Can someone help me with this question please. Thank you

Salut/Hello!

Answer: 3120 cubic cm

Step-by-step explanation:
cm - centimeters
=> - results

We know the area is 156 square cm
And the height is 20 cm

We know the area formula is A = L x l
where L - length
and l - latitude

We also know the volume formula is V = L x l x h
where h - height

So we can replace the length and latitude with the area and we have
V = A x h     and we know the area and height

So we calculate:
V = 156 x 20 => V = 3120 cubic cm


I hope it was helpful! :]

Answer:Your mom

Step-by-step explanation:big

Answer:

what do yuo mean by adding and subtracting mixed fractions

In circle A,  angle RAS is 74 degrees and  angle RTB is 28 degrees. The measure of minor arc BR is 81 degrees.

The figure is in the attached picture.

Notice that:

AS = AR = radii of the circle.

Hence, triangle SAR is an isosceles triangle, and ∠ASR = ∠ARS.

The sum of angles in a triangle is  180°.

Therefore,

∠ARS +  ∠ASR+ 74° =  180°

Since ∠ASR = ∠ARS,

2∠ARS + 74° =  180°

2∠ARS  = 106°

∠ARS  =  53°

and

∠ASR = ∠ARS = 53°

Angle in a straight line:

∠AST  + ∠ASR =  180°

∠AST   =  180° - ∠ASR =  180° - 53°  =  127°

Refer to triangle SAT:

∠SAT  =  180° - 28° - 127°  =  25°

The measure of minor arc BR = ∠RAB

∠RAB  =  180° - 74° - 25°  

∠RAB  =  81°

The picture in your question is missing, but most likely it was in the attached picture.

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Answer:

We need 166.5 ml of soy sauce when we have 111 ml of vinegar.

We need 74 ml of vinegar when we have 111 ml of soy sauce.

Step-by-step explanation:

I think that you meant 150 and not 150150150 and 100 and not 100100100

[tex]\frac{soy sauce}{vinegar}[/tex] = [tex]\frac{soy sauce}{vinegar}[/tex]

[tex]\frac{150}{100}[/tex] is the same as [tex]\frac{3}{2}[/tex]  (simplified by dividing the top and the bottom by 50)

[tex]\frac{3}{2}[/tex] = [tex]\frac{x}{111}[/tex]  Cross multiply and solve for x

2x = 3(111)

2x = 333  Divide both sides by 2

[tex]\frac{2x}{2}[/tex] = [tex]\frac{333}{2}[/tex]

x = 166.5

We need 166.5 ml of soy sauce when we have 111 ml of vinegar.

[tex]\frac{3}{2}[/tex] = [tex]\frac{111}{x}[/tex]  Cross multiply and solve for x

3x = 2(111)

3x = 222  Divide both sides by 3

[tex]\frac{3x}{3}[/tex] = [tex]\frac{222}{3}[/tex]

x = 74

We need 74 ml of vinegar when we have 111 ml of soy sauce.

x add 2x add 3x equals 6x

6x equals 180 degrees so x equals 180 divdied by 6 which equals 30

x is 30

[tex]y^2 - \cfrac{1}{16}=0\implies y^2=\cfrac{1}{16}\implies y=\pm\sqrt{\cfrac{1}{16}}\implies y=\pm\cfrac{\sqrt{1}}{\sqrt{16}}\implies y=\pm \cfrac{1}{4}[/tex]

The given condition can be modeled by the compound inequality:

x < -3 or x > 3.

We want to find an inequality that describes the next condition:

"All real numbers X with an absolute value of greater than three"

So our variable will be X, and the absolute value of X is written as:

|X|

We want to have an absolute value larger than 3, so we can write the inequality:

|X| > 3.

The absolute value part can be separated into two, such that we will get two inequalities:

x > 3

x < -3

So the inequality that illustrates the given condition is the compound inequality:

x < -3 or x > 3.

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The rate in cups of ketchup per cup of mustard is given as 6 cups of ketchup per cup of mustard.

The expression model is defined as the model of the given situation in the form of an expression using variables and constants.

Here,
The recipe calls for 3 cups of ketchup for every 1/2 of mustard.
Now,
The rate in cups of ketchup per cup of mustard = ketchup/mustard
                                                                                = 3 / [1/2]
                                                                                = 3 × 2 = 6 / 1

Thus, the rate in cups of ketchup per cup of mustard is given as 6 cups of ketchup per cup of mustard.

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When the parallel lines are cut by a transversal, the values for the measurement of ∠2 and ∠4 is 124° each.

What are parallel lines?

Two lines in the same plane that are equally spaced apart and never cross each other are said to be parallel lines in geometry. Both horizontal and vertical shapes are possible.

