A pair of shoes was $5 but is now on sale for
$4. What is the percent discount?

Answer:

c

Step-by-step explanation:

now are you going to get 3 seconds out of a second

Answer:

C

Step-by-step explanation:

C dosen't even make sence, so I think it is C.

Answer:

The impulse on an object is equal to the change in momentum of the object. In this case, the ball's initial momentum is 10 kg * 15 m/s = 150 kg m/s. After the collision, the ball's final momentum is -10 kg * 23 m/s = -230 kg m/s.

The change in momentum of the ball is: -230 kg m/s - 150 kg m/s = -80 kg m/s.

So, the impulse on the ball is -80 kg m/s.

The Nearest tenth of a second, the flag is in the air for approximately 0.1 seconds before Zack catches it.

To determine the time the flag is in the air before Zack catches it, we can use the kinematic equation for vertical motion:

h = 16t^2 + vt + s

Where:

h is the height of the flag,

t is the time in seconds,

v is the initial vertical velocity of the flag,

s is the initial height of the flag.

In this case, the flag is thrown into the air from a height of 5 feet (s = 5) with an initial vertical velocity of 30 feet per second (v = 30). Zack catches it at a height of 7 feet (h = 7).

We can rewrite the equation as:

7 = 16t^2 + 30t + 5

To find the time (t) when the flag is at a height of 7 feet, we can rearrange the equation and solve for t. However, since this is a quadratic equation, we can also use the quadratic formula.

The quadratic equation in this case is:

16t^2 + 30t + 5 - 7 = 0

16t^2 + 30t - 2 = 0

Now, we can use the quadratic formula:

t = (-b ± √(b^2 - 4ac)) / (2a)

Applying the values from the quadratic equation, we have:

t = (-30 ± √(30^2 - 4 * 16 * (-2))) / (2 * 16)

Simplifying further:

t = (-30 ± √(900 + 128)) / 32

t = (-30 ± √1028) / 32

Using a calculator, we find two solutions:

t ≈ -1.08 seconds or t ≈ 0.06 seconds

Since time cannot be negative in this context, we discard the negative solution.

Therefore, to the nearest tenth of a second, the flag is in the air for approximately 0.1 seconds before Zack catches it.

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Answer:

7.82 for each person

Step-by-step explanation:

31.28/4=7.82

Answer:

the correct answer is 193

Step-by-step explanation:

25×1-0=25

25×2-1=49

49×2-1=97

97×2-1=193

Answer:

0.1028938

Step-by-step explanation:

Given the following :

Average gold production in Northern Nevada =3.2 grams per short ton (2000 pounds)

Value of gold is measured in Troy ounces (ozt)

1 Troy ounces = 31.1 grams(g)

Number of Troy ounces of gold extracted from one short ton of Nevada ore ; let the number be t:

1 ozt = 31.1 g

t = 3.2 g

Cross multiply :

31.1 × t = 3.2 × 1

31.1t = 3.2

t = 3.2 / 31.1

t = 0.1028938 ozt

Hence, On average, 0.1028938 ozt of gold is extracted from one short ton of Nevada ore

When compared to green and yellow, which have diameters of 6 and 8, respectively, blue has a 1.5 cm diameter.

A circle is created in the plane by each point that is a specific distance from another point (center). Thus, it is a curve made up of points that are separated from one another by a defined distance in the plane. Additionally, it is rotationally symmetric about the center at every angle. Every pair of points in the plane of a circle, which is a closed two-dimensional object, are equally separated from the "center," and a line through the circle generates a specular symmetry line. Additionally, it is rotationally symmetric about the center at every angle.

given

diameter green = 6 cm

diameter yellow = 8 cm

diameter of total = 13 cm

diameter of blue = diameter of total - ( diameter yellow + diameter green )

= 1.5 cm

When compared to green and yellow, which have diameters of 6 and 8, respectively, blue has a 1.5 cm diameter.

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Answer:

Jada spent 3 hours and 15 minutes at the state fair.

Step-by-step explanation:

She started at 8:45 am and left at 11:00 am.

So 8:45 to 9 is 15 minutes.

So how far away is 9 am to 11 am?

11 - 9 = 3

3 hour difference

But remember to add the 15 minutes from the 8:45 to 9

Jada spent 3 hours and 15 minutes at the state fair.

Answer:

A

Step-by-step explanation:

that is just straight forward work :

we group all like terms together (after all, addition and multiplications are commutative operations) :

6a - 2a + a - 4b - 3b + c = 5a - 7b + c

Answer:

Step-by-step explanation:

We can use the DuPont model to calculate the ROE (Return on Equity):

ROE = Profit margin * Total assets turnover * Equity multiplier

Substituting the given values, we get:

ROE = 0.085 * 1.5 * 1.8 = 0.2295 or 22.95%

Therefore, Precision Aviation's ROE was 22.95%.

