IDNLearn.com provides a platform for sharing and gaining valuable knowledge. Discover trustworthy solutions to your questions quickly and accurately with help from our dedicated community of experts.
Sagot :
To determine the correct inequality that represents the given situation:
1. Let [tex]\( x \)[/tex] denote the width of the photo in the center of the cake.
2. According to the problem:
- The width of the cake is 4 inches more than the width of the photo.
Therefore, the width of the cake is [tex]\( x + 4 \)[/tex].
- The length of the cake is two times its width.
Therefore, the length of the cake is [tex]\( 2(x + 4) \)[/tex].
3. The area of the cake is calculated by multiplying its length and width:
[tex]\[ \text{Area of the cake} = \text{Length} \times \text{Width} \][/tex]
Substituting the expressions for length and width:
[tex]\[ \text{Area of the cake} = 2(x + 4) \times (x + 4) \][/tex]
4. The area of the cake must be at least 254 square inches, so we set up the inequality:
[tex]\[ 2(x + 4)(x + 4) \geq 254 \][/tex]
5. Simplify the expression inside the inequality:
[tex]\[ 2(x + 4)^2 \geq 254 \][/tex]
6. Expand the quadratic expression:
[tex]\[ 2(x^2 + 8x + 16) \geq 254 \][/tex]
7. Distribute the 2:
[tex]\[ 2x^2 + 16x + 32 \geq 254 \][/tex]
Therefore, the correct inequality is:
B. [tex]\(2x^2 + 16x + 32 \geq 254\)[/tex]
So the correct answer is option B.
1. Let [tex]\( x \)[/tex] denote the width of the photo in the center of the cake.
2. According to the problem:
- The width of the cake is 4 inches more than the width of the photo.
Therefore, the width of the cake is [tex]\( x + 4 \)[/tex].
- The length of the cake is two times its width.
Therefore, the length of the cake is [tex]\( 2(x + 4) \)[/tex].
3. The area of the cake is calculated by multiplying its length and width:
[tex]\[ \text{Area of the cake} = \text{Length} \times \text{Width} \][/tex]
Substituting the expressions for length and width:
[tex]\[ \text{Area of the cake} = 2(x + 4) \times (x + 4) \][/tex]
4. The area of the cake must be at least 254 square inches, so we set up the inequality:
[tex]\[ 2(x + 4)(x + 4) \geq 254 \][/tex]
5. Simplify the expression inside the inequality:
[tex]\[ 2(x + 4)^2 \geq 254 \][/tex]
6. Expand the quadratic expression:
[tex]\[ 2(x^2 + 8x + 16) \geq 254 \][/tex]
7. Distribute the 2:
[tex]\[ 2x^2 + 16x + 32 \geq 254 \][/tex]
Therefore, the correct inequality is:
B. [tex]\(2x^2 + 16x + 32 \geq 254\)[/tex]
So the correct answer is option B.
We appreciate your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. IDNLearn.com is your go-to source for dependable answers. Thank you for visiting, and we hope to assist you again.