please help i will give extra points

Answer:

r = 1.4

Step-by-step explanation:

c = Pi * D

So c = 8.8 = Pi * D

So divide both sides by Pi

so 8.8 / Pi = 2.801 = D

Radius is half the Dimeter so divide 2.801 by 2 = 1.4

Answer:

D 12rad2 12rad2 24

Step-by-step explanation:

Answer:

There are 16 buses

Step-by-step explanation:

HOPE THIS IS HELPFUL!!!

Answer:

The beam of light is moving along the shoreline at a velocity of approximately 196 kilometers per second.

Step-by-step explanation:

The statement is described geometrically in the image attached below by means of a right triangle. All variables are described below:

[tex]OP[/tex] - Minimum distance between lighthouse and the straight shoreline, in kilometers.

[tex]PP'[/tex] - Distance along the straight shoreline, in kilometers.

[tex]\theta[/tex] - Angle of rotation of the lighthouse, in sexagesimal degrees.

To find the rate of change of distance along the straight shoreline ([tex]\frac{dPP'}{dt}[/tex]), in kilometers per minute, we use the following trigonometric relationship:

[tex]PP' = OP \cdot \tan \theta[/tex] (1)

Then, we differentiate this expression in time:

[tex]\frac{dPP'}{dt} = OP\cdot \dot \theta \cdot \sec^{2}\theta[/tex] (2)

Where [tex]\dot \theta[/tex] is the rate of change of the angle of rotation of the lighthouse, in radians per minute.

The angle at the given instant is calculated by (1): [tex]OP = 5\,km[/tex], [tex]PP' = 1\,km[/tex]

[tex]\theta = \tan^{-1} \left(\frac{PP'}{OP} \right)[/tex]

[tex]\theta \approx 11.310^{\circ}[/tex]

If we know that [tex]\dot \theta = 37.699\,\frac{rad}{min}[/tex], [tex]\theta \approx 11.310^{\circ}[/tex] and [tex]OP = 5\,km[/tex], then the rate of change is:

[tex]\frac{dPP'}{dt} \approx 196,035\,\frac{km}{min}[/tex]

The beam of light is moving along the shoreline at a velocity of approximately 196 kilometers per second.

Answer:

Simplify 3log3(-5) = undefined?

Step-by-step explanation:

Answer:

Between 25 and 50 lightbulbs were defective

Answer:

Step-by-step explanation:

We have

Find the  measure of angle x:

Bearing of the flight from Elgin to Canton is:

Answer:

235°

Step-by-step explanation:

Bearing: The angle (in degrees) measured clockwise from north.

The given scenario can be modeled as a triangle.

Given sides of the triangle:

As due north is at a right angle to due west, the angle in the right corner of the triangle is:

⇒ 90° - 44° = 46°

Use the Sine Rule to find angle y marked on the attached diagram (the angle opposite side b).

Sine Rule

[tex]\sf \dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}[/tex]

(where A, B and C are the angles and a, b and c are the sides opposite the angles)

[tex]\implies \sf \dfrac{\sin 46^{\circ}}{680}=\dfrac{\sin y}{545}[/tex]

[tex]\implies \sf \sin y= \dfrac{545\sin 46^{\circ}}{680}[/tex]

[tex]\implies \sf y= \sin^{-1} \left(\dfrac{545\sin 46^{\circ}}{680}\right)[/tex]

[tex]\implies \sf y=35.20682806...^{\circ}[/tex]

Interior angles of a triangle sum to 180°

⇒ x° + y° + 46° = 180°

⇒ x° + 35.2068...° + 46° = 180°

⇒ x° = 98.79317194...°

Consecutive Interior Angles Theorem

When a straight line intersects two parallel straight lines, the consecutive interior angles formed sum to 180°.  Therefore the angle between due north and side a of the triangle is:

⇒ 180° - 44° = 136°

To find the bearing of the flight from Elgin to Canton, find the angle labelled green on the attached diagram:

[tex]\implies \sf Bearing =136^{\circ}+ 98.79317194...^{\circ}[/tex]

[tex]\implies \sf Bearing = 234.7931719...^{\circ}[/tex]

[tex]\implies \sf Bearing = 235^{\circ}[/tex]

As bearings are usually given as a three-figure bearings, the bearing of the flight from Elgin to Canton is 235°.

Learn more about bearings here:

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Answer:

4 roses were red.

Step-by-step explanation:

(2/3)*6=4

Answer:

15m+5n

Step-by-step explanation:

5(3m+n) In this case you need to multiply. 5x3m is 15m; 5xn is 5n. 15m+5n

Answer:

Z = -1.789

P value = 0.036807

Step-by-step explanation:

Here

H0: p = 0.85 students will have access to the internet at home

Ha: p < 0.85 students will have access to the internet at home

As per the given data, out of 120 sampled students, 95 have access to internet at home

This is 79.17 % of the total number of sampled students.

The Z values is given by

[tex]Z = \frac{p-p'}{\sqrt{\frac{p(1-p)}{n} } }[/tex]

Substituting the given values, we get -

[tex]Z = \frac{0.7917-0.85}{\sqrt{\frac{0.85(1-0.85)}{120} } }\\Z = -1.789[/tex]

The sample proportion of 0.7917 is about -1.789 standard errors below the population proportion given in the null hypothesis.

Considering, result is significant at p < .05, the P-Value is .036807.

Answer:

2

Step-by-step explanation:

Rearrange to same form:

2y = -5x + 10

y = -5/2x + 10

ay = -5x + 4

Parallel lines have no intersection and solution, thus a = 2

Answer:

Step-by-step explanation:

For there to be no solution the lines must be parallel and have different y intercepts. To be parallel they must have the same slope.

Solving each for y

y=(10-5x)/2 and y=(4-x)/a

So the slopes are

-5/2 and -1/a, if they are equal

-5/2=-1/a

-5a=-2

a=2/5

By applying Cramer's rule as solution method, the solution of the linear system 3 · x + 2 · y = 5 and x + 3 · y = 4 is equal to the set (x, y) = (1, 1).

Determinants are constructions studied in linear algebra and related to matrices, one of the most common applications of determinants is the solution of linear equations, whose simplest form is known as the Cramer's rule.

Now we proceed to use this rule to get the solution of the linear system:  

[tex]x = \frac{\left|\begin{array}{cc}5&2\\4&3\end{array}\right| }{\left|\begin{array}{cc}3&2\\1&3\end{array}\right|}[/tex]

[tex]x = \frac{(5)\cdot (3)-(4)\cdot (2)}{(3)\cdot (3) -(1)\cdot (2)}[/tex]

x = 1

[tex]y = \frac{\left|\begin{array}{cc}3&5\\1&4\end{array}\right| }{\left|\begin{array}{cc}3&2\\1&3\end{array}\right|}[/tex]

[tex]y = \frac{(3)\cdot (4) - (5)\cdot (1)}{(3)\cdot (3) - (1)\cdot (2)}[/tex]

y = 1

By applying Cramer's rule as solution method, the solution of the linear system 3 · x + 2 · y = 5 and x + 3 · y = 4 is equal to the set (x, y) = (1, 1).

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Answer:

220m

Step-by-step explanation:

2 pie r=2*22/7*3.5=220 m

Answer:

sir u can try looking up on internet, we do not do homeworks/assignemnts for people

Step-by-step explanation:

Answer:

1 out of ever PUPILS need support

Step-by-step explanation:

4/24=1/6

Answer:

No, because the correlation coefficient is closer to 0 than to 1, which indicates a weak association between the variables.

Step-by-step explanation:

Answer is correct from Plato.

No, because the correlation coefficient is closer to 0 than to 1 , which indicates a weak association between the variables.

The precise metric used in a correlation analysis to quantify the strength of the linear relationship between two variables is the correlation coefficient. In a correlation report, the r stands for the coefficient.

Given:

Charlie found the relationship between the number of clues, x, and the time required to complete the puzzle, y, is modeled by the equation

y = 0.376x + 15.48,

and the correlation coefficient for the data is 0.219.

A correlation coefficient that is quite near to zero but may be either positive or negative suggests that there is little to no link between the two variables.

If the correlation coefficient is near to 1, it indicates that the two variables are positively correlated, with rises in one of the variables being accompanied by increases in the other.

And here, r = 0.219

Which is close to zero than one.

Therefore, the line is not best fit to be used to make reliable predictions about the time it takes Charlie to complete a crossword puzzle

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Answer:

96

Step-by-step explanation:

24*4=96

Answer:

hhffuutxu da ruzrxtoxotx suzs txyfyfxkfzfjzrzjrzurzi f2f jfizeyUrYsU

Step-by-step explanation:

that boi sus fo real nfcgxjfxiffxdkhdkydkgzxd lux kygksktskgxkhxyzjrztjztkxlyslyskt

Answer:

its 72

Step-by-step explanation:

Answer:

[tex]y =2[/tex]

[tex]x =3[/tex]

Step-by-step explanation:

Given

The attached parallelogram

Required

Find x and y

Opposite sides are equal

So:

[tex]PQ = SR\ and\ QR = PS[/tex]

This gives:

[tex]2y + 3 = y + 5[/tex] -- (1)

[tex]4x - 3 = 4y + 1[/tex] -- (2)

[tex]2y + 3 = y + 5[/tex]

Collect like terms

[tex]2y - y= 5 - 3[/tex]

[tex]y =2[/tex]

[tex]4x - 3 = 4y + 1[/tex]

Substitute [tex]y =2[/tex]

[tex]4x - 3 = 4 * 2 + 1[/tex]

[tex]4x - 3 = 9[/tex]

Collect like terms

[tex]4x = 3 + 9[/tex]

[tex]4x = 12[/tex]

[tex]x =3[/tex]

Answer:

a-8x+21y-10=19

b-3(x-6y)=6

c-(15-12)=4

Step-by-step explanation:

Answer:

AAS postulate

Step-by-step explanation:

Answer:

i hope it help u:))

Step-by-step explanation:

i think that it will be ASA postulate

Answer: Find the measures of an exterior angle and an interior angle given the number of sides of each regular polygon. Round to the nearest tenth, if necessary. 24 b 15, 345 24, 156 7.5, 172.5 15, 165​

Step-by-step explanation:  sum, S, of the measure of the interior angles of a polygon with n sides is: ... The sum of the interior angles of a 24 -gon is 3960. ... angles of a polygon is (n−2)⋅180 , where n is the number of sides. ... Each exterior angle measures 36024=15 . ... The sum of the 24 interior angles is then 24⋅165=3960 .

Answer:

A U B= 1,2,3,4,6,10,11

Step-by-step explanation:

because A union B is all number from set A and set B together without repeating