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2 years ago

Is the following a function yes or no? f(x) = 3x2 - 7x + 9

Mathematics

1 answer:

11Alexandr11 [23.1K]2 years ago

5 0

Answer:

yes

Step-by-step explanation:

becaue it would pass the vertical line test. and it is a quadratic

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△ABC ≅ △DEF, EF = x 2 - 7, and BC = 4x - 2.

Artist 52 [7]

Answer:

Therefore the value of x is 5.

Step-by-step explanation:

Given:

△ABC ≅ △DEF,

EF = x 2 - 7, and

BC = 4x - 2.

To Find:

the values of x. = ?

Solution:

△ABC ≅ △DEF ........Given

If two Triangles are congruent then the Corresponding Parts of Congruent Triangles are Congruent.

∴ BC ≅ EF ...................CPCTC

Substituting the values we get

$4x-2=x^{2}-7\\x^{2}-4x-5=0$

Now By Factorizing we get

$x^{2}-5x+x-5=0\\x(x-5)+1(x-5)=0\\(x+1)(x-5)=0\\x+1=0\ or\ x-5=0\\x=-1\ or\ x=5\\x\ cannot\ be\ negative\\\therefore x=5$

Therefore the value of x is 5.

8 0

2 years ago

If the 6th term of an A.p is 11and its first term is 1 find the common diferent

hram777 [196]

Answer:

$thank \: you$

4 0

2 years ago

Read 2 more answers

Adrianna can read 7 pages in 10 minutes. At this rate,how many pages can she read in 25 minutes

Westkost [7]

Use a proportion. 7/10 = x/25. Multiply 10 by 2.5 to get 25. Similarly, multiply 7 by 2.5 to get 17.5. 17 1/2 pages.

5 0

2 years ago

Read 2 more answers

10.

Alexxx [7]

The correct answer is option C which is the given expression is cubic.

<h3>What is an expression?</h3>

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

Given expression

5x³ + 2x − 3

The cubic expression is one in which the highest power of the variable is three or we can say that the degree of the expression is three so the expression will have three solutions.

Therefore the correct answer is option C which is the given expression is cubic.

To know more about Expression follow

brainly.com/question/723406

#SPJ1

3 0

1 year ago

You want to go to the skate park, and you have two options:

Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables