share 27 in the ratio 7:2

The number of the books owed by Tara which she has not read would be = 152 books.

Percentage is defined as the part of the value that can be expressed as per 100 of the whole given value. This can be represented with a symbol such as %..

The number of books owned by Tara = 160 books

The percentage of books read by Tara = 95%

Therefore, 95% of her books = 95/100 × 160

= 15200/100

= 152 books.

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840  ways can we form a subcommittee with 3 republicans and 2 democrats

Given that

A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant (unlike permutations). Three fruits, such as an apple, an orange, and a pear, for instance, can be combined into three different pairs: an apple and a pear, an apple and an orange, or a pear and an orange. A k-combination of a set S is officially defined as a subset of S's k unique elements. So, if and only if each combination contains the same elements, two combinations are said to be identical. (It is not important how each set's members are arranged.) If there are n elements in the set, then C kn is the number of k-combinations.

a senate committee has 8 republicans and 6 democrats.

now, we need to find how many ways can we form a subcommittee with 3 republicans and 2 democrats

= 8[tex]C_{3}[/tex] × 6[tex]C_{2}[/tex]

=[tex]\frac{8!}{5!3!}[/tex] × [tex]\frac{6!}{4!2!}[/tex]

=56 × 15

=840

840  ways can we form a subcommittee with 3 republicans and 2 democrats

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Therefore , the solution of GCD problem comes out to be the greatest common factor of 252 and 60 is 223 = 12.

The number that divides two or more numbers most precisely by itself is said to be the largest common denominator (GCD) of those numbers. It is also known as the highest common denominator (HCF). Since both 15 and 10 can be divided by 5, for instance, the highest common factor of these two numbers is 5.

Here,

The highest common factor (hcf), greatest common factor, and the greatest common divisor (gcd) are other names for it (gcf).

The highest integer which divides both numbers is known as the largest common series of 2 numbers.

We must choose the number that divides 252 and 60 most equally.

252's prime factorization is as follows:

252 = 2×2×3×3×7

the prime factors that make up 60 are.

60 = 2×2×3×5

These common elements are: 2 2 3

Therefore, the greatest common factor of 252 and 60 is 223 = 12.

Therefore , the solution of GCD problem comes out to be the greatest common factor of 252 and 60 is 223 = 12.

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Answer:C

Step-by-step explanation:

x is [tex]\sqrt{7} \\[/tex]=2.645

which means 2.645²=7

Answer:

5/12

Step-by-step explanation:

5/12

Answer:

4am, it's 4 am.

A mathematical expression with coefficients and variables is called a polynomial. The polynomial 3 root is not one because of the non-integer, irrational exponent (the root of 3).

A mathematical expression with coefficients and variables is called a polynomial. A nxn + a (n-1)x(n-1) +... + a 2x2 + a 1x + a 0 can be used to represent the formula, where n is an integer and an I are constants. The polynomial 3 root is not one because of the non-integer, irrational exponent (the root of 3). The polynomial 3(1/2) cannot be one since the exponent (1/2) is not an integer. As a result, 3 root cannot be expressed as a polynomial.

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Answer:

3x^2−2

Step-by-step explanation:

Given f(x)=3x−5 and g(x)=x^2+1

∴f(g(x))=f(x^2+1)

=3(x^2+1)−5

=3x^2−2

Answer:

2:5

I am not sure if it is correct answer

No, the absolute value of equations does not always have two answers

Understanding the absolute value is crucial for mathematicians. We place vertical bars on either side of a number to show its absolute value. On a number line, absolute value refers to distance from zero. A negative number's absolute value is a positive number. A positive number has the same absolute value as another positive number.

There are not always two solutions to an equation's absolute value. An equation involving fundamental values may have one or more solutions, depending on the equation's overall structure and the values that are being entered. For example, whereas the equation |x| = 2x has no solutions, but the equation |x| = 1 has two solutions (x = 1 and x = -1).

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The equation and the accompanying justification that describes a line that is parallel to EF is: C. Y = -1/3x + 5 1/3 the slopes are equal.

If two lines are said to be parallel to each other, their equations that is expressed as y = mx + b, will have the same slope value of m. Y = mx + b is the slope-intercept form of any equation that represents a line.

Given that the equation y = -1/3x + 4 represents the line EF, its slope is -1/3. This means the slope of any line that is parallel to y = -1/3x + 4 will be the same as -1/3.

Therefore, the correct justification is: C. Y = -1/3x + 5 1/3 the slopes are equal.

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The profit of the insurance company is -20x, where x is the monthly premium.

Algebra is a branch of mathematics that deals with the study of symbols and the rules for manipulating them. It is used to describe and analyze the relationship between numbers, variables, and operations. Algebra is used to solve equations and simplify expressions, and it is useful in a wide range of applications such as engineering, economics, and science. Algebra also helps us understand and explore abstract concepts such as equations, functions, and graphs. Algebraic thinking is a valuable skill that can help us to make sense of the world around us.

Let x = monthly premium

The insurance company's profit = (500,000 - 20x) - 500,000 = -20x

Therefore, the profit of the insurance company is -20x, where x is the monthly premium.

