MATHEMATICS HIGH SCHOOL

Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?A. the formula for the area of a circle
B. the formula for the area of a trapezoid
C. the formula for the area of a triangle
D. the formula for the area of a rectangle

Answers

Answer 1
Answer:

The formula for the area of a circle. Then the correct option is A.

What is an irrational number?

If the value of a numerical expression is terminating then they are the rational number then they are called the rational number and if the value of a numerical expression is non-terminating then they are called an irrational number.

A. The formula for the area of a circle.

In the formula of circle, π is an irrational number, so the resulting area will be irrational.

B. The formula for the area of a trapezoid.

In the formula of trapezoid, all the value are rational number, so the resulting area will be rational.

C. The formula for the area of a triangle.

In the formula of triangle, all the value are rational number, so the resulting area will be rational.

D. The formula for the area of a rectangle.

In the formula of rectangle, all the value are rational number, so the resulting area will be rational.

Then the correct option is A.

More about the irrational number link is given below.

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Answer 2
Answer:

Answer:

A: The formula for the area of a circle

Edg 2020

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The tangent line to the graph of y = h(x) at the point (-1, 6) passes through the point (4, 2). Find h(-1) and h'(-1).How do I solve this?

What is 2/5 x 15 and what is 7 x 3/7

Answers

The first one 2/6 x 15 is =6
The Second one 7 x 3/7 =3

What is 9 times 3/4?

Answers

When multiplying a whole number by a fraction, put the whole number as a fraction over one. 9/1 times 3/4. When multiplying fractions, you multiply straight across. 9(3)=27 and 1(4)=4. The new fraction is 27/4.

Alison is selling and buying baseball cards online. She sells each card for $3.25 and buys each card for $5.50. If she sold 4 cards and bought 7 cards, did she end up making money or spending money and how much money did she spend or make

Answers

spends money, spends $25.50
She sold 13$ worth of cards and she bought 38.50$ worth of cards. She ended up spending more money than she made

A traffic helicopter pilot 60 meters above the road spotted two antique cars. The angles of depression are 10.2 and 8.7 degrees. How far apart are the cars? A. 58.6 B. 392.1 C. 333.5 D. 57.8

Answers

Answer:

A. 58.6 meters

Step-by-step explanation:

Angle of depression denotes the angle when looking down from a certain height.

tan10.2=(60)/(AD)\n\Rightarrow AD=(60)/(tan10.2)

tan 8.7=(60)/(AB)\n\Rightarrow AB=(60)/(tan8.7)

DB = AB-AD

\n\Rightarrow DB =(60)/(tan8.7)-(60)/(tan10.2)\n\Rightarrow DB = 392.1-333.47\n\Rightarrow DB = 58.63\ meters

The cars are 58.6 meters apart.
58.6 is the answer to your question

A gym charges $35 per month after an initial membership fee. A member has paid a total of $250 after 6 months. Write an equation that gives the total cost of a gym membership as a function of length of membership (in months). Find the total cost of membership after 10 months.

Answers

The required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Total charges of gym = Initial service fee +  $ 35 per month

Thus, the total charges for 6 months = Initial service fee +  35 × 6 =  Initial service fee + 210

According to the question,

Initial service fee +  210 = 250

⇒ Initial service fee = 250 - 210 = $ 40

Hence, the total charges for the gym for x months = 40 + 35x. Here, y represents the total charges for x months,

⇒  y = 40 + 35 x

The total cost of the membership after 10 months will be calculated as:-

y = 40 + 35 x

y = 40 + 35 x 10

y = 390

Therefore, the required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

To know more about Expression follow

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Andrea drove 500 miles in 10 hours. find the average number of miles per hour that andrea drove

Answers

andrea drove 50miles/hour
refer to pic for working
500 miles / 10 hours = 50 miles per hour.

Please make this answer the brainiest!
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