⅓, add 2¼. is 2 7/12.

A multiple in mathematics is created by multiplying any number by an integer. In other words, if b = na for some integer n, known as the multiplier, it can be said that b is a multiple of a given two numbers, a and b. This is equivalent to stating that b/a is an integer if an is not zero.

In other words, the product of 4 and any natural integer is the multiple of 4. For instance, the result of multiplying 4 by 4 is 16, making 16 a multiple of 4. Examples of multiples of four are 4, 12, 20, 24, and so forth.

Start at 2⅓, add 2¼. I need the first 4 multiples​?

→2 1/3+2 1/4

⇒2 3+4/12

⇒2 7/12

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The solution to sin(t) is sin(t) = -√[1 -  cos²(t)]

From the question, we have the following parameters that can be used in our computation:

The angle t is the quadrant IV

This means that

sin²(t) + cos²(t) = 1

Subtract cos²(t) from both sides of the equation

So, we have the following representation

sin²(t) = 1 -  cos²(t)

Take the square root of both sides

sin(t) = ±√[1 -  cos²(t)]

sin(t) is negative in quadrant IV

So, we have

sin(t) = -√[1 -  cos²(t)]

Hence, the solution is sin(t) = -√[1 -  cos²(t)]

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It will take 70 days for the population of bacteria to reach 10,000 from 1000, if it is growing according to the Malthusian model and doubling itself in 10 days.

This can be calculated using the exponential growth formula: N(t) = N0 * (1 + r)^t, where N0 is the initial population size (1000), r is the growth rate (2/10 = 0.2), and t is the time in days (70).

The Malthusian model of population growth is an exponential growth model developed by Thomas Robert Malthus in 1798. It states that the population of a species increases exponentially, doubling every generation, and is limited only by the available resources.

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The length of the other side of the triangle is 30 cm. Thus, option b is correct.

The hypotenuse's square is equal to the sum of the squares of the other two sides if a triangle has a straight angle (90 degrees), according to the Pythagoras theorem. Keep in mind that BC² = AB² + AC² in the triangle ABC signifies this. Base AB, height AC, and hypotenuse BC are all used in this equation. The longest side of a right-angled triangle is its hypotenuse, it should be emphasized.

Here given that  hypotenuse = 32 and one side = 16

Using Pythagoras theorem

32² = 16² + x²

x = [tex]\sqrt{32^2 - 16^2}[/tex]

x = 30

Hence, the length of the other side of the triangle is 30 cm.

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If the Heptagon  has been dissected into five triangle , the the proof that sum of the interior angle of any heptagon is always 900° is shown below .

To prove that the sum of the interior angles of a heptagon is 900°, we can use the five triangles that have been dissected from the Heptagon, as follows: let the 5 triangles be A , B , C , D and E .

we know that the sum of interior angle of triangle is always 180° ;

Triangle A: The sum of the angles of triangle A is 180°.

Triangle B: The sum of the angles of triangle B is 180°.

Triangle C: The sum of the angles of triangle C is 180°.

Triangle D: The sum of the angles of triangle D is 180°.

Triangle E: The sum of the angles of triangle E is 180°.

So , the sum of all the angles in the five triangles is 180°×5 = 900°, which is also equal to the sum of the interior angles of the heptagon.

Therefore , we can conclude that the sum of the interior angles of any heptagon is always 900°.

The given question is incomplete , the complete question is

The Heptagon  has been dissected into five triangle with angle labeled , use the five triangle to prove that the sum of the interior angle of any heptagon is always 900° .

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1. 9 cans of white paint will she need to mix with 6 cans of blue

2. The rate of white to blue is 9 : 6.

3. The unit rate is 3/2.

Given:

Anne must add 3 cans of white paint to every 2 cans of blue paint.

So, the ratio of white to blue = 3:2

and, for 6 cans of blue paint the white paint needed

= 6 x 3/2

= 3x 3

= 9 cans

2. The rate of white to blue is 9 : 6.

3. The unit rate is 3/2.

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Value of the following expressions for a = 3 + 4j and b  = 3 - 4j , where      j = √−1 are as follow :

1. a + b = 6

2.  a × b = 25

Calculation of the value for the required expression by substituting the given values are:

1. a + b

= ( 3 + 4 j ) + ( 3 - 4j )

Take like terms together we get,

= ( 3 + 3 ) + (  4j - 4j )

= 6 + 0j

= 6

To get the value of second expression substitute the value of 'a' and 'b' we get :

2. a × b

= ( 3 + 4 j ) × ( 3 - 4j )

Apply the formula : ( x + y ) (x - y ) = x ² - y²

= ( 3 )² - ( 4j )²

= 9 - 16j²

Here j = √-1 ⇒ j² = -1

= 9 - 16 (-1 )

= 9 + 16

= 25

Therefore, the value of 1. a + b = 6 and 2. a × b = 25.