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[tex] \frac{5a}{r} \: - 2 = y[/tex]

Step-by-step explanation:

A = r(y +2) /5

A×5 = r(y+2)

(5A)/r = y+2

(5A)/r - 2 = y

•: y = (5A)/r - 2

(only applicable when

[tex]a = \frac{ry + 2r}{5} [/tex]

expand)

Zeros to the right of a number are significant as long as there is a decimal point present are described the the significance of zeros in a reported number.

Significant Zeros : If a zero is found between significant digits, it is valid. If the number is decimal, zeros can be used as placeholders (meaningless) to the left of significant digits. For example, if the mass is 32 g, there are 2 significant digits. Expressed in kilograms, the mass of 0.032 kg should have two significant digits. The zeros to the right of the decimal point that are not just placeholders are significant. These significant zeros are to the right of any significant non-zero digits. The zeros to the left of the 20.00 cm decimal point are also significant, as they are among the significant digits. If a decimal point is present, all digits from the first non-zero digit (to the right) are significant. If there is no decimal point, trailing zeros are considered insignificant unless scientific notation makes the quantity clear.

Start on the left and move right until you reach the first non-zero number..

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Complete question:

Which option(s) correctly describes the procedure used to determine the number of significant digits in a reported quantity? select all that apply.

a) Trailing zeros in whole number, 600 are asumed significant

b) Zeros to left of first non-zero number is not significant

c) zeros to the right of a number are significant as long as there is a decimal point present.

d)zeros between non-zero numbes are not significant.

Answer:

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

Step-by-step explanation:

[tex]\frac{4}{1}[/tex] x [tex]\frac{7}{3}[/tex] = [tex]\frac{28}{3}[/tex] = 9 [tex]\frac{1}{3}[/tex]

The answer to the simplification is 56.

The order of precedence is the hierarchical order in which calculations are conducted. The simplest example of this is the way you always multiply before you add numbers.

In mathematics, you have BODMAS

B = Bracket

O = of

D = Division

M = Multiplication

A = Addition

S = Subtraction

From the equation;

7 x (-7 +15)

Removing the bracket

7 x (8)

Multiplying

56

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Answer:

It can't be (-2,8)  as u can't join (2,1) and (8,1) with (-2,8) without it ruining the rectangle.

Answer:

20/9 laps

Step-by-step explanation:

convert everything to minutes to make things a little easier

3/10 of an hour = 1/10 of an hour (6 minutes) * 3 = 18 minutes

2/3 of an hour = 1/3 of an hour (20 minutes) * 2 = 40 minutes

18 minutes = 1 lap

40 minutes = ? laps

multiply the first equation by 40/18 to get 40 minutes on the left sides

40 minutes = 40/18 laps = 20/9 laps

Answer: 22

Step-by-step explanation:

f(2)=3*2^2+5*2

     =3*4+10

     =12+10

     =22

3.31 it will take her to complete the triathlon.

To find this, we can apply the equation distance = rate x time.

We are aware of the length and pace of each triathlon leg. Let's name them, respectively, d and r. We must locate the time, which we shall designate as t.

d = r x t    or

t = d/r

The distance is 0.93, or 93/100, and the rate is 1.2, or 12/10 when swimming. As a result of our formula, we have:

12/10 divided by 93/100 yields the same result as

93/100 * 10/12

time to swim = 93/120 = 31/40

We have a distance of 24.8 miles, or 248/10, and a speed of 18.8 miles, or 188/10, for biking. Using the same formula, we obtain:

248/10 divided by 188/10 or

248/10 * 10/188 = 248/188 = 62/47 = time to bike

Finally, for the run, the distance is 6.2 = 62/10 and the rate is 5.1 or 51/10. Plugging this into the formula gives:

62/10 divided by 51/10 or

62/10 * 10/51 = 62/51 = time to run

= 31/40 + 62/47 + 62/51

=3.31

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8 laps time 1/4 mile is 2 miles .

Average speed in miles per hour:

2 mi / 12.5 min * 60 min/hour = 9.6 mph

Average velocity is zero, since velocity is directional and the person jogged around a track. [I mention that in case this was set up as a trick question.]

But if we're really looking for average speed in m/s we can easily convert:

A mile is about 1.6 km, so it's about 1600 m.

(2 mi * 1600 m/mi) / (12.5 min * 60 s/min) = 1800 / 750 = 2.4 m/s

The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.

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The power of two by which the height was divided is given as follows:

Tenth power of 2.

The power of two by which the height was divided is obtained applying the proportions in the context of this problem.

The equation that relates the heights and the scale factor is given as follows:

New height = Old height / Scale factor.

The parameters for this problem are given as follows:

Then the scale factor is obtained as follows:

Scale factor = 324/0.3

Scale factor = 1080.

The tenth power of 10 is given as follows:

2^10 = 1024.

Which is close to 1080, and hence the height was divided by the tenth power of 2.

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Check the picture below.

so, let's notice the angle made by the hand from 2pm to 4:45pm, well, it goes around twice, 2 revolutiions, then it goes 270° more after that, and we know the "radius" is 10.5"

[tex]\textit{arc's length}\\\\ s = \cfrac{\theta \pi r}{180} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ \theta =\stackrel{360+360+270}{990~\hfill }\\ r=10.5 \end{cases}\implies s=\cfrac{(990)\pi (10.5)}{180} \\\\\\ s=\cfrac{231\pi }{4}\implies s\approx 181.43~in[/tex]

If you have two options, A and B, exclusive means only one option is required (A or B) while inclusive means both options are available (A and B).

To calculate the answer to this question, we need to consider what the words “exclusive” and “inclusive” mean. Exclusive means that one option is required and the other is not, while inclusive means that both options are available. In the case of the question a, the answer is exclusive because you must take either chemistry or physics to graduate. In the case of question b, the answer is inclusive because you can have either a complimentary coffee or tea.

To illustrate the difference between exclusive and inclusive with a formula, we can use the following:

Exclusive: A + B = A

Inclusive: A + B = A + B

This formula demonstrates that if you have two options, A and B, exclusive means only one option is required (A or B) while inclusive means both options are available (A and B).

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The total area of the two non-shaded crescent-shaped regions =25π ^2

The length of hypotenuse = 10

(6^2 + 8^2 = 10^2 )

Therefore, the radius of the large semicircle equals 5.            
area of large semi-circle = 25π

As a result, the total area of the two non-shaded regions is 25π^ 2

A semicircle is formed when a circle is divided in half along its diameter

The circumference of a semicircle is curved, and the diameter is straight.
A semicircle has a right angle of 90.


For example PR is a diameter and (angle PRQ=25.  The size of (angle QPR) is  (angle PQR=90circ) because it is the angle in a semicircle. The sum of  triangle's three angles is 180.    
   
     
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the expression StartRoot StartFraction 25 x Superscript 9 Baseline y Superscript 3 Baseline Over 64 x Superscript 6 Baseline y Superscript 11 Baseline EndFraction EndRoot is equivalent to 25x9y3 / 64x6y11.

StartRoot StartFraction 25 x Superscript 9 Baseline y Superscript 3 Baseline Over 64 x Superscript 6 Baseline y Superscript 11 Baseline EndFraction EndRoot

= 25x9y3 / 64x6y11

StartRoot is the beginning of the root expression and StartFraction is the beginning of the fraction within the root expression. 25x9y3 is the numerator of the fraction and 64x6y11 is the denominator of the fraction. Superscript is used to raise the numbers to the power indicated. Baseline is the number which the Superscript is raised to. EndFraction indicates the end of the fraction and EndRoot indicates the end of the root expression.

Therefore, the expression StartRoot StartFraction 25 x Superscript 9 Baseline y Superscript 3 Baseline Over 64 x Superscript 6 Baseline y Superscript 11 Baseline EndFraction EndRoot is equivalent to 25x9y3 / 64x6y11.

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The explanation of each of the term are defined below.

The order of each reactant is known as the reaction orders in a rate law describe the mathematical dependence of the rate on reactant concentrations.

The term rate law expression in math is defined as the expression in which reaction rate is given in terms of molar concentration of reactants with each term raised to some power in which may or may not be same as the stoichiometric coefficient of the reacting species in a balanced chemical equation.

The term overall order of the reaction is known as  the sum of orders for each reactant.

Finally value of the rate constant means the rate constant is temperature dependent.

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Answer:

  see attached for a graph

  a. BA≅BC (the compass told me so)

  c. AD≅CD

Step-by-step explanation:

You want a graph of ∆ABC, with A(4, 7), B(0, 0), and C(8, 1). You want to identify the congruent sides, construct an angle bisector, and comment on how it divides the opposite side.

The graph of the points, and the construction of the angle bisector are shown in the attachment.

Since you have your compass available for construction, you can use set it to the measure of one side and compare that to the other two sides. It does not take long to identify AB ≅ BC. (A compass setting shows they are the same length.)

As you know, an angle bisector is constructed by first identifying two points on the sides of the angle that are the same distance from the vertex of the angle. Then two intersecting arcs are drawn with the same radius using those points as their centers. The vertex and the intersection of the arcs defines the ray that is the angle bisector. This is shown in the attachment.

You can count grid squares (or use the compass) to determine that AD and CD are the same length: D is the midpoint of AC.

This reinforces your knowledge that the angle bisector of the a.pex angle of an isosceles triangle is also an altitude and a median.

both the equation both equations are similar and they may or may not be equivalent.

What is an Equations?

Equations are mathematical statements with two algebraic expressions on either side of an equals (=) sign. It illustrates the equality between the expressions written on the left and right sides. To determine the value of a variable representing an unknown quantity, equations can be solved. A statement is not an equation if there is no "equal to" symbol in it. It will be regarded as an expression.

Given equation (2d) / (d/r1) + (d/r2)

and (r1t1 + r2t2) / (t1 +t2)

Taking LCM: 2d/(dr2) (dr1) / r1r2

The product 2r1r2/ r1+r2

So both the equation equations are similar and they may or may not be equivalent.

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Answer:

Step-by-step explanation:

Answer:

5x = y

10x= 5y

20x= 15y

50x= 45y