I need help can someone help ???? Plzzzz

Answer:

the answer is 16 . the explanation is that because if you have. 200 cm y axis it overcomes the x of other 80

Answer:

60

Step-by-step explanation:

Let's name "a number" "q."

The expression we can set up is 6+9q

Plug 6 in for q.

6+9(6)

6+54

60

According to the given data we have the following:

5280 ft

37.5%?

In order to calculate the 37.5% of 5280 ft we would have to make the following calculation:

37.5% can be expresses in decimals as 0.375.

Therefore 37.5% of 5280 ft.=5280 ft*0.375

37.5% of 5280 ft.=1980.

37.5% of 5280 ft. would be 1980

Answer:

40 cm equals 400 millimeters

I hope this helps you

Answer:

50% decrease

Step-by-step explanation:

130-65 = 65

65/130 = 0.5

0.5 x 100 = 50

The total number of workers that were studied can be found to be 139,340,000.

The percent of workers unemployed would be 5. 4 %.

Percentage of unemployed men is 5. 6 % and unemployed women is 5. 1%.

Number of employed workers :

= 74,624,000 + 64, 716, 000

= 139,340,000

Percentage unemployed :

= ( 4, 209,000 + 3,314,000 ) / 139,340,000

= 5. 4 %

Percentage of unemployed men :

= 4,209,000 / 74,624,000

= 5.6 %

Percentage of unemployed women:

= 3,314,000 / 64, 716, 000

= 5. 1 %

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The full question is:

a. How many workers were studied?

b. What percent of the workers were unemployed?

c. Compare the percent unemployed for the men and the women.

Answer:

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how "spread out" the values in a data set are.

Answer:

V = 3/8 * 1/8 * 5/8 cm^3 = 15 / 512 cm^3

Since all sides are evenly divisible by 1/8 and v = (1 / 8)^3 = 1 / 512 cm^3

N = V / v = (15 / 512) / (1 / 512) = 15 blocks

Example: cut 1/8 by 5/8 into 5 blocks

Cutting 1/8 by 5/8 could be done 3 times for a total  of 15 blocj\ks

Answer:

  156,240,000 miles

Step-by-step explanation:

The speed of light is about 186,000 mi/s. The distance is then ...

  (14 min)(60 s/min)(186,000 mi/s) = 156,240,000 mi

Mars was about 156 million miles from Earth.

Answer:7

Step-by-step explanation:

Answer:

X=7

Step-by-step explanation:

made a 100 on my quiz but i dont feel like puting my work in here and typing it

Option 2 is the correct graph for the function f(x) = \(4[(1/2)^{x}]\) .

Given ,

f(x) = \(4[(1/2)^{x}]\)

Mathematically the graph will of exponential in nature.

So,

Let us assume few values to understand the nature of graph.

Firstly,

Let x= 1

f(x) = \(4[(1/2)^{1}]\)

f(x) = 2

Let x = 2

f(x) = \(4[(1/2)^{2}]\)

f(x) = 1

Let x = 3

f(x) = \(4[(1/2)^{3}]\)

f(x) = 0.5

Thus from these values of f(x) corresponding to the values of x second graph will be correct .

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In the math club, there are 9 people.

Tables according to frequency distribution are created from the acquired data. Test scores, local weather data, volleyball match outcomes, student grades, etc. might all be included in the material. After data collection, information must be presented in a meaningful way to be understood. Showed a drastic that has been graphically represented using a relative frequency chart is a different mechanism.

Dot plots are used to create the frequency distribution below:

Age 9 = 2

Age 10 = 0

Age 11 = 1

Age 12 = 2

Age 13 = 4

So, there are nine members in the math club overall.

The math club has nine members as a result.

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The width of the rectangular rug is 13 feet and the length of the rectangular rug is 26 feet.

Area of a rectangle formula: A = L * W. A

rectangle's length and width are multiplied to produce its area.

A is the area, L is the length, and W is the width or girth, where

A = L * W.

The corresponding sides of the rectangular rug and the rectangular floor must be proportional if they are alike.

Let's use "x" to represent the rug's width. The floor measures 32 feet in length and 26 feet in width, and the length of the rug is 16 feet according to the details provided. Since the rug and the surface are comparable, we can establish the following ratio:

Rug width/floor width = rug length/floor length

x / 26 = rug's length / 32

We can cross-multiply and then solve for "x" to find the answer:

32x = 26 * Rug's length

x =  (26 * Rug Length) / 32

\(= \frac{26 * 16}{32} \\= \frac{26}{2} \\= 13\)

Therefore x ( the width of the rug) is = 13 feet.

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Complete question:

The rectangular rug is similar to the rectangular floor. If the floor of the room measures 32 feet in length and 26 feet in width, and the length of the rug is 16 feet, what is the width of the rug?

Answer:

P(X is less than 348) = 0.2148

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.3

Sample size = 1200

Let X be the random variable that obeys a binomial distribution. Then;

\(X \sim Bin(n = 1200,p =0.3)\)

The Binomial can be approximated to normal with:

\(\mu = np = 1200 \times 0.3 \\ \\ \mu= 360\)

\(\sigma = \sqrt{np(1-p) } \\ \\ \sigma = \sqrt{1200 \times (0.3)(1-0.3) } \\ \\ \sigma = 15.875\)

To find:

P(X< 348)

So far we are approximating a discrete Binomial distribution using the continuous normal distribution. 348 lies between 347.5 and 348.5

Normal distribution:

x = 347.5, \(\mu\) = 360, \(\sigma\) = 15.875

Using the z test statistics;

\(z = \dfrac{x - \mu}{\sigma}\)

\(z = \dfrac{347.5 - 360}{15.875}\)

\(z = \dfrac{-12.50}{15.875}\)

z = -0.7874

z ≅ - 0.79

The p-value for P(X<347.5) = P(Z < -0.79)

From the z tables;

P(X<347.5) = 0.2148

Thus;

P(X is less than 348) = 0.2148

The expression (9v⁴ + 2) + v²(v²w² + 2w³ - 2v²) - (- 13v²w³ + 7v⁴) is equivalent to v⁴w² + 15v²w³ + 2. Then the correct option is A.

The equivalent is the polynomial expressions that are in different forms but is equal to the same value.

The polynomial expression is given below.

(9v⁴ + 2) + v²(v²w² + 2w³ - 2v²) - (- 13v²w³ + 7v⁴)

By simplifying the polynomial expression, we have

(9v⁴ + 2) + (v⁴w² + 2v²w³ - 2v⁴) - (- 13v²w³ + 7v⁴)

9v⁴ - 2v⁴ - 7v⁴ + v⁴w² + 2v²w³ + 13v²w³ + 2

v⁴w² + 15v²w³ + 2

Thus, the correct option is A.

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Using the cosine ratio, the distance between Dimitri and Sarah is calculated as approximately 12.4 m.

The cosine ratio is a trigonometric ratio that represents the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle. It is calculated by dividing the length of the adjacent side by the length of the hypotenuse.

Using the cosine ratio, we have:

Reference angle (∅) = 72 degrees

Hypotenuse length = 40 m

Adjacent length = distance between Dimitri and Sarah = x

Plug in the values:

cos 72 = x/40

x = cos 72 * 40

x ≈ 12.4 [to one decimal place]

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The polynomial's zeros must be located using a method of your choice, and the linear expressions that produce those zeros must then be combined in order to describe the polynomial as a product of linear factors.

The term "triple zero" or "zero with multiplicity 3" is used to describe this. The power p governs the behaviour close to the x-intercept if a polynomial has a factor of the type (xh)p. A zero of multiplicity p is defined as x=h. The x-axis will be touched at zeros with even multiplicities on a polynomial function's graph.

A real number is multiplied by an imaginary unit, I whose feature i2 = 1 defines it as an imaginary number. Bi is an imaginary number, while b2 is its square. For instance, the square of the fictitious integer 5i is 25. Zero is regarded as both real and fictitious by definition.

You must first determine the polynomial's zeros using the method of your choice, and then combine the linear equations that result in those zeros. If you factor, you will arrive at the third degree polynomial, which must then be sorted through.

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Convert to polar coordinates, in which the circle's equation becomes

\(\left(\dfrac x5\right)^2+\left(\dfrac y5\right)^2=1\implies x^2+y^2=5^2\implies r^2=5^2\implies r=5\)

where \(x=5\cos\theta\) and \(y=5\sin\theta\), and we get the part of the circle in the first quadrant with \(0\le \theta\le\frac\pi2\).

