X +y=5, 3x-2y+5=0, this is the question​

Answer: 13.8

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

The equation is equal to 6-3x=8x-16. This gives 11x=22. x=2

10(c+5)=125

Step 1: Simplify both sides of the equation.

10(c+5)=125

(10)(c)+(10)(5)=125(Distribute)

10c+50=125

Step 2: Subtract 50 from both sides.

10c+50−50=125−50

10c=75

Step 3: Divide both sides by 10.

10c /10  =  75 /10

c =  15 /2

Answer:

8/15

Step-by-step explanation:

Unit rate is 8 / 15 acres per day.

"Work is defined as when force is applied on an object and it gets move in particular direction."

According to the question,

Group of workers plant  2/ 5 acres  in 3 /4 days

3 / 4 days = 2/ 5 acres

1 day =  \(\frac{2}{5}\) × \(\frac{4}{3}\)

⇒ 1 day = 8 / 15 acres

Hence, Unit rate is 8 / 15 acres per day.

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we have that

P+0.50=0.8554

so

P=0.3554

using the tables of z-score

For P=0.3554

the value of z is

Answer:

angle of elevation is at top and depresseion on bottom.

Step-by-step explanation:

far apart and height is calculated with more information

Answer:

Its A k = -18

Step-by-step explanation:

Because since angle 1 and 8 are the same your equation is 3k-7 = 5k+29. and then you solve and get k = -18.

Answer:

\(6^{-5}\)

Step-by-step explanation:

lmk if its right :)

According to the combination, The value of the Two blue pebbles is a 3 red pebbles and 1 yellow pebbles.

According to the statement

We have to find that the value of the combination.

So, For this purpose, we know that the

A combination could be a mathematical technique that determines the quantity of possible arrangements in an exceedingly collection of things where the order of the choice doesn't matter.

From the given information:

A red pebble is capable 3 yellow pebbles. A blue pebble is adequate a red pebble and a couple of yellow pebbles. Therefore, the blue pebbles will be:

= 3 yellow pebble + 2 yellow pebbles

= 5 yellow pebbles or 15 red pebbles

And

Two blue pebbles will be:

= 10 yellow pebbles

= 3 red pebbles and 1 yellow pebbles.

So, According to the combination, The value of the Two blue pebbles is a 3 red pebbles and 1 yellow pebbles.

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Disclaimer: This question was incomplete. Please find the content below.

Question:

A red pebble is equal to 3 yellow pebbles A blue pebble is equal to a red pebble and 2 yellow pebbles. A green pebble is equal to 3 red pebbles

Using the smallest number of pebbles possible and without using blue pebbles, what is the value in pebbles of 2 blue pebbles?

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Answer:

m^2 - m - 6

Step-by-step explanation:

(m-3)(m+2)

m^2 - 3m + 2m - 6

m^2 - m - 6

Answer:

m^2-m-6

Step-by-step explanation:

m(m+2)-3(m+2)

m^2+2m-3m-6

m^2-m-6

Thus, there is a 62.5% chance of getting at least one Canadian quarter when seven quarters are randomly picked from the bag.

To find the probability of getting at least one Canadian quarter when picking seven quarters from the bag, we can use complementary probability. This means we can find the probability of not getting any Canadian quarters and subtract it from 1.

The total number of quarters in the bag is 50.

The probability of getting at least one Canadian quarter out of seven quarters can be calculated as the complement of the probability of getting all U.S. quarters.

The probability of getting a U.S. quarter on the first draw is 46/50.

Since the coin is not replaced after each draw, the probability of getting a U.S. quarter on the second draw is 45/49, and so on.

Therefore, the probability of getting all U.S. quarters in seven draws can be calculated as follows:

= (46/50) x (45/49) x (44/48) x (43/47) x (42/46) x (41/45) x (40/44)

= 0.375

So, the probability of getting at least one Canadian quarter out of seven draws is:

1 - 0.375 = 0.625 or 62.5%

Therefore, there is a 62.5% chance of getting at least one Canadian quarter when seven quarters are randomly picked from the bag.

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Answer:

There are 8 legs for every 4 ears.

There are 2 legs for every 1 ear.

Step-by-step explanation:

The pig and the mouse have a total of 4 ears.

We can count to see that there are 8 legs for every 4 ears.

We want to find a ratio of legs to ears that is equivalent to 8:4

Hello There today we will solve your problem

\(\huge\red{\mid{\underline{\overline{\textbf{QUESTION}}}\mid}}\)

Solve for \(x\) please :-

\(3(9+x)-31=20\)

_____________________

To use the distributive property, we need to understand the formula to use it. This formula will ensure that you can easily solve any equation.

The distributive property is A(B + C) = AB + AC, where AB is the product of the values A and B and AC is the product of the values A and C.

First, let's notice that we are distributing a 2 into the parentheses, so we will mark this as our A value.

Then, our two values inside the parentheses are B and C respectfully.

_____________________

Apply Distributive property

\(3(9)+3(x)-31=20\\27+3x-31=20\\3x-31=-7\\3x=24\\x=8\)

This is the second time you've asked this question

Given an AR(1) process with drift X = α + βX_{t-1} + ε_t, where α = 2, β = 0.7, and ε_t ~ N(0, 1).To find the mean of the process, we note that the AR(1) process has a mean of μ = α / (1 - β).

So, the mean is 6.67, the variance is 5.41, the first three ACF are 0.68, 0.326, and 0.161, and the first three PACF are 0.7, -0.131, and 0.003.

So, substituting α = 2 and β = 0.7,

we have:μ = α / (1 - β)

= 2 / (1 - 0.7)

= 6.67

To find the variance, we note that the AR(1) process has a variance of σ^2 = (1 / (1 - β^2)).

So, substituting β = 0.7,

we have:σ^2 = (1 / (1 - β^2))

= (1 / (1 - 0.7^2))

= 5.41

To find the first three autocorrelation functions (ACF) and the first 3 partial autocorrelation functions (PACF), we can use the formulas:ρ(k) = β^kρ(1)and

ϕ(k) = β^k for k ≥ 1 and

ρ(0) = 1andϕ(0) = 1

To find the first three ACF, we can substitute k = 1, k = 2, and k = 3 into the formula:

ρ(k) = β^kρ(1) and use the fact that

ρ(1) = β / (1 - β^2).

So, we have:ρ(1) = β / (1 - β^2)

= 0.68ρ(2) = β^2ρ(1)

= (0.7)^2(0.68) = 0.326ρ(3)

= β^3ρ(1) = (0.7)^3(0.68)

= 0.161

To find the first three PACF, we can use the Durbin-Levinson algorithm: ϕ(1) = β = 0.7

ϕ(2) = (ρ(2) - ϕ(1)ρ(1)) / (1 - ϕ(1)^2)

= (0.326 - 0.7(0.68)) / (1 - 0.7^2) = -0.131

ϕ(3) = (ρ(3) - ϕ(1)ρ(2) - ϕ(2)ρ(1)) / (1 - ϕ(1)^2 - ϕ(2)^2)

= (0.161 - 0.7(0.326) - (-0.131)(0.68)) / (1 - 0.7^2 - (-0.131)^2) = 0.003

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Answer:

144 square foot

Step-by-step explanation:

Area of rectangle: Length × breadth

Area of rectangle = 16 × 9

                             = 144 square foot

Answer:

The surface area of a solid object like a paperweight is calculated by adding the areas of all its faces. In this case, the paperweight is like a hexagonal pyramid, with a hexagonal base and six triangular sides. The base area has already been given as 93.6 square centimeters.

The six triangles are isosceles triangles, since the base of each triangle is a side of the hexagon, and the slant height is the same for each triangle.

The area of an isosceles triangle is given by the formula:

Area = 1/2 * base * height

For these triangles, the base is 6 cm (side length of the hexagon), and the height is the slant height, which is 12 cm.

So the area of one triangle is:

Area = 1/2 * 6 cm * 12 cm = 36 square cm

Since there are six such triangles, the total area of the triangular faces is:

6 * 36 square cm = 216 square cm

So, the total surface area of the paperweight is the area of the base plus the area of the six triangular faces, or:

93.6 square cm (base) + 216 square cm (sides) = 309.6 square cm

So the surface area of the paperweight is 309.6 square cm.

According to the graph, it can be inferred that 12 cheese pizzas and 4 pepperoni pizzas were purchased.

To calculate the number of pizzas of each flavor that the school band bought, we must take into account the graph. It specifies that for every 3 cheese pizzas, 1 pepperoni pizza was purchased. Additionally, it is reported that the band bought 12 cheese pizzas.

Based on the above, we need to divide the total number of cheese pizzas the band bought by the number of pizzas each pizza group has (3 cheese, 1 pepperoni). According to the above, the result would be 4.

So, we must multiply the number of pepperoni pizzas by the result of the previous operation. That would not result in 4, meaning 4 pepperoni pizzas were purchased.

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Answer:

i try my best to find the answer if i can

Step-by-step explanation:

Answer: 1. x^2+x-6

2. x^2-8x-48

3. x^2+7x+12

4. x^2+13x+42

5. x^2+17x+72

6. x^2-25

7. x^2-9

8. x^2+20x+100

9. x^2+10x-24

10. x^2+x-12

Step-by-step explanation:

I got the first 10 for you hope this helps :)

144

If you add 9+6+9 is will give you 24 than you would times that by 6. So 9+6+9= 24 next 24×6=144.

Point a. To solve the exercise you can first make a drawing to understand the situation.

Since the skier starts from the East of the center of the ski trail and reaches the East of the center of the ski trail again, then finding the distance that the skier travels is equivalent to finding the perimeter of the ski trail.

The formula to find the perimeter of a circle is

So, in this case, you have

Answer:

9/5 ft.

Step-by-step explanation:

9/10 + 9/10 = 18/10 = 9/5

Answer:

D

Step-by-step explanation:

The area of the expanded rectangular patio is: D. (0.5l)(0.2w)

Area = (length)(width)

Given the following:

New length = 50% of l = 0.5l

New width = 20% of w = 0.2w

Area of the expanded rectangular patio = (0.5l)(0.2w)

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The error occurred in step 1

The justification for solving the equation -2(t + 3) + 4 = 12 + 6t is below;

2 |a + 1| = 5

Step 1:

2 |a + 1| = 5 or 2 |a + 1| = -5

2a + 2 = 5 or 2a + 2 = -5

combine like terms

2a = 5 - 2 or 2a = -5 - 2

2a = 3 or 2a = -7

divide both sides by 2

a = 3/2 or a = -7/2

2.

-2(t + 3) + 4 = 12 + 6t original equation

-2t - 6 + 4 = 12 + 6t Distributive property

-2t - 2 = 12 + 6t Addition property of equality

-2t - 2 - 6t = 12 + 6t - 6t Subtraction property of equality

-8t - 2 + 2 = 12 + 2 combine like terms

-8t / -8 = 14 / -8 Division property of equality

t = 14/-8 solution

t = 7/-4 simplified solution

Therefore, the equation -2(t + 3) + 4 = 12 + 6t has a simplified solution of t = 7/-4

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The function value that us greater is with estimated value of 96

The estimated value is the value read from the graph which gives the accumulated value for each of the line

The first line gives an estimated value of

10+14+18+19+28 = 89

The second graph gives gives an estimated value of

17+18+19+20+22 = 96

Therefore comparing the two graphs, the one with 96 has the greater value

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Answer:

x = -2

Step-by-step explanation:

m(x) = 4x+15; m(x) = 7

7= 4x+15

7-4x=15

-4x=15-7

-4x=8 / :(-4)

x= -2

The Values of (a+b)ab are undefined.

Given that, a = 3an and db = -2We need to find the values of (a+b)

Now, we have a = 3an... equation (1)Also, we have db = -2... equation (2)From equation (1), we get: n = 1/3... equation (3)Putting equation (3) in equation (1), we get: a = a/3a = 3... equation (4)Now, putting equation (4) in equation (1), we get: a = 3an... 3 = 3(1/3)n = 1

From equation (2), we have: db = -2=> d = -2/b... equation (5)Multiplying equation (1) and equation (2), we get: a*db = 3an * -2=> ab = -6n... equation (6)Putting values of n and a in equation (6), we get: ab = -6*1=> ab = -6... equation (7)Now, we need to find the value of (a+b).For this, we add equations (1) and (5),

we get a + d = 3an - 2/b=> a + (-2/b) = 3a(1) - 2/b=> a - 3a + 2/b = -2/b=> -2a + 2/b = -2/b=> -2a = 0=> a = 0From equation (1), we have a = 3an=> 0 = 3(1/3)n=> n = 0

Therefore, from equation (5), we have:d = -2/b=> 0 = -2/b=> b = ∞Now, we know that (a+b)ab = (0+∞)(0*∞) = undefined

Therefore, the values of (a+b)ab are undefined.

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The equation that has imaginary solutions is the one that involves taking the square root of a negative number. In this case, the equation \(\((x+4)^2+5=0\)\) has imaginary solutions.

To see why, let's solve the equation:

\(\((x+4)^2+5=0\)\)

Expanding the square:

\(\(x^2 + 8x + 16 + 5 = 0\)\)

Combining like terms:

\(\(x^2 + 8x + 21 = 0\)\)

This is a quadratic equation, but the discriminant \((\(b^2 - 4ac\))\)determines the nature of the solutions. In this case, the discriminant is \(\(8^2 - 4(1)(21) = 64 - 84 = -20\).\)

Since the discriminant is negative, the equation has imaginary solutions.

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Answer:D

Since the bottom half the triangle is shaded the width becomes 4 and the length stays the same. 4x14= 56, or 1/2(14x8)

Answer:

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Step-by-step explanation:

Answer:

-9=n

Step-by-step explanation:

-13=4-n

+4 to both sides to get n by its self

-13+4=9

-13-4=9

-9=n