Answer:
Step-by-step explanation:
<u>We know that:</u>
<u>Let's first solve for y by choosing any equation.</u>
- 4x + y = 14
- => y = 14 - 4x
<u>Now, let's substitute the value of y into the second equation.</u>
- 6x - 3y = 3
- => 6x - 3(14 - 4x) = 3
- => 6x - 42 + 12x = 3
- => 18x - 42 = 3
- => 18x = 42 + 3
- => 18x = 45
- => x = 45/18 = 5/2 = 2.5
<u>Now, let's substitute the value of x into the equation of y.</u>
- => 14 - 4x = y
- => 14 - 4(2.5) = y
- => 14 - 10 = y
- => y = 4
Hence, the value of x and y are 2.5 and 4 respectively.
Option B) (x + 3)^2 − 5 is the correct answer
Step-by-step explanation:
Given expression is:

We will solve eah expression in the options to chek which is equivalent to given expression
So,
<u>A) (x + 3)^2 + 5</u>

NOT equivalent
<u>B) (x + 3)^2 − 5</u>

Equivalent
Hence,
Option B) (x + 3)^2 − 5 is the correct answer
Keywords: Equivalent expressions, polynomials
Learn more about polynomials at:
#LearnwithBrainly
<h2>
Area of Composite Shapes</h2>
To find the area of composite shapes, we can break the bigger shape down into small, simpler shapes, and find the sum of their areas.
For this triangle, we will need to know the formula to find the area of a triangle:

<h2>Solving the Question</h2>
The given shape can be seen as one large triangle with a little triangle cut out of it. To find the shaded region, we can:
- Find the area of the large triangle
- Find the area of the little triangle
- Subtract the area of the little triangle from the large triangle
<h3>Area of the Large Triangle</h3>

⇒ Plug in the values given for the base and height:

<h3>Area of the Small Triangle</h3>

⇒ Plug in the values given for the base and height:

<h3>Subtract the Area of the Small Triangle from the Area of the Large Triangle</h3>

<h2>Answer</h2>
The area of the shaded region is
.
Answer:
the answer is 18
Step-by-step explanation:
7+9÷3+2x4= 18