For the triangle shown on the left,

find the length of the side labeled x

find the measure of angle A in degrees

Answer:

This equation is NOT proportional

Step-by-step explanation:

A proportional version of this equation would be Y=7x

B. 3:14

Hope that helped:)

Answer:

C.    The relationship is linear; y + 2 = (-5/4)x - 11.25

Step-by-step explanation:

If the relationship f is linear then its graph is a line D of equation y = ax+b

(-9 ,-2)∈D ⇔ -2 = -9a + b  (1)

(-5 , -7)∈D ⇔ -7 = -5a + b (2)

(2)-(1)⇒ -5 = 4a ⇒ a = -5/4

-2 = -9a + b  ⇒ -2 = -9(-5/4) + b ⇒  2 +45/4 = -b ⇒ b = -13.25

then

D : y = (-5/4)x - 13.25 ⇒ y + 2 = (-5/4)x - 11.25

since (-1,-12) and (3,-17) are points of D (easy to check)

then it’s a linear relationship

Answer:

x<-5

Step-by-step explanation:

Answer:

Step-by-step explanation:

x-5/2<-5

divide x-5 by 2

1/2x-2.5<-5

factor out the -2.5 by adding it to both sides

1/2x< -2.5

divide both sides by 1/2

x=-1.25

The area of the indicated region of the standard normal distribution is 0.3520.

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation[/tex]

From the normal distribution table, the region where z < −0.38 = P(z < -0.38) = 0.3520

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Answer:yesStep-by-step explanation:

yes

Answer:

y=120x

Step-by-step explanation

i got it right

Answer:

Its ASA!

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the intensity is y and the distance is x.

Their relationship is:

Let's substitute given values and find the value of k:

Our equation becomes:

Now find the value of y when x = 4:

The ticket price that would maximize the total revenue would be $ 23.

Given that a football team charges $ 30 per ticket and averages 20,000 people per game, and each person spend an average of $ 8 on concessions, and for every drop of $ 1 in price, the attendance rises by 800 people, to determine what ticket price should the team charge to maximize total revenue, the following calculation must be performed:

Therefore, the ticket price that would maximize the total revenue would be $ 23.

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Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

[tex]12*\frac{3}{4}\\9 yards[/tex]

Answer:

[tex]x<-\frac{31}{2}[/tex]

Step-by-step explanation:

Answer:

The answer is (5x - 3) (25x² + 15x + 9)

Step-by-step explanation:

125x³ - 27

5 × 5 × 5 × x × x × x - 3 × 3 × 3

Rewrite 125x³ as (5x)³.

(5x)³ - 27

Rewrite 27 as (3)³.

(5x)³ - (3)³

Here, Both terms are perfect cubes, factor using the difference of cube formula,

a³ - b³ = (a - b) (a² + ab + b²)

where,

a = 5x

b = 3

Now,

(5x - 3) [(5x)² + (5x)(3) + (3)²]

Now, Simplify

(5x - 3) (25x² + 15x + 9)

Thus, The answer is (5x - 3) (25x² + 15x + 9)

-TheUnknownScientist 72

Answer:

y = 22

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the angles in the lower triangle and equate to 180°

∠ 1 + 19° + 41° = 180°

∠ 1 + 60° = 180° ( subtract 60° from both sides )

∠ 1 = 120°

∠ 1 and ∠ 2 are vertically opposite angles and are congruent , so

∠ 2 = 120°

Sum the angles in the upper triangle and equate to 180

y + 120 + 38 = 180

y + 158 = 180 ( subtract 158 from both sides )

y = 22

Answer:

B- 20

D- no solutions

Step-by-step explanation:

Cuz its light work lol

Answer:

For the first question, the answer is x=20 so the answer is B

For the second I don't know, sorry :(

Step-by-step explanation:

Answer: 0.2588

Step-by-step explanation:

Answer:

Polynomial Degree: 6 Leading Term: 7y^6 Leading Coefficient: 7

Step-by-step explanation:

Thank me later

Answer:

6

Step-by-step explanation:

mulyiplying is for finding out the area

Answer:

160,000

Step-by-step explanation:

Estimations like this usually involve rounding to easy numbers to multiply. You could do this in a number of ways depending on your ability to keep track of factors in your head, but the easiest way (and what I assume your teacher is looking for) is to round to the nearest, largest-power-of-ten, which in this case is the hundreds. 786 is closest to 800, and 217 is closest to 200, and 200*800 is 160,000. No calculator required is the key. You can also be slightly more sure that this is reasonable because you rounded up for one and down for the other, approximately by the same amount, too.

Answer:

1.

Step-by-step explanation:

0.01x100.

think of it as a decimal turning into a percent. it will be 1

Answer:

8

Step-by-step explanation:

You can set up a proportion to find your missing side.

Let x be the missing side.

[tex]\frac{12}{x} =\frac{18}{12}[/tex]

Cross multiply and solve for x.

144= 18x

8=x

Answer:

8 mm

Step-by-step explanation:

[tex]\frac{12}{18} = {?}{12} \\\\ 18×? = 144 \\\ ? = \frac{144}{18} \\\\ ? = 8[/tex]

I hope I've helped you.

Answer:

3 + 0.6 + 0.01 + 0.004

Answer:

C

Step-by-step explanation:

2q.20+4= 40q+4 not equivalent to 2q+24

Answer:

Her yearly salary is $18,000 (c)

Answer:

m∠SVT = 79

Step-by-step explanation:

8y-33 = 5y+9

y = 14

5(14)+9 = 79

I hope this helps!

Answer:

length = 4

Step-by-step explanation:

A rhombus has four equal sides so the perimeter equals 4 sides.

Let x = length of a side

Perimeter of the rhombus is 7 times the length of the side decreased by 12

     4x = 7x - 12

    -4x = -4x    

      0 = 3x - 12

     +12 =    +12

       12 =  3x

      12/3 = 3/3x

        4 = x  

Answer:

1.5 Feet

Step-by-step explanation:

Answer:

3 ft

Step-by-step explanation:

Divide 12 ft by 8 pieces.

12 ÷ 8 = 3

Answer:

Step-by-step explanation:

x - y = 8

2*y = x + 4  Reverse the equation

x + 4= 2y    Subtract 4 from both sides

x = 2y - 4

Put that value for x in the first equation

2y - 4 - y = 8        Combine like terms on the ledt

y - 4 = 8               Add 4 to both sides

y = 8 + 4

y = 12

x - y = 8

x - 12 = 8           Add 12 to both sides

x = 8 + 12

x = 20

Applying the steps to find the confidence interval of a proportion, it is found that the 90% confidence interval for the proportion of adult Twitter users that get at least some news on Twitter is (0.4892, 0.5356).

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]\frac{1+\alpha}{2}[/tex].

From a SRS of 1251 adult Twitter users, 641 of them get at least some news on Twitter, hence:

[tex]n = 1251, \pi = \frac{641}{1251} = 0.5124[/tex]

90% confidence level

So [tex]\alpha = 0.9[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so [tex]z = 1.645[/tex].  

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5124 - 1.645\sqrt{\frac{0.5124(0.4876)}{1251}} = 0.4892[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5124 + 1.645\sqrt{\frac{0.5124(0.4876)}{1251}} = 0.5356[/tex]

The 90% confidence interval for the proportion of adult Twitter users that get at least some news on Twitter is (0.4892, 0.5356).

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Answer:

60km/h

Step-by-step explanation:

90 ÷ 1.5

= 60

60 km/h