MATHEMATICS HIGH SCHOOL

(x) = 3x+2
What is f(5)

A. 15
B. 10
C. 17
D. 21

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Answer 2

Answer:

Answer:

f(5) = 17

Step-by-step explanation:

to solve this, you need to plug in 5 to the equation, which is going to be 3(5) + 2. and then you solve for it, which you will get 17.

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Select the word that correctly completes the sentence.Every function pairs __________ output value with one input value.
(1 point)
more than one
at least one
exactly one

Answers

Every function pairs HAS EXACTLY ONE output value with one input value.

A function is defined as a relation wherein one variable specifies a single value of another value. Function pairs is composed of an input and an output.

The answer is exactly one

Tony is standing at sea level. From his location, the angle of elevation of the top of Blue Mountain is 23°. Staying at sea level, he walks 220 yards toward the mountain. The angle of elevation of the top is now 27°. Find the height of Blue Mountain. Round intermediate results to 3 decimal places and the final answer to 1 decimal place.

Answers

Answer:

559.2 yards.

Step-by-step explanation:

Let the height of the mountain be x yards and the distance from the second location to the base of the mountain be y yards.

Then we have the equations:

tan 27 = x/y

tan 23 = x / (220 + y)

From the first equation y = x/ tan27 so substituting in the second one we have:

tan 23 = x / (220 + x / tan 27)

Cross multiply:

x = 220 tan23 + x tan 23 / tan 27

x = 93.384 + 0.833 x

x - 0.833x = 93.384

x = 93.384 / 0.167

x = 559.2 yards to 1 dec place (answer).

Can someone answer plz

Answers

1.D 2. A 3.C 4.D

1 Is the monomial as it only contains one expression.

2. Is the difference of squares because something squared minus something squared.

3. Is standard because it is of the form

$a_nx^n+ a_(n-1)x^(n-1)+...+a_1x+a_0$

4. We know D is the not the monomial simply because its power is negative which means it does not fit the definition of a polynomial.

If 5x+6=10, what is the value of 10x+3?

A) 4
B) 9
C) 11
D) 20

Answers

Answer: 11

Step by step explanation:

Step 1 : solve the first equation to find the value of x

5x + 6 = 10

5x = 10 – 6

5x = 4

X = 4/5

Step 2 : Substitute the value of x in the second equation

10x + 3 = ?

10 ( 4/5) + 3

= 40 / 5 + 3

= 40 + 15 /5

= 55 / 5

= 11

$5x+6=10$
$5x=10-6$
$5x=4$
$x=4/5$

If we substitute the value of x into the second equation

$10x+3$
$10* 4/5+3$
$8+3=11$
Therefore, your solution is 11

Solve for x and y: 3x+7y=22 12x+28y=88

Answers

Final answer:

The system of linear equations 3x + 7y = 22 and 12x + 28y = 88 actually represents the same line, indicating that there are infinite solutions. Any pair of (x, y) that satisfies one equation will satisfy the other.

Explanation:

To solve the system of linear equations 3x + 7y = 22 and 12x + 28y = 88, let's use substitution or elimination method. Here, the elimination method works best since the equations are multiples of each other. Divide the second equation by 4, you get 3x + 7y = 22, which is exactly the same equation as the first equation.

This means both equations represent the same line, so there are infinite solutions. Any x, y that satisfy one equation will satisfy the other. Therefore, the system is dependent.

Example of such solutions (x, y) can be obtained by isolating y in the first equation:

7y = 22 - 3x

y = (22 - 3x) / 7 or y = 9 + 3x

Learn more about System of linear equations here:

brainly.com/question/27063359

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Final answer:

The given system of equations has infinitely many solutions.

Explanation:

To solve for x and y in the given system of equations:

3x + 7y = 22

12x + 28y = 88

Multiply the first equation by 4 to eliminate the y variable:

12x + 28y = 88

Subtract the second equation from the first equation:

12x + 28y - 12x - 28y = 88 - 88

0 = 0

Since both variables have been eliminated, the equations are dependent and have infinitely many solutions. The solution is any pair of (x, y) values that satisfies the original equations.

Learn more about Solving systems of equations here:

brainly.com/question/29050831

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A violin was on sale of 50% off. the sale price is $50. what was the original price

Answers

In the given question, there are several important information's that have been given. based on these information's the correct answer to the question can be determined. It is already given that the selling price is $50. 50% off has already been declared.
Then
The amount of sale given on the violin = (50/100) * 50 dollars
= 25 dollars.
So the sale that has been given on the violin is $25.
Then the original price of the violin = (50 + 25) dollars
= 75 dollars
So the original price of the violin was $75.

If it is on sale for half off and the price comes down to $50 then the original price must have been $100. 50%=50/100. With $50 is 50% of 100

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