please help!! will mark brainlyist!!

The time period of the given waveform is 2 units time

From the waveform,

Each units represent one units

The time period is the time taken for waveform to complete one cycle.

Here we have to find the time taken for the given wave to complete one cycle.

Here at t = 0 the wave reaches its positive peak point

At t = 1, the wave reaches its negative peak point

At t = 2, the wave reaches its positive peak point again

Therefore, in this waveform, the wave took 2 units time to complete one cycle

The time period = 2 units time

Hence, the time period of the given waveform is 2 units time

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If one card is drawn randomly from a deck, then the probability that it is not a face card is 76.9%

Probability

Probability refers the possible way of getting the required event.

Given,

A standard deck of cards has 52 cards of four different suits (diamonds, spades, hearts, clubs). Each suit consists of numbered cards 1 (Ace) to 10, followed by Jack, Queen and King (face cards).

Here we need to find the probability of getting not a face card and we have to round off the resulting value to the tenth percent.

We know that,

Total number of cards = 52

Number of suits = 4

Number of cards in each suit = 13

Number of face cards in each suit = 3

Therefore, the total number of face cards in the deck is calculated s,

=> 3 x 4

=> 12

Therefore, the probability of getting not a face card is

=> (52 - 12)/52

=> 40/52

When we simplify this one then we get,

=> 0.7692

When we convert this into percent and round of to the nearest tenth then we get the probability of getting not a face card is

=> 76.9%.

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The gradient will only be equal to 3 if the value of d is 7.

If we have two points (a, b) and (c, d), the gradient of the segment with these endpoints is:

G = (d - b)/(c - a)

Here the endpoints are (5, 9) and (d, 15), and the gradient is 3, so we can write the equation:

3 = (15 - 9)/(d - 5)

3*(d - 5) = 6

3d - 15 = 6

3d = 15 + 6 = 21

d = 21/3

d = 7

The value of d is 7.

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Answer:

Red paint  = 12.5 gallons

Blue paint = 7.5 gallons

Step-by-step explanation:

The given ratio of red paint to blue paint is:

Let x be the number of gallons of purple paint.

Therefore, the expression for each color of paint needed per x gallons of purple paint is:

[tex]\implies \textsf{Red\;paint $=\dfrac{5}{8}x$}[/tex]

[tex]\implies \textsf{Blue\;paint $=\dfrac{3}{8}x$}[/tex]

To calculate the number of gallons of red and blue paint needed to make 20 gallons of purple paint, substitute x = 20 into the found expressions:

[tex]\implies \textsf{Red\;paint $=\dfrac{5}{8} \times 20=\dfrac{100}{8}=12.5$}[/tex]

[tex]\implies \textsf{Blue\;paint $=\dfrac{3}{8}\times 20=\dfrac{60}{8}=7.5$}[/tex]

Therefore, the number of gallons of paint that should be used are:

The estimated sum of the given numbers using the range method is 20.1.

We are given three numbers. The numbers are 8.94, 2.16, and 9.02. All the given numbers are decimal numbers. We need to estimate the sum of all the numbers. The approximate value of each number is calculated below.

8.94 ≈ 8.9

2.16 ≈ 2.2

9.02 ≈ 9.0

Let the estimated sum of the given number be represented by the variable "E".

E = 8.9 + 2.2 + 9.0

E = 20.1

The actual sum of the given numbers is given below.

A = 8.94 + 2.16 + 9.02

A = 20.12

We can see that the estimated sum is very accurate as compared to the actual sum.

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The additional number of days that is required to complete the rest of the work in mixed fraction is equal to 4 4/11 days.

First of all, we would determine the number of work left for Ann after two (2) working days:

In one (1) day, the amount of work that would be done by Ann alone is given by 1/10 days. Therefore, the amount of work that would be done by Ann alone in two (2) days is given by 2/10 or 1/5 days.

For the number of work left, we have:

Work left = 1 - 1/5

Work left = 4/5 days.

Similarly, the amount of work that would be done by Ben alone in one (1) day is given by 1/12 days.

Therefore, the combined work rate of both Ann and Ben is given by:

Combined work rate = 4/5 + 1/12

Combined work rate = 11/60

For the additional number of days required to complete the rest of the work, we have:

Additional days = 4/5 ÷ 11/60

Additional days = 4/5 × 60/11

Additional days = 4 × 12/11

Additional days = 48/11

Additional days = 4 4/11 days.

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The pressure at an altitude of 5000 m if The atmospheric pressure at sea level is about 101 kilopascals. For every 1000-m increase in altitude, the pressure decreases by about 11.5% is  58.08 kPa.

A percentage, often known as percent, is a division by 100. Percentage, which means "per 100," designates a portion of a total sum. 45 out of 100 is represented by 45%, for instance. Finding the percentage of a whole in terms of 100 is what percentage calculation is. Both manual calculation and the use of internet calculators are options.

Given:

The atmospheric pressure, P = 101 kPa,

For every 1000 meters, the pressure decreases by 11.5%,

So at the height of 5000 meter, the % decrease will be 5 × 11.5 = 57.5%,

Now let the 57.5% of 101 kPa be x then,

x = 57.5/100 × 101  kPa,

x = 58.08 kPa,

Therefore, the pressure at an altitude of 5000 m if The atmospheric pressure at sea level is about 101 kilopascals. For every 1000-m increase in altitude, the pressure decreases by about 11.5% is  58.08 kPa.

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Answer: 250000

Step-by-step explanation:

multiple 10 4 times then multiply 25 at the end

When the radius is 9cm, it increases at a rate of 0.06 cm per second.

We assume the ballon is a perfect sphere. Remember that the volume of a sphere as a function of the radius is given by:

V = (4/3)*3.14*(R)³

When the radius is R = 9cm, the volume is:

V =  (4/3)*3.14*(9cm)³ = 3,052.08 cm³

Isolating the radius as a function of the volume, we get:

R = ∛((3/4*3.14)*V)

And we know that the volume increases at a constant rate of 6cm³/s, if we assume that the initial volume is 3,052.08 cm³ then we can write the radius as a function of time as:

R(t) = ∛((3/4*3.14)*(3,052.08 cm³ + 6cm³/s*t))

Where t is the time in seconds.

Now we need to differentiate this and evaluate in t = 0.

R'(t) = (1/3)*(3/4*3.14)*(3,052.08 cm³ + 6cm³/s*t)^(-2/3)* (6cm³/s*3/4*3.14)

Evaluating in t = 0 we get:

R'(0) = (1/3)*(3/4*3.14)*(3,052.08 cm³ + 6cm³/s*0)^(-2/3)* (6cm³/s*3/4*3.14)

       =  (1/3)*(3/4*3.14)*(3,052.08 cm³)^(-2/3)* (6cm³/s*3/4*3.14) = 0.06 cm/s

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To find the distance between the points shown we subtract each point and the x-axis

Distance between two points is the length of the line segment that connects the two points in a plane. The formula to find the distance between the two points is usually given by d=√((x2– x1)² + (y2 – y1)²). This formula is used to find the distance between any two points on a coordinate plane or x-y plane.

Since the two points are on the same coordinate on the x -axis

To find the distance between the two points we subtract the y coordinates of the two points and the x axis.

In conclusion the distance between the two points is found by subtracting the two points and the x -axis

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The sides and angles of the right triangle are as follows:

A right tangle triangle is a triangle that has on e of its angles as 90 degrees. The sides of a right triangle can be named based on the position of the angles.

The sides includes opposite side, adjacent side and hypotenuse side. The longest side of a right angle triangle is the hypotenuse side.

The sides of the right angle triangle can be found using trigonometric ratios as follows:

sin 85 = opposite / hypotenuse

sin 85 = a / 8

a = 8 sin 85

a = 7.96955758473

a = 8.0

cos 85 = adjacent / hypotenuse

cos 85 = b / 8

b = 8 cos 85

b = 0.69724594198

b = 0.7 units

Angle B = 180 - 90 - 85 = 5 degrees.

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The car was sold for 3429.5 cents and the percent discount from the original price is 14.265%.

According to the question,

We have the following information:

Beginning on day one, the owner discounts the price by 5% each day until it sells. On the third day the car sells. And the original price of the model car was $40.

The first day:

40*5/100

200/100

2

The price on the first day = $38

The second day:

38*5/100

190/100

1.9

The price on the second day = 38-1.9

The price on second day = 36.1

The third day:

36.1*5/100

180.5/100

1.805

The price on third day = $34.295 (36.1-1.805)

1 dollar = 100 cents

Price of car in cents = 3429.5 cents

B) Percent discount from the original price:

Let's take it to be x.