The above question is incomplete, the complete question is:

Given a = 3 + 4j and b  = 3 - 4j , where j = √−1 , find (use just pencil and paper, not software or calculators) Find the value of the following :

1. a + b    2. a × b

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The series is the converge series and the sum of the converges is 55/16

The term converge series in math is defined as a series is the sum of the terms of an infinite sequence of numbers

Here we have know that the series 20/8 + 80/64 − 320/512 + 1280/4096.

When we simplify this series the  we get,

=> 20/8 + 80/64 − 320/512 + 1280/4096

=> 5/2 + 5/4 - 5/8 + 5/16

As per the following rule If ∑an is conditionally convergent and r is any real number then there is a rearrangement of ∑an whose value will be r.

Based on these we have to simplify then we get, here with unlike denominators find the Least Common Denominator (LCD)

=> LCD = 16

Multiplying numerators and denominators to get the LCD in all fraction denominators

Then we get,

=> 40/16 + 20/16 - 10/16 + 5/16

=> 55/16

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Answer:

The solution is w ≤ 18

The weight of the draft horse is [tex]10^6[/tex] times the weight of the paper clip.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Weight of the paper clip = [tex]10^{-3}[/tex]

Weight of the draft horse = 10³

Now,

Weight of the draft horse.
= [tex]10^6[/tex] x Weight of the paper clip

= [tex]10^6[/tex] x [tex]10^{-3}[/tex]

= [tex]10^6[/tex]  x 1/10³

= 10³

Thus,

The weight of the draft horse is [tex]10^6[/tex] times the weight of the paper clip.

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Answer:

the answer is 6

In this particular case, the p-value is 3.2578x10⁻¹³, which is much smaller than the level of significance of 0.05.

A chi-square test of goodness of fit is a statistical test used to compare the observed data to a theoretical distribution.

In mathematical terms, the null hypothesis states that the observed data follows the theoretical distribution, and is represented by

H0= The observed data follows the theoretical distribution. The alternative hypothesis, which is the opposite of the null hypothesis, states that the observed data does not follow the theoretical distribution, and is represented by

HA= The observed data does not follow the theoretical distribution.

Based on the p-value of 3.2578x10⁻¹³ and the level of significance of 0.05, we can make the following statistical decision:

p-value < α (3.2578x10-13 < 0.05),

Therefore reject H0 and accept HA.

n other words, we can conclude that the observed data does not follow the theoretical distribution, and there is strong evidence to support this conclusion. The chi-square test of goodness of fit is a useful tool for making statistical decisions about the distribution of data.

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The value of tanФ = -1/4 in the III quadrant is -14⁰:

A trigonometric ratio is a ratio between two sides of a right triangle. The tangent ratio is just one of these ratios. In this tutorial, you'll see how to find the tangent of a particular angle in a right triangle.

Tangent = opposite /Adjacent

Tan ∅ = -1/4

Tan ∅= -0.25

Taking the tangent inverse to get ∅

∅=Tan⁻0.25

∅=-14

This is to say that in the III quadrant, Tan ∅=-1/4 is -14⁰

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Answer: It could be 7 or 10 or 113

Step-by-step explanation:  Just to make sure that you don't think it's only for 5. If I just get something, that something is equal to itself, which is just going to be true no matter what x you pick.

Answer:

8-15

8-23

and

15+23

15+8

Step-by-step explanation:

A circular pie cut in 8 pieces and sold at a fractional form 4(2/8) and 5(1/2), yields a total sale of 78 pieces of pie.

What is a circle?

A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle has rotational symmetry around the centre.

A pie is made in a circular shape.

Number of pieces in one pie = 8 pieces

Number of pieces of pie sold by first class of fifth grades = 4(2/8)

Number of pieces of pie sold by second class of fifth grades = 5(1/2)

The total number of pieces sold is = Pieces sold by first class + Pieces sold by second class

To find the pieces sold by first class multiply the fractional form by number of pieces -

4(2/8) × 8

34/8 × 8

34

The first class sold 34 pieces of pie.

To find the pieces sold by second class multiply the fractional form by number of pieces -

5(1/2) × 8

11/2 × 8

11 × 4

44

The second class sold 44 pieces of pie.

The total number of pies sold is -

The total number of pieces sold is = 34 + 44

The total number of pieces sold is = 78

Therefore, 78 pies were sold.

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The system of equations has an infinite number of solutions. The correct answer would be an option (D).

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

The system of equations is given in the question, as follows:

-5.9x - 3.7y = -2.1     .....(i)

5.9x + 3.7y =  2.1     .....(ii)

As we know that when a solution set of infinite points exists, a system of linear equations has an infinite number of solutions.

Here the system of equations has an infinite number of solutions because both equations are identical.

Hence, the correct answer would be an option (D).

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The fraction by which the income decreased in August is given as follows:

1/5.

The total income is given by a proportional relationship of the cost per item and the number of items sold, hence:

y = kx.

In which:

For August, the parameters are given as follows:

Hence the August expression is given as follows:

y = 4k/3 x 3x/5

y = 12kx/15

y = 4kx/5.

Hence the decrease is given as follows:

1 - 4/5 = 5/5 - 4/5 = 1/5.

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For the given Poison variables, the probability that X = 2 is 0.22.

Poisson variables are used to model count data, such as the number of customers arriving at a store in an hour, or the number of goals scored in a soccer match. The mean and variance of a Poisson variable are equal.

In this problem, you are given two independent Poisson variables, X and Y, where X has a mean of 3 and Y has a mean of 4. The sum of these two variables is 7. Your goal is to find the probability that X = 2.

Here we need to solve this problem, we can use the formula for the Poisson distribution. The probability of X = k is given by:

=>[tex]P(X = k) = \frac{(e^{-\mu}) * (\mu^k)}{k!}[/tex]

where μ is the mean of the Poisson variable, and e is the mathematical constant approximately equal to 2.718.

Now by substituting the values for X, we have:

=> [tex]P(X = 2) = \frac{(e^{-3}) * (3^2)}{2!}[/tex]

=> P(X = 2) =  (0.0498) * (9) / 2

=> 0.224

Therefore the correct option is D) 0.22.

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[tex] \frac{3}{1} = \frac{d}{9} \\ [/tex]

cross multiply...

[tex]d = 27[/tex]

Step-by-step explanation: 1 kilometer is equal to 0.621371 miles. To convert 13 kilometers to miles, you can multiply 13 by 0.621371.

13 kilometers * 0.621371 miles/kilometer = 8.042443 miles

So 13 kilometers is equal to 8.042443 miles.

Using simultaneous equations, the investor invested $7,560 in the 2% term, if the total investment averaged 3.75% for the year.

Simultaneous equations are a system of equations solved concurrently.

The solutions to a system of equations are found at the same time.

The total investment in the portfolio = $42,000

Investment in a 2% term for one year = a

Investment in 4.5% mortgage for one year = b

The average earnings from the investment = 3.75%

a + b = 42,000... Equation 1

(0.02a + 0.045b) ÷ 2 = 0.0375

0.01a + 0.0225b = 0.0375... Equation 2

Multiply Equation 1 by 0.0225:

0.0225a + 0.0225b = 945 ... Equation 3

Subtract Equation 2 from Equation 3:

0.0225a + 0.0225b = 945

-

0.01a + 0.0225b = 0.0375

0.0125a = 944.9625

a = 7,560

= $7,560

b = 42,000 - 7,560

b = 34,440

= $34,440

Thus, the investor invested $7,560 in the 2% term and $34,440 in the mortgage.

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Answer:

(12,7) and (16,7)

There is no slope as both points are on the same line. So the equation would be:

y=7

Step-by-step explanation:

In the simultaneous equations the value of m is 3 and the equation have many solution.

The term called equation in math is known as a condition on a variable (or variables) such that two expressions in the variable have equal value.

Here we have know that the general solution is calculated as,

=> x = (m-5)/(m-3)

and

=> y = 2/(m-3)

When we equate the equations then we get,

=> (m - 5) / (m -3) = 2/(m - 3)

=> m - 5 = 2

=> m = 3

So this dependent system has infinitely many solutions.

When m=3 the equations become look like 3x+3y=5 and 5x+5y=3.

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The true statement of the inequality is that g is greater than 9 and as a false statement, g is less than 9.

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

Given, An inequality of 5g > 45.

Dividing both sides by 5 we have (5/5)g > 45/5.

g > 9.

Now, The true statement is 'g' is greater than 9 and as a false statement 'g' is less than 9.

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Number of the 61 days in 2009 the Dow decreased by more than 1% is 0.514.

A probability distribution that is symmetric about the mean is the normal distribution, sometimes referred to as the Gaussian distribution. It demonstrates that data that are close to the mean occur more frequently than data that are far from the mean.

Given:

61 days in 2009 the Dow decreased by more than 1%.

In 2009

z = (1- (-0.198))/2.331

z = 0.514

In 2010

z = (1-0.078)/0.821

z = 1.123

Thus, number of the 61 days in 2009 the Dow decreased by more than 1% is 0.514.

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Answer:31.5

Step-by-step explanation: Since we are decreasing 90 by 65%, we want to find 35% of 90. To do this, simply multiply 90 by 0.35 to get 31.5.