Examples of parallel lines can be found everywhere, including zebra crossings, rows of notebooks, and the nearby railroad tracks.

In the given diagram the parallel lines are cut by a transversal.

The measure of angle 5 is, m∠5 = 56°.

It is known that each pair of interior angles on the same side of a transversal that cuts two parallel lines are supplementary, or they add up to 180 degrees.

So, m∠5 + m∠2 = 180°

56° + m∠2 = 180°

m∠2 = 180° - 56°

m∠2 = 124°

Now, as it can be seen in the image ∠2 and ∠4 are vertically opposite angles.

So, they will be congruent or equal to each other.

So, it is obtained that -

m∠2 = m∠4

m∠4 = 124°

Therefore, the measures of angles are m∠2 = 99° and m∠4 = 99°.

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Answer:

12B + 8L ≤ 140

Step-by-step explanation:

B = number of hours babysitting.

L = number of hours landscaping.

Harper must earn no less that $140, so the amount Harper must eqrn is greater than or equal to 140.

Amount earned from babysitting at $12/hour = 12B

Amount earned from landscaping at $8/hour = 8L

Total amount earned = 12B + 8L

Inequality:

12B + 8L ≤ 140

Answer:

  see attached

Step-by-step explanation:

You want the steps in order for constructing a perpendicular to a line through an external point.

Essentially, the procedure identifies two points on the line (P and Q) that are equidistant from the external point (R), then proceeds to draw a perpendicular bisector of the segment between those two points. The external point is already equidistant from P and Q, so we only need to find another equidistant point (S) to complete the construction.

See the attachment for the ordering of the instruction steps. (Note the step numbers are not in order on the left.)

Answer:

30.144 or 3.14 if rounded.

Step-by-step explanation:

First you need to find the area of the table top

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

a = (3.14) ([tex].8^{2}[/tex])    The radius is the half of the diameter 1.6/2 = .8

a = 3.14(.64)

a = 2.0096

The area is 2.0096 [tex]m^{2}[/tex]

the cost will be

2.0096 x 15 = 30.144 rupees

Doe you round rupees to the nearest hundredths' place?  I am not sure. Rounded the number would be 30.14

If Last year, Christine had $20,000 to invest. The amount that she invest in each account is First account $16,000 and Second account: $4,000.

Let x represent the amount Christine invested in an account that paid 8% interest

Let y represent  the amount Christine invested in an account that paid 10% interest

x + y = 20,000    

.8x + .010y = 1920

Multiply each sides of this equation by 100 to  remove  the decimal points.

8x + 10y = 192,000

8(20,000-y) + 10y = 192,000

160,000 - 8y + 10y = 192,000

2y = 32,000

y = 32,000/2

y = $16,000

So,

x = 20,000 - 16,000

x = $4000

Therefore the First account is $16,000 and Second account is $4,000.

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If Sₙ denotes the sum of the reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive , then the smallest positive integer n for which Sₙ is an integer is 63 .

The "Sₙ" be the sum of reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive ;

We Let [tex]K= \sum_{i=1} ^{9} \frac{1}{i}[/tex] ,

On further examination , we get that , [tex]S_{1} =K+1[/tex] ;

Since each digit "n" appears once and the number 1 appears for an extra time.

Now , we write  S₂ .

So ,Each term of K will appear 10 times in the units place and 10 times in the tens place ,

So , we get [tex]S_{2} = (n10^{n-1})K+1[/tex] ; and there are total "n" places ;

The denominator of K is written as [tex]D=2^{3} .3^{2} .5.7[/tex] .

For Sₙ to be an integer, [tex]n10^{n-1}[/tex] must be divisible by D , we must select "n" to be divisible by [tex]3^{2} .7[/tex]   .

And since need to find the smallest integer "n" , So , the n is [tex]3^{2} .7 = 63[/tex] .

Therefore , For Sₙ to be an integer , the smallest positive integer n is 63 .

The given question is incomplete , the complete question is

Let Sₙ be the sum of the reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive. find the smallest positive integer n for which Sₙ is an integer .

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Answer:

b = 8,3

Step-by-step explanation:

b + (-8,3) = 0

b - 8,3 = 0

b = 8,3

Answer:

........

Step-by-step explanation:

Answer:

3 = 1 + 1/2 + 2/2 + 1/2

The blank number is:

1

Step-by-step explanation:

2/2 = 1

1/2 + 1/2 = 2/2

3 = a + 1/2 + 2/2 + 1/2

3 = a + 1 + 1

3 = a + 2

3 - 2 = a

a = 1

The values of zα for the given significance levels are approximate:

(a) zα ≈ 2.33

(b) zα ≈ 1.34

(c) zα ≈ 0.54

To determine zα (also known as the critical value) for a given significance level α, we need to find the z-score that corresponds to the upper α percentage of the standard normal distribution. In other words, we are looking for the z-value that cuts off an area of α in the right tail of the standard normal curve.

The standard normal distribution has a mean (μ) of 0 and a standard deviation (σ) of 1.

To find zα, we can use a standard normal distribution table or a calculator that provides cumulative probability values for the standard normal distribution.

(a) α = 0.0089

For this case, we are looking for the z-score that corresponds to the upper 0.0089 percentage of the standard normal distribution. Using a calculator or standard normal distribution table, we find that zα ≈ 2.33.

(b) α = 0.09

In this case, we need to find the z-score that corresponds to the upper 0.09 percentage of the standard normal distribution. Again, using a calculator or standard normal distribution table, we find that zα ≈ 1.34.

(c) α = 0.707

For α = 0.707, we are interested in the z-score that corresponds to the upper 0.707 percentage of the standard normal distribution. Using a calculator or standard normal distribution table, we find that zα ≈ 0.54.

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The complete question is as follows:
Determine zα for the following. (Round your answers to two decimal places.)

(a) α = 0.0089

(b) α = 0.09

(c) α = 0.707

Please explain where and how you got the answer.

By using a trigonometric relation, we will see that the value of x on the right triangle is x = 53.4

We want to find the value of x on the given right triangle, which is one of the cathetus of the triangle (the adjacent cathetus of the shown angle).

We know one angle of 51°, and the opposite cathetus of that angle, which has a measure of 66 units.

Here we can use the trigonometric relation:

tan(a) = (opposite cathetus)/(adjacent cathetus)

Replacing the known values, we will get:

tan(51°) = 66/x

Solving that for x, we will get:

x = 66/tan(51°) = 53.4

The measure of the adjacent cathetus is 53.4 units.

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Answer:

3.5 cm long

Step-by-step explanation:

AB*1/2=7*1/2=3.5

Answer:

|AB'| = 3.5 cm

Step-by-step explanation:

Given:

To dilate the line segment by a scale factor r, multiply the original length of the line segment by the given scale factor:

[tex]\begin{aligned}\implies \sf |AB'|&=\sf |AB| \times r\\\\&=7 \times \dfrac{1}{2}\\\\&=\dfrac{7 \times 1}{2}\\\\&=\dfrac{7}{2}\\\\&=3.5\; \sf cm\end{aligned}[/tex]

W is an invariant sub-space under T if and only if all non-zero vectors in W are eigenvectors of T because T=αI,α∈F.

The vector is an entity with both magnitude and direction. The movement of an item between two points is described by a vector. The directed line segment can be used to graphically represent vector math.

Given that,

For each vector v ∈ V, there exists [tex]a_{v}[/tex] such that [tex]T_{v}=a_{v}v[/tex] (because [tex]T_{v}[/tex] ∈ span(v) ). Suppose there are vectors u, v∈V such that [tex]a_{u}\neq a_{v}[/tex]. Then

T(u+v)=Tu+Tv⇒[tex]a_{u+v}(u+v)=a_{u}u+a_{v}v[/tex]

which means (u,v) is linearly dependent (since both coefficients cannot be zero simultaneously, by assumption). Therefore, either [tex]a_{u}= a_{v}[/tex], and T is a scalar transformation, or V has a dimension of at most 1, which also implies Tx=αx, with constant α.

Hence, T=αI,α∈F

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Using the given function V(x) = 15,000(0.87)^x , the value of Mr.Dulaney's car 5 years after its purchase will be approximately equal to given option $7500.

A mathematical phrase, rule, or law that establishes the relation between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

A mathematical function is a rule that assigns a unique output, also called the function value, to each input value within a certain set called the domain. The output is determined by the instructions, also called the function rule, that defines the relationship between the input and output values. It can be represented by an equation, such as y = f(x), where x is the input, y is the output, and f is the function symbol. The graph of a function is a set of points, where each input in the domain corresponds to a unique output. It helps to express the relationship between two variables and allows to make predictions and analyze patterns in mathematical problems.

Given,

V(x) = 15,000(0.87)^x where x denotes number of years after its purchase.

So, to find the value of Mr. Dulaney's car 5 years after its purchase,

let x =5

so V(x) = 15,000(0.87)^5 = $7476.31

Which is approximately equal to given option , $7,500

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To write the point (1, 2) on a graph, you would first locate the point on the x-axis where x = 1, and then go up 2 units on the y-axis.

The point (1, 2) is on the Cartesian plane and it represents the coordinates of a point in the 2-D space. This point is located 1 unit to the right of the y-axis and 2 units above the x-axis.

It can be represented graphically as a point on a coordinate plane where the x-coordinate is 1 and the y-coordinate is 2.

