Need the answer for 18 please!!!

Answers

Answer 1

Answer:

D (2, 1)

Step-by-step explanation:

Fir an in-detailed representation, image below

Started with plotting the given center (yellow)From the center: go 5 units up, down, right and left (light blue)You will have 5 points plotted nowconnect the light blue dots to form a circle (red, not to scale!)Now, locate every choice point, which one is on the red line?D!!!!!

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Related Questions

What's the least common denominator of 34, 45, and 237
O A. 20
OB. 12
O C. 15
O D. 60

Answers

Answer:

120870

Step-by-step explanation:

Your answer choices are not correct. The least common denominator of 34, 45, and 237 would be 120870.

LCD(1/34, 1/45, 1/237) = LCM(34, 45, 237) = 2×32×5×17×79 = 120870

1/34= 3555/120870

1/45= 2686/120870

1/237= 510/120870

HOPE THIS HELPS!!

Mia counts on in steps of 100 she starts at 946. Write the next number she says

Answers

Answer:

100+946=1046

Ao the next no. Is 1046

I need help with the question that says the area of the triangle is…. What is one way to write the equation?

Answers

Answer:

A = b(h/2)

Step-by-step explanation:

Any rewrite of the equation can make use of the commutative and associative properties of multiplication.

What are the properties of multiplication?

The commutative property of multiplication lets you change the order of the operands. The given equation can have any of 6 different orders of operands:

A = (1/2)bh = (1/2)hb = b(1/2)h = bh(1/2) = h(1/2)b = hb(1/2)

The associative property of multiplication lets you change the grouping of the operands:

A = ((1/2)b)h = (1/2)(bh)

These ways of grouping operands can apply to any of the 6 different orders of operands, so there are 12 ways to write the equation.

One way to write the equation is ...

A = b(h/2)

Additional comment

Please note that the way we have written the equation helps you see that the area of a triangle is equivalent to the area of a rectangle that has half the height. This can sometimes be useful when computing the areas of composite figures.

A = bh . . . . . . . rectangle areaA = b(h/2) . . . . triangle area with the same height

Answer:

[tex] A = \dfrac{bh}{2} [/tex]

Step-by-step explanation:

[tex]A = \dfrac{1}{2}b \cdot h[/tex]

[tex] A = \dfrac{bh}{2} [/tex]

Rhoda is asked to graph this system of equations:
5x-6y=4
3y+2x=7
How many times will the lines intersect?

A. The lines will not intersect
B. The lines will intersect once.
C. There is no way to tell without graphing the lines first.
D. The lines will intersect infinitely many times, because they are identical.

Answer back fast!
I will award Brainliest too!

Answers

Answer: B. The lines will intersect once.

Step-by-step explanation:

Multiplying the bottom equation by 2, we get 6y+4x=14.

Adding this to the first equation, this gives 9x=18, and thus x=2.

Therefore, since this means there will be 1 solution, the lines will intersect once.

Which linear inequality is represented by the graph?

Answers

Answer: 3

Step-by-step explanation:

Estimate the average rate of change from x=4 to x=5 .

Answers

Is this all the question? No other questions that tell us y? You need to know the function to get y to solve this question

Answer:

Average rate of change = 4/3

Step-by-step explanation:

We have to calculate the average rate of change of the graph at x = 2 to x = 5.

From the graph attached,

At x = 2,

f(2) = 3

At x = 5,

f(5) = 7

Since, average rate of change of the function between x = a and x = b is defined by,

Average rate of change = f (b)-f (a) / b - a

Therefore, average rate of change of the function represented by the graph will be =7-3/5-2

= 4/3

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests,
Paul has scored 91, 88, and 93 on the first three. What range of scores on the fourth test will give Paul a C for the
semester (an average between 70 and 79, inclusive)? Assume that all test scores have a non-negative value.
Express your answer in interval notation.

Answers

Answer:

[8, 44]

Step-by-step explanation:

The average of equally-weighted values is their sum divided by their number.

Setup

For some fourth test score x, Paul wants an average between 70 and 79. This gives rise to the inequality ...

