There are 10 true-false questions and 20 multiple choice questions from which to choose a five-question quiz how many ways can the quiz be selected if there must be at least three multiple choice questions selected?​

Answer:

The percentage decrease in price of Air conditioner is 33.33%  

Step-by-step explanation:

Given as :

The initial price of air conditioner = Rs 27000

The reduce price of air conditioner = Rs 24000

Let the rate of percentage = x %

So,  % decrease = [tex]\frac{\textrm initial value - \textrm final value}{\textrm initial value}[/tex] × 100

Or,  % decrease = [tex]\frac{\textrm 27000 - \textrm 24000}{\textrm 27000}[/tex] × 100

Or , % decrease = [tex]\frac{3000}{27000}[/tex]  × 100

Or,  % decrease = [tex]\frac{100}{9}[/tex]

Or. % decrease = 33.33 %

Hence The percentage decrease in price of Air conditioner is 33.33%   Answer

The sum of 5 consecutive odd integers is 145. These are the other 4 consecutive odd numbers. Now if we add all of these up we will get this : 25 + 27 + 29 + 31 + 33 = 145.

Hope I helped! ☺☼

The five consecutive odd numbers that sum up to 145 are 25, 27, 29, 31, and 33.

Let's call the middle of the five consecutive odd numbers n. Because these numbers are odd and consecutive, the two numbers before n will be n-2 and n-4, and the two after will be n+2 and n+4. The sum of these five numbers is:

n-4 + n-2 + n + n+2 + n+4 = 5n.

Since the sum of the five numbers is 145, we have:

5n = 145.

To find the value of n, we divide both sides by 5:

n = 145 / 5,

n = 29.

So the middle number is 29, and the five consecutive odd numbers are 25, 27, 29, 31, and 33.

The above question is incomplete, the complete question is:

The sum of 5 consecutive odd numbers is 145. find the numbers.

Answer:

In descending order the function are represented as [tex]D>F>A>B>E>C[/tex]

Step-by-step explanation:

Whether it is increasing or is the larger or smaller number it all depends on its slope.

Equation of line [tex]y=m(x)+c[/tex],and [tex]m[/tex] is the slope.

So we will work with the slopes of each equations and arrange them in descending order.[Greater to larger number sequence]

Slopes are [tex]\frac{4}{3}, \frac{5}{4}, \frac{-2}{1},\frac{7}{4}, \frac{6}{5}, \frac{8}{5}[/tex]

We will equate the denominator by taking LCD of it then multiply numerator and denominator with a fix number which can bring all the denominator same.

LCD of the denominator [tex](1,3,4,5)=60[/tex]

Example:

[tex]\frac{4}{3}=\frac{4\times 20}{3\times 20}= \frac{80}{60}[/tex]

Similarly we will equate all the fractions.

So the slope are [tex]\frac{80}{60}, \frac{75}{60}, \frac{-120}{60},\frac{105}{60}, \frac{72}{60}, \frac{96}{60}[/tex]

In descending order the numbers are:

[tex]\frac{105}{60},\frac{96}{60}, \frac{80}{60}, \frac{75}{60},\frac{72}{60},\frac{-120}{60}[/tex]

According to the option the right choice are as follows:

[tex]D>F>A>B>E>C[/tex]

To find increasing functions, examine the slope of each equation, which must be positive for the function to be increasing. Functions A, B, D, E, and F are increasing, with D having the largest unit rate. C is a decreasing function and is not classified with the others.

To determine which functions are increasing, we look at the coefficient of x in each equation since that represents the slope of the line. For a function to be increasing, its slope (unit rate) must be positive. Comparing the slopes will help us classify each function as having a larger unit rate or a smaller unit rate than the function represented in the graph. Without the specific function from the graph for comparison, we'll just compare the given functions to each other.

Based on the slopes, D has the largest unit rate, followed by F, A, B, and E, in that order. Function C is not increasing and thus not part of this classification.

Answer:

equation of the line = y=12x+45 i cant rlly graph it for you

Step-by-step explanation:

y-3 = 12 (x+4)

y-3 = 12x + 48

-3               -3

y=12x + 45

Considering the dimensions of the given rectangular prism and it's volume, the height of the chest is of 8 inches.

The volume of a rectangular prism of width w, length l and height h is given by the multiplication of these dimensions, as follows:

V = lwh

For this problem, the dimensions are given as follows:

w = 16, l = 4h, V = 4096.

Hence the height of the chest can be found as follows:

lwh = 4096

16 x 4h x h = 4096

h² = 4096/64

h² = 64

h = 8.

Hence, the height of the chest is of 8 inches.

More can be learned about the volume of a rectangular prism at https://brainly.com/question/17223528

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D. Reflexive Property of SSS

Answer:

D

3. Reflexive Property of (Congruence) ≅

4. SSS (Side to Side to Side Congruence rule)

Step-by-step explanation:

3. Any geometric figure compared to itself is congruent to itself so this is why:

[tex]\overline{AC}\cong \overline{CA}\\\angle B\cong \angle B\\(...)[/tex]

4. Since we have a parallelogram, therefore we can say:

[tex]\overline{BC}\cong \overline{DA}\\\\\overline{BA}\cong \overline{DC}\\\\\overline{CA}\cong \overline{AC}\\[/tex]

Both triangles ABC and CDA satisfy the side to side to side congruence, since their 3 sides are congruent.

So, It's D.

P.S.

Notice that the angle measure information is not included in the data above that's why we cannot say it is SAS congruence.

Answer:

1.40f .

Step-by-step explanation:

One answer could be:

In March  the house had f + 40% of f

= f + 0.40f

= 1.40f

Answer:

If the February snowfall is valued as fs, the snowfall in March with an additional 40% could be expressed as:

Step-by-step explanation:

In the exercise it is mentioned that the snowfall in March was 40% higher than in February, if you wanted to express it in a mathematical function it could be mentioned that:

What could be represented as:

When calculating we would obtain:

Answer:

1. [tex]\dfrac{44}{13}=3\dfrac{5}{13}[/tex]

2. 9.6

3. 0

Step-by-step explanation:

Thales’ Theorem: If arms of an angle are cut by parallel straight lines, then the ratio of the lengths of the line segments obtained on one arm are equal to the corresponding segments obtained on the second arm.

1. By Thales's theorem,

[tex]\dfrac{9}{4}=\dfrac{11-x}{x}\\ \\9x=4(11-x)\ [\text{Cross multiply}]\\ \\9x=44-4x\\ \\9x+4x=44\\ \\13x=44\\ \\x=\dfrac{44}{13}[/tex]

2. By Thales's theorem,

[tex]\dfrac{8}{12}=\dfrac{x}{24-x}\\ \\12x=8(24-x)\ [\text{Cross multiply}]\\ \\12x=192-8x\\ \\12x+8x=192\\ \\20x=192\\ \\x=9.6[/tex]

3. By Thales's theorem,

[tex]\dfrac{4x}{5x}=\dfrac{4x-8}{6x-10}\\ \\\dfrac{4}{5}=\dfrac{4x-8}{6x-10}\\ \\5(4x-8)=4(6x-10)\ [\text{Cross multiply}]\\ \\20x-40=24x-40\\ \\20x=24x\\ \\4x=0\\ \\x=0[/tex]

Answer:

28 n 2 + 64 n + 16

Step-by-step explanation:

Hey there! :)

Equation 1) -2x + y = 14

Equation 2) 4x - 6y = 4

Add 2x to both sides of equation 1 so that we can get the value of y.

y = 2x + 14

Now, plug the value of y into our second equation.

4x - 6(2x + 14) = 4

Simplify.

4x - 12x - 84 = 4

Add 84 to both sides.

4x - 12x = 4 + 84

Simplify.

-8x = 88

Divide both sides by -8.

x = -11

Now, plug our value of x into our first equation in order to find y.

-2x + y = 14

-2(-11) + y = 14

22 + y = 14

y = -8

Therefore, the systems of equation variables are : (-11, -8)

~Hope this helped! :)

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For solving such questions we need to know the linear inequations .

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Liner inequations can be solved with many methods . But here as mentioned we have to solve with substitution method .

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Substitution method is the method of finding the value of one variable from equation 1 and then substituting the value in the equation 2 .

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-2x + y = 14 --- ( i )

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4x - 6y = 4

2 ( 2x - 3y ) = 4

2x - 3y = 4 / 2

2x - 3y = 2 --- ( ii )

As given , -2x + y = 14

➠ y = 14 + 2x

Now, we will substitute the value of y in eq ( ii )

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➠ 2x - 3y = 2

➠ 2x - 3 ( 14 + 2x ) = 2

➠ 2x - 42 - 6x = 2

➠ 2x - 6x = 2 + 42

➠ -4x = 44

➠ x = 44 / - 4

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➠ x = -11

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[tex]\sf{\underline{\boxed{\huge{\blue{\mathbb{x = - 11 }}}}}}[/tex]

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➠ -2x + y = 14

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➠ - 2 × - 11 + y = 14

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➠ 22 + y = 14

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➠ y = 14 - 22

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➠ y = - 8

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[tex]\sf{\underline{\boxed{\huge{\blue{\mathbb{y = -8}}}}}}[/tex]

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Answer:

11x-4

Step-by-step explanation:

2x^2+7x-4

2x^2= 2x2 =4 x

4x+7x=11x-4

Answer: -3/7

Step-by-step explanation:

-3x + 5x +-3= 4x + 5x

7x=-3

x=-3/7

Answer:

5x + 3=4x

Step-by-step explanation:

Answer:

The graph is uploaded in the attachment.

