Find the value of x:

a)


b)

Hope this answer helps you....

I accidently answered this I'm sorry!!  Is there a way 2 delete my answer?

Answer:

#C

Step-by-step explanation:

I am almost 95% positive it's C because if you look at the Isosceles shaped diagram.

Yes let's see

#1

Thats -1

#2

Thats -5

#3

Right means positive

9514 1404 393

Answer:

  3.14

Step-by-step explanation:

The formula for the area of a circle is ...

  A = πr²

The constant of proportionality is the constant in this equation: π. To two decimal places, the value of π is 3.14.

The constant of proportionality is about 3.14.

Answer: 480 minutes or 8 hours

Step-by-step explanation:

24,000 ÷ 50 = 480.

It will take 480 minutes to fill the pool.

480 minutes ÷ 60 is also 8. So it will take 8 hours to fill the pool, or 480 minutes. Whichever one you want to use.

Hope this helps!

Answer:

480 Minutes or 8 Hours

Step-by-step explanation:

If you do 24,000 divided by 50 you get a result of 480

Answer:

2 times some thing and plus 3 equals -7

Step-by-step explanation:

x = -5

The frequency which is to filled in the table is 1, 4, 2 and 4.

Given that;

All shopping time of ten shopkeeper:

25, 29, 25, 18, 24, 28, 36, 25, 33, 37

We have to complete the frequency in the table. Frequency of something is the number of times that number is coming.

Since, Shopping time is given as ,

25, 29, 25, 18, 24, 28, 36, 25, 33, 37

And, Intervals for which frequency is given is ,

18 to 22, 23 to 27, 28 to 32, 33 to 37.

Hence, WE get;

Numbers in the range 18 to 22 = 18  therefore 1

Numbers in the range 23 to 27 = 25, 25, 24, 25 therefore 4

Numbers in the range 28 to 32 = 29, 28  therefore 2

Numbers in the range 33 to 37 = 36, 33, 37,  therefore 3

Hence, the frequency which is to filled are 1, 4, 2 and 4.

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We need to solve the operation:

The answer is 16n+18

The equation for the proportion, p, of consumers who shop with coupons is: p = C/N where C is the number of consumers who use coupons and N is the total number of consumers asked.

An equation is a mathematical statement that indicates the equality of two expressions. It consists of two expressions separated by an equal sign (=). The expression on the left side of the equal sign is equivalent to the expression on the right side. Equations can have one or more variables, which are usually represented by letters such as x, y, or z. The goal in solving an equation is to determine the value(s) of the variable(s) that make the equation true. This involves manipulating the expressions on both sides of the equal sign using algebraic operations such as addition, subtraction, multiplication, and division, to isolate the variable on one side of the equation. Equations are used in many areas of mathematics and science to represent relationships between variables and to solve problems. They are also used in various fields such as engineering, physics, and economics to model real-world situations and make predictions based on mathematical analysis.

Here,

This equation represents the ratio of the number of consumers who use coupons to the total number of consumers. It is commonly used in statistics and market research to measure the prevalence of a certain behavior or preference among a population. By calculating the proportion of consumers who use coupons, businesses can make informed decisions about their pricing strategies, promotions, and advertising campaigns.

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The bolded line represents a line segment rather than a line or a plane.

A line refers to an infinite figure that extends to the sides. For example, the railway track is composed of two lines.

This differs from a line because it is not infinite, instead, it is a section of a line with two endpoints. This concept applies to the bolded section of the tile because the section shows only a section of a line between two corners rather than a complete line.

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Answer:

The answer is B

Step-by-step explanation:

5 years longer then Bill, 2x5=10.

10+2=12.

12-5=7

Hoang has be there for 12 years. Bill has for 7 years.

Answer: -1 Is the answer.

Answer:

a. \( \frac{2}{3} \)

Step-by-step explanation:

The fraction, \( \frac{2}{3} \) is greater than \( \frac{1}{2} \) and less than \( \frac{3}{4} \).

How do we know this? See below how the fractions are compared together.

First, compare \( \frac{2}{3} \) and \( \frac{1}{2} \).

Find a common denominator for both fractions:

Common denominator of 2 and 3 would be 6. Therefore, multiply as follows:

\( \frac{2 \times 2}{3 \times 2} = \frac{4}{6}\) and

\( \frac{1 \times 3}{2 \times 3} = \frac{3}{6} \).

Compare the numerators. Which one is greater?

Form the calculation above:

\( \frac{2}{3} = \frac{4}{6} \) has a numerator of 4.

.

\( \frac{1}{2} = \frac{3}{6} \) has a numerator of 3.

Since 4 is greater than 3, therefore, the fraction, \( \frac{2}{3} \) is greater than \( \frac{1}{2} \).

✍️Compare \( \frac{2}{3} \) and \( \frac{3}{4} \).

Find a common denominator for both fractions

\( \frac{2 \times 4}{3 \times 4} = \frac{8}{12} \) and

\( \frac{3 \times 3}{4 \times 3} = \frac{9}{12} \)

Comparing their numerator, 8 is less than 9, therefore:

\( \frac{2}{3} \) is less than \( \frac{3}{4} \).

✔️We can conclude that:

\( \frac{2}{3} \) is greater than \( \frac{1}{2} \), and less than \( \frac{3}{4} \).

Hence the value of c = 4 in [3,5] for Rolles theorem.

Rolle's Principle

If a function f is defined in the closed interval [a, b] in a manner that meets the requirements listed below.

The interval [a, b] is closed and the function f is continuous.

ii) On the open interval, the function f can be differentiated (a, b)

iii) If f (a) = f (b), then at least one value of x exists; in this case, let's assume that this value is c, which is situated between a and b, i.e. (a c b), in such a way that f'(c) = 0.

There exists a point x = c in (a, b) such that f'(c) = 0 if a function is continuous on the closed interval [a, b] and differentiable on the open interval (a, b).

let f(x)=x²-8x+12 in [3,5]

i) f(x) is continuous in closed interval [3,5] because f(x) is algebraic function.

ii) f(x) is differentiable in the open interval (3,5) since the algebraic function is differentiable.

now f(3)=3²-8*3+12

f(3)= 9-24+12

f(3)= -3

f(5) = 25-40+12

f(5)= - 3

f(3) = f(5)

f'(x)= 2x-8

x=c ,c in [3,5]

f'(c)= 2c-8

2c-8=0

c=4

Hence the value of c = 4 in [3,5] for Rolles theorem.

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B. After 24 hours, approximately 2.49 grams will be left.

C. After approximately 18.13 hours, there will be approximately one gram left.

A. To represent the number of grams present after n hours, we can use the equation:

N(n) = 15 × (1 - 0.2)^n

Where:

N(n) is the number of grams present after n hours,

15 is the initial amount of the substance in grams,

0.2 represents the decay rate of 20% per hour, and

^n represents the exponentiation operation.

B. To find out how much will be left after 24 hours, we can substitute n = 24 into the equation from part A:

N(24) = 15 × (1 - 0.2)^24

Calculating this expression, we find that approximately 2.49 grams will be left after 24 hours.

C. We need to determine the number of hours it takes until there is approximately one gram left. We can set up the equation:

1 = 15 × (1 - 0.2)^n

To solve for n, we can divide both sides of the equation by 15 and then take the logarithm (base 0.8) of both sides:

log(0.8)(1/15) = n

Using a calculator or logarithmic properties, we find that approximately 18.13 hours are required until there is approximately one gram left.

Therefore, the answers are:

B. After 24 hours, approximately 2.49 grams will be left.

C. After approximately 18.13 hours, there will be approximately one gram left.

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Answer:34a

Step-by-step explanation:

because 6a-4=2a

4a+28=32a

2a+32a=34a

Using distributive property, the solution to the given expression is: 50v - 40w + 20

The Distributive Property is a term which is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses.

For example:

4(3 + 5)

According to the distributive property, you first have to multiply out the bracket to get:

4*3 + 4*5 = 12 + 20

= 32

Thus:

5(10v - 8w + 4) = (5 * 10v) - (5 * 8w) + (5 * 4)

= 50v - 40w + 20

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The formula that correctly solves for C is D. C = 5/9 (F - 32)

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

The given formula is,

F = 9/5C + 32

where Celsius is C, and degrees Fahrenheit is F

To solve for C let us isolate C to the one side and other terms to the other,

9/5 C = F - 32

Multiplying both side by 5/9 we get,

9/5 C *5/9 = 5/9* (F - 32)

or, C = 5/9 (F - 32)

which is the formula for C.

Thus, the formula that correctly solves for C is D. C = 5/9 (F - 32)

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Answer:

unit of cubes in a three dimension figure

The amplitudes of functions are a) 8 and b) 6.

Given are the functions we need to determine the amplitude of function,

a) y = 8 Sin (x/2) + 3

b) y = 6 Cos x + 2

So,

To determine the amplitude of a trigonometric function, you can follow these steps:

For a sine function of the form y = A×sin(Bx + C) + D:

The amplitude is equal to the absolute value of the coefficient A.

For a cosine function of the form y = A×cos(Bx + C) + D:

The amplitude is equal to the absolute value of the coefficient A.

Let's apply these steps to the given functions:

a) y = 8×sin(x/2) + 3

The coefficient of sin in this function is 8, so the amplitude is |8| = 8.

Therefore, the amplitude of function a) is 8.

b) y = 6×cos(x) + 2

The coefficient of cos in this function is 6, so the amplitude is |6| = 6.

Therefore, the amplitude of function b) is 6.

Hence the amplitudes of functions are a) 8 and b) 6.

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Answer:

3.95833333333

Step-by-step explanation:

Answer:

z> -2

Step-by-step explanation:

STEP 1) Any expression divided by itself equals 1

-3z-1<5

STEP 2) Move the constant to the right-hand side and change its sign

-3z<5+1

STEP 3) Add the numbers

5+1= 6

-3z<6

STEP 4) Divide both sides of the inequality by -3 and flip the inequality sign

z>-2

Answer:

Step-by-step explanation:

it is B

The critical value t* for a two-tailed 95% confidence interval with 19 degrees of freedom is approximately 2.093.

The critical value t* depends on the degrees of freedom (df) and the desired level of confidence. For a 95% confidence interval and a sample size of n=20, the degrees of freedom would be df = n-1 = 19.

Using a t-distribution table with 19 degrees of freedom (since n-1=20-1=19), we can find the value of t* that corresponds to a 95% confidence level. For a two-tailed test (which is typically used for a confidence interval), the area in each tail is 0.025 (since 1 - 0.95 = 0.05, and we need to split this evenly between the two tails).

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Answer:

1.

7 -3n

2.

2(p -10)

3.

4(3 +x)

4.

10 - 2w

5.

C = 45h + 125

6.

16 + 2x

7.

3n ÷ 4+n

Answer:

"fair" srry im only in 8th so im d.u.m

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

Triangle = 180˚ so

8x =56 , because x is 7. I know this bc it is a little bit more than 53 (you can tell just by looking at the triangle.)and it is impossible for it to be higher than 56, because angle c is more than 56. And I also checked it, so it is right.

e + d + c = 180

53 + 56 + c = 180

180 - 109 = 71 so

71 = c

The line segment equation thing:

A straight line segment is equal to 180˚ as well so...

14(7) + 5

98 + 5

103

angle J = 103

Check:

53 + 56 + 71 = 180

Answer:

$248.75

Step-by-step explanation:

25% more of 199 is 248.75

Answer:A=144 P=40

Step-by-step explanation:

Answer:

Area is \(96^{2}\) feet

Perimeter is 40ft