70 ≤ (91 +88 +93 +x)/4 ≤ 79

Solution

Multiplying by 4, we have ...

280 ≤ 272 +x ≤ 316

8 ≤ x ≤ 44 . . . . . . . . . . subtract 272

Paul will get a C if his fourth test score is in the interval [8, 44].

help please. been stuck on this for the past hour!!

Answers

Answer:

A) 100 terms, B) 63 terms, C) 101 terms

==========================

Given sequences:

A) 1, 4, 4², ..., 4⁹⁹B) 11, 15, 19, 23, ..., 259C) 44, 45, 46, ..., 144

To find

The number of terms.

Solution

A) We know any number with power of zero equals 1, therefore the sequence can be expressed as powers of 4:

4⁰, 4¹, 4², 4³, ... , 4⁹⁹

The number of terms from zero to 99 is:

99 + 1 = 100

B) This is a AP with the first term of 11 and common difference of 4.

The nth term equation is:

aₙ = a₁ + (n - 1)d

Substitute the values and solve for n:

259 = 11 + (n - 1)*44(n - 1) = 259 - 114(n - 1) = 248n - 1 = 248/4n - 1 = 62n = 63

C) Same as above, the sequence is AP, with the first term 44 and common difference 1.

Applying the nth term formula:

144 = 44 + (n - 1)*1n - 1 = 144 - 44n - 1 = 100n = 101

A recent survey found that 4% of the population of the United States is unemployed. If Charlotte, North Carolina, has 26,440 unemployed, what is the population of Charlotte?

Answers

The population of Charlotte is 661,000.

What is the population of Charlotte?

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

The population of Charlotte = number of unemployed people / percentage of unemployed

26,440 / 0.04 = 661,000

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(b) Solve the trigonometric equation and verify that its solutions are the x-coordinates of the maximum and minimum points of f. (Calculus is required to find the trigonometric equation. For each solution, give an exact answer and then round to four decimal places. Enter your answers from smallest to largest.)

Answers

The given trig equation is obtained by solving for the critical points of [tex]f[/tex], which is done by differentiating [tex]f[/tex] and setting the derivative equal to zero.

We have

[tex]18 \sin(x) \cos(x) - 9 \sin(x) = 0[/tex]

[tex]9 \sin(x) (2 \cos(x) - 1) = 0[/tex]

[tex]9 \sin(x) = 0 \text{ or } 2 \cos(x) - 1 = 0[/tex]

[tex]\sin(x) = 0 \text{ or } \cos(x) = \dfrac12[/tex]

In the interval [tex]0\le x< 2\pi[/tex], we have

[tex]\sin(x) = 0 \implies x = 0 \text{ or } x = \pi[/tex]

and

[tex]\cos(x) = \dfrac12 \implies x = \dfrac\pi3 \text{ or } x = \dfrac{5\pi}3[/tex]

In order from smallest to largest, that's

[tex]x = 0 \text{ or } x = \dfrac\pi3 \text{ or } x = \pi \text{ or } x = \dfrac{5\pi}3[/tex]

The solution to the Trigonometric equation is given as below.

What is a Trigonometric equation?

A trigonometric equation is one that involves one or more unknown trigonometric ratios. It is represented in terms of sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (cosec) angles.

The solution to the above problem is?

The provided trigonometric equation is produced by determining the critical points of f by differentiating and setting the derivative to zero.

Thus,

18 sin (x) cos (x) - 9 sin (x) = 0

8 sin(x) = 0 or 2 cos (x) - 1 = 0

Sin (x) = 0 or Cos (x) = 1/2

Given the interval of 0 ≤ x ≤ 2π

→ Sin (x) = 0 → x = 0 or x = π

and

Cos (x) = 1/2

→ x = π/3 or x = 5π/3

Arranging the values from the smallest to the largest, we have:

x = 0 or x = π/3

x = π or x = 5π/3

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The following shape is only based on squares, semicircles and quarter circles. Find the Area and Perimeter of the shaded part. Answers in terms of pi.

Answers

The perimeter of the shaded region is 8π cm and the area of the shaded region is 32(π - 2) cm² or 36.53 square cm.

What is a circle?