The value of x is 2.625.

Step-by-step explanation:

so, f(x)=y and g(x)=y.

( where m is the slope and c is the y-intercept )

(y-intercept is the the coordinate of a point where the line intersects y-axis)

(slope is the angle made by the line with the x-axis)

Answer:

Step V: Transitive property of Inequality

Step VI: Subtraction Property of Inequality

Step-by-step explanation:

In Step IV, the RHS of t=both the sides are equal.

So, they equated the LHS of both the sides.

This is the transitive property of equality which states that if a = b and c = b then a = c.

In this case, a = [tex]$ \angle {m_1} + \angle {m_2}  $[/tex]

b = 180⁰

c = [tex]$ \angle {m_2} + \angle {m_3} $[/tex]

Consequently, [tex]$ \angle {m_1} + \angle {m_2} = \angle {m_2} + \angle {m_3} $[/tex]

In step VI, [tex]$ \angle {m_2} $[/tex] is subtracted on both the sides. So, this is called as Subtraction Property of Equality.

Answer:

x ≤ 2

Explanation:

As with equations, there may be instances in which there is no solution to an inequality. Isolate the absolute value by subtracting 9 from both sides of the inequality. The absolute value of a quantity can never be a negative number, so there is no solution to the inequality.

Answer:

y = 2x

Step-by-step explanation:

Note the relationship between x and y, that is

x = - 42 → y = - 84 ← that is y = 2x

x = - 14 → y = - 28 ← that is y = 2x

x = 14 → y = 28 ← that is y = 2x

x = 42 → y = 84 ← that is y = 2x

Thus the linear equation is y = 2x

Answer:

Step-by-step explanation:

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

The formula of a slope:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

From the table we have the points (14, 28) and (42, 84).

Substitute:

[tex]m=\dfrac{84-28}{42-14}=\dfrac{56}{28}=2[/tex]

Put the val;ue of a slope and the coordinates of the point (14, 28) to the equation of a line:

[tex]28=2(14)+b[/tex]

[tex]28=28+b[/tex]    subtract 28 from both sides

[tex]28-28=28-28+b\\\\0=b\to b=0[/tex]

Finally we have:

[tex]y=2x+0=2x[/tex]

Answer:

First blank -- B

Second blank -- A

Third blank -- C

Step-by-step explanation:

To find characteristics of a quadratic equation from just looking at the graph is very simple. Here are few points which you can keep in mind which solving these type of questions.

[tex]D=b^{2} -4ac[/tex]

if D > 0 then two distinct real roots (graph cuts x-axis at two distinct points)

if D = 0 then two equal real roots (graph touches x-axis)

if D < 0 then two imaginary roots (graph doesn't touch x-axis)

For graph A : D < 0 (as it has imaginary roots)

For graph B : D = 0 (as it touches the x-axis)

For graph C : D > 0 (as [tex]D=b^{2}-4ac=4^{2}-4 \times 1 \times (-2)=16+8=24[/tex])

Answer:

Graph B has one real root.

Graph A has a negative discriminant.

Graph C has an equation with coefficients

Step-by-step explanation:

Answer:

3

d

=

−

36

Step-by-step explanation:

Answer:

$650

Step-by-step explanation:

9100-4500     = 4550

    14-7                  7

= 650

     1

=$650

Answer:

They could make 14 full stacks

Step-by-step explanation:

All you need to is divided the 269 by the 18 cartons and it will equal 14.944444444

so that means only 14 full stacks and you can't round because that would not make sense

The solution to the differential equation [tex]\( \frac{dy}{dx} = \sqrt{x + 16} \)[/tex]with the initial condition y(0) = 0 is [tex]\( y = \frac{2}{3}(x + 16)^{3/2} - \frac{128}{3} \)[/tex].

To solve the differential equation [tex]\( \frac{dy}{dx} = \sqrt{x + 16} \)[/tex] with the initial condition y(0) = 0, we'll integrate both sides with respect to x.

Given:

[tex]\[ \frac{dy}{dx} = \sqrt{x + 16} \][/tex]

Integrating both sides:

[tex]\[ \int \frac{dy}{dx} \, dx = \int \sqrt{x + 16} \, dx \]\[ \int dy = \int \sqrt{x + 16} \, dx \]\[ y = \frac{2}{3}(x + 16)^{3/2} + C \][/tex]

Now, we'll apply the initial condition y(0) = 0 to find the value of the constant C:

[tex]\[ 0 = \frac{2}{3}(0 + 16)^{3/2} + C \]\[ 0 = \frac{2}{3}(16)^{3/2} + C \]\[ 0 = \frac{2}{3}(64) + C \]\[ C = -\frac{128}{3} \][/tex]

So, the particular solution to the differential equation with the initial condition is:

[tex]\[ y = \frac{2}{3}(x + 16)^{3/2} - \frac{128}{3} \][/tex]

Answer:

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Investment of Sara during her 1st year of college = US$ 2,000

Duration of the investment = 4 years

Annual interest rate = 3%

2. Let's find the future value of this investment after 4 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment of Sara during her 1st year of college = US$ 2,000

number of periods (n) = 4

rate (r) = 3% = 0.03

Replacing with the real values, we have:

FV = 2,000 * (1 + 0.03) ⁴

FV = 2,000 * (1.03) ⁴

FV = 2,000 * 1.12550881

FV = 2,251.02

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Answer:

2240

Step-by-step explanation:

Answer:

During January it decreased by $3,530.

Step-by-step explanation:

Given data:

Value of stocks in January 1st = $8,474

Value of stocks on March 1st = $3,323

Decrease value during February = $1,621

To find the decrease value during January.

Solution:

Let the decrease value in dollars during January be = [tex]x[/tex]

So, value of stocks in dollars on 1st February will be = [tex]8474-x[/tex]

So, value of stocks in dollars on 1st March will be = [tex]8474-x-1621[/tex]

So, we have

[tex]8474-x-1621=3323[/tex]

[tex]6853-x=3323[/tex]

Subtracting both sides by 6853.

[tex]6853-x-6853=3323-6853[/tex]

[tex]-x=-3530[/tex]

Multiplying both sides by -1.

∴ [tex]x=3530[/tex]

Thus, during January it decreased by $3,530.

Answer:

-11/48

Step-by-step explanation:

11/16-11/12=132/192-176/192=-44/192

simplify

-11/48

PLEASE MARK BRAINLIEST!

Answer:

Your answer is

Step-by-step explanation:

11/16 = 33/48

11/12 = 44/48

33/48 - 44/48 = -11/48

Your answer is -11/48.

I hope this helps!

Answer:

4 5/12 or four and five twelfths or 4 and 5 over 12

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

When we differentiate the function, we get -32x + 32, which is the velocity function of the original.

When we differentiate again, we get -32, which is derived from the initial -16. This -32 represents the acceleration, because it is the 2nd derivative.

Hence, the answer is D, acceleration due to gravity.

Answer:

4/3t

Step-by-step explanation:

1/2t.........90m

x t.............4h->240m

x=(240m*1/2t)/90m

x=120/90

x=4/3t

The construction crew can clear 8/3 tons of dirt in 4 hours.

To find out how much dirt the construction crew can clear in 4 hours, we need to first determine their rate of clearing dirt. The question states that they can clear 1/2 ton of dirt in 90 minutes. To calculate their rate, we divide the amount of dirt cleared (1/2 ton) by the time taken (90 minutes):

Rate = 1/2 ton / 90 minutes

Simplify the rate:

Rate = 1/2 × 2/90 ton/minute = 1/180 ton/minute

Now, to find how much dirt they can clear in 4 hours, we multiply their rate by the number of minutes in 4 hours:

Dirt cleared = Rate × Time

Dirt cleared = 1/180 ton/mintue × 4 hours × 60 minutes/hour

Simplify the units:

Dirt cleared = 1/180 × 4 × 60 ton

Calculate the result:

Dirt cleared = 8/3 ton

Therefore, the construction crew can clear 8/3 tons of dirt in 4 hours.

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Answer:

[tex]y=-30x+0[/tex]

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form [tex]k=\frac{y}{x}[/tex] or [tex]y=kx[/tex]

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the linear equation represent a proportional relationship, because pass through the origin (0,0).

Find the value of the constant of proportionality k

For x=1, y=-30

substitute

[tex]k=\frac{-30}{1}=-30[/tex]

so

the linear equation is

[tex]y=-30x[/tex]

therefore

[tex]y=-30x+0[/tex]

Answer:

The value of y for x = 8 is 60  .

Step-by-step explanation:

Given expression as :

For x = 2  , y = 15

Let the equation be written with constant k'

So, y = k x

Or, k = [tex]\dfrac{y}{x}[/tex]

∴   k =  [tex]\dfrac{15}{2}[/tex]

Now, again

For x = 8

equation can be written as

   y = k x

Or,  y =  [tex]\dfrac{15}{2}[/tex] × 8

Or,  y = [tex]\frac{15\times 8}{2}[/tex]

∴    y = 15 × 4

I.e  y = 60

Hence The value of y for x = 8 is 60  . Answer

Answer:

478 R 4

Step-by-step explanation: