Solve using elimination 2x-y=-22 and -7x+y=67
(9,4)
(-9,-4)
(-4,9)
(-9,4)

Answer:

2

Step-by-step explanation:

first, add terms

8 + 5 + 12 + 4 + 5 + 8 + 7 = 49

seven terms, therefore we divide by 7

49/7 = 7

find distance

8-7= 1

7-5= 2

12-7=5

7-4=3

7-5=2

8-7=1

7-7=0

added together you get 14,

14/7 = 2

your answer is 2

hope this helps:)

Answer:

The median is usually preferred in these situations because the value of the mean can be distorted by the outliers.

Step-by-step explanation:

Answer:

If there is an outlier you should report the median. This is because the value of a mean can be distorted by the outliers. So, you can use the median when the distribution is not symmetrical.  

Step-by-step explanation:

Answer:

Step-by-step explanation:

Neither - one intersection

To assure the random selection of a sample population for determining the percentage of students who bring their lunch to school, a method known as simple random sampling can be employed.

Simple random sampling is a technique that provides each member of the population an equal chance of being selected for the sample. Here's an explanation of how simple random sampling can be implemented in this scenario:

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Answer:

извините, я не могу вам помочь, я не понимаю, я говорю по-английски, а не по-русски, поэтому я действительно не знаю, как вам помочь

Step-by-step explanation:

The dog is playing with his chew toy!

Answer:

Explanation

Step-by-step explanation:

In general, dogs can run 15-20 mph

humans can run 6-8 mph

You are significantly slower than the dog,

the fastest human is around 27 miles per hour, unfortunately, even if you were this fast

the fastest dog can run 40 miles per hour as an estimate

even house cats can run at 30 mph maximum if they really wanted,

You have no chance of outrunning this dog, and barely a chance of outsmarting it if that option was available, in conclusion, the dog is chasing you at a speed of around 30 mph about 6-7x more than your own speed with no chance of outrunning it(the dog).

When x = 13, the equation that is true is option D) 5(x - 9) = 20.

To determine which equation is true when x = 13, we can substitute the value of x into each equation and see which equation holds true. Let's go through each option:

A) 3(18 - x) = 67

Substituting x = 13:

3(18 - 13) = 67

3(5) = 67

15 = 67

The equation is not true when x = 13. Therefore, option A is false.

B) 4(9x) = 23

Substituting x = 13:

4(9*13) = 23

4(117) = 23

468 = 23

Again, the equation is not true when x = 13. Therefore, option B is also false.

C) 2(x - 3) = 7

Substituting x = 13:

2(13 - 3) = 7

2(10) = 7

20 = 7

Once again, the equation is not true when x = 13. Therefore, option C is false as well.

D) 5(x - 9) = 20

Substituting x = 13:

5(13 - 9) = 20

5(4) = 20

20 = 20

Finally, the equation is true when x = 13. Therefore, option D is true.

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Note: the translated questions is

X = 13, which equation is true?

Answer:

True

Step-by-step explanation:

Given data

Diameter =6 yards

Radius R= Diameter/2= 6/2  = 3 yards

R²=3*3=9square yards

Hence R^2 = 9square yards= True

Answer:

True.

Step-by-step explanation:

R² is radius to the second power. You were given the diameter, so the radius will be half of that diameter.

3 to the second power, (or 3 x3), is 9.

Answer:

If y and x have a proportional relationship, then we can write an equation of the form y = kx, where k is a constant of proportionality.

To find the value of k, we can use the given values of y and x:

y = kx

24 = k(12)

k = 2

Now that we know k, we can use the equation to find the value of y when x=16:

y = kx

y = 2(16)

y = 32

Therefore, when x=16, y=32.

Answer:

After the reverse stock split, Gene will own 120 shares of XYX Corporation.

To calculate the post-split market price per share, we can start by finding the total value of Gene's shares before the split:

Total value before split = 1,200 shares * $1.20 per share = $1,440

Since the reverse stock split is 1 for 10, the total number of shares outstanding will be reduced by a factor of 10, and the price per share will be increased by a factor of 10:

Total value after split = 120 shares * $12.00 per share = $1,440

Therefore, the post-split market price per share is $12.00.

Step-by-step explanation:

Answer:

b 3.13

Step-by-step explanation:

did this beofer

Answer:

B = 3.13

Step-by-step explanation:

The graph below shows it's peak/highest which takes about 1.5 seconds. Then it take about 3.13 seconds to hit the ground.

Therefore your answer is B - 3.13

20%

Here's a tip: Always start percentage calculating with dividing the current number by 10.

Answer:

The difference is 8.56 cm. ( the metre is longer than the yard).

Step-by-step explanation:

1 yard = 36 inches

= 36 * 2.54

= 91.44 cm

1 metre = 100 cm.

Answer:

Both calculated the slope as 2/9

Step-by-step explanation:

The journal could use a one-tailed hypothesis test with a significance level (α) of 0.05 to determine whether there is a significant difference between the proportion of women and men.

In statistics, the p-value is a measure of the evidence against the null hypothesis. It is the probability of observing a test statistic as extreme as, or more extreme than, the one calculated from the sample data, assuming that the null hypothesis is true. In other words, the p-value is the probability of obtaining the observed results, or more extreme results, if the null hypothesis were true.

Given by the question.

To test the claim that women perceive the gender equality problem to be much more compared to men, the journal could test the following hypothesis:

Hypothesis: The proportion of women who perceive gender equality to be a major problem in the workplace (W) is significantly greater than the proportion of men who perceive gender equality to be a major problem in the workplace (M).

H0: W = M (there is no significant difference in perception of gender equality between men and women)

Ha: W > M (women perceive gender equality to be a major problem more than men do)

who perceive gender equality to be a major problem in the workplace. They could calculate the p-value and compare it to α. If the p-value is less than α, they would reject the null hypothesis and conclude that the proportion of women who perceive gender equality to be a major problem in the workplace is significantly greater than the proportion of men who perceive it to be a major problem.

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without too much fuss, Check the picture below.

so we have roots at -5 and 1, and a point, incidentally the vertex, at (-2 , 9)

\(\begin{cases} x = -5 &\implies x +5=0\\ x = 1 &\implies x -1=0\\ \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{original~polynomial}{a ( x +5 )( x -1 ) = \stackrel{0}{y}}\hspace{5em}\textit{we also know that } \begin{cases} x=-2\\ y=9 \end{cases} \\\\\\ a ( -2 +5 )( -2 -1 ) = 9\implies -9a=9\implies a=\cfrac{9}{-9}\implies a=-1 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill {\Large \begin{array}{llll} -( x +5 )( x -1 ) =y \end{array}}~\hfill\)

The surface area of the rectangular prism is of 144 m².

A rectangular prism is a solid that has three dimensions:

It's surface area is given by:

\(S = 2(lw + lh + wh)\)

In this problem, the dimensions are: \(l = w = 6, h = 3\).

Hence:

\(S = 2[6(6) + 6(3) + 6(3)] = 144\)

The surface area of the rectangular prism is of 144 m².

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The number of acres of land are planted with oranges is 10

What is the size of the farmland?

The size of the entire farmland can be represented by X, which means that he planted coconuts of 3/8*X

The portion left after planting coconuts is expressed thus:

X=3X/8=5X/8

The portion planted with oranges is 4/5 of 5X/8

5X/8-(4/5*5X/8)=2.5

5X/8-4X/8=2.5

5X-4X/8=2.5

X/8=2.5

X=2.5*8

X=20 acres ( in all)

Portion planted with coconuts=3/8*20

Portion planted with coconuts=7.5

The number of acres left after planting coconuts=20-7.5

The number of acres left after planting coconuts=12.5

portion planted with oranges=4/5*12.5

portion planted with oranges=10 acres

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I think it is true but not for sure

Answer:

F

Step-by-step explanation:

The measure of the arc depends on the outside angle formed by the two

tangents, such that the given equations can be equated to find x.

Response:

The given parameters are;

m∠JKL = 8·x - 6

\(m\widehat{JML}\) = 25·x - 13

We have that the external angle formed by two tangents, ∠JKL , is given

by the far arc, near arc theorem or the secant, tangent outside angle

theorem as follows, as follows;

\(\widehat{JML} - \widehat{JL}\) = 2 × \(\mathbf{\angle {JKL}}\)

\(\widehat{JML} + \widehat{JL}\) = 360°

\(\widehat{JML} - \widehat{JL}\)  + \(\widehat{JML} + \widehat{JL}\)  = 2 × \(\mathbf{\widehat{JML}}\)

\(\widehat{JML} - \widehat{JL}\)  + \(\widehat{JML} + \widehat{JL}\) = 2 × \(\angle {JKL}\) + 360°

Which gives;

2 × \(\angle {JKL}\) + 360° = 2 × \(\widehat{JML}\)

2 × (8·x - 6) + 360° = 2 × (25·x - 13)

2 × (8·x - 6) + 360° - 2 × (25·x - 13) = 0

-34·x + 374° = 0

374° = 34·x

\(x = \dfrac{374}{34} = 11\)

\(m\widehat{JML}\) = 25 × 11 - 13 = 262

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Answer:

The probability that a defective ball bearing was manufactured on a Friday = 0.375

Step-by-step explanation:

Let the event of making a mistake = M

The event of making a precision ball bearing production on Monday = Mo

The event of making a precision ball bearing production on Tuesday = T

The event of making a precision ball bearing production on Wednesday = W

The event of making a precision ball bearing production on Thursday = Th

The event of making a precision ball bearing production on Friday = F

the conditional probability of making a manufacturing mistake in its precision ball bearing production is 4% on Tuesday, P(M|T) = 4% = 0.04

4% on Wednesday, P(M|W) = 0.04

4% on Thursday, P(M|Th) = 0.04

8% on Monday, P(M|Mo) = 0.08

and 12% on Friday = P(M|F) = 0.12

The Company manufactures an equal amount of ball bearings (20 %) on each weekday, Hence, the probability that a random precision ball bearing was made on a particular day of the week, is mostly the same for all the five working days.

P(Mo) = 0.20

P(T) = 0.20

P(W) = 0.20

P(Th) = 0.20

P(F) 0.20

The probability that a defective ball bearing was manufactured on a Friday = P(F|M)

P(F|M) = P(F n M) ÷ P(M)

P(F n M) = P(M n F)

P(M) = P(Mo n M) + P(T n M) + P(W n M) + P(Th n M) + P(F n M)

We can obtain each of these probabilities by using the expression for conditional probability.

P(Mo n M) = P(M|Mo) × P(Mo) = 0.08 × 0.20 = 0.016

P(T n M) = P(M|T) × P(T) = 0.04 × 0.20 = 0.008

P(W n M) = P(M|W) × P(W) = 0.04 × 0.20 = 0.008

P(Th n M) = P(M|Th) × P(Th) = 0.04 × 0.20 = 0.008

P(F n M) = P(M|F) × P(F) = 0.12 × 0.20 = 0.024

P(M) = P(Mo n M) + P(T n M) + P(W n M) + P(Th n M) + P(F n M)

P(M) = 0.016 + 0.008 + 0.008 + 0 008 + 0.024 = 0.064

P(F|M) = P(F n M) ÷ P(M)

P(F n M) = P(M n F) = 0.024

P(M) = 0.064

P(F|M) = P(F n M) ÷ P(M) = (0.024/0.064) = 0.375

Hope this Helps!

Answer:

Number of stars: 2+2+2+2+2+2

=6×2

Step-by-step explanation:

The stars are added in pairs of two. The pair that is 2+2+2+2+2 is five groups of 2 or 2 groups of five.

Since another pair of two wad added, there is one more pair. Instead of 5×2

Which means 5 groups of 4, it is not 6 groups of 2. I hope I helped you! Have a good day :3

The exact solutions of the qudratic equation 3x^2 - 6x + 2 = 0 are:

a. negative 1 plus or minus the square root of 3 divided by

3 (x = (-1 ± √3) / 3) .So, option a is the correct answer.

To find the solutions of the quadratic equation 3x^2 - 6x + 2 = 0, we can use the quadratic formula, which states that for an equation of the form ax^2 + bx + c = 0, the solutions are given by:

x = (-b ± √(b^2 - 4ac)) / (2a)

In this case, a = 3, b = -6, and c = 2. Substituting these values into the formula, we have:

x = (-(-6) ± √((-6)^2 - 4(3)(2))) / (2(3))

x = (6 ± √(36 - 24)) / 6

x = (6 ± √12) / 6

x = (6 ± 2√3) / 6

x = (3 ± √3) / 3

Therefore, the exact solutions of the equation 3x^2 - 6x + 2 = 0 are:

a. negative 1 plus or minus the square root of 3 divided by 3 (x = (-1 ± √3) / 3)

So, option a is the correct answer.

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Answer:

Effie Trinket is a fictional character, and is the escort of the District 12 tributes, accompanying them to the District, including Katniss Everdeen and Peeta Mellark, being an advisor to the pair. By the end of Mockingjay, she is the only Escort from the 74th and 75th Hunger Games alive after the Second Rebellion.

Answer:

10 2/3π or 33.51

Step-by-step explanation:

the volume of a sphere is 4/3πr^3

if the sphere has a diameter of 4 the radius is half the diameter so it would be 2. 2^3 = 8 now multiply 8 by 4/3 to get 10 2/3. now multiply by pi to get 10 2/3 π or 33.5103 which rounds to 33.51

Answer:

32π/3 cubic cm

Step-by-step explanation:

The set of equations best models the point of intersection of the arrow and the target is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

To find the equations, we have to look at two things.

The coordinates of the point are (35, 4.2), hence the best linear representation is:

y = 0.12x.

This leaves the first two options. The trajectory is concave down, which removes the second option, hence the correct option is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

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Answer:

A. y = –0.008x2 + 0.2x + 7 and y = 0.12x 

Step-by-step explanation:

I TOOK THE ALGEBRA EXAM and got 100 percent

A = 440

answer...

A

=

a

+

b

2

h

=

25

+

19

2

·

20

=

440

The following function models the population of rabbits, in thousands, in a state x years after 1990.

What is the approximate population of rabbits in 2012?

Count the number of years after 1990 to 2012.

That's 22 years so we have x = 22

Let us substitute x = 22 into the above function

That is approximately 120 thousands or 120,000