A tabletop in the shape of a trapezoid has an area of 7,021 square centimeters. its longer base measures 131 centimeters, and the shorter base is 105 centimeters. what is the height?


urgent

Answer:

not similar

Step-by-step explanation:

Answer:

Step-by-step explanation:

The triangles are similar by SSS with a scale factor of 1/4

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The probabilities for:

a. P(48 <X <66) = 0.978.

b. P(X> 69) = 0.0618.

c. P(X <= 65)  = 0.8051

d. P(X < 60) = 0.5

a. P(48 < X < 66) can be approximated using the normal distribution as follows:

mean, μ = np = 150 × 0.4 = 60

standard deviation, σ = \(\sqrt{(np(1-p)) }\)= \(\sqrt{(150 * 0.4 * 0.6)\) = 5.81

We can standardize using the formula z = (x - μ) / σ to find the area under the standard normal distribution between the z-scores corresponding to x = 48 and x = 66:

z1 = (48 - 60) / 5.81 = -2.06

z2 = (66 - 60) / 5.81 = 1.03

Using a standard normal distribution table, we find the area between these z-scores to be approximately 0.978. Therefore, P(48 < X < 66) ≈ 0.978.

b. P(X > 69) can be approximated using the normal distribution as follows:

mean, μ = np = 150 × 0.4 = 60

standard deviation, σ = \(\sqrt{(np(1-p)) }\)= \(\sqrt{(150 * 0.4 * 0.6)\) = 5.81

We can standardize using the formula z = (x - μ) / σ to find the area under the standard normal distribution to the right of the z-score corresponding to x = 69:

z = (69 - 60) / 5.81 = 1.55

Using a standard normal distribution table, we find the area to the right of this z-score to be approximately 0.0618. Therefore, P(X > 69) ≈ 0.0618.

c. P(X <= 65) can be approximated using the normal distribution as follows:

mean, μ = np = 150 × 0.4 = 60

standard deviation,  σ = \(\sqrt{(np(1-p)) }\)= \(\sqrt{(150 * 0.4 * 0.6)\)= 5.81

We can standardize using the formula z = (x - μ) / σ to find the area under the standard normal distribution to the left of the z-score corresponding to x = 65:

z = (65 - 60) / 5.81 = 0.86

Using a standard normal distribution table, we find the area to the left of this z-score to be approximately 0.8051. Therefore, P(X <= 65) ≈ 0.8051.

d. P(X < 60) can be approximated using the normal distribution as follows:

mean, μ = np = 150 × 0.4 = 60

standard deviation, σ = sqrt(np(1-p)) = sqrt(150 × 0.4 × 0.6) = 5.81

We can standardize using the formula z = (x - μ) / σ to find the area under the standard normal distribution to the left of the z-score corresponding to x = 60:

z = (60 - 60) / 5.81 = 0

Using a standard normal distribution table, we find the area to the left of this z-score to be 0.5. Therefore, P(X < 60) ≈ 0.5.

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For A and B to be independent, the value of P(B) should be ≈ 1.224

For events A and B to be independent, the probability of their intersection (A ∩ B) must be equal to the product of their individual probabilities (P(A) * P(B)).

In this case, we have the following information:

P(A) = 0.49

P(A ∩ Bc) = 0.4

We need to determine the value of P(B) for which A and B are independent.

We can use the following equation:

P(A ∩ B) = P(A) * P(B)

However, we don't have the direct value of P(A ∩ B), but we have P(A ∩ Bc) and we can use the complement rule to obtain P(A ∩ B):

P(A ∩ B) = 1 - P(A ∩ Bc)

Now, substituting the known values:

1 - P(A ∩ Bc) = P(A) * P(B)

1 - 0.4 = 0.49 * P(B)

0.6 = 0.49 * P(B)

0.6 / 0.49 = P(B)

Approximately, P(B) = 1.224

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When music has two beats in each measure, it is in duple meter or 2/4 meter.

Duple meter is characterized by a strong emphasis on the first beat and a secondary emphasis on the second beat. It is commonly used in many musical genres, including marches, polkas, and certain fast-paced dance rhythms.

The time signature 2/4 indicates that there are two quarter note beats in each measure, with the quarter note receiving one beat. This meter creates a sense of regularity and stability, providing a foundation for rhythmic patterns and musical phrases. Duple meter often lends a lively and energetic feel to music, allowing for clear and predictable rhythmic patterns.

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Answer:

Step-by-step explanation:

1/2

Answer:

it's b. y= \(y= e^{b}+3\) on edg2020

Transformed functions are functions that are modified by some transformation. In this question the transformation of y=\(e^x\) that is  y = \(e^x\)+ 3.

Therefore, the transformation of the given function y= \(e^x\) that is "y = \(e^x\) + 3".

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Answer:

why do we need to hurry?

Step-by-step explanation:

Answer:

2+2=4

Step-by-step explanation:

The stopping distance for a car traveling at 55 mph is 60,500 feet.

The equation to solve this problem would look like the following

s = v²/k

The stopping distance s will increase (varies directly) as the velocity increases.

Putting in the values we know

45 = 30²/k

⇒ k = 45/900

⇒ k = 0.05

Now,

at 55 mph we would have

    s = 55²/0.05

⇒ s = 3025/0.05

⇒ s = 60,500

s = 60,500 feet to stop

Complete Question:

The stopping distance s of a car varies directly as the square of its speed v. If a car traveling at 30 mph requires 45ft to stop, find the stopping distance for a car traveling at 55 mph.

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Answer:

553/900

Step-by-step explanation:

x = 0.6144444........

Multiply both sides by 1000

1000x = 614.444.....

Multiply both sides by 100

100x = 61.444.....

Now subtract,

1000x  = 614.444....

100x   =   61.444.....

900x = 553

x = 553/900

Answer: 160+(W x 3)=195-(W x 2)

Step-by-step explanation:

I'm not 100% sure this is right but it should be!

Answer:

13m

Step-by-step explanation:

volume of sphere = \(\frac{4}{3} * pi * r^{3}\) = 3000π

4r^3/3 = 3000

r^3 =2250

r = ∛2250 = 13.10370 = 13

Answer:

Radius of the sphere is 13.1 m.

Step-by-step explanation:

Volume:

\({ \boxed{ \pmb{volume = { \bf{ \frac{4}{3}\pi {r}^{3} }}}}}\)

Substitute:

\({ \tt{3000\pi = \frac{4}{3} \times \pi \times {( {r}^{3}) } }} \\ \\ { \tt{ {r}^{3} = \frac{3000 \times 3}{4} }} \\ \\ { \tt{r = \sqrt[3]{ \frac{3000 \times 3}{4} } }} \\ { \tt{r = 13.1 \: m}}\)

Step-by-step explanation:

T0 = a³+4

T1 = a⁴x a¹ +4

T2= a³ + a³ + 4

T3= a⁴ + a⁴* a² + 4

T4= a⁴ + a⁴ x a¹ + 4

T5= a³ + a³ + a⁴+4

Answer:

hello,

Step-by-step explanation:

c(1)=5

c(2)=9

c(2)-c(1)=9-5=4

c(2)=9

c(3)=13

c(3)-c(2)=13-9=4

c(3)=13

c(4)=17

c(4)-c(3)=17-13=4

c(4)=17

c(5)=21

c(5)-c(4)=21-17=4

for n=1,2,...,k :

c(n+1)-c(n)=4 and c(n+1)=4*(n+1)+1=4n+5

c(1)=1

Answer:

x < 1

Step-by-step explanation:

First, subtract 5 from both sides of this inequality, obtaining:

2x < 2

Next, divide both sides by 2, obtaining:

x < 1

The process of adding the matrix is explained blow.

Matrices are powerful tools used to analyze data and solve complex equations.

A 3x3 matrix, or E₁₃, is a matrix composed of 3 rows and 3 columns. It can be used to perform various operations, including adding two rows together.

(a) To answer the first question, a 3x3 matrix E₁₃ can add row 3 to row 1 by performing a row operation. This involves taking the second row and adding it to the first, thus adding the values on each row together.

(b) To answer the second question, a 3x3 matrix E₁₃ can add row 1 to row 3 and at the same time add row 3 to row 1 by performing a row exchange operation. This results in a 3x3 matrix where each value in the first row is equal to the corresponding value in the third row.

(c) To answer the third question, a 3x3 matrix E₁₃ can add row 1 to row 3 and then add row 3 to row 1 by performing two separate row operation and then taking the third row and adding it to the first, thus adding the values of each row together again.

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Answer:

-8

Step-by-step explanation:

(x-3y=136) + (18x+3y=288) We collect both processes to make y's disappear

19x=-152

x=-8

The equation of the perpendicular line as required is; y = 2x -3.

Since the line in discuss is perpendicular to the given line whose slope is; -1/2. It therefore follows that the slope of the line to be determined is;

m = -1/(-1/2) = 2.

The equation of the required line can therefore be written as;

2 = (y-7)/(x-2)

2x -4 = y -7

Hence, y = 2x -3 is the equation of the line.

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Answer:

L= 12

Step-by-step explanation:

area= L×B

108= 9×L

108= 9L

Divide both sides by 9

108/9= 9L/9

L= 12

The position vector from (3, − 8,0) to ( − 9, − 7, − 6) is  (-12, 1, -6).

To find the position vector, we need to add this vector to the initial point (3, -8, 0). This gives us:
(3, -8, 0) + (-12, 1, -6) = (-9, -7, -6)
In mathematics, position vector refers to a vector that describes the position of a point relative to an origin point. In this question, we are asked to find the position vector that is equal to the vector from (3, -8, 0) to (-9, -7, -6).