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have shown a square in which a one-fourth circle is shown and making an ellipse.

The perimeter of the circle = 2πr = 2π(8) = 16π cm

The perimeter of the one-fourth is circle = (16π)/4 = 4π cm

The perimeter of 2 one-fourth circle = 2(4π) = 8π cm

The area of the one-fourth circle = (1/4)πr² = (1/4)π(8)² = 16π square cm

The area of the right-angle triangle = (1/2)(8)(8) = 32 square cm

The area of the shaded region = 2(16π - 32) = 36.53 square cm

= 32(π - 2)cm²

Thus, the perimeter of the shaded region is 8π cm and the area of the shaded region is 32(π - 2) cm² or 36.53 square cm.

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The sum of three consecutive even integers is –78. What are the integers? Describe how you would use the strategy of writing an equation to solve the given problem. Which of the following did you include in your description? Check all of the boxes that apply. Let x = the smallest even integer, x + 2 = the next even integer, and x + 4 = the largest even integer. Write the equation x + x + 2 + x + 4 = –78. Simplify the equation as 3x + 6 = –78. Solve the equation by subtracting 6 and dividing by 3 on both sides of the equation. Check that the sum of the integers –28, –26, and –24 is –78.

Answers

Answer:

456_487= 57,548 that it try it and lete know

Geometry Perimeter and area
A)
B)
C)

Answers

A) 113.1

Explanation: π(6)^2= 113.1cm^2
6cm is the radius of the big circle

B) 28.27
Explanation: π(3)^2= 28.27

C)56.56cm^2

Explanation: Subtract the area of the two yellow circles which is (28.27+28.27 =56.54)
from the area of the big circle which is 113.1.
113.1-56.54=56.56

Is the function one-to-one? {(-19,9),(-2,9),(-7,-16)}

Answers

Answer:

Step-by-step explanation:

the y coordinate 9 repeats twice

50 POINTS! Should I buy an Eric Emanuel hoodie or a Cdg Hoodie

Answers

Answer:

Step-by-step explanation:

Simplify the slope of AC.
B (b,c)
C (a+b, c)
Al(0, 0)
D (a,0)
Enter the value that
belongs in the green box.
Slone Formula: Y2-1
[?]
+b

Answers

Answer:

[tex] \boxed{\bf \cfrac{\boxed{c}}{\boxed{a }+ b}} [/tex]

Step-by-step explanation:

Given:

[tex] \tt (x_1,y_1) : A (0,0)[/tex]

[tex]\tt (x_2,y_2) : C (a+b, c) [/tex]

[tex]\boxed{\tt Slope= \cfrac{y_2,y_1}{x_2,x_1}} [/tex]

[tex]\tt \cfrac{c - 0}{a + b - 0} [/tex]

Add zero (Anything plus zero gives itself).

[tex] \tt \cfrac{c}{a + b + 0} [/tex]

[tex]\tt \cfrac{c}{a + b} [/tex]

▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎

Question An old vinyl record is played on a turntable that turns at a rate of 45 rotations per minute. Find the angular speed in radians per second. Give your answer as a fraction and do not include units. Keep your answer in terms of if necessary.

Answers

The angular speed of the turntable is = 4.7 rad/sec.

Calculation of angular speed

Angular speed can be defined as the rate at which angular displacement changes with respect to time.

Speed can be defined as the distance traveled by an object at a particular time interval.

The rate of rotation of the turntable = 45 rotations per minute.

That is, the time taken to complete one rotation in seconds = 1/45 ×60sec = 1.34secs

This is taken to be the period of rotation (T)

Therefore, the angular speed is calculated using the formula, 2π/T

= 2×3.14/1.34 = 4.7 rad/sec.

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Golf Clubs R Us had a set of 10 golf clubs that were marked on sale for $720. This was a discount of 15% off the original selling price.

Answers

The original selling price is $847.10

How to determine the original selling price?

