whats is 1+1

*i cant figure it out *

Answer:a plus plumbing charges 60 for each hour of work plus a one time fee of 80 dollars

quality plumbing charges 50 for each hour of work plus one time fee of 150

t or f quality plumbing charges the least for 5 hours of work false

Step-by-step explanation:

I think this is correct, no time to explain if you need this answer fast

First, we want to note two things:

We can describe this with an inequality:  x ≥ -10
Be sure you use ≥ and not >, since -10 is included.

We can describe this with interval notation: [ -10, infty )
Be sure you use [ and not ( on -10, since -10 is included.

You can also use set-builder notation: { x | x ≥ -10 }

Answer:

a

Step-by-step explanation:

Answer:

y = -3x + 2

Step-by-step explanation:

To find the slope of an equation you can do (y2-y1)/(x2-x1). Plug the values in from the equation and you get (-1+7)/(1-3), or 6/-2. This means the slope is -3. Then you plug the values of y and x into an equation y = -3x + b, and you get -1 = (-3)1 + b. Solve for b. -1 = -3 + b, (add 3 to each side) 2 = b. Then plug b back into your equation and you get y = -3x + 2

Answer:

-3x+2=y

Step-by-step explanation:

u need to find the slope intercept formula which mx+b=y

m=slope

b=y-intercept

first u should find the slope which is y2-y1/x2-x1

point 1:(1,-1)

point 2:(3,-7)

-7+1/3-1=-6/2=-3

m=-3

now replace the variables

-3(1)+b=-1

-3 times 1=-3

-3+b=-1

add 3 to both sides

b=2

now the equation is -3x+2=y

you do 479 x 2 = 958 there is your answer your welcome

Answer:

45800 millilitres

Step-by-step explanation:

1 litre = 1000 millilitres

So, 45.8 litre

= 45.8 × 1000 millilitres

= 45800 millilitres

Answer:

45.8 l is equal to 45800 ml

Step-by-step explanation:

carry the decimal by three places

45.8

458.0

4580.

45800.

The maximum value of f(x,y) on the unit of circle is \(\frac{48 \sqrt{21}}{2,401}\).

The full question is in the attachment. From the unit circle

Substitute to f(x,y)

f(x,y) = x³y⁴ = x³ (y²)² = x³ (1 - x²)²

f(x,y) = x³ (1 - 2x² + x⁴)

f(x,y) = x³ - 2x⁵ + x⁷

df/dx = 3x² - (2 × 5)x⁴ + 7x⁶

df/dx = 3x² - 10x⁴ + 7x⁶

df/dx = x² (3 - 10x² + 7x⁴)

To find the maximum or minimum value, the derivated equals zero.

0 = x² (7x⁴ - 10x² + 3)

0 = x² (x - 1) (x + 1) (7x² - 3)

7x² - 3 = 0

Using ABC formula

\(x_{1,2} \:=\: \frac{-b \pm \sqrt{b^2 \:-\: 4ac}}{2a}\)

\(x_{1,2} \:=\: \frac{-0 \pm \sqrt{0^2 \:-\: (4 \times 7 \times - 3)}}{2 \times 7}\)

\(x_{1,2} \:=\: \frac{\pm \sqrt{4 \times 21)}}{14}\)

\(x_{1,2} \:=\: \frac{\pm 2 \sqrt{21}}{14}\)

\(x_{1,2} \:=\: \frac{\pm \sqrt{21}}{7}\)

The maximum value from x₁.

The minimum value from x₂.

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The complete statements for the angles as in the task content are:

It follows from the task content that the arrangement involves two parallel lines q and s which are cut by transversal line r.

On this note, according to the description in the task content, the angles formed at the intersections are related as follows;

Angles 1 and 5 are congruent because they are

corresponding angles.

Angles 4 and 6 are congruent because they are alternate angles.

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Answer:

yeah I think is 9.13

Step-by-step explanation:

Answer:

the prime factorization of 171 can be written as 32 × 191 where 3, 19 are prime.

mark me as brainliest

a. To determine if there are any arbitrage opportunities in the market, we need to check if the payoff matrix A is linearly dependent on the price vector S.

If A and S are linearly dependent, then there are no arbitrage opportunities. If they are linearly independent, we can construct an arbitrage portfolio.

In this case, we observe that the rank of the matrix A is 2, which is less than the number of columns (3). Therefore, A and S are linearly dependent, indicating that there are no arbitrage opportunities in this market.

b. To find the no-arbitrage price of the security with payoff b, we need to determine the weights of the basis assets that replicate the payoff vector b. We can do this by solving the equation A * x = b, where A is the payoff matrix and x is the vector of weights.

The equation, we get the following system of equations:

x₁ + x₃ = 5

3x₁ + 2x₂ + x₃ = 4

Solving this system of equations, we find x₁ = 2, x₂ = -1, and x₃ = 3.

Therefore, the no-arbitrage price of the security with payoff b is given by the dot product of the weights and the price vector S:

No-arbitrage price = (2 * 1) + (-1 * 2) + (3 * 1.5) = 3 + (-2) + 4.5 = 5.5

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Answer:

1. 7.8

2. -1/5

3. -16.2

4. -25/8

Step-by-step explanation:

-

Answer:

7.8

-0.2

-16.2

-3.125

I really hope it helps

ps: from ultra instinct Giga Chad

Increasing the confidence level would increase the margin of error of a confidence interval, all other things remaining the same. This is because a higher confidence level corresponds to a wider interval so larger range of possible values.

In order to maintain the same level of precision, a wider interval requires a larger margin of error to account for the increased variability in the data.  For example, a 95% confidence interval would have a smaller interval width than a 99% confidence interval, as the latter requires a larger range of possible values to be included in the interval.

As a result, increasing the confidence level would increase the precision and accuracy of the estimate but at the cost of a larger margin of error.

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Answer:

f(x) = 9x - 18

Step-by-step explanation:

Moving the graph to the left or right involves directly manipulating the "x" value. When you want to shift the graph to the right, you need to subtract the desired value directly from "x". This would make the equation look like this:

f(x) = 9(x - 2)

However, this can be simplified by multiplying 9 by each term in the parentheses.

f(x) = 9x - 18

This is a way which is used to take sample randomly from the population. therefore, Keri took 4 random sample from each part of the day.

The stratified sampling can be defined as the sampling from the population which is partitioned or divided into many parts.

Here, the lady has divided her day into three parts morning, afternoon and evening.

This is a way which is used to take sample randomly from the population. therefore, Keri took 4 random sample from each part of the day.

This is a type of stratified sampling.

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Answer:

C

Step-by-step explanation:

the ratios of corresponding sides are in proportion

that is the outer triangle and the inner triangle

\(\frac{x}{30}\) = \(\frac{88}{44}\) = 2 ( multiply both sides by 30 to clear the fraction )

x = 30 × 2 = 60

Answer:

C. 60

Step-by-step explanation:

I just saw that 44 + 44 equals 88 and compared those two sides, I knew it couldn't be 88, so that's out.  Then, I saw that the side, 21 + 21, was shorter than the unknown side and that ruled out 42 and 30.  60 is the only one that is left and makes sense.

The required probability for the given different events are as follow,

Probability that exactly three paychecks are inserted in the correct envelopes = 1/12

probability of at least three paychecks is 1/4.

Probability that exactly three paychecks are inserted in the correct envelopes, use the formula for permutations,

Probability 'P'

=[ (number of ways to choose 3 correct envelopes) x (number of ways to choose 2 incorrect envelopes) x (number of ways to arrange the paychecks in the correct envelopes) ] / (total number of ways to arrange the paychecks in the envelopes)

Number of ways to choose 3 correct envelopes out of 5 is

5C3 = 10

Number of ways to choose 2 incorrect envelopes out of 5 is

5C2 = 10

Number of ways to arrange the 3 correct paychecks in their correct envelopes is 3! = 6

Number of ways to arrange the 2 incorrect paychecks in their incorrect envelopes is 2! = 2.

Total number of ways to arrange the paychecks in the envelopes is

5! = 120.

Probability that exactly three paychecks are inserted in the correct envelopes is,

Probability

= (10 x 10 x 6 x 2) / 120

= 1/12

Probability that at least three paychecks are inserted in the correct envelopes,

Exactly 3 paychecks are inserted in the correct envelopes

Exactly 4 paychecks are inserted in the correct envelopes

All 5 paychecks are inserted in the correct envelopes

Probability of exactly 3 paychecks being correct is 1/12.

Number of ways to arrange the paychecks in the envelopes is 1.

P(exactly 4 correct)

= (number of ways to choose 4 correct envelopes) x (number of ways to choose 1 incorrect envelope) x (number of ways to arrange the paychecks) / (total number of ways to arrange the paychecks)

= 5C4 x 1 x 4! / 5!

= 1/5

Probability of all 5 paychecks being inserted in the correct envelopes is 1/5! = 1/120.

Required probability

= 1/12 + 1/5 + 1/120

= 1/4

Therefore, the probability of exactly and at least 3 paychecks being inserted in the correct envelopes is equal to 1/12 and 1/4 respectively.

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\((0.4), (-4,-6)\)

The LCM of a, b is the smallest multiplier that is divisible by both a and b

\(= 0.4(-4, -6)\)

Answer:

i think factoring

Step-by-step explanation:

Answer: for the first one its quadratic formula...

Step-by-step explanation:

im still doing the QC so ill keep you updated

Answer:

a=18/b2

Step-by-step explanation:

The required equation for the indicated variable is a = 18/b² which is solved for a.

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

We have been given the equation for the indicated variable as

⇒ 1/3ab² = 6

Multiply by 3 both sides of the above equation,

⇒ ab² = 6×3

⇒ ab² = 18

Divide by b² into both sides of the equation, and we get

⇒ a = 18/b²

Therefore, the required equation for the indicated variable is a = 18/b².

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Answer:

Step-by-step explanation:

Multiply the y in the binomial by every term in the trinomial. Repeat this for the 3, and sum them all up

\((y+3)(y^2+8y-2)\\y^3+8y^2-2y+3y^2+24y-6\\y^3+11y^2+22y-6\)

Answer:

No

Step-by-step explanation:

Why should anyone help you when all you do is steal points

Answer:

4x

Step-by-step explanation:

2\(x^{2}\)

The derivative of a\(x^{n}\) is na\(x^{n-1}\)

2 × 2\(x^{2-1}\)

Multiply 2 times 2.

4\(x^{2-1}\)

Subtract 1 from 2.

4\(x^{1}\)

For any term t, \(t^{1}\) = t

4\(x\)

he option with the greatest probability is option e: p(z<2) if z is a standard normal random variable.

The greatest probability among the given options can be determined by comparing the probabilities of each option. Here's a step-by-step explanation:
Understand the given options:
a. p(t>2) if t has 5 degrees of freedom (t-distribution with 5 df)
b. p(t>2) if t has 2 degrees of freedom (t-distribution with 2 df)
c. p(z>2) if z is a standard normal random variable (standard normal distribution)
d. p(t<2) if t has 5 degrees of freedom (t-distribution with 5 df)
e. p(z<2) if z is a standard normal random variable (standard normal distribution)
Recall that t-distributions are more spread out with thicker tails than the standard normal distribution, and as the degrees of freedom increase, the t-distribution approaches the standard normal distribution.
Now, compare the options:
a. p(t>2) with 5 df: Lower probability due to thicker tails and lower df.
b. p(t>2) with 2 df: Even lower probability due to thicker tails and very low df.
c. p(z>2) (standard normal): Lower probability because it's on the right tail of the distribution.
d. p(t<2) with 5 df: Higher probability because it covers the central part of the t-distribution with 5 df.
e. p(z<2) (standard normal): Highest probability because it covers the central part of the standard normal distribution, which is more concentrated in the middle compared to t-distributions.
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There were 13 students on the wrestling team.

First, we need to calculate how many students are involved in student sports:

20% of 520 students = 0.20 x 520 = 104 students

Then, we need to calculate how many of those students were on the wrestling team:

12.5% of 104 students = 0.125 x 104 = 13 students

Therefore, there were 13 students on the wrestling team.

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Answer:

i hope you meant "y" instead of "t" because that would make so much more sense. all you have to do with this is replace "y" in the equation with "x + 3" (this makes the equation x = 3[x + 3] - 2). now, you multiply and combine the like-terms (making x = 3x + 7). you now continue by subtracting 3x from both sides of the equation to make -2x = 7 and dividing to make x = -3.5

Step-by-step explanation:

x = 3(x + 3) - 2

x = 3x + 9 - 2

x = 3x + 7

-2x = 7

x = -3.5

In the worst-case scenario, the company should use the following values: price = $799 per unit, variable cost = $289 per unit, fixed costs = $2.89 million, and quantity = 60,950 units.

In the best-case scenario analysis for Automatic Transmissions, Inc.'s new gear assembly project, the company assumes the upper limit of the ±15 percent range for its estimates. For the price per unit, they take a 15 percent increase, resulting in a value of $1081. Similarly, the variable cost per unit is increased by 15 percent to $391. The fixed costs are also adjusted upwards by 15 percent, reaching $3.91 million. Finally, the quantity is decreased by 15 percent, leading to a value of 45,050 units.

On the other hand, in the worst-case scenario analysis, the company assumes the lower limit of the ±15 percent range for its estimates. The price per unit is decreased by 15 percent, resulting in $799. The variable cost per unit is decreased to $289. The fixed costs are adjusted downwards to $2.89 million. Lastly, the quantity is increased by 15 percent to 60,950 units.

Therefore, in the worst-case scenario, the company should use the following values: price = $799 per unit, variable cost = $289 per unit, fixed costs = $2.89 million, and quantity = 60,950 units

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After 7 hours, the population of bacteria is obtained as 418544.

Some of the rules of exponents are as follows,

The product of two exponents having the same power is equal to the power of their base multiplied.

The product of two exponents having the same base is equal to the sum of the powers of different exponents to the same base.

The initial population of bacteria is given as 37000.

And, the doubling time is 2 hours.

Then, the formula for the population of bacteria at t hour can be given as,

P(t) = P₀ × \(2^{t/2}\) where P₀ is the initial population.

Substitute t = 7 and P₀ = 37000 to get,

P(7) = 37000 × \(2^{7/2}\)

⇒ P(7) = 418544

Hence, the population of bacteria after 7 hours is 418544.

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Answer: D

Step-by-step explanation:

Given a binomial distribution, the standard deviation can be found by the equation

√\(npq\)

where n = number of trials, p = chance of success, and q = chance of failure (or 1 - p).

Volume is a three-dimensional scalar quantity. The depth of the YMCA lap pool is 2 meters.

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given that the following details about the YMCA lap pool:

Since the pool is in the space of a right rectangular prism, therefore, the volume of the prism will be the product of length, width and depth. Therefore, the volume of the pool can be written as,

The volume of the pool = Length × width × depth

1472m³ = 36.8m × 20 m × depth of the pool

Depth of the pool = (1472m³ ) / (36.8m × 20m)

                              = 2 meter

Hence, the depth of the YMCA lap pool is 2 meters.

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The length of side BD which is the altitude of the triangle is 2√(70)

The length of BD is solved using similar triangles. This is defined by triangles formed from triangle ABC and they include

Let the altitude be h, hence we have the formula of the proportions as

AD / h = h / DC

plugging the values gives

20 / h = h / 14

h^2 = 20 * 14

h = √(20 * 14 )

h = √(280)

h = 2√(70)

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