So the integral is

\(\displaystyle\int_C(8x-3y)\,\mathrm ds=\int_0^{\frac\pi2}(8x(\theta)-3y(\theta))\sqrt{\left(\dfrac{\mathrm dx}{\mathrm d\theta}\right)^2+\left(\dfrac{\mathrm dy}{\mathrm d\theta}\right)^2}\,\mathrm d\theta\)

\(=\displaystyle\int_0^{\frac\pi2}(40\cos\theta-15\sin\theta)\sqrt{25\cos^2\theta+25\sin^2\theta}\,\mathrm d\theta\)

\(=\displaystyle25\int_0^{\frac\pi2}(8\cos\theta-3\sin\theta)\,\mathrm d\theta\)

\(=25(8\sin\theta+3\cos\theta)\bigg|_0^{\frac\pi2}=200-75=\boxed{125}\)

Line integral involves integrating a function along a curve

The value of the line integral is 125

The equation is given as:

\(\mathbf{(\frac{x}{5})^2 + (\frac{y}{5})^2 = 1}\)

Expand

\(\mathbf{\frac{x^2}{5^2} + \frac{y^2}{5^2} = 1}\)

Multiply through by 5^2

\(\mathbf{x^2 + y^2 = 5^2}\)

The equation of a circle is represented as:

\(\mathbf{(x - a)^2 + (y - b)^2 = r^2}\)

So, by comparison

\(\mathbf{r^2 = 5^2}\)

\(\mathbf{r = 5}\)

Where:

\(\mathbf{x = rcos\theta}\)

\(\mathbf{y = rsin\theta}\)

So, we have:

\(\mathbf{\int_c (8x - 3y)ds}\)

Because it is in the first quadrant (i.e. 0 to pi/2), the integrand becomes

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_0 (8x - 3y)rd\theta}\)

Convert to polar forms

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_0 (8x - 3y)\sqrt{x^2 + y^2}d\theta}\)

Substitute \(\mathbf{x = rcos\theta}\) and \(\mathbf{y = rsin\theta}\)

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c (8rcos(\theta) - 3rsin(\theta))\sqrt{(rcos(\theta))^2 + ( rsin(\theta))^2}d\theta}\)

Substitute 5 for r

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c (40cos(\theta) - 15sin(\theta))\sqrt{25cos^2\theta + 25sin^2\theta}\ d\theta}\)

Factor out 5

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c 5(8cos(\theta) - 3sin(\theta))\sqrt{25cos^2\theta + 25sin^2\theta}\ d\theta}\)

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c 5(8cos(\theta) - 3sin(\theta))\sqrt{25(cos^2\theta + sin^2\theta)}\ d\theta}\)

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c 5(8cos(\theta) - 3sin(\theta))5\sqrt{(cos^2\theta + sin^2\theta)}\ d\theta}\)

\(\mathbf{\int_c (8x - 3y)ds = \int\limits^{\frac{\pi}{2}}_c 25(8cos(\theta) - 3sin(\theta))\sqrt{(cos^2\theta + sin^2\theta)}\ d\theta}\)

\(\mathbf{\int_c (8x - 3y)ds =25 \int\limits^{\frac{\pi}{2}}_c (8cos(\theta) - 3sin(\theta))\sqrt{(cos^2\theta + sin^2\theta)}\ d\theta}\)

In trigonometry

\(\mathbf{cos^2\theta + sin^2\theta = 1}\)

So, we have:

\(\mathbf{\int_c (8x - 3y)ds =25 \int\limits^{\frac{\pi}{2}}_c (8cos(\theta) - 3sin(\theta))\sqrt{1}\ d\theta}\)

\(\mathbf{\int_c (8x - 3y)ds =25 \int\limits^{\frac{\pi}{2}}_0 (8cos(\theta) - 3sin(\theta))\ d\theta}\)

Integrate

\(\mathbf{\int_c (8x - 3y)ds =25 \times [ (8sin(\theta) + 3cos(\theta))\ } ]|\limits^{\frac{\pi}{2}}_0}\)

Expand

\(\mathbf{\int_c (8x - 3y)ds =25 \times ([ 8sin(\frac{\pi}{2}) + 3cos(\frac{\pi}{2})] - ([ (8sin(0) + 3cos(0)])}\)

\(\mathbf{\int_c (8x - 3y)ds =25 \times ([ 8\times 1 + 3\times 0)] - ([ (8\times 0 + 3\times 1])}\)

\(\mathbf{\int_c (8x - 3y)ds =25 \times ([ 8] - [ 3])}\)

\(\mathbf{\int_c (8x - 3y)ds =25 \times 5}\)

\(\mathbf{\int_c (8x - 3y)ds =125}\)

Hence, the value of the line integral is 125

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Answer:

y = -3x + 2

Step-by-step explanation:

use the slope formula to find the slope

replace x and y into slope intercept form with the slope you just found

Answer:

a.

1 + 2 + 1 + 2 + 6 + 9 + 13 + 5 = 39

b.

Final Scores | Frequency

       30                 1

       40                 2

       50                 1

       60                 2

       70                 6

       80                 9

       90                 13

       100                5

c.

\(\frac{9+13+5}{39}=\\\\\frac{27}{39}=\\\\69\)

69% of students scored 80 or greater.

The amount of loan that Molly needs after reducing the down payment and cash allowance is $38190.

What is a loan?

In a loan, a certain quantity of money is given to another person in exchange for the value or main amount being repaid at a later date. In many circumstances, the lender increases the principal value by adding interest or finance charges, which the borrower must pay in addition to the principal sum.

Loans may be made for a predetermined, one-time sum or as an open-ended line of credit with a cap of up to a certain amount. In addition to secured and unsecured loans, there are also commercial and personal lending options.

Given,

The amount of cash Molly saved for the purchase,

Down payment = $4500

The dealer's cash allowance = $4300

It is said that the dealer's cash allowance will come straight from her total.

Then the amount of loan she needs = 46990 - 4500 - 4300

                                                    = $38190

Therefore the amount of loan that Molly needs after reducing the down payment and cash allowance is $38190.

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Answer:

The message is S  E  C R  E  T     A G E N T       M A N

Step-by-step explanation:

This is a very easy exercise, follow the steps taken below:

Step 1: Find \(A^{-1}\)

\(A = \left[\begin{array}{ccc}1&2\\1&3\end{array}\right]\)

Note that If \(M = \left[\begin{array}{ccc}a&b\\c&d\end{array}\right]\)

then \(M^{-1} = \left[\begin{array}{ccc}a&-b\\-c&a\end{array}\right]\)

Therefore, \(A^{-1} = \left[\begin{array}{ccc}3&-2\\-1&1\end{array}\right]\)

Step 2: Find A⁻¹B ( i.e product of A and B)

\(B = \left[\begin{array}{cccccccc}29&39&45&2&17&54&26&29\\34&57&65&3&22&74&39&43\end{array}\right]\)

\(A^{-1} B = \left[\begin{array}{ccc}3&-2\\-1&1\end{array}\right] \left[\begin{array}{cccccccc}29&39&45&2&17&54&26&29\\34&57&65&3&22&74&39&43\end{array}\right]\)

\(A^{-1}B = \left[\begin{array}{cccccccc}19&3&5&0&7&14&0&1\\5&18&20&1&5&20&13&14\end{array}\right]\)

Step 3: Decode the message in the matrix above

The message will be decoded in this order:

Note that 0 stands for  empty space

19 5 3 18 5 20 0 1 7 5 14 20 0 13 1 14

S  E  C R  E  T     A G E N T       M A N

The message encoded is:  S  E  C R  E  T     A G E N T       M A N

Answer:

2 minutes

Step-by-step explanation:

The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel.  Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:

Since distance = rate times time, time = distance / rate.  In this particular case we have:

                                              2 km

time = distance / rate = ------------------- = (1/30) hr

                                           60 km/hr

(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes

Answer:

5 boxes each

Step-by-step explanation:

Given:

Slope m=2

The point,

Using point-slope formula,

Therefore, we get the equation,

Answer:105

Step-by-step explanation:

Answer:

3 chairs

Step-by-step explanation:

how many 1/6 are in 1/2

1/2 ÷ 1/6  ⇒  1/2 × 6/1  ⇒  6/2 or 3