The given parameters are:

Discount price = $720

Discount = 15%

The original selling price is calculated as:

Discount price = Original selling price * (1 - Discount)

This gives

720 = Original selling price * (1 - 15%)

Evaluate the difference

720 = Original selling price * 0.85

Divide by 0.85

Original selling price = 847.10

Hence, the original selling price is $847.10

Answers

Answer:

sin=-3/5
cos=4/5

tan-3/4

csc=5/-3

sec=5/4

cot=4/-3

Step-by-step explanation:

you draw a right triangle in the fourth quadrant and then use pythagoreas theorem to find the length of the hypotenuse(2 sides are -3 and 4, hypotenuse is 5), and then just use the sides to find all 6 trigonometric functions.

Use a graphing calculator to find the value of the correlation coefficient r and determine if there is a strong correlation among the data.
(1, 5), (4, 8), (8, 3), (13, 10), (19, 13)

Answers

Using a calculator, the correlation coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.

What is a correlation coefficient?

It is an index that measures correlation between two variables, assuming values between -1 and 1.If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.

Using a calculator, we insert the points (x,y) to find the coefficient. In this problem, the points are given as follows:

(1, 5), (4, 8), (8, 3), (13, 10), (19, 13)

The coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.

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A 20-foot ladder is leaning against a building. The ladder forms an angle of 55" with the ground.
Part A: How far away from the building is the bottom of the ladder? Round the answer to the nearest tenth.
Part B: How far up the building does the ladder go? Round the answer to the nearest tenth.
Part C: If the ladder is repositioned, and the base is now 9 feet from the building, what is the new angle that the ladder makes with the ground? Round the answer to the nearest tenths place.

Answers

10 feet away from base

What is the range of the function f(x)=1/2√x?

A. all real numbers

B. all real numbers greater than but not equal to 0

C. all real numbers less than or equal to 0

D. all real numbers greater than or equal to 0

Answers

Answer:

D. all real numbers greater than or equal to 0

Step-by-step explanation:

The range is the set of y-values.

Factoring Inequalities,

Please help as I do not know how to progress after this.

Answers

The factored inequality is [tex]x^2-3x+6\geq 0[/tex]

Factoring Inequalities

The given inequality is:

[tex]-x^2+3x-6\leq 0[/tex]

This can be further simplified as:

[tex]-(x^2-3x+6)\leq 0[/tex]

The inequality can be re-written as:

[tex]x^2-3x+6\geq 0[/tex]

Since the question does not state that we should solve the inequality, the simplest we can get after factoring is [tex]x^2-3x+6\geq 0[/tex]

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Write this ratio as a fraction in simplest form without any units. 28 quarts to 9 gallons You can use the table below to help convert the units. Length Weight Capacity (Volume) 1 foot 12 inches 1 yard = 3 feet 1 pound = 16 ounces 1 pint = 2 cups 1 quart = 2 pints 1 gallon = 4 quarts

Answers

Answer:

7/9

Step-by-step explanation:

In order to write the fraction without any units (as a pure number), we must have units in the numerator and denominator that are the same. Then the units cancel.

Convert to gallons

We are given the conversion ...

4 quarts = 1 gallon

Multiplying by 7, we see ...

28 quarts = 7 gallons

Ratio

This lets us write the desired fraction as ...

(28 quarts)/(9 gallons) = (7 gallons)/(9 gallons) = 7/9

The ratio in simplest form is 7/9.

Please give an answer and solution.

Answers

Using proportions, it is found that 78 students would prefer long jump.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Out of 300 students, 26% would prefer long jump, hence the amount is given by:

n = 0.26 x 300 = 78 students.

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A certain medical test is known to detect 73% of the people who are afflicted with the disease Y. If 10 people with the disease are administered the test, what is the probability that the test will show that: All 10 have the disease, rounded to four decimal places? At least 8 have the disease, rounded to four decimal places? At most 4 have the disease, rounded to four decimal places?

Answers

The probability of an event is the measurement of the chance of that event's occurrence. The probabilities of considered events are:

P(At least 8 have the disease) ≈ 0.4378P(At most 4 have the disease) ≈ 0.0342How to find that a given condition can be modeled by binomial distribution?