To find the position vector, we need to add the vector from the initial point to the final point to the initial point itself. This gives us the endpoint of the vector, relative to the origin. The position vector is important in many applications, such as physics, engineering, and computer graphics, where it is used to describe the position of an object or point in space.

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A chord is a line segment joining two points on a circumference. If two different chords share one of their extremes then they form an angle known as an inscribed angle. The other extremes of these chords form an arc that is known as the intercepted arc of the inscribed angle. For example, in the picture you'll notice that chords AD and DB form the angle ADB and its intercepted arc is arcAB. The measure of an inscribed angle is half the aperture of its intercepted arc so we get:

Angle ACB also has arcAB as its intercepted arc. This means that we also have:

So angles ACB and ADB are congruent since they have the same measure. So as you can see, if two inscribed angles have the same intercepted arc they are congruent.

Angles CAD and CBD also share the same intercepted arc, arcCD. This means that this angles are also congruent.

ADB and CAD are not congruent because their intercepted arcs (arcAB and arcDC) are not the same. The same happens with BCA and CBA since their intercepted arcs are arcAB and arcBC.

The last pair of angles that we must analyze is the one composed by DEA and CEB. These two angles are formed at the intersection between two line segments. At this type of intersections four angles are formed with consecutive angles being supplementary and opposite angles being congruent. DEA and CEB are opposite angles since they share their vertex but not their sides. Therefore DEA and CEB are congruent.

Then the correct options are A, C and D.

Answer:

tanong mopo sa pagong!

シ︎シ︎シ︎

Answer:

enewan nya na q :(((

Step-by-step explanation:

First step tingin salamin
sabay miss u balik kana
ahuhuhuhuh

Answer: (5,5)

Step-by-step explanation:

The perpendicular to y=x has slope -1, and thus the equation of the perpendicular from (1,9) is \(y=-x+10\).

Finding the point where they intersect, since both equations are set equal to y, we know that -x+10=x, and thus x=5.

If x=5, then y=5 as well.

So, F has coordinates (5,5).

The output of the function can be calculated by plugging in 2 for x and evaluating the equation:\(f(2) = 2(2^3) + 5(2^2) - 7(2) + 4 = 16 + 20 - 14 + 4 = 26.\)

The Common Core standards for Pre-Calculus focus on the study of functions and their applications, as well as the development of a deeper understanding of the algebraic and geometric principles in the mathematical field. One of the core concepts covered in Pre-Calculus is the concept of polynomial functions. A polynomial function is an expression made up of terms that involve only constants, variables, and exponents. It is represented by the equation \(f(x) = ax^n + bx^n-1 + cx^n-2 + … + z\), where a, b, c, …, z are constants and n is a non-negative integer. To find the value of a polynomial function at a given value of x, the equation can be evaluated by plugging in the x value and calculating the output. For example, if a polynomial function is represented by the equation f(x) = 2x^3 + 5x^2 - 7x + 4, and the x value is 2, then the output of the function can be calculated by plugging in 2 for x and evaluating the equation: \(f(2) = 2(2^3) + 5(2^2) - 7(2) + 4 = 16 + 20 - 14 + 4 = 26.\)

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Complete question:

What is the output of the polynomial function f(x) = 2x^3 + 5x^2 - 7x + 4 when x = 2?

Answer:

You can identify symmetry by if on both sides it looks the same.

Answer:

The area of the triangle is 180 square inches

Step-by-step explanation:

The question gives us a triangle with the dimensions as

Base = 2 feet

Height = 15 inches

However the answer should be expressed in inches, which means we have to convert the measurements in feet to inches. Remember that 12 inches make one foot. Therefore, two feet would simply be

12 x 2

= 24 inches

With the dimensions now given as

Base = 24 inches

Height = 15 inches

Area of the triangle = ½B x H

Area of the triangle = ½ x 24 x 15

Area of the triangle = 12 x 15

Area of the triangle = 180 square inches

hope this helps

Answer:

-4z

Step-by-step explanation:

Hi student! Let me help you out.

_____________________

Note that, -3z and -z are like terms. This means we can combine them right off the bat, which gives us \(\mathrm{-4z}\).

\(\mathrm{-3z-z=-4z}\). -4z is our final answer.

Hope that this helped you! have a good day ahead.

Best Wishes!

\(\star\bigstar\underline{\underline{\overline{\overline{\textsf{Reach far. AIm high. Dream big.}}}}}\bigstar\star\)

◈◈-Greetings!-◆◆

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Answer:

-4z

Step-by-step explanation:

-3z-z

On combining like terms,

= -4z

Answer:

4 = 151.70

5a=75.85

Step-by-step explanation:

Answer:

7 and the remainder is 0

Step-by-step explanation:

Answer:

$2.73

Step-by-step explanation:

$ 0.39 x 7 lbs = $2.73

Answer:

$2.73

Step-by-step explanation:

y=0.39x

y=0.39(7)

y=$2.73