It's urgent I need help quick pls help me

It's Urgent I Need Help Quick Pls Help Me

Answers

Answer 1

Answer:

11

Step-by-step explanation:

16 - 4\(\sqrt{5}\) + 4\(\sqrt{5}\) - 5

= 16 - 5

= 11


Related Questions

which set of ordered pairs represent a function

which set of ordered pairs represent a function

Answers

Answer:

A relation is just a set of ordered pairs (x,y) . In formal mathematical language, a function is a relation for which: if (x1,y) and (x2,y) are both in the relation, then x1=x2 . This just says that in a function, you can't have two ordered pairs with the same x -value but different y -values.

Step-by-step explanation:

a boat has a crew of eight: two of those eight can row only on the stroke side, while three can row only on the bow side. in how many ways can the two sides of the boat be manned?

Answers

There are 56 possible ways to man the two sides of the boat with two crew members rowing on the stroke side and three crew members rowing on the bow side.

The number of ways to man the two sides of the boat can be calculated using the combination formula, C(n,r). In this case, n = 8 (the total number of crew members) and r = 5 (the number of crew members needed to man the two sides of the boat). The equation to calculate the number of ways to man the two sides of the boat can be written as C(8,5).

C(8,5) = 8!/(5!*3!) = 56.

This means that there are 56 possible ways to man the two sides of the boat with two crew members rowing on the stroke side and three crew members rowing on the bow side.

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As used in line 65, "fine" most nearly means
A) acceptable.
B) delicate.
C) ornate.
D) keen.

Answers

"fine" means almost used at line 65 is keen. The correct answer is D.

Given a passage as shown in the attached pictures.

Option D is the best answer. In the narrator's end, "Also by the time, Eppie was three years old, she had developed a good ability to do mischief and devise ingenious ways to avoid trouble." In this context, the word "fine" means almost keen, or acute.

Choices other than D being A, B and C are incorrect because in the context of the description in which Eppie is said to have a "pretty the ability for mischief", the word "fine" means almost keen or acute, not acceptable (option A), subtle (option B) or ornate (option C).

Hence, as used in line 65, the word given in the passage "fine" means closest to keen.

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As used in line 65, "fine" most nearly meansA) acceptable.B) delicate.C) ornate.D) keen.
As used in line 65, "fine" most nearly meansA) acceptable.B) delicate.C) ornate.D) keen.

Emir and his family ordered a meal that cost $50. Emir paid 8% sales tax and left an 18% tip on $50. What was the total cost?

Answers

Answer:

$63.00

Step-by-step explanation:

Your first step is to change the percents into fractions, you do this by moving the decimal point two times to the left.

Your equations look like this:

Tip equation: .18 * 50 = $9.00

Tax equation: .08 * 50 = $4.00

Then you just add them all up to get the total, and you get,

9+4+50 = 63

Cory uses 66.92 centimeters of wire. He uses 2 pieces of the wire. Each piece he uses is 6.58 cm long. What is the length of the remaining wire, rounded to the nearest tenth of a centimeter?

Answers

Cory has used a total of 13.16 centimeters of wire (2 pieces of wire, each measuring 6.58 cm). Therefore, the length of the remaining wire is 53.76 centimeters, rounded to the nearest tenth of a centimeter.

To find the length of the remaining wire, we need to subtract the length of the wire used by Cory from the total length of the wire. Cory has used 2 pieces of wire, and each piece is 6.58 centimeters long. So, the total length of wire used is 2 * 6.58 = 13.16 centimeters.

To find the remaining wire, we subtract the length used from the total length. The total length of wire available was given as 66.92 centimeters. Subtracting the length used (13.16 cm) from the total length, we get 66.92 - 13.16 = 53.76 centimeters.

Since we need to round the answer to the nearest tenth of a centimeter, the length of the remaining wire is approximately 53.8 centimeters.

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Please help! I will give 40 points.

Please help! I will give 40 points.

Answers

Answer:

d) x\(\geq 4\)

Step-by-step explanation:

Answer:

option d is correct ok hope it helps

Simplify the following expression. (10m – 7)(m +8)​

Simplify the following expression. (10m 7)(m +8)

Answers

Answer:

10m^2 + 73m - 56

Step-by-step explanation:

First you want to distribute it, 10m(m + 8) - 7 (m + 8)

And again: 10m^2 + 80m - 7 (m + 8)

And one last time: 10m^2 + 80m - 7m - 56

Then you want to combine the like terms: 10m^2 + 73m - 56

g a call center receives calls from customers every 7 minutes, and it takes 15 minutes to finish a call. the system assumes poisson arrivals and exponential service time. the manager's goal is to limit the average customer waiting time to 2 minutes. what is the minimum number of customer services the call center needs to have to achieve this goal

Answers

To solve this problem, we can use the M/M/1 queueing model, where "M" stands for Poisson arrivals and "M" stands for exponential service time, and "1" means there is one server.

From the problem, we know that the arrival rate, λ, is 1/7 customers per minute, and the service rate, μ, is 1/15 customers per minute. The utilization factor, ρ, is given by ρ = λ/μ = (1/7)/(1/15) = 15/7. Since ρ > 1, the system is not stable, and the average customer waiting time is infinite.

To limit the average customer waiting time to 2 minutes, we need to reduce the utilization factor. One way to do this is to increase the number of servers. Let's assume the call center has "k" servers. The average customer waiting time, W, can be approximated by the following formula:

W = (ρ^k / kμ) / (1 - ρ)

We want to find the minimum value of "k" such that W ≤ 2. Rearranging the formula, we get:

k ≥ (ρ/(1-ρ)) * (ρ^(k-1)) * (1/(2μ))

We can use trial and error or numerical methods to find the smallest integer value of "k" that satisfies this inequality. For example, starting with k = 1, we can calculate the right-hand side of the inequality and check if it is greater than or equal to 1. If it is not, we can increase k by 1 and repeat the calculation until we find the smallest integer value of "k" that satisfies the inequality.

Alternatively, we can use a formula for the Erlang C model, which is a generalization of the M/M/k model for multiple servers. The formula gives the probability that a customer has to wait for service, given the arrival rate, service rate, and number of servers. We can then use this probability to calculate the average customer waiting time using Little's law.

The minimum number of customer services needed to achieve the goal of limiting the average customer waiting time to 2 minutes is the smallest integer value of "k" that satisfies the inequality.

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does the point (-5,3) satisfy the inequality 3x+2y<12

Answers

Yes, the point (-5,3)  satisfy the inequality 3x+2y<12.

What is inequality?

In Algebra, inequality is a Mathematical statement that shows the relation between two expressions using the inequality symbol.

The expressions on both sides of an inequality sign aren't equal. It means that the expression on the left- hand side should be lesser than or lower than the expression on the right- hand side or viceversa.

However, also it's called non fictional inequalities, If the relationship between two algebraic expressions is defined using the inequality symbols.

Still, “< ”, “ ≥ ”, “ If two real figures or the algebraic expressions are related by the symbols “> ”. ”

We have an expression;

3x + 2y < 12

We have point (-5, 3);

So, for checking the statisfaction of inequality we have to put the point in the expression;

Here, x = -5 and y = 3

so, 3(-5) + 2(3) < 12

     -15 + 6 < 12

      -9 < 12

Which is true.

Hence, we see the clearly that it the points (-5,3) satisfies the given expression 3x + 2y < 12.

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I need help sjsb please​

I need help sjsb please

Answers

Answer:

(-1, 0) and (3,0)

Step-by-step explanation:

Look on the line, where the porabola is touching. :)

Answer:

ask

bumblebriee

Step-by-step explanation:

A right triangle has a right exterior angle?
True or False?

Answers

False because 360-90 is 270

use the Pythagorean Theorem to find the missing lengths

use the Pythagorean Theorem to find the missing lengths

Answers

Answer:

4) c = 10

5) b = 10

6) b = 12

7) a = 4

Step-by-step explanation:

Pythagorean Theorem = a^2 + b^2 = c^2

to solve these, just substitute a, b, and c for the values given.

4) a = 8, b = 6

a^2 + b^2 = c^2

8^2 + 6^2 = c^2

64 + 36 = c^2

100 = c^2

c = \(\sqrt{100}\)

c = 10

5) a = 24, c = 26

a^2 + b^2 = c^2

24^2 + b^2 = 26^2

576 + b^2 = 676

subtract 576 from both sides

b^2 = 676 - 576

b^2 = 100

b = 10

6) a = 5, c = 13

a^2 + b^2 = c^2

5^2 + b^2 = 13^2

25 + b^2 = 169

subtract 25 from both sides

b^2 = 169 - 25

b^2 = 144

b = 12

7) b = 11, c = \(\sqrt{137}\)

a^2 + b^2 = c^2

a^2 + 11^2 = 137

a^2 + 121 = 137

a^2 = 137 - 121

a^2 = 16

a = 4

A certain virus infects one in every 300 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 8% of the time if the person does not have the virus. (This 8% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive".

a) Find the probability that a person has the virus given that they have tested positive, i.e. find P(A|B). Round your answer to the nearest tenth of a percent and do not include a percent sign.
P(A|B)= %

b) Find the probability that a person does not have the virus given that they test negative, i.e. find P(A'|B'). Round your answer to the nearest tenth of a percent and do not include a percent sign.
P(A'|B') = %

Answers

The probability that a person has the virus given that they have tested positive P[A/B] = 1.9 %

What is the probability?

Probability refers to a possibility that deals with the occurrence of random events.

According to Bayes Theorem;

P[A/B]  =  P(A) × P[B/A] / P(B)

The branches of events are as follows;

P(A) = event person infected          

P(B)  =  person test positive

a) The probability that a person has the virus given that they have tested positive will be;

P[A/B]  = P(A) × P[B/A] / P(B)

where   P(A)  = 1/300  =   0.0033   P[B/A] = 0,9    

Then P(A) × P[B/A] =  0.0033 × 0.9  =  0.00297

P(B)   is    ( 1/300 ) × 0,9  +  (299/300) × 0.15

P(B) = 0,0033 × 0.9 + 0.9966 × 0.15    

P(B) = 0.1524

Finally

P[A/B] =  0.00297 /0.1524

P[A/B] = 0.019     or     P[A/B] = 1.9 %

b) Following sames steps:

The probability that a person does not have the virus given that they test negative;

P[A' /B'] = (299/300) × 0.85  / (299/300)  × 0.85 + (1/300 × 0.1)

P[A' /B']  = 0.8471 /0.8474

P[A' /B'] = 0.9996      

or    P[A' /B'] = 99.96 %

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What is the answer to ... 7x-18=x

Answers

Answer:

x=3

Step-by-step explanation:

7x-18=x

Subtract 7x from each side

7x -18-7x = x-7x

-18 = -6x

divide each side by -6

-18/-6 = -6x/-6

3 =x

can someone help me? Am confused

Select the correct answer.



The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school. The rest of the park will be turned into a lawn. What will the area of the lawn be?


A.

168 square feet

B.

224 square feet

C.

280 square feet

D.

448 square feet

can someone help me? Am confusedSelect the correct answer.The city mayor wants to use the reserved section

Answers

The ambush’s aims. Whenever ska

Write 2 mixed numbers that have a sum of 3.

Answers

Answer: 1 1/3 and 1 2/3

Step-by-step explanation:

please mark brainliest

1 1/2 and 1 4/5 is the answer

Is it possible to solve 3 equations with 4 variables?

Answers

A linear system with 3 equations and 4 variables by representing it with an augmented matrix and bringing the matrix to reduced row-echelon form can be solved.

What is linear system?

A mathematical representation of a system based on the application of a linear operator is known as a "linear system" in systems theory. Ordinarily, compared to nonlinear systems, linear systems display much simpler features and properties. The automatic control theory, signal processing, and telecommunications all heavily rely on linear systems as a mathematical abstraction or idealisation.

Linear systems, for instance, are frequently used to model the propagation medium for wireless communication systems. An operator, H, that converts an input, x(t), into an output, y(t), a kind of black box description, can be used to describe a general deterministic system.

The superposition principle, or alternatively both the additivity and homogeneity properties, must be satisfied by a system to be considered linear, and only then.

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In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Smitha answered all questions and scored (-15) marks though he got 3 correct answers. How many incorrect answer had she attempted?
Any one help I will mark u as BRAINLIEST ANSWER if u help me plssssss! I will not accept wrong answer pls

Answers

Answer:

15 answers

Step-by-step explanation:

To solve this question we need to set up an equation.

Let's name the number of incorrect answers x.

We can set up an equation that's essentially:

(Points for correct answer)*(number of correct answers)+(points for incorrect answer)*(number of incorrect answers)=final score

When we plug in our numbers and variables it looks like this:

5(3)+(-2x)=-15

Simplify

15-2x=-15

Subtract 15 from both sides

-2x=-30

Divide both sides by -2

x=15

This means Smitha attempted 15 wrong answers, and that there were 18 questions in total.


(1) A pizza restaurant had 3/5 of a gallon of pizza sauce left at the end of the evening and
divided it equally among 6 pizzas. How much sauce did they put on each pizza?

Answers

Answer:

The pizza restaurant put 1/10 of the sauce on each pizza.

Step-by-step explanation:

Take the 3/5, and on a calculator divide the 3 by the 5:

0.6

Then, take the 0.6 and divide it by the 6 pizzas:

0.1, converted into a fraction equals 1/10.

The pizza restaurant put 1/10 of the sauce on each pizza.

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

8. Val's employer deducts 20%, 0.2 times his wages, in payroll taxes. How much is deducted when Val earns $421?​

Answers

When Val earns $421, the amount deducted from his wages for payroll taxes is $84. This is calculated by multiplying Val's wages by the payroll tax rate of 0.2, which gives the amount of taxes deducted.

Val's employer deducts 20% of his wages in payroll taxes. To find out how much is deducted when Val earns $421, we need to multiply his wages by the payroll tax rate.

Payroll tax rate = 20% = 0.2

Amount of payroll taxes deducted = payroll tax rate x Val's wages

= 0.2 x $421

= $84

Therefore, when Val earns $421, the amount deducted from his wages for payroll taxes is $84. It is important to note that payroll taxes are mandatory deductions from an employee's wages, and they fund various government programs such as Social Security, Medicare, and unemployment benefits.

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True/False: Every positive number has a positive and a negative square root.

Answers

Answer:

True, explanation, lets hope I had a good math teacher lol

I need help with this question please. This is non graded.

I need help with this question please. This is non graded.

Answers

Answer: A

Given:

\((4x^2+8x)-(x^2-10x)\)

First, distribute the negative sign:

\(\begin{gathered} (4x^{2}+8x)-(x^{2}-10x) \\ \Rightarrow(4x^2+8x)-x^2+10x \\ \Rightarrow4x^2+8x-x^2+10x \end{gathered}\)

Then, combine like terms:

\(\begin{gathered} \begin{equation*} 4x^2+8x-x^2+10x \end{equation*} \\ \Rightarrow3x^2+18x \end{gathered}\)

Then factor out 3x:

\(\begin{gathered} \begin{equation*} 3x^2+18x \end{equation*} \\ \Rightarrow3x(x+6) \end{gathered}\)

With this, we know that:

\((4x^2+8x)-(x^2-10x)=3x(x+6)\)

The answer would then be A.

What is equivalent? A B C OR D
please help

What is equivalent? A B C OR Dplease help

Answers

I think the answer should be C

Answer:

\(8^{\frac{x}{3} }\)

Step-by-step explanation:

Will mark brainliest !!! find the quotient of z1 by z2. express your answer in trigonometric form.

Answers

To find the quotient of z1 by z2 in trigonometric form, divide the magnitudes and subtract the angles of the complex numbers z1 and z2. Therefore, the quotient of z1 by z2 in trigonometric form is (r1 / r2) * (cos(θ1 - θ2) + i sin(θ1 - θ2)).

In complex number form, z1 and z2 can be expressed as z1 = r1 * (cos θ1 + i sin θ1) and z2 = r2 * (cos θ2 + i sin θ2), where r1 and r2 are the magnitudes and θ1 and θ2 are the angles of the complex numbers.

To find the quotient of z1 by z2, we divide the magnitudes and subtract the angles. The magnitude of the quotient is given by |z1 / z2| = |z1| / |z2| = r1 / r2.

The angle of the quotient is given by the difference of the angles, θ1 - θ2.

Therefore, the quotient of z1 by z2 in trigonometric form is (r1 / r2) * (cos(θ1 - θ2) + i sin(θ1 - θ2)).

This expression represents the complex number obtained by dividing z1 by z2 and expresses the result in trigonometric form, where the magnitude is the ratio of the magnitudes of the complex numbers and the angle is the difference of the angles of the complex numbers.

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find the quotient of z1 by z2 and express your answer in trigonometric form.

−8y−13=14y+11 what is the answer?

Answers

Answer:

y = -12/11

Step-by-step explanation:

-8y - 13 = 14y + 11

-8y - 14y = 11 + 13

-22y = 24

y = 24/-22

y = -12/11

Check:

-8*-12/11  -  13 = 14*-12/11 + 11

96/11  -  13 = -168/11  +  11

96/11 - 143/11 = -168/11 + 121/11 = -47/11

How did the ancient Roman sculptor of this relief from the Ara Pacis Augustae (Altar of Peace of Augustus) create the impression of three dimensions in it

Answers

The use of shadows and highlights helped to further accentuate the sense of depth and dimensionality in the relief. By carving deeper or shallower lines in the stone, the sculptor was able to create areas of light and shadow, which helped to create the illusion of three-dimensional form.

The ancient Roman sculptor of the relief from the Ara Pacis Augustae created the impression of three dimensions in it through a variety of techniques.

First, the sculptor used the technique of "high relief," in which the figures protrude from the background with a significant degree of depth. This technique creates a sense of depth and dimensionality by emphasizing the contrast between the raised figures and the recessed background.

Additionally, the sculptor utilized the technique of "contrapposto," in which the figures are depicted with a naturalistic and relaxed stance, with the weight of the body shifted to one side. This technique creates the impression of movement and a sense of space around the figures.

The sculptor also employed the technique of "foreshortening," in which objects that are farther away are depicted as smaller, creating a sense of depth and distance in the composition.

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Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 96.62, y= 94.75, r=0.879, P-value = 0.000, and ŷ = -2.59 + 1.01x, where x represents the IQ score of the twin born first. Find the best predicted value of ý given that the twin born first has an IQ of 109?

Answers

Answer:the best predicted value of ý when the twin born first has an IQ of 109 is 107.50

Step-by-step explanation:

Given the regression equation:

ŷ = -2.59 + 1.01x

We need to predict the value of ý when x (IQ score of the twin born first) is 109.

So we substitute x = 109 into the regression equation:

ŷ = -2.59 + 1.01(109)

ŷ = -2.59 + 110.09

ŷ = 107.50

Therefore, the best predicted value of ý when the twin born first has an IQ of 109 is 107.50.

Find the equation of the circle with center at (3,-2) and radius of 3.

Answers

Answer:

The equation of the circle is (x - 3)² + (y + 2)² = 9

Step-by-step explanation:

The form of the equation of a circle is (x - h)² + (y - k)² = r², where

h is the x-coordinate center of the circlek is the y-coordinate of the center of the circler is the radius of the circle

∵ The center of a circle is (3, -2)

x-coordinate of the center is 3

y-coordinate of the center is -2

h = 3 and k = -2

∵ The radius of the circle is 3

r = 3

→ Substitute them in the form of the equation above

∵ (x - 3)² + (y - -2)² = (3)²

∴ (x - 3)² + (y + 2)² = 9

The equation of the circle is (x - 3)² + (y + 2)² = 9

by how many times does the sample size have to be increased to decrease the margin of error by a factor of 1/7

Answers

To decrease the margin of error by a factor of 1/7, the sample size needs to be increased by a factor of 49.

To understand why this is the case, recall that the margin of error is a function of the sample size, the standard deviation of the population, and the confidence level. The margin of error is proportional to the inverse square root of the sample size, which means that if we want to decrease the margin of error by a factor of 1/7, we need to increase the sample size by a factor of 7.

However, increasing the sample size by a factor of 7 only decreases the margin of error by a factor of the square root of 7 (approximately 2.65). To decrease the margin of error by a factor of 1/7, we need to increase the sample size by a factor of 7 times the square of 2.65, which is approximately 49.

In other words, to decrease the margin of error by a factor of 1/7, we need to increase the sample size by a factor of 49. This means that we need to collect almost 50 times more data than we currently have in order to achieve the desired level of precision.

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what is the square root of 4

Answers

Answer:

√4 = 2

Because 2 × 2 = 4

If you want to get square root of any number find the number which you can multiply two times to give you that certain number

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