help me with all and i will give brainiest

The expression is simplified to n - 16/ 4

Algebraic expressions are expressions comprising of terms, variables, factors, constants and coefficients.

They are also made up of mathematical operations such as addition, subtraction, multiplication, division, bracket, etc.

Given the expression;

− 3/2(1/2 n+2n−3)+4n

Solve the variables in the bracket, we have;

- 3/ 2 {   n + 4n - 6 / 2} + 4n

-3/2 { 5n - 6/ 2 } + 4n

expand the bracket

- 15n - 18/ 4 + 4n

Fin the LCM

-15n - 16 + 16n  /4

n - 16/ 4

Thus, the expression is simplified to n - 16/ 4

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The limit definition of a derivative is a mathematical method used to calculate the instant rate of change of a characteristic at a particular point. it is based at the idea of the limit of a function because the input techniques a certain cost.

The limit definition of a derivative is expressed as follows:

\(f'(x) = lim (h → 0) [f(x + h) - f(x)] /h\)

Wherein f'(x) represents the derivative of the function f(x) at a particular factor x. The expression \(( f(x + h) - f(x)) / h\) represents the common price of alternate of the characteristic over a small interval of size h, focused at x. The limit of this expression as h approaches 0 represents the instant fee of change of the characteristic at x, or the slope of the tangent line to the function at that factor.

The limit definition of a derivative is a fundamental concept in calculus and is used to calculate the slopes of tangent lines, to find maximum and minimum factors, and to clear up optimization issues in a huge variety of packages.

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Answer:

jane is 1383 years old!!

Step-by-step explanation:

Answer:

CCCC

Step-by-step explanation:

Rounding the result to the nearest whole number, we find that approximately 24,108 bacteria are expected to be present after 7 hours.

To solve this problem, we can use the exponential growth formula for population growth:

N(t) = N₀ * e^(kt),

where:

N(t) is the population at time t,

N₀ is the initial population,

e is the base of the natural logarithm (approximately 2.71828),

k is the growth rate constant,

t is the time in hours.

We are given the initial population N₀ = 70 and the population after 4 hours N(4) = 360.

Using this information, we can solve for the growth rate constant k:

N(4) = 70 * e^(4k) = 360

Dividing both sides of the equation by 70:

e^(4k) = 360/70

Taking the natural logarithm (ln) of both sides:

4k = ln(360/70)

Simplifying:

k = ln(360/70) / 4

Now that we have the value of k, we can find the population N(7) after 7 hours:

N(7) = 70 * e^(7k)

Substituting the value of k:

N(7) = 70 * e^(7 * ln(360/70) / 4)

Using a calculator, we can evaluate this expression:

N(7) ≈ 70 * e^(7 * ln(360/70) / 4) ≈ 70 * 345.828 ≈ 24107.96

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We can write the value of 6 hundred thousandths by using multiplication and the required value is 6,00,000.

This problem can be done by using multiplication. Like 6 hundred can be multiplied with the thousand then the value gets. We can write the value of 6 hundred thousandths by using multiplication and the required value is 6lakhs.

In mathematics, the number has ones place, tens place and hundreds place, thousands place. So, by that we can conclude the required value.

The value can be get by multiplying the given terms

Given 600 and multiplied by thousandths

600 * 1000 = 6,00,000

So, the required value is 6 lakhs or 6,00,000.

Therefore, this problem can be done by using multiplication. Like 6 hundred can be multiplied with the thousand then the value gets. We can write the value of 6 hundred thousandths by using multiplication and the required value is 6lakhs.

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Some important concept before solving answer :-

\( \\ \)

When ever there is three dimensional figure remember, where one figure is related to other then there's always relation with volume.

So it may get pretty difficult to understand therefore I am dividing into small parts for better understanding.

\( \\ \)

\( \pmb{ \bf \dag\cal{Part \ One:}}\)

As we know there will be relation of volume, so let's find volume of the cone first.

\( \\ \)

Given :-

⭑Height = 10 cm

⭑radius = 3cm

\( \\ \)

To find :

⭑volume of cone

\( \\ \)

Let represent :-

⭑Height as : h

⭑radius as : r

⭑volume of cone as : v

\( \\ \\ \)

Formula to find volume of cone :-

\( \\\)

\( \bigstar\boxed{ \rm v = \pi {r}^{2} \times \frac{h}{3} }\)

\( \\ \)

So let's find v!

\( \\ \)

\( \dashrightarrow\sf v = \pi {r}^{2} \times \dfrac{h}{3} \)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22}{7} \times {3}^{2} \times \dfrac{10}{3} \)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22}{7} \times {3} \times 3\times \dfrac{10}{3} \)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22}{7} \times {\cancel3} \times 3\times \dfrac{10}{\cancel3} \)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22}{7}\times 3\times \dfrac{10}{1} \)

\( \\ \)

\( \dashrightarrow\sf v = \dfrac{22}{7}\times 3\times10\)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22\times 3\times10}{7}\)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{22\times 30}{7}\)

\( \\ \\ \)

\( \dashrightarrow\sf v = \dfrac{660}{7}\)

\( \\ \\ \)

\( \dashrightarrow\bf v =94.3 {cm}^{3} \)

\( \\ \\ \)

\( \pmb{ \bf \dag\cal{Part \: \: Two:}}\)

So remember that cone filled with water is equal to volume of cone.

volume of water filled in cone = volume of water in cuboid.

So you probably thinking that above sentence is wrong , cause they haven't told volumes of cuboid and cone are equal, but we have to find depth of water filled not depth of cuboid.

\( \\ \\ \)

Given :-

⭑Volume of cuboid = 94.3 cm³

⭑Length of cuboid = 5cm

⭑Width of cuboid = 3cm

\( \\ \)

To find :-

⭑Depth of water in cuboid

\( \\ \)

Let represent:-

⭑Volume of cuboid as : V'

⭑Length of cuboid as : L

⭑Width of cuboid as : W

⭑Depth of water in cuboid as : D

\( \\ \\ \)

Formula to find volume of cuboid :-

\( \\ \\ \)

\( \bigstar\boxed{ \rm V'= W \times L \times D }\)

By using this formula we can find depth of cuboid.

\( \\ \\ \)

\( : \implies \sf V'= W \times L \times D \)

\( \\ \\ \)

\( : \implies \sf 94.3= D \times 3 \times 5\)

\( \\ \\ \)

\( : \implies \sf \dfrac{943}{10\times 3 \times 5} = D \)

\( \\ \\ \)

\( : \implies \sf \dfrac{943}{10 \times 15} = D \)

\( \\ \\ \)

\( : \implies \sf \dfrac{943}{150} = D \)

\( \\ \\ \)

\( : \implies \sf D = \dfrac{943}{150} \)

\( \\ \\ \)

\( : \implies \bf D = 6.3cm\)

\( \\ \\ \)

Required Answer:-

Depth = 6.3 cm

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Step-by-step explanation:

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You did it please don't delete

Question 17

The slope is 1 and the y-intercept is 1.

Question 18

The slope is -3/5 and the y-intercept is 1.

Answer:

17: A

18: B

Step-by-step explanation:

17: this is because there are only 2 positive graphs and only A has the y intercept of 1

18: there are only 2 negative graphs and only B has an intercept of 1

Answer:

Please refer to the attachment

Hope it helps

Please mark me as the brainliest

Thank you

Answer:

8 cubic inches

Step-by-step explanation:

The problem mentions that the box has a volume, which is a measure of the amount of space that the box occupies. Volume is typically measured in cubic units, such as cubic inches, cubic feet, or cubic meters.

Lily's error is in the first step, (2+i)^2 ≠ 4 + i^2.

(2+i)^2 = (2+i)(2+i) and you need to FOIL.

(2+i)^2 = (2+i)(2+i)

           = 4 + 2i + 2i + i^2

           = 4 + 4i + (-1)

           = 3 + 4i

Bonus:

If you want to multipy (2+i) by (a+bi) and not end up with a complex number, you'd first FOIL

     (2+i)(a+bi) = 2a + 2bi + ai + bi^2

We know i^2 = -1, so this becomes

                      = 2a + 2bi + ai + b(-1)

                      = 2a + 2bi + ai - b

                      = 2a - b + 2bi + ai

Now, for this not to be complex, we need the imaginary pieces to cancel each other out.  In other words 2bi+ai=0.  For that to happen, 2b + a = 0, or

    2b = -a  or a = -2b

So it would seem that if we pick any b-value and make a = -2b, then we'll end up with a non-complex number.

Let's try b=5, making a = -10

     (2+i)(-10+5i) = -20 + 10i - 10i + 5i^2

The 10i's cancel and 5i^2 = -5, so we're left just with -25.

Answer:

- HOW TO FIND VOLUME OF PRISM -

1st step - Write the formula for finding the volume of a regular pentagonal prism. The formula is V = [1/2 x 5 x side x apothem] x height of the prism.

2nd step - Find the area of the pentagonal base face. Let's say the length of a side is 6 cm and the length of the apothem is 7 cm.

3rd step - Find the height. Let's say the height of the shape is 10 cm.

4th step - Multiply the area of the pentagonal base face times the height. ...

and last step - State your answer in cubic units.

Step-by-step explanation:

:):):)

In a case whereby the slide part of a water slide is 89 feet long and makes a 42 angle of depression with the ground, the lenght or how high up in the air  is 73.6 feet

We know that the length of the slide AB is 89 feet, and the angle of depression from A to B is 42 degrees. We want to find the height h of point A above the ground.

The tangent of an angle is defined as the ratio of the opposite side to the adjacent side. In this case, the opposite side is h (the height we're looking for), and the adjacent side is AB (the length of the slide). So we can write base on trigonometery as ;

tan(42) = h / 89

h = 89 * tan(42)

h ≈ 73.6 feet

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The answer is attached. I hope this helps answer your question!

Answer:

10

Step-by-step explanation:

data=11,7,21,14,9,x

mean=sum of data/no of data

12=11+7+21+14+9+x/6

12*6=62+x

72-62=x

10=x

therefore sixth number is 10.

Answer:

27976000

Step-by-step explanation:

1.04 x 10^5=104000, and  2.808 x 10^7=28080000

28080000-104000=27976000

that's what I think, did this help

I would buy my mom a house :)

Answer:

Perimeter- The distance around the figure.

Perimeter- 7.5 + 7.5 + 6 + 6

Perimeter- 15 + 6 + 6

Perimeter- 21 + 6

Perimeter- 27 m

Let me know if this helps!

The results of given question's parts based on hypothesis testing.

a) Null and Alternative hypothesis

H₀ : p = 0.8

H₀ : p = 0.8 Hₐ : p < 0.8

b) test statistic (z value ) is Z = -2.25.

c) P- value ( Z꜀ ) is - 1.64

d) Rejected the null hypothesis.

We have given that

Sample size, n = 900

Hypothesis population proportion, p₀ = 0.80

Sample proportion , p-hat = 0.77

favourable cases, X = 693

significance level, α = 0.05

a) The following null and alternative hypothesis for population proportion needs to be tested :

H₀ : p = 0.8

Hₐ : p < 0.8

This is corresponding to a left tailed test for a z test for one population will used .

c) we have given that, Significance level is α=0.05 and the critical value for a left tailed test is Z꜀ = - 1.64

so, the rejection region for left tailed test R = { Z Z<- 1.64 }

b) Z- statistic value :

Z = (p-hat - p₀)/√p₀(1-p₀)/n

=> Z = ( 0.77 - 0.8 )/√0.8×0.2/900

=> Z = -2.25

d) Decision about Null hypothesis,

Since, it is observed that Z = - 2.25 < Z꜀ = - 1.645 it is then concluded that the null hypothesis is rejected. Reject the null hypothesis. There is not enough evidence to conclude that the percentage of infants who receive immunization s is less than 80%.

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Based on the information presented, one cup measures a total of 14 centimeters.

To discover this, let's start by analyzing the information provided:

This means that by adding 2 cups,  the total height increases by 4 centimeters, and therefore if you add one cup this will increase by 1 centimeter.

Based on this idea, if two cups are 16 cm, let's calculate the height of one cup:

\(16 centimeters -2 centimeters = 14 centimeters\)

Based on the previous information one cup is 14 centimeters.

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21 + 25 = 46

21 + 12 = 33

46 + 33 = 79

therefore the answer is 79

Step-by-step explanation: thank you for listening

The slopes of opposite sides are equal, which means that they are parallel. Therefore, JKLM is a parallelogram.

Opposite sides have different slopes, which means that they are not parallel. Therefore, JKLM cannot be a rhombus because a rhombus is a special case of a parallelogram where all four sides are congruent and opposite sides are parallel.

A parallelogram is a quadrilateral (a four-sided polygon) in which opposite sides are parallel.

A rhombus is a special type of parallelogram in which all four sides are congruent.

To prove that quadrilateral JKLM is a parallelogram, we need to show that opposite sides are parallel.

We can find the slope of each side by using the formula:

\(m = \dfrac{y_2-y_1}{x_2-x_1}\)

The slope of JK:

(-5 - 1) / (1 - (-3)) = -6/4 = -3/2

The slope of LM:

(4 - (-2)) / (3 - 7) = 6/-4 = -3/2

The slope of KL:

(-2 - (-5)) / (7 - 1) = 3/6 = 1/2

The slope of MJ:

(1 - (-5)) / (-3 - 1) = 6/-4 = -3/2

We can see that the slopes of opposite sides are equal, which means that they are parallel. Therefore, JKLM is a parallelogram.

To prove that JKLM is not a rhombus, we need to show that at least one pair of opposite sides are not congruent.

We can find the length of each side using the distance formula:

Length of JK:

√[(1 - (-5))² + (1 - (-3))²] = √[36 + 16] = √[52]

Length of KL:

√[(-2 - (-5))² + (7 - 1)²] = √[9 + 36] = √[45]

Length of LM:

√[(4 - (-2))² + (3 - 7)²] = √[36 + 16] = √[52]

Length of MJ:

√[(-5 - 1)² + (-3 - 1)²] = √[36 + 16] = √[52]

We can see that all four sides have the same length, which means that they are congruent. Therefore, JKLM is a rhombus.

However, we can also see that opposite sides have different slopes, which means that they are not parallel. Therefore, JKLM cannot be a rhombus because a rhombus is a special case of a parallelogram where all four sides are congruent and opposite sides are parallel.

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The probability that a patient with a stiff neck has meningitis is very low at 0.002%.

To find the probability that a patient with a stiff neck has meningitis, we can use Bayes' theorem.

Let A be the event that the patient has meningitis and B be the event that the patient has a stiff neck.

We know that P(B|A) = 0.5, meaning that if a patient has meningitis, there is a 50% chance they will have a stiff neck. We also know that P(A) = 1/50,000, meaning that the probability that any patient has meningitis is 1 in 50,000. Additionally, we know that P(B) = 1/20, meaning that the probability that any patient has a stiff neck is 1 in 20.

Using Bayes' theorem, we can find the probability that a patient with a stiff neck has meningitis:

P(A|B) = P(B|A) * P(A) / P(B)
P(A|B) = 0.5 * (1/50,000) / (1/20)
P(A|B) = 0.00002 or 0.002%

Therefore, the probability that a patient with a stiff neck has meningitis is very low at 0.002%.

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The error expression of  |A - N| in the given problem is: Absolute Error

The absolute error is gotten by subtracting the true value from the measured value. The answer is normally expressed as ± or with an absolute value sign. The absolute error equation is expressed as: Absolute error = |measured value - true value|

Relative error is defined as a measurement of error that depends on the absolute error of a measuring tool as well as a measured value. Relative error can thus be defined as a decimal or as a percentage.

Now, we are told that

A is an actual value.

N is near the value,

From the definition of absolute error, we can clearly state that |A - N| is known as absolute error.

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Answer:

Step-by-step explanation By verified ✔️

So The answer for this question is 6cm

Circumference of a circle having radius of 27 yard can be found using the formula, π = 2(Area of Circle)/r, which is C = 169.6 yd

Given:

radius of circle = 27 yd

Thus:

Area = πr² = π(27)²

Area = 2,290.2 yd²

Circumference of a circle without using π = 2(2,290.2)/27

= 169.6 yd.

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Answer:

a² + b² = c²

Step-by-step explanation:

Pythagorean Theorem: a² + b² = c²

We use the Pythagorean Theorem to help us solve for missing right triangle side lengths. It is wise to remember this formula.

Answer:

\((x^4y^5)(x^2y^4)\)

Step-by-step explanation:

Keep these things in mind:

\(x^3\times x^3=x^{3+3}=x^6\\\\(x^3)^3=x^{3\times3}=x^9\)

Using those, simplify the left side of this equation:

\((x^2y^3)^3\\x^6y^9\)

Now we know what the exponents need to become, so we can find the difference between those and what we have on the right:

\(6-4=2\\9-5=4\)

We need to add a 2 to the x, and add a 4 to the y.

\((x^4y^5)(x^2y^4)\)

Answer: It is 0.73 my friend. Very good work.

Step-by-step explanation:

Answer:

11/3

Step-by-step explanation: