someone js help me answer this question:

3 + 2 if = 7

Answer:

The answer to the question is 2 and 5

Usando un sistema de ecuaciones, se encuentra que

Para el sistema, hay que:

$845 por 3 libros de Algebra, 5 libros de Geometría Analítica y 2 libros de Cálculo Diferencial, o sea:

\(3x + 5y + 3z = 845\)

$580 por 2 libros de Geometría Analítica, 4 libros de Algebra y 1 libro de Cálculo Diferencial, o sea:

\(4x + 2y + z = 580\)

$605 por un libro de Algebra, 3 libros de Geometría Analítica y 3 de Cálculo Diferencial, o sea:

\(x + 3y + 3z = 605\)

Reemplazando la segunda equación en las otras duas:

\(z = 580 - 4x - 2y\)

\(3x + 5y + 3z = 845\)

\(3x + 5y + 3(580 - 4x - 2y) = 845\)

\(-9x - y = -895\)

\(9x + y = 895\)

\(y = 895 - 9x\)

\(x + 3y + 3z = 605\)

\(x + 3y + 3(580 - 4x - 2y) = 605\)

\(-11x - 3y = -1135\)

\(11x + 3y = 1135\)

\(y = 895 - 9x\), por eso:

\(11x + 3(895 - 9x) = 1135\)

\(-16x = -1550\)

\(x = \frac{1150}{16}\)

\(x = 96.875\)

\(y = 895 - 9x = 895 - 9(96.875) = 23.125\)

\(z = 580 - 4(96.875) - 2(23.125) = 146.25\)

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The solution set of the example inequality, 2•x + 3 ≤ -3, is the option;

A possible inequality that can be used to get one of the options, (the inequality is not included in the question) is as follows;

Solving the above inequality, we have;

2•x + 3 ≤ -3

2•x ≤ -3 - 3 = -6

2•x ≤ -6

Therefore;

x ≤ -6 ÷ 2 = -3

x ≤ -3

Which gives;

-∞ < x ≤ -3 in interval notation is (-∞, -3]

The solution set of the inequality, 2•x + 3 ≤ -3, is therefore the option;

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Answer:

The answer is "16 feet"

Step-by-step explanation:

Please find the complete question in the attached file.

Answer:  Let the points be A(1,1) and B(2,3)

Slope of AB=  

2−1

3−1

​

=2

Product of slope of a line and its perpendicular is −1

⇒ Slope of perpendicular =−  

2

1

​

Mid point of AB is  

(  

2

1+2

​

,  

2

1+3

​

)

(  

2

3

​

,2)

So the equation of perpendicular is  

y−2=−  

2

1

​

(x−  

2

3

​

)

4y−8=−(2x−3)

2x+4y=11

2x+4y−11=0

Step-by-step explanation:

a. To represent the value of the house t years after the house was purchased, we can use the formula for compound interest:

Value = Principal * (1 + Rate)^Time

In this case, the principal (P) is the initial purchase price of the house, which is $135,000.

The rate (R) is the annual appreciation rate, which is 4% or 0.04. The time (T) is the number of years after the house was purchased.

Therefore, the function to represent the value of the house t years after the purchase is:

Value(t) = $135,000 * (1 + 0.04)^t

b. To find the value of the house in 10 years, we can substitute t = 10 into the function:

Value(10) = $135,000 * (1 + 0.04)^10

Calculating this expression gives us the value of the house after 10 years based on the given rate of appreciation.

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Answer: The first graph

Step-by-step explanation:

An asymptote is an imaginary line that the function is approaching but never reaching. y=2 is a horizontal line. Therefore by looking at the graphs, the first graph shows the two functions never approaching 2, but gets very close to it. Therefore it is the first graph.

The probability that all of them are real is 0.01875 or 1.875%

If the diamonds are replaced after each draw:

The probability of drawing a real diamond is 9/14, found by making the numerator the number of real diamonds and adding the total number of diamonds to find the denominator. 5+9 = 14.

To find the probability of all 9 diamonds drawn being real, multiply 9/14 by itself 9 times.  = 387420489/ 20661046784. This creates a probability of 387420489/ 20661046784. This cannot be reduced because there is no common factor. To express as a decimal, divide. 387420489/ 20661046784 = 0.01875. To turn this into a percent, multiply by 100. 0.01875*100 = 1.875

Hence, the probability that all of them are real is 0.01875 or 1.875%

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Hello there!

6¹³÷6⁷=6⁶=46,656

Now, what did we do? We subtracted the powers. As long as we have the same number, we can subtract the powers.

Remember this formula:

\(x^{n} :x^{m} =x^{n-m}\)

Now, 6^6 means 6*6*6*6*6*6.

Hope this helps!

\(GraceRosalia\)

Answer: The Tri-State Pick 3 lottery game offers a choice of several bets, including a "box" bet where you choose a three-digit number and win if the number you choose has the same digits as the winning number, in any order. The expected payoff for a $1 bet on the box is $83.33.

To find this expected value, we need to consider all the possible ways that the winning number could be chosen and calculate the probability of each outcome. Since the winning number is chosen at random, each of the 10 possible digits (0 through 9) is equally likely to be chosen for each of the three positions in the winning number.

Since the box bet pays off if the digits of your chosen number match the digits of the winning number, regardless of their order, the number of winning combinations is equal to the number of ways to arrange the three digits of the winning number. This is equal to 3! (3 factorial), which is equal to 6.

Since there are a total of 10 possible digits for each position and the winning number has three positions, there are a total of 10 x 10 x 10 = 1000 possible winning numbers. Of these, 6 will pay off for a box bet, so the probability of winning a box bet is 6/1000 = 0.006.

Since the expected value of a bet is equal to the probability of winning multiplied by the payoff, the expected value of a $1 bet on the box is 0.006 x $83.33 = $0.05. Therefore, the expected payoff for a $1 bet on the box is $0.05.

According to Dr. Aguilera's findings, excessive levels of anxiety are associated with poor academic performance. Sleep duration, on the other hand, is unrelated to excellent or poor academic performance.

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Answer:

Volume=2/6cu.ft

Step-by-step explanation:

.........................

option B

The volume of the cylinder is approximately 853.0 cubic inches.

To find the volume of a cylinder, you need to use the formula V = πr²h, where V is the volume, π (pi) is a mathematical constant approximately equal to 3.14, r is the radius, and h is the height of the cylinder.

In this problem, the radius is given as 3.5 inches and the height is given as 22 inches. Plugging these values into the formula, we get:

V = π(3.5)²(22)

V = 3.14(3.5)²(22)

V = 3.14(12.25)(22)

V = 853.03

Rounding this answer to the nearest tenth, we get V ≈ 853.0 cubic inches.

Therefore, the volume of the cylinder is approximately 853.0 cubic inches.

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Step-by-step explanation:

Let

f

(

x

)

=

x

3

−

6

x

2

+

k

x

+

10

If

(

x

+

2

)

is a factor

Then,

f

(

−

2

)

=

0

f

(

−

2

)

=

−

8

−

24

−

2

k

+

10

=

0

2

k

=

−

22

k

=

−

11

The required simplified value of the k in the given expression is 32 / 3.

Given that,
An expression 6x³-4x²+kx - k​ value of k is to be determined when it has a factor of 3x -2.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
3x - 2 = 0
x = 2 / 3
Now,
put x = 2 /3 in f(x) = 0
6 (2 / 3)³ - 4(2 / 3 )² + 2k/3 - k = 0
6 × 8 / 9 - 16 / 9 + 2k/3 - k= 0
16/3 - 16/9 - k/3 = 0
32/9 - k / 3 = 0
k /3 = 32 / 9
k = 32 / 3

Thus, the required simplified value of the k in the given expression is 32 / 3.

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Answer:

The Snowplow needs to turn 44 times.

Answer:

Step-by-step explanation:

again , you know that the two angles add up to 180°

you know that by the complementary angle rule.

set the two equations equal to 180 and solve for x

180= eq1 + eq2

To eliminate the roots in 1.1 and 1.2, we can use trigonometric substitution. In 1.1, we can substitute x = 4 sin(theta) to eliminate the root of 4. In 1.2, we can substitute z = 7 sin(theta) to eliminate the root of 7.

1.1. V64+2 + 1 We can substitute x = 4 sin(theta) to eliminate the root of 4. This gives us:

V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3 1.2. V4z2 – 49

We can substitute z = 7 sin(theta) to eliminate the root of 7. This gives us:

V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta) (2 – 1) = 7 sin(theta)

Here is a more detailed explanation of the substitution:

In 1.1, we know that the root of 4 is 2. We can substitute x = 4 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 2.

When we substitute x = 4 sin(theta), the expression becomes V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3

In 1.2, we know that the root of 7 is 7/4. We can substitute z = 7 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 7/4.

When we substitute z = 7 sin(theta), the expression becomes: V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta)

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If the subset y is the empty set, then the statement is false. That is the counterexample.

We know that for an invertible function, we always have that:

\(f(x) = y\\f^{-1}(y) = x\)

Now, the range of f(x) is the set b. This means that the domain of the inverse is the set b. Such that:

f^{-1} is defined on b→a

Now we want to work on a subset y ⊆ b.

And here comes the problem.

The empty set {∅} is a subset of ay other set. So, if y is the empty set, there are no elements where we can evaluate the inverse function. From that counterexample, we conclude that the statement is false.

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Answer:

1) 117

2) 24

Step-by-step explanation:

Corresponding sides are in the same ratio for similar triangles

1)

For triangles MUL and WUV:

UW/UM = UV/UL

?/45 = 104/40

? = 45 x 104/40 = 117

2)
For triangles RST and RKH
RS/RK = RT/RJ

?/12 = 20/10 = 2

? = 2 x 12 = 24

Answer:

Is this a joke?

Step-by-step explanation:

Please tell me this is.

Answer:

y = - \(\frac{63}{4}\) or - 15.75

Step-by-step explanation:

Order of operations.

y + \(\frac{9}{2}\) = y - \(\frac{3}{4}\) - \(\frac{y}{3}\) Subtract y from each side.

y - y + \(\frac{9}{2}\) = y - y - \(\frac{3}{4}\) - \(\frac{y}{3}\)

\(\frac{9}{2}\) =  - \(\frac{3}{4}\) - \(\frac{y}{3}\)   Add \(\frac{3}{4}\) to each side

\(\frac{9}{2}\) + \(\frac{3}{4}\) = - \(\frac{3}{4}\) + \(\frac{3}{4}\) - \(\frac{y}{3}\)

\(\frac{9}{2}\) + \(\frac{3}{4}\) = - \(\frac{y}{3}\)    Find the common denominator for \(\frac{9}{2}\) and \(\frac{3}{4}\), which is 4

\(\frac{9}{2}\) * \(\frac{2}{2}\) + \(\frac{3}{4}\) = - \(\frac{y}{3}\)

\(\frac{18}{4}\) + \(\frac{3}{4}\) = - \(\frac{y}{3}\)

\(\frac{21}{4}\) = - \(\frac{y}{3}\)   Multiply each side by 3

\(\frac{21}{4}\)  * 3 = - \(\frac{y}{3}\) * 3

\(\frac{63}{4}\) = - y      Divide each side by -1

y = - \(\frac{63}{4}\) = - 15 \(\frac{3}{4}\)

y = - 15.75

Step-by-step explanation:

There are 2 scenarios below. One without parenthesis and the second with. I believe the second one is your question.

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

The submarine moved at a speed of 45 kilometers per hour.

In the situation where a submarine passed underneath a speedboat that was moving at 14 kilometers per hour. At a steady speed, the submarine moved 81 kilometers in 1.8 hours. To determine the speed of the submarine, we can use the formula:

( Speed = Distance / Time )

By putting the values in this formula, the speed of the submarine is obtained as:

81 km / 1.8 h = 45 km/h

Therefore, it is stated that the submarine moved at a speed of 45 kilometers per hour.

"

Correct question:

A submarine passed beneath a speedboat that was moving at 14 kilometers per hour. The submarine moved 81kilometer in 1. 8 hours at a steady speed. What was the submarine speed?

"

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False. Type I and Type II errors can still exist even when the sample size is more than 1000.

Type I error refers to rejecting a true null hypothesis, while Type II error refers to failing to reject a false null hypothesis. The existence of these errors is independent of the sample size.

The probability of making Type I and Type II errors can be influenced by factors such as the significance level, power of the test, and the effect size, but they can still occur regardless of the sample size.

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~one variable linear equation

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

10x - 7 = 4x + 5

= 10x - 7 - 4x = 5

= 10x - 4x = 5 + 7

= 6x = 5 + 7

= 6x = 12

= x = 12 ÷ 6

= x = 2 ✔️

~ nice to help you ^^

Answer:

3x^3

Step-by-step explanation:

First: you multiply the exponents inside the parenthesis with the one outside.

12*1/3=  4

3*1/3=1

you get 81x^(4)/3x

divide everything by 3:  27x^(4)/x

now subtract exponents (when dividing), you get: 27x^3

Now 1/3 is the same thing as cube root, so cube root of 27 is, thus the answer is: 3x^3

A graph of the solution to this system of inequalities on a coordinate plane is shown in the image attached below.

The coordinates of a point in the solution set is (3, -4).

In order to to graph the solution to the given system of inequalities on a coordinate plane, we would use an online graphing calculator to plot the given system of inequalities and then take note of the point of intersection;

y > -x - 1     .....equation 1.

y > x/3 - 5     .....equation 2.

Based on the graph (see attachment), we can logically deduce that the solution to the given system of inequalities is the shaded region above the dashed lines and the point of intersection of the lines on the graph representing each, which is given by the ordered pair (3, -4).

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Answer: 15856

Step-by-step explanation: 166786.9963 - 150930.6256

= 15856.3707

= $15856