On the graph, you can plot the point by first drawing the x and y axes and their respective scales, then place a dot on the point (1,2) which represents the coordinates of the point.

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Using the tangent side from trigonometric ratio, the angle of depression is 86.6 degrees

The angle created between the line of sight to a location below the horizontal line and the horizontal line of sight is known as the angle of depression.

The angle of depression that the balloon makes with the launch pad can be calculated using the trigonometric ratio.

Data;

Since we have the opposite and adjacent side, we can use the tangent of the angle to find the angle of depression.

tanθ = opposite / adjacent

substituting the values into the formula

tan θ = 10000 / 600

tan θ = 100 / 6

tan θ = 16.666

θ = tan⁻¹(16.666)

θ = 86.6°

The angle of depression is 86.6°

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The value of y'' at the point where x = 0 is 8.

A derivative is a mathematical concept that measures how much a function changes as its input (or independent variable) changes. It is often represented by the symbol "dy/dx" or "f'(x)", and is used to calculate the slope of a function at a particular point.

To find the value of y'' at the point where x = 0, we first take the derivative of the equation with respect to x. This gives us y' + 8exy' = 0. Then, we take the derivative of this equation with respect to x again, which gives us y'' + 8exy'' + 8ey' = 0. Substituting x = 0 into this equation gives us y'' + 0 + 8e(0) = 0, which simplifies to y'' = 8.

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Answer: If one of the roots of the equation 2x^2-bx-20=0 is -2.5, then by Vieta's Formulas, the other root is x = (20 + b)/4.

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

Given equation: 2x^2 - bx - 20 = 0

We are also given one of the solutions, which is -2.5.

We can start off by substituting -2.5 in place of x, in the given equation.

This is what it will look like:

2 * (2.5) ^2 - b (-2.5) - 20 = 0

After simplifying, the equation will now look like this:

12.5 + 2.5b - 20 = 0

Now, move all of the similar terms to one side of the equation:

2.5b = 20 - 12.5, which is basically 2.5b = 7.5

b = 7.5/2.5, which is b = 3

Now that we know what the value of "b" is, let's go back to the given equation (2x ^2 - bx - 20 = 0), and substitute "3" in place of "b".

It will look like this:

2x^2 - 3x - 20 = 0

We can now apply the Quadratic formula. The formula looks like this:

(-b ± √b^2 -4ac)

          2a

Substitute the values from the new equation into the formula:

3 ± √9 + 160

         4  

Simplify that:

3 ± 13

   4

You should now have two solutions:

x1 = 3 + 13,   which is x1 = 16/4 = 4            

         4

x2 = 3 - 13 , which is x2=-10/4, = -2.5

        4

Now, the root that was given to us at the start of the problem was -2.5, so the other solution is 4, which we just solved for.

I hope this helps!!

The value of a=17 cm and b=6 cm as FGHJ is a kite.

Kite has property their adjacent sides are equal. The top two sides of the kite are equal and the bottom two sides of the kite are equal.

Any quadrilateral with two sets of congruent successive sides is referred to as a kite (in contrast to a parallelogram where the opposite sides are congruent). Connecting points G and J, draw a section. Triangle GHJ and triangle GFJ are congruent. The information that GH = GF and FJ = HJ will be used.

FG=GH because of ∠F=∠H.

30=2a-4

2a=34

a=17 cm      

Similarly, ∠F=∠H

FJ=HJ

3b+6=24

3b=18

b=6 cm

Hence, The value of a=17 cm and b=6 cm

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Answer:

a=17 and b=6

Step-by-step explanation:

took the test

The vertex is (-5 , 5) , y-intercept is (0 , -20) and reflection of y-intercept across symmetry is (-10 , -20).  

What is parabola ?
A parabola is an approximately U-shaped, mirror-symmetrical plane curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line.

a curve made when a cone's surface collides with a plane that is perpendicular to a straight line: a curve created when a point moves in such a way that its separation from a fixed point equals its separation from a fixed line something with a bowl-like form.

Parabola, also known as an open curve or conic section, is formed when a right circular cone and a plane perpendicular to one of the cone's elements cross.

In the equation you provided, the corresponding values are:

a = -1

b = -10

c = -20

Plugging in the values to find the vertex yields:

- (-10)/(2*-1)

= 10/-2

= -5

This is the x-coordinate of the vertex

-x²-10x - 20

= -(-5)² - 10×(-5) - 20

= -25 +  50 - 20

= 5

∴The vertex is located at the point (-5 , 5)

The y-intercept when x = 0

-x² - 10x - 20

= -20

The y-intercept of the vertex at the point (0 , -20)

Since you have 2 points, look at the y-intercept and imagine a point reflected across the line of symmetry.

That point will be your last point, and is located at: (-10 , -20)

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Answer:84652646.4

Step-by-step explanation: