-2x-11y=26;3x-y=24 I have to write it in elimination method

Using the dot plot concept, it is found that the left plot on the bottom row shows an unfair data-generating process.

The dot plot shows the number of times each measure appears in the data-set.

In this problem, each trial has 5 possible outcomes and there are 20 trials, hence each number should appear 20/5 = 4 times.

On the left plot of the bottom row, outcomes 1 and 5 appear 7 times, while outcomes 2, 3 and 4 appear 2 times, which are the furthest values from 5, hence it is an unfair data-generating process.

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Answer:

Step-by-step explanation:

[tex]\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=18\\ \theta =40 \end{cases}\implies \begin{array}{llll} A=\cfrac{(40)\pi (18)^2}{360}\implies A=36\pi \\\\\\ A\approx 113.097 ~m^2 \end{array}[/tex]

Answer:

36π (m²) or ≈ 113.14 m²

Step-by-step explanation:

[tex]A_{circle}[/tex] = [tex]\pi r^{2}[/tex]

[tex]A_{sector}[/tex] = x

[tex]\frac{360^o}{40^o}[/tex] = [tex]\frac{18^2 \pi }{x}[/tex]

9 = [tex]\frac{18^2 \pi }{x}[/tex]

x = 36π

or

x ≈ 36 × [tex]\frac{22}{7}[/tex] ≈ 113.14 m ²

Answer:

20

Step-by-step explanation:

2•[(6+1)2+1]

2•[(7)3]

2•10

• means times

2×10

20 answer

Answer:

p

Step-by-step explanation:

2 • [(6 + 1)2 + 1]

First The Brackets :

[(6 + 1)

->>> 6 + 1

= 7

But there's a bracket around 6 + 1 so now we multiply

-->>> [(7)2 + 1]

->>> 7 x 2

= 14

So now we add :

-->>> 14 + 1

= 15

And now we multiply:

->>> 15 • 2

--->>> 30

Hope it helps :))))

Answer:

8th fall- 203 9th fall-95

Step-by-step explanation:

the 9th total is 500

8th fall is 203

9th fall is 95

The rate of the current is 2.03 mph if the small motorboat travels 8mph in still water. It takes 3 hours longer to travel 44 miles going upstream than it does going downstream.

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex]  Where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

Let's suppose the rate of the current  = r

The time it takes to go downstream + 4 hours   = time to go upstream

As we know the:

[tex]\rm Time = \dfrac{Distance}{ Rate }[/tex]

Now,

[tex]\rm \dfrac{44}{ (8 + r)} + 3 = \dfrac{44}{ (8 - r)}[/tex]

After solving:

[tex]\rm \dfrac{44}{ (8 - r)}-\dfrac{44}{ (8 + r)} =3[/tex]

After cross multiplication

44(8+r) - 44(8-r) = 3(8+r)(8-r)

88r = 3(64 - r²)

3r² + 88r - 192 = 0

After solving the above quadratic equation, we get:

r = 2.03 or

r=−31.37 (reject as it is negative)

So, the r  =2.03 mph

Thus, the rate of the current is 2.03 mph if the small motorboat travels 8mph in still water. It takes 3 hours longer to travel 44 miles going upstream than it does going downstream.

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Answer:

D

Step-by-step explanation:

I hope this helps! If it does, please mark me Brainliest! Thanks in advance!

Answer:

if 10 minutes was added each day 30 minutes is how long it would extend in 3 days

Answer:

5/20, 2/9, 21%, 8%

Step-by-step explanation:

2/9 = 0.22

21% = 0.21

5/20 = 0.25

8% = 0.08

0.25>0.22>0.21>0.08

mark brainliest please!

Answer:

the answer is letter C.

I hope this can help you!

Answer:

6 1/3

Step-by-step explanation:

You just have to see how many times it goes into it

Answer:

Has infinite solutions

Explanation:

-x + 5y = -3..... eq1

2x - 10y = 6 .... eq2

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

make x the subject in equation 1

-x + 5y = -3

-x = -3 - 5y

x = 5y + 3

========= insert this in equation 2

2(5y + 3) - 10y = 6

10y + 6 -10y = 6

6 = 6

So, Has infinite solutions as L.H.S = R.H.S

Answer:

The answers would be D and C.

Hope this helps!

Answer:

294 inches squred

Step-by-step explanation:

3 x 10 = 30

3 x 9 = 27

10 x 9 = 90

2(30) + 2(27) + 2(90) = 294

Answer:

4, -4

Step-by-step explanation:

I think the first equation is ax + 3y = 2, not az + 3y = 2.

ax + 3y = 2

4x + 5y = 6

To use elimination, you need the coefficients of a to either add to zero, or to have a difference of zero if you subtract them.

a + 4 = 0

a = -4

a - 4 = 0

a = 4

Answer: a must be 4 or -4.

Answer:

-4 and 4

Step-by-step explanation:

Given linear system:

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

[tex]4x+5y=6[/tex]

In order to solve the given linear system by elimination without multiplying first, [tex]a[/tex] must be either -4 or 4.  That way, when you add or subtract the equations, the variable [tex]x[/tex] will be eliminated.

when [tex]a = -4[/tex]:

[tex]\large\begin{array}{ l r c c l r}& -4x & + & 3y & = & 2\\+ & 4x & + & 5y & = & 6\\\cline{1-6}& & & 8y & = & 8\\\cline{1-6}\end{array}[/tex]

when [tex]a = 4[/tex]:

[tex]\large\begin{array}{ l r c c l r}& 4x & + & 3y & = & 2\\- & 4x & + & 5y & = & 6\\\cline{1-6}& & & -2y & = & -4\\\cline{1-6}\end{array}[/tex]

Answer: -a^2+c\left(a-c\right)-n^2a=3\quad :\quad c=-\frac{-a+\sqrt{-3a^2-4an^2-12}}{2},\:c=-\frac{-a-\sqrt{-3a^2-4an^2-12}}{2}

Step-by-step explanation: YW! plese mark branlest!

Answer:

9/12

Step-by-step explanation:

Answer:

The answer is

9 over 12

9/12

Using the discrete distribution, it is found that the probability that it offers an even number of honors classes is of 0.68.

The distribution for the number of honors classes the school offers is given by:

Hence the probability of an even number is given by:

P(even) = P(X = 0) + P(X = 2) + P(X = 4) = 0.38 + 0.25 + 0.05 = 0.68.

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The equation for the translation of y = 5/x is y = 5/(x+7) + 7 if that has the asymptotes x= -7 and y= 7

It is a curve in two-dimensional geometry having two parts, they both are symmetric. In other words, It can be defined as the number of points in the two-dimensional geometry that have a constant difference from that point to two fixed points in the plane.

We have:

[tex]\rm y = \dfrac{5}{x}[/tex]

Vertical asymptotes x= -7 and

Horizontal asymptotes y= 7

After translation:

[tex]\rm y = \dfrac{5}{x+7}+7[/tex]

Thus, the equation for the translation of y = 5/x is y = 5/(x+7) + 7 if that has the asymptotes x= -7 and y= 7

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Answer: Heyaa! ~

Your Answer is... x = 5 ± √ 13/ 2

Step-by-step explanation:

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

Hopefully this helps you!

-Matthew ^^

Answer:

A cube with a side length of 3 inches has a volume of 27 cubic inches.

Step-by-step explanation:

yes

Answer:

x = 2

Step-by-step explanation:

3x + 5y = -9 ___(1)

y = 2x - 7

Substituting y's value in (1) ..

3x + 5( 2x - 7) = -9

3x + 10x -35 = -9

13x = -9 + 35

13x = 26

x = 26/13

x = 2

Answer:

0.17

Step-by-step explanation:

The probability for purchasing 2 tickets at a time can be given as 0.17. The correct option is (A).

Probability is the branch of Mathematics that deals with the measurement of the chance of occurrence of a random event.

The probability of any event always lie in the close interval of 0 and 1 [0,1].

Suppose X be the event to represent the number of tickets in purchase.

Then,  as per the question distribution table can be formed as follows,

The number of tickets (X)                                 P(X) Probability

            1                                                                      0.17

            2                                                                     0.55

            3                                                                     0.20

            4                                                                     0.06

            5                                                                     0.02

Thus, the probability of selecting less than two tickets can be obtained as,

P(X < 2) = P(X = 1)

⇒ 0.17

Hence, the probability for a purchase to have less than two tickets is given as 0.17.

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Answer
2 (9 x + 4 y)

Hope this helps :)

Answer:

sqrt12

Step-by-step explanation:

being given any problem like this, let's use the form y√x, y representint 2, and x is 3, but it's generalized

in order to find the unsimplified √ we would do 2(yx). Which in this case is 12

The maximum number of tourists in the third week will be maximum in the numberville city.The solution of f(x)=h(x) will be x(5,2).

The equation is actually a relationship between the numbers and the variables.

To calculate the number of the tourists in the third week we will put the value 3 in every function:

[tex]f(x)=x^2+5x+10=(3)^2+(3\times 3)+10=29\\\\\\g(x)=3^x=3^3=27\\\\\\h(x)=10x=10\times 3=30[/tex]

So we can see that the function third h(x) numberville city is having a maximum number of tourists.

The solution of f(x)=h(x) will be calculated as:

[tex]x^2-3x+10=10x\\\\\\x^2-7x+10=0\\\\\\x^2-5x-2x+10=0\\\\\\x(x-5)-2(x-5)=0\\\\\\x=5,2[/tex]

Hence the solution of f(x)=h(x) will be x(5,2).

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Tan65°=h/75m

2.1445 × 75 = h

h = 160.83

Step-by-step explanation:

This is very very simple

Answer:

Question 1

Cost per 10,000 Popsicle sticks = $725.20

⇒ Single Popsicle stick = 725.20 ÷ 10000 = $0.07 (nearest cent)

Question 2

Cost per 1,000 motherboards = $8,730

⇒ Cost of Single motherboard = 8730 ÷ 1000 = $8.73

Cost per 10 motherboards = $100

⇒ Cost of Single motherboard = 100 ÷ 10 = $10

Difference = 10 - 8.73 = $1.27

Question 3

Create a table with the cost per 1 unit:

[tex]\begin{array}{| c | c | c | c |}\cline{1-4} \sf PART & \sf COST\:PER\:1\:of\:10 & \sf COST\:PER\:1\:of\:1000 & \sf COST\:PER\:1\:of\:10000\\\cline{1-4} \sf Motherboard & \$10.00 & \$8.73 & \$7.04 \\\cline{1-4} \sf Processor & \$5.00 & \$1.25 & \$0.63 \\\cline{1-4} \sf Popsicle & \$0.10 & \$0.09 & \$0.07 \\\cline{1-4} \sf Motor & \$4.50 & \$0.18 & \$0.04 \\\cline{1-4} \sf Sensor & \$6.30 & \$4.54 & \$3.18 \\\cline{1-4} \sf Small\:gear & \$1.00 & \$0.80 & \$0.70 \\\cline{1-4} \end{array}[/tex]

From inspection of the table, the Motor saves the most money per unit when 10,000 is bought, since the difference between the cost of 1 unit is the greatest for this part.

Question 4

Cost of 1100 motherboards

= cost of 1000 +  cost of 10 x 10

= 8730 + 100 x 10

= 8730 + 1000

= $9,730

Question 5

Cost of 12050 sensors

= cost of 10000 + cost of 1000 x 2 + cost of 10 x 5

= 31752 + 4536 x 2 + 63 x 5

= 31752 + 9072 + 315

= $41,139

Work Shown:

sand/gravel = 5/3

x/750 = 5/3

3x = 750*5

3x = 3750

x = 3750/3

x = 1250