Answer:

37

Step-by-step explanation:

14×1

24×2

42×3

42-5 = 37

Answer: 4

-5+4=-1

-1+4=3

3+4=7

I hope this is good enough:

Answer:

the answer is 2 :)

have a good day !!

Step-by-step explanation:

Answer:  879.20 km²

Step-by-step explanation:

The diameter of the big circle is 2(10) + 18 = 38

divide the diameter by 2 to get the radius (r) = 19

Area (A) = π·r²

             = π(19)²

             = 361π

The diameter of the small circle is 18

divide the diameter by 2 to get the radius (r) = 9

Area (A) = π·r²

             = π(9)²

             = 81π

The area of the shaded region is the difference between the big circle and the small circle.

\(Area_{shaded}=A_{big}-A_{small}\)

                 = 361π - 81π

                 = 280π

                 = 280(3.14)

                 = 879.20

Answer:

879.20 km²

Step-by-step explanation:

Shaded area= Area of whole circle- area of white circle

Area of circle= πr²

Radius of whole circle= 10+18/2= 19 km

Area of whole circle= 3.14*(19 km)²= 1133.54 km²

Are of white circle= 3.14*(9 km)²= 254.34 km²

Shaded area= 1133.54 km²- 254.34 km²= 879.20 km²

Answer is  879.20 km²

The value of the expression \(2(cos^4 60 + sin^4 30) -(tan^2 60 + cot^2 45) + 3\times sec^2 30 is 33/4.\)

Let's simplify the expression step by step:

Recall the values of trigonometric functions for common angles:

cos(60°) = 1/2

sin(30°) = 1/2

tan(60°) = √(3)

cot(45°) = 1

sec(30°) = 2

Substitute the values into the expression:

\(2(cos^4 60 + sin^4 30) - (tan^2 60 + cot^2 45) + 3sec^2 30\)

= \(2((1/2)^4 + (1/2)^4) - (\sqrt{(3)^2 + 1^2} ) + 3(2^2)\)

= 2(1/16 + 1/16) - (3 + 1) + 3*4

= 2(1/8) - 4 + 12

= 1/4 - 4 + 12

= -15/4 + 12

= -15/4 + 48/4

= 33/4

Therefore, the value of the expression \(2(cos^4 60 + sin^4 30) -(tan^2 60 + cot^2 45) + 3\times sec^2 30 is 33/4.\)

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Step-by-step explanation:

please mark me as brainlest

Answer:

The helicopter is 27.38 m far off the ground

Step-by-step explanation:

The drawing shown in the image below has all the measures and variables needed to solve the problem.

We need to find R, the height of the helicopter. We'll use the law of sines to find the length of side a.

\(\displaystyle \frac{28}{\sin X}=\frac{a}{\sin 54^\circ}\)

The angle X is the measure needed to complete 180°:

X = 180° - 54° - 62° = 64°

Solving for a:

\(\displaystyle a=\frac{28}{\sin 64^\circ}\cdot \sin 54^\circ\)

Calculating:

a = 31.11 m

Now using the sine ratio in the right triangle to the left side:

\(\displaystyle \sin 62^\circ=\frac{R}{a}\)

Solving for R:

\(R=a\sin 62^\circ\)

R=31.11*0.88

R = 27.38 m

The helicopter is 27.38 m far off the ground

Answer:

20 percent

Step-by-step explanation:

\(\frac{400}{500}\)\(=0.8\)

\(1-0.8=0.2\)

This means that 20 percent off of 500 is 400.

Answer:

The answer should be 20%

Step-by-step explanation:

Hope this helps

a. The chart is prepared below.

b. At the end of 4 years, Ross still owes his parents $1,576.92.

To solve this problem, we need to calculate the balance of Ross's loan at the end of each year.

The balance for each year can be calculated by subtracting the yearly payment from the balance at the beginning of the year and adding the interest earned for the year.

The interest for each year is calculated by multiplying the balance at the beginning of the year by the annual interest rate of 3.2%.

Here are the steps for calculating the balance for each year:

Year 1:

Beginning balance = $2,500.00

Interest for the year = $2,500.00 x 0.032 = $80.00

Ending balance = $2,500.00 + $80.00 - $300.00 = $2,280.00

Year 2:

Beginning balance = $2,280.00

Interest for the year = $2,280.00 x 0.032 = $72.96

Ending balance = $2,280.00 + $72.96 - $300.00 = $2,052.96

Year 3:

Beginning balance = $2,052.96

Interest for the year = $2,052.96 x 0.032 = $65.76

Ending balance = $2,052.96 + $65.76 - $300.00 = $1,818.72

Year 4:

Beginning balance = $1,818.72

Interest for the year = $1,818.72 x 0.032 = $58.20

Ending balance = $1,818.72 + $58.20 - $300.00 = $1,576.92

Here's a table that shows the details:

Year ,principal ,Interest rate, interest, Payment ,annual owing

1 $2,500.00 $80.00 $300.00              $2,280.00

2 $2,280.00 $72.96 $300.00              $2,052.96

3 $2,052.96 $65.76 $300.00               $1,818.72

4 $1,818.72         $58.20  $300.00       $1,576.92

b. At the end of 4 years, Ross still owes his parents $1,576.92.

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Answer:

There is not enough evidence to conclude that the data supports the idea that more than 50% of people plan on voting for the levy

Step-by-step explanation:

Sample size, n = 150

Number of people that plan on voting for the levy, X = 78

Proportion of people that plan on voting for the levy:

\(\bar{p} = X/n\\\bar{p} = 78/150\\\bar{p} = 0.52\)

The study is to determine whether or not the data supports the idea that more than 50%(0.5) of people plan on voting for the levy

The null and alternative hypotheses are:

\(H_0: p \leq 0.5\\H_a: p > 0.5\)

Calculate the test statistics:

\(t_s = \frac{\bar{p} - p}{\sqrt{\frac{p(1-p)}{n} } } \\t_s = \frac{0.52-0.5}{\sqrt{\frac{0.5(1-0.5)}{150} } } \\t_s = 0.49\)

For a test statistic \(t_s = 0.49\), the p-value = 0.3121

The significance value, \(\alpha = 0.10\)

Since the p-value(0.3121) is greater than α(0.10), the null hypothesis \(H_0\) will be accepted.

This means that there is not enough evidence to conclude that the data supports the idea that more than 50% of people plan on voting for the levy

Answer:

The ANSWER on top is WRONG!!!!

Correct answer is: 5,5√3

Step-by-step explanation:

I got it right please hook me up with a 5 star and a thanks!

The point lies on circle C is,

⇒  (5, 5√3)

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Given that;

Circle C is centered at the origin.

And, Point Q (10, 0) lies on circle C.

Now, The equation of circle with center origin is,

⇒ (x - 10)² + y² = r²

Here, We have;

⇒ Radius = 10 units

Hence, Equation of circle is,

⇒ (x - 10)² + y² = 100

Now, By options;

Point lies on the circle is satisfy the equation of circle;

Let the point = (5, 5√3)

⇒ (x - 10)² + y² = 100

⇒ (5 - 10)² + (5√3)² = 100

⇒ 25 + 75 = 100

⇒ 100 = 100

Thus, The point lies on circle C is,

⇒  (5, 5√3)

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Answer:

pppppppppppppppppppppppppppppppppppppppppp

You'll need to write your question a bit clearer. It's difficult to understand because a lot of it seems jumbled together.

\((\stackrel{x_1}{-3}~,~\stackrel{y_1}{-11})\hspace{10em} \stackrel{slope}{m} ~=~ 4 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-11)}=\stackrel{m}{ 4}(x-\stackrel{x_1}{(-3)}) \implies y +11 = 4 ( x +3) \\\\\\ y+11=4x+12\implies {\Large \begin{array}{llll} y=4x+1 \end{array}}\)

The equation is:

Work/explanation:

Recall that the point slope formula is \(\rm{y-y_1=m(x-x_1)}\),

where m is the slope and (x₁, y₁) is a point on the line.

Plug in the data:

\(\rm{y-(-11)=4(x-(-3)}\)

Simplify.

\(\rm{y+11=4(x+3)}\)

Simplified to slope intercept:

\(\rm{y+11=4x+12}\)

\(\rm{y=4x+1}\) <- this is the simplified slope intercept equation

Answer:

12

Step-by-step explanation:

a=3b

b=2c

c=4d

a*c/b*d = (3(2(4d)))*(4d)/(2(4d))*d

            = 96d^2/8d^2

            = 12

Answer:

6

Step-by-step explanation:

Prime factorization of 60: 2 • 2 • 3 • 5

Prime factorization of 78: 2 • 3 • 13

Prime factorization of 66: 2• 3• 11

Common factors = 2* 3 = 6

Answer:

Answer:

Order from Least to Greatest

3/8 < 2/5 < 2/3 < 3/4

Step-by-step explanation:

Answer:

129 degrees

Step-by-step explanation:

So you know that AZC = 90 and CZB = 39, so all you have to do to find AZB is 90 + 39 = 129 degrees.

Answer:

1029

Step-by-step explanation:

d=s*t

s=343m/s

t=3s

=343m/s*3s

= 1029