What’s the answer anything helps

Answer: The correct answer would be 71.

step-by-step explanation:

9^2 - 10 =

Calculate the exponents: 9^2 : 81

Then subtract 81 by 10

81 - 10 = 71

[tex]2x^4 - 5x^3 + 6x^2 - 15x \\ \\ =x(2x^3 - 5x^2 + 6x-15) \\ \\ =x(x^2(2x-5)+3(2x-5)) \\ \\ =\boxed{x(2x-5)(x^2+3)}[/tex]

The ratio of the volume of the second cylinder to the volume of the first cylinder is 25.

To find the ratio of the volume of the second cylinder to the volume of the first cylinder, we need to calculate the volumes of both cylinders and then compare them.

The formula to calculate the volume of a right circular cylinder is given by V = πr^2h, where V represents the volume, r is the radius, and h is the height.

For the first cylinder:

Radius (r₁) = 3 centimeters

Height (h₁) = 5 centimeters

Volume of the first cylinder (V₁) = π * (3 cm)^2 * 5 cm

                             = 45π cm³

For the second cylinder:

Radius (r₂) = 15 centimeters

Height (h₂) = 5 centimeters

Volume of the second cylinder (V₂) = π * (15 cm)^2 * 5 cm

                              = 1125π cm³

To find the ratio of the volumes, we divide the volume of the second cylinder by the volume of the first cylinder:

Ratio = V₂ / V₁

     = (1125π cm³) / (45π cm³)

     = 25

Therefore, the ratio of the volume of the second cylinder to the volume of the first cylinder is 25.

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The x- and y-coordinates of point C, which partitions the directed line segment from A to B into the ratio 3:10 are (-2.6,5.2).

A line segment in geometry has two different points on it that define its boundaries. A line segment is sometimes referred to as a section of a line that links two places. The difference between a line and a line segment is that a line has no endpoints and can go on forever in either direction. A ray has only one endpoint and an endlessly long another end, as opposed to a line segment that has two ends.

If a point (x,y) divides the line segment joining the points A(x1,y1) and B (x2,y2) is in the ratio m:n, then

[tex]x=\frac{mx2+nx1}{m+n} \\y=\frac{my2+ny1}{m+n} \\[/tex]

Here,

m:n = 3:10

The endpoint of line AB are at: A(-4,8) and B(2,-4)

We substitute the given values to obtain:

x= 3*2+10*(-4)/3+10

x= -34/13

x= -2.6

and

y= 3*(-4)+10*(8)/3+10

y= 68/13

y= 5.2

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The coordinate on which the residual values are shown on a residual plot is: A) on the y-axis.

A residual value can be defined as a difference between the measured (given or observed) value from a residual plot (scatter plot) and the predicted value from a residual plot (scatter plot).

Mathematically, the residual value of a data set can be calculated by using this formula:

Residual value = given value - predicted value

In Mathematics, the independent variable (fitted values) are generally plotted on the x-axis of a residual plot (scatter plot) while the residual value is plotted on y-axis of a residual plot (scatter plot).

In conclusion, a line of best fit simply refers to a trend line on a residual plot (scatter plot).

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the initial statement here is

z

∝

x

y

2

to convert to an equation multiply by k the constant

of variation

⇒

z

=

k

x

y

2

to find k use the given condition

z

=

18

when

x

=

6

and

y

=

2

z

=

k

x

y

2

⇒

k

=

y

2

z

x

=

4

×

18

6

=

12

equation is

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

z

=

12

x

y

2

2

2

∣

∣

∣

−−−−−−−−−−−−−

when

x

=

8

and

y

=

9

z

=

12

×

8

81

=

32

27

Since the data in the table represent the height of an object over time, a model which best represents the data is: B. quadratic, because the height increases and then decreases.

In Mathematics, a quadratic equation can be defined as a mathematical expression (equation) that can be used to define and represent the relationship that exists between two or more variable on a graph.

Additionally, the standard form of a quadratic equation in mathematics is given by the following mathematical expression:

ax² + bx + c = 0

In Mathematics, the graph of all quadratic equations (functions) is either an upward or downward parabola, which is typically a u-shaped curve.

In conclusion, we can logically deduce that the graph of a quadratic equation (function) would always form a parabolic curve with the data value increasing on one end and decreasing on the other end as shown in the image attached below.

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Complete Question:

The data in the table represent the height of an object over time.

Which model best represents the data?

quadratic, because the height of the object increases or decreases with a multiplicative rate of change

quadratic, because the height increases and then decreases

exponential, because the height of the object increases or decreases with a multiplicative rate of change

exponential, because the height increases and then decreases

Answer:

-65

Step-by-step explanation:

Substitute: g (1) =_50-15

Calculate the sum or difference:

Answer=-65

(f . g)(x) is multiplication of f(x) and g(x). So,

(f. g)(x) = [tex]49x^{4}-70x^{3}+319x^{2} -420x+150[/tex] . Option (c) is correct answer.

A new function that is the product of the original two functions is created when two independent functions are multiplied together.

To multiply two functions together, perform these steps:

In given question we have two functions

f(x) = 7x³-5x²+42x-30

g(x) = 7x - 5

we need to find (f.g)(x) that is nothing but multiplication of f(x) and g(x).

So multiplying both the functions, we get

(f.g)(x) = f(x). g(x)

=( 7x³-5x²+42x-30)*(7x - 5)

=(49[tex]x^{4}[/tex]-35x³-35x³+25x²+294x²-210x-210x+150)

= [tex]49x^{4}-70x^{3}+319x^{2} -420x+150[/tex]

So, option (c) is correct answer.

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The equation of line r, in slope-intercept form, is: y = -1/9x - 9.

The equation that represents a line, in slope-intercept form, is expressed or written as:

y = mx + b, where the slope is m, and the y-intercept is b.

The slope of line q, with the equation y + 7 = 9(x + 4) is 9. The negative reciprocal of 9 is -1/9. This means line r that is perpendicular to line q and passes through (9, -10) has a slope, m = -1/9.

To write the equation of the line in slope-intercept form, first, substitute m = -1/9 and (a, b) = (9, -10) into y - b = m(x - a):

y - (-10) = -1/9(x - 9)

y + 10 = -1/9(x - 9)

Rewrite in slope-intercept form:

y + 10 = -1/9x + 1

y = -1/9x + 1 - 10

y = -1/9x - 9

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After 25 years, about 52g of the sample will be left and the sample never reaches half of its original amount

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

A(t)= 200е⁻⁰⁰⁵⁴⁺

Also from the question, we have

The variable t represents the number of years

This means that

t = 25, in this case

So, we have

A(25)= 200е⁻⁰⁰⁵⁴ ˣ ²⁵

Evaluate the above equation

A(25)= 51.848052128

Approximate

A(25) = 52

This means that the remaining sample is 52 grams

Here, we have

A(t) = 0.5 * 200

A(t) = 100

Substitute the known values in the above equation, so, we have the following representation

200е⁻⁰⁰⁵⁴⁺ = 100

Divide both sides by 100

е⁻⁰⁰⁵⁴⁺ = 0.5

Take the natural logarithm of both sides

0.054t = -0.69314718056

So, we have

t = -0.69314718056/0.054

Evaluate

t = -13

Time cannot be negative

This means that it never reaches half of its original amount

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The values of a and b for the exponential function are given as follows:

The standard definition of an exponential is given as follows:

y = ab^x.

In which the meaning of the parameters a and b is given as follows:

The function passes through the points (0,10000), hence the value of the parameter a is given as follows:

a = 10000.

The function also passes through the point (3,3430), hence the value of the parameter b is obtained as follows:

10000b³ = 3430

b = cubic root of (3430/10000)

b = (3430/10000)^1/3

b = 0.1143.

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There will be 66 wolves there will be in 5 years according to given exponential function.

What is exponential equation?

The exponential function may be a function denoted by f(x)=\exp or e^. Unless otherwise fixed, the term usually refers to the positive-valued operate of a true variable

Main body:

given =  y=y₀ e^{0.027 t}

here , y₀ = 58

t = 5 years

y = 58 e^(0.027 * 5)

y = 58 e^(0.135)

y = 58 * 1.144537

y = 66.383133

y = 66

Hence there will be 66 wolves there will be in 5 years.

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Answer:

b!vch I am up b!vch I am up b!vch I am up

Using the distance formula, [tex]AP=\sqrt{(-1-2)^2+(-1-7)^2} \approx \boxed{8.54}[/tex]

The probability of not pulling hip hop CDs is equal to 3/5. The correct option is (A).

Probability is the branch of Mathematics that deals with the measurement of the chance of occurrence of a random event.

The probability of any event always lies in the close interval of 0 and 1 [0,1].

The zero value of probability indicates that the event will not happen while its value equal to one indicate that it will happen.

Given that,

The number of country, rock, hip hop, and jazz CDs are 10, 5, 12 and 3 respectively.

Then, the total number of CDs are 10 + 5 + 12 + 3 = 30

Now, the probability of not selecting hip hop is equal to the probability of selecting the remaining types of CDs which is given as,

P(Not hip hop CDs) = (10 + 5 + 3)/30    

                                 = 18/30

                                 = 3/5

Hence, the probability that the first CD that Kyle pulls from the box will not be hip hop is 3/5.

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Answer:

168015

Step-by-step explanation:

b(c) = 2c³5c² - 6c - 13

b(7)=2(7)³5(7)²-6(7)-13

b(7)=2(343)5(7)²-6(7)-13

b(7)=(686) 5(49)-6(7)-13

b(7)=(686) (245)-6(7)-13

b(7)=(686) (245) -42-13

b(7)=168070-42-13

b(7)=168028-13

b(7)=168015

(Usually this is how you would solve it but because there was no sign between the 2c^35c^2 I got sort of confused so I just multiplied, if wrong I'm sorry..)

[tex]b(-7)=-168041[/tex].

[tex]b(c)=2c^{3} 5c^{2} -6c-13[/tex]

[tex]b(-7)=2(-7)^{3} 5(-7)^{2} -6(-7)-13[/tex]

[tex]b(-7)=2(-343) 5(49) -(-42)-13\\ \\b(-7)=-168070 +42-13\\ \\b(-7)=-168041[/tex]

(a) 794g of the initial sample will be left in the sample after 25 years. (b) Time taken to decay to half of its original amount is 3.39 years.

Isotopes(200g) are atoms that have the same number of protons in their nucleus, but a different number of neutrons. This means that they have the same atomic number, but a different atomic mass. Because of this, isotopes have different physical and chemical properties. Isotopes can be stable, meaning that they do not undergo radioactive decay, or they can be unstable, meaning that they will undergo radioactive decay over time.

(a) Substituting 25 for t in the expression, we get:

[tex]A(25) = 200e^{0.0541 \times 25}[/tex]

         [tex]= 200e^{1.3525}[/tex]

Thus, after 25 years, there will be

[tex]200e^{1.3525} = 2003.97[/tex]

794 g of the initial sample left in the sample.

(b) We want to find t such that

[tex]A(t) = 200e^{0.0541}[/tex]                                          

       = 100.

Solving for t, we get:

[tex]= 200e^{0.0541} \times t=100[/tex]

Dividing both sides by 200 and applying the natural logarithm to both sides, we get:

0.0541 × t = ln(0.5)

Therefore,

[tex]t = \frac{ln(0.5)}{0.0541}[/tex]

  = 3.39 years.

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A polynomial function of least degree with rational coefficients so that P(x) = 0 has the given roots is P(x)=x²-5x-14

A function is said to as polynomial when a variable in an equation, such as a quadratic equation or cubic equation, etc., has only positive integer exponents or non-negative integer powers. One polynomial with an exponent of 1 is 2x+5, for instance. One that has more than two algebraic terms is referred to as a polynomial expression. Polynomial is a monomial or binomial that is repeatedly added, as the name suggests.

A mathematical expression containing one or more algebraic terms, where each algebraic term is made up of a constant multiplied by one or more variables raised to a nonnegative integral power.

x= -2, x=7

Given,

P(x) = 0

This polynomial function has the roots,

x= -2, x=7

So,

(x+2)(x-7)

We have to multiply both of them we get,

P(x)=(x+2)(x-7)

0=x²-5x-14

x²-5x-14=0

Therefore, P(x)=x²-5x-14 is the polynomial function.

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Hello,

I hope you and your family are doing well!

The answer is y = 5 (See below for the explanation).

To find a linear equation representing a line passing through two points, you can use the slope-intercept form of the equation, which is written as y = mx + b, where m is the slope of the line and b is the y-intercept (the point at which the line crosses the y-axis).

To find the slope of the line, you can use the formula:

m = (y2 - y1) / (x2 - x1)

Substituting the coordinates of the two given points, we get:

m = (5 - 5) / (-8 - 3) = 0 / -11 = 0

Since the slope of the line is 0, the line is horizontal and passes through both points at the same y-value (5). The x-intercept (the point at which the line crosses the x-axis) is not relevant in this case.

Therefore, the linear equation representing this line is y = 5.

Happy Holiday & New Year!

Please give this answer 5 stars and brainliest if you find it helpful.

Best,

Answer:

y=5

Step-by-step explanation:

y=mx+b

if you put your two point on a graft, they are on same line for the y-intersept. So if that is true then your answer has to y=5

Answer: The coefficient of the term with the power of 3 is (D. 1)

Step-by-step explanation:

The power of 3 is x^3. When there's no number besides x, we can think of it as an imaginary 1. So, therefore, it's D-1.

Answer:

35 cm²

Step-by-step explanation:

Base of triangle = 10 cm

Height of triangle = 7 cm

Area of triangle = 1/2 x (base x height)

= 1/2 x (10 x 7)

= 1/2 x 70

= 35

So, area is 35 cm²

Answer:Answer to Solved In how many ways can the digits in the number 7, ... Question: In how many ways can the digits in the number 7, 600,000 be arranged?

1 answer

·

Top answer:

Concept used : The number of permutations (arrang...

Step-by-step explanation:

the height of the flag pole should be 108 inches.

Step-by-step explanation:

44r + 43g = 217

45r + 18g = 144

r = a pound of raspeberries

g = a pound of grapes

Length is 4 ft and  width is is 3ft.

What is width ?

The "size" of a body is measured in geometry by its mean width; for more information on the various body measures, see Hadwiger's theorem. One must take into account -dimensional hyperplanes parallel to a specific direction in where is the n-sphere.

[tex]\begin{aligned}& w^2+(w+1)^2=5^2 \\& \frac{w^2+w^2+2 w+1}{}=25 \\& 2 w^2+2 w-21\end{aligned}[/tex]

[tex]\begin{aligned}& 2 w^2+2 w-24=0 \\& w^2+w-12=0\end{aligned}[/tex]

[tex]\begin{gathered}(w-3)(w+4)=0 \\w=3,-4\end{gathered}[/tex]

The width must be three because we can't have negative widths. Since the length is four feet, we have the dimensions of our poster.

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Answer: 12.5%

Explain:

There are two main ways to express a fraction as a percentage:

-Divide 100 by the numerator, and then multiply both numerator and denominator by the answer.

-Convert the fraction to a decimal first, then multiply the answer by 100.

The correct answer is therefore negative 1 divided by 7 raised to the sixth power, which is the same as 1/7^2. The other choices do not match this expression.

What is power?

The power (or exponent) of a number says how many times to use the number in multiplication. It is written as a small number to the right and above the base number.

The expression 7 raised to the negative second power times 7 raised to the third power is equivalent to 7 raised to the (negative second + third) power, which is 7 raised to the first power. This is equal to 7.

The quantity 7 raised to the first power all raised to the negative third power is equal to 7 raised to the (first + negative third) power, which is 7 raised to the negative second power.

Therefore, the expression that is equivalent to the quantity 7 raised to the negative second power times 7 raised to the third power all raised to the negative third power is 7 raised to the negative second power, which is 1/7^2 = 1/49.

Hence, The correct answer is therefore negative 1 divided by 7 raised to the sixth power, which is the same as 1/7^2. The other choices do not match this expression.

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Answer:

7/8

Step-by-step explanation:

First, we need to get 7/8 and 5/6 to the same denominator which is 48. 7/8 becomes 42/48 whilst 5/6 becomes 40/48

we can simply put them both with the same denominator and check, the larger numerator will be it.

so hmmm let's multiply one by the denominator of the other

[tex]\cfrac{7}{8}\hspace{5em}\cfrac{5}{6} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{7}{8}\cdot \cfrac{6}{6}\implies \cfrac{42}{48}\hspace{5em}\cfrac{5}{6}\cdot \cfrac{8}{8}\implies \cfrac{40}{48}\hspace{9em}\boxed{\cfrac{42}{48} ~~ {\Large \begin{array}{llll} > \end{array}}~~ \cfrac{40}{48}}[/tex]

The Mann-Whitney U test is not appropriate for a comparison of two means in a causal comparative study.

To determine if two samples are likely to come from the same population, researchers employ the Mann Whitney U test, also known as the Mann Whitney Wilcoxon Test or the Wilcoxon Rank Sum Test (i.e., that the two populations have the same shape). When a continuous level variable is measured across all observations in two groups and we wish to test if the distribution of this variable differs between the two groups but we are unable to assume normality in both groups, we use the Mann-Whitney test.

Here,

Mann-Whitney test In a causal comparative investigation, comparing two means is not acceptable using the U test.

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