40 - (40x/100) = 34.295

-40x/100 = 34.295-40

-40x/100 = -5.705

40x = 570.5

x = 570.5/40

x = 14.265%

Hence, the car was sold for 3429.5 cents and the percent discount from the original price is 14.265%.

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Answer:

0.000348 (rounded)

Step-by-step explanation:

Please tell me if this is wrong.

The length of side CA is right triangle ABC, 8.86 centimeters

In this question, we have been given triangle ABC has a right angle at C.

This means, AB is the hypotenuse of right triangle ABC.

measure of angle A = 41 degrees

and the length of side BC = 7.7 centimeters

We need to find length of CA

Consider sine of angle A.

sin(A) = opposite side/hypotenuse

sin(41°) = BC/AB

0.6561 = 7.7 / AB

AB = 7.7/0.6561

AB = 11.74

Applying Pythagoras theorem,

AB² = BC² + AC²

11.74² = 7.7² + AC²

AC² = 11.74² - 7.7²

AC = √(78.53)

AC = 8.86 centimeters

Therefore, the length of side CA is right triangle ABC, 8.86 centimeters

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This question requires you to find simple interest. Total money in the account after 10 years is $189,000

The total money can be calculated as follows:

Given,

=Deposit×Interest×Year

=18,000×8.5%×10

=18,000×[tex]85/100[/tex]×10

=$171,000

=$171.000+$18.000

=$189,000

Hence, the simple interest or total money in the account after 10 years without any withdrawals of additional deposits is $189,000.

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The amount of money in the account after 10 years will be $42113.64.

Compound interest is applicable when there will be a change in the principle amount after the given time period.

For example, if you give anyone $500 at the rate of 10% annually then $500 is your principle amount. After 1 year the interest will be $50 and hence principle amount will become $550 now for the next year the interest will be $550, not $500.

As per the given,

Principle amount P = $18000

Rate of interest r = 8.5% = 0.085

Time t = 10

By continuous compounding interest formula,

P = (18000)[tex]e^{0.085\times10}[/tex]

P = $42113.64

Hence "The amount of money in the account after 10 years will be $42113.64".

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Answer:

----------------------------------

Answer:

$1580.69

Step-by-step explanation:

Monthly Payment Formula

[tex]\sf PMT=\dfrac{Pi\left(1+i\right)^n}{\left(1+i\right)^n-1}[/tex]

where:

Given:

Substitute the values into the formula to calculate the monthly payment:

[tex]\implies \sf PMT=\dfrac{12000(0.00415)\left(1+0.00415\right)^{60}}{\left(1+0.00415\right)^{60}-1}[/tex]

[tex]\implies \sf PMT=\dfrac{49.8\left(1.00415\right)^{60}}{\left(1.00415\right)^{60}-1}[/tex]

[tex]\implies \sf PMT=\dfrac{63.84764727}{0.2820812705}[/tex]

[tex]\implies \sf PMT=226.3448656[/tex]

Therefore, the total payments over the life of the loan is the monthly payment multiplied by the total number of months:

[tex]\implies \sf 226.3448656 \times 60=\$13580.69[/tex]

To calculate how much interest Jessie pays over the life of the loan, subtract the original loan amount from the total payments amount:

[tex]\implies 13580.69-12000=\$1580.69[/tex]

Therefore, the interest Jessie will pay over the life of the loan is $1580.69.

The kite's elevation relative to the ground is 6.45 feet.

Elevation simply means the height above sea level.

In this case, Jose flies a kite 17 1/2 ft above the ground and he increases its elevation by 4 3/4 ft by letting out some strung. and then changes its elevation by - 15.8 ft.

This will be illustrated as:

= 17.5 + 4.75 - 15.8

= 6.45 ft

The elevation is 6.45 feet.

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Answer:

x < - 4 or x > 4

Step-by-step explanation:

given an inequality of the type| x | > a , then the solution is in the form

x < - a or x > a

thus

- 2x < - 8

divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.

x > 4

OR

- 2x > 8

divide both sides by - 2, reversing the symbol

x < - 4

solution is x < - 4 or x > 4

Answer:

The answer can be expressed in two types of forms.

INEQUALITY FORM:  x < -4  or  x > 4

INTERVAL NOTATION:  ( –∞, –4) (4, ∞ )

Step-by-step explanation:

1. Isolate the variable "x" by dividing each side by factors that do not contain the variable "x."

2. Write |-2x|>8 as a piece:

TOP: {-2x > 8    x ≤ 0  / BOTTOM: {2x > 8   x > 0}

3. Divide each term by -2, then simplify.

x < -4

4. Divide each term by 2, then simplify.

x > 4

5. Find the union of the solutions.

Between the previous balance method and the daily balance method, the method of calculating Yvonne's June finance charge that will result in a greater finance charge is:

Using the previous balance method to compute the finance charge, the beginning balance is added to purchases minus payments.  Then the APR is applied to the sum.

The daily balance method ensures that an average daily balance is computed for the billing cycle and then the APR is applied to the average to compute the finance charge.

Date   Transaction             Amount ($)   Balance     Daily Balance

6/1      Beginning balance    925.43      $925.43  $5,552.58 ($925.43 x 6)

6/7     Payment                       62.74      $862.69     3,450.76 ($862.69 x 4)

6/11    Purchase                      28.27      $890.96     8,909.60 ($890.96 x 10)

6/21   Purchase                      50.00      $940.96    9,409.60 ($940.96 x 10)

Total                                                        $27,322.54

Average daily balance = $910.75 ($27,322.54)

APR = 17.79%

MPR = 1.4825% (17.79%/12)

Previous balance method = $13.95 ($940.96 x 1.4825%)

Average daily balance = $13.50 ($910.75 x 1.4825%)

Difference = $0.45 ($13.95 - $13.50)

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The following table details her credit card transactions in the month of June.

Date   Transaction             Amount ($)

6/1      Beginning balance    925.43

6/7     Payment                       62.74

6/11    Purchase                      28.27

6/21   Purchase                      50.00

Between the previous balance method and the daily balance method, which method of calculating Yvonne's June finance charge will result in a greater finance charge, and how much greater will it be?

a. The daily balance method will have a finance charge $0.21 greater than the previous balance method.

b. The daily balance method will have a finance charge $0.53 greater than the previous balance method.

c. The previous balance method will have a finance charge $0.45 greater than the daily balance method.

d. The previous balance method will have a finance charge $0.40 greater than the daily balance method.

Deondra read at rate 40 pages per hour.

What is the meaning of the rate?

The rate at which something occurs or changes, as well as the quantity or frequency with which it does so over a period of time.

What is the unitary method?

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

Given that, Deondra read 18 pages in 2/5 of an hour.

Use unitary method to calculate the required value:

In 2/5 hour, she read 18 pages.

In 1 hour, she read 18/(2/5) pages.

In 1 hour, she read 18 × (5/2) pages = 40 pages.

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Answer:

350 in. squared

Step-by-step explanation:

The equation for the nth term of the arithmetic sequences are:

a_n = -11 + 4n and a_n = -10 + 2n where n is an positive integer.

What is the arithmetic sequence?

A series of numbers called an arithmetic progression or arithmetic sequence has a constant difference between the terms.

The formula of nth term of an arithmetic sequence is a_n = a + (n-1) d

The arithmetic sequence is -7, -3, 1, ....

The first term is a = -7.

The common difference is d = (-3)-(-7) = 1 - (-3) = 4.

The nth term of an arithmetic sequence is

a_n = -7 + (n-1) 4

a_n = -7 + 4n -4

a_n = -11 + 4n

The arithmetic sequence is -8, -6, -4, ....

The first term is a = -8.

The common difference is d = (-6)-(-8) = -4 - (-6) = 2.

The nth term of an arithmetic sequence is

a_n = -8 + (n-1) 2

a_n = -8 + 2n - 2

a_n = -10 + 2n

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256 805 - 136.667 ≈ 256 668.333

The difference is approximately 256 668.333

1. The unpaid balance after 12 months of paying $546.61 for borrowing $81,000 for 27 years at 6.8% is $79,915.29.

2. During this period, the interest she paid was $5,474.61.

The total payment made, including interest and principal, for 12 months is the product of the monthly payments and 12 months.

From the amortization schedule from an online finance calculator at month 12, we can deduce that the loan balance is $79,915.29.

When this balance is subtracted from the loan, the difference is the principal repayment so far.

N (# of periods) = 324 months (27 years x 12)

I/Y (Interest per year) = 6.8%

PV (Present Value) = $81,000

PMT (Periodic Payment) = $-546.61

Results:

Sum of all periodic payments = $-6,559.32 ($546.61 x 12)

Total Interest for six months = $5,474.61

1 $81,000.00 $-546.61 $459.00 $-80,912.39

2 $80,912.39 $-546.61 $458.50 $-80,824.28

3 $80,824.28 $-546.61 $458.00 $-80,735.68

4 $80,735.68 $-546.61 $457.50 $-80,646.57

5 $80,646.57 $-546.61 $457.00 $-80,556.96

6 $80,556.96 $-546.61 $456.49 $-80,466.84

7 $80,466.84 $-546.61 $455.98 $-80,376.21

8 $80,376.21 $-546.61 $455.47 $-80,285.06

9 $80,285.06 $-546.61 $454.95 $-80,193.40

10 $80,193.40 $-546.61 $454.43 $-80,101.22

11 $80,101.22 $-546.61 $453.91 $-80,008.52

12 $80,008.52 $-546.61 $453.38 $-79,915.29

Total payment at $546.61 x 12 months = $6,559.32

Principal repayment for 12 months = $1,084.71 ($81,000 - $79,915.29)

Interest paid for 12 months = $5,474.61 ($6,559.32 - $1,084.71)

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Answer:

ubtract

36

from both sides of the equation.

x

2

+

14

x

=

−

36

To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of

b

.

(

b

2

)

2

=

(

7

)

2

Add the term to each side of the equation.

x

2

+

14

x

+

(

7

)

2

=

−

36

+

(

7

)

2

Simplify the equation.

Tap for more steps...

x

2

+

14

x

+

49

=

13

Factor the perfect trinomial square into

(

x

+

7

)

2

.

(

x

+

7

)

2

=

13

Solve the equation for

x

.

Tap for more steps...

x

=

±

√

13

−

7

The result can be shown in multiple forms.

Exact Form:

x

=

±

√

13

−

7

Decimal Form:

x

=

−

3.39444872

…

,

−

10.60555127

…

Step-by-step explanation:

The shape of the sampling distribution of the daily proportions of overripe oranges is approximately normal.

The correct answer option is option C

Sampling distribution refers to a probability distribution in which samples are drawn from a population which is taken from a larger population.

Types of sampling

Shapes of sampling distribution:

Number of oranges Toni's restaurant receives everyday = 200

Population of overripe oranges = approximately 11%

Therefore, it the supplier's claim is true of overripe oranges is true, shape of the sampling distribution is approximately normal.

Complete question:

Toni runs a restaurant that receives a shipment of 200 oranges every day. According to the supplier, approximately 11% of the population of these oranges is overripe. Suppose that Toni calculates the daily proportion of overripe oranges in her sample of 200. We can assume the supplier's claim is true, and that the oranges each day represent a random sample. What will be the shape of the sampling distribution of the daily proportions of overripe oranges?

Choose 1 answer:

Skewed to the left

Skewed to the right

Approximately normal

Uniform

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Answer:

Median: 5.5

Mean: 5.1

The equation (in slope-intercept form) of the line passing through the points with the given coordinates (−2,3) , (−3,2) is y = x + 5

The equation of a line in slope intercept form can be represented as follows:

y = mx + b

where

Hence, let's find the slope of the line using the coordinates (-2, 3) and (-3, 2).

Therefore,

m = 2 - 3 / -3 + 2

m = - 1 / -1

m = 1

Therefore, lets find the y-intercept using (-2, 3)

y = x + b

3 = -2 + b

b = 3 + 2

b = 5

Hence, the equation of the line in slope intercept form is y = x + 5

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The Linear inequality holds true for 21 ≥ x;

What is Linear Inequality?

The mathematical expression with unequal sides is known as inequality in mathematics. Inequality is referred to in mathematics when a relationship results in a non-equal comparison between two expressions or two numbers. In this instance, any of the inequality symbols, such as greater than symbol (>), less than symbol (), greater than or equal to a symbol (), less than or equal to a symbol (), or not equal to a symbol (), is used in place of the equal sign "=" in the expression. Polynomial inequality, rational inequality, and absolute value inequality are the various types of inequalities that can exist in mathematics. The symbols "" and ">" signify tight inequalities, while "" and "" signify slack inequalities.

In the given question, the given inequality given is:

-3(2x-11) ≥ 8x-9;

Solving the Inequality:

⇒-6x + 33 ≥ 8x - 9;

⇒33 + 9 ≥ 8x - 6x;

⇒ 42 ≥ 2x;

⇒ 21 ≥ x;

Hence,

The Linear inequality holds true for 21 ≥ x;

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Answer:

Step-by-step explanation:

Answer: 500 + 30 + 1 + 0.2 + 0.04 + 0.006