Binomial distributions consist of n independent Bernoulli trials. Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

Suppose we have random variable X pertaining to a binomial distribution with parameters n and p, then it is written as

X = B(n,p)

The probability that out of n trials, there'd be x successes is given by

P(X=x) = [tex]^nC_xp^x(1-p)^{n-x}[/tex]

Since 10 people can be either diseased or not and they be so independent of each other (assuming them to be selected randomly) , thus, we can take them being diseased or not as outputs of 10 independent Bernoulli trials.

Let we say

Success= Probability of a diseased person tagged as diseased by the clinic

Failure = Probability of a diseased person tagged as not diseased by the clinic.

Then,

P(Success) = p = 72% = 0.72 (of a single person)

P(Failure) = q = 1-p = 0.28

Let X be the number of people diagnosed diseased by the clinic out of 10 diseased people. Then we have: X ≈ B(n+10,P=0.73)

Calculating the needed probabilities, we get:

a) P(At leased 8 have disease) = P(X≥8) =P(X=8) + P(X=9) + P(X=10)

P(X≥8) = [tex]^{10}C_8(0.73)^8(0.28)^2+^{10}C_9(0.73)^9(0.27)^1+^{10}C_{10}(0.73)^{10}(0.27)^0[/tex]

P(X≥8) ≈ 0.2548 + 0.1456 + 0.0374 ≈ 0.4378

b) P(At most 4 have the disease) = P(X≤4) = P(X=0) + P(X=1)+P(X=2)+P(X=3)+P(X=4)

P (X ≤ 4) =

[tex]^{10}C_0(0.73)^0(0.27)^{10}+^{10}{C_1(0.73)^1(0.27)^9+^{10}{C_2(0.73)^2(0.27)^8+^{10}C_3(0.73)&^3(0.27)^7 \\[/tex]

[tex]+^{10}C_4(0.73)^4(0.27)^6[/tex]

P (X ≤ 4) = 0.000003 + 0.000076+0.00088+0.00604+0.02719

P (X ≤ 4) = 0.0342

Thus,

The probabilities of considered events are:

P(At leased 8 have disease) = 0.4378 approxP(At most 4 have the disease) = 0.0342 approx

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Leroy wants to tile the floor in his kitchen. The floor is 10 feet by 12 feet. Each tile is 6 by 8 inches. How many tiles will he need to finish the job?
a. 124 tiles
b. 360 tiles
c. 412 tiles
d. 514 tiles

Answers

Answer:

Step-by-step explanation:

Convert everything to inches first

The floor is 120 inches by 144 inches

The floor can be covered with (120/6) * (144/8) tiles

(120/6) * (144/8) = 20*18=360 tiles, hence b.

How to solve the inequality of ...

Answers

Answer:

x<3−√11 /2 or x > 3 +√11/2

Step-by-step explanation:

Solve the inequality for x by finding a, b, and c of the quadratic then applying the quadratic formula.

calculate a four day moving average for a price of the stock for the end of day 7.day1=32,day2=56,day3=50,day4= 60, day5=59 ,day6 =55,day7=59,day8=63

Answers

The moving average of the stock for the end of day 7 is 53

How to determine the average

Note that

Average = Day 1 + Day 2 + Day3 + Day 4 = Day 5 + Day 6 + Day 7/ 7

We have

Average = 32 + 56 + 50 + 60 + 59 + 55 + 59 /7

Average = 371/ 7

Average = 53

Therefore, the moving average of the stock for the end of day 7 is 53

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Pls help! Geometry
What is the perimeter of the shape above?
What is the area of the shape above?

Answers

(a) The arc length of each of the two smaller semicircles is [tex]4\pi[/tex], and the arc length of each of the two larger semicircles is [tex]15\pi[/tex]. Therefore, the perimeter is [tex]2(4\pi)+2(15\pi)=38\pi[/tex].

(b) The area of each of the smaller semicircles is [tex]\frac{1}{2}(\pi)(4^2)=8\pi[/tex], and the areaof each of the larger semicircles is [tex]\frac{1}{2}(\pi)(15^2)}=\frac{225\pi}{2}[/tex].

So, the combined areas of the four semicircles is [tex]241\pi[/tex].

The area of the rectangle is 60, so the total area is [tex]241\pi+60[/tex].

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