Which expression is the factorization of x2 + 10x + 21?

A. (x + 3) (x + 7)

B. (x + 4) (x + 6)

C. (x + 6) (x + 15)

D. (x + 7) (x + 14)

What is the weirdest thing happen when you were invited to a sleepover?

Will Mark Brainliest Solve the quadratic equation by completing the square. x^2 + 4x - 3 = 0 A) x = 4 ± 7 B) x = 2 ± 7 C) x = - 4 ± 7 D) x = - 2 ± 7

Instructions:Select the correct answer. Which sentence best describes the theme of the story "A Horseman in the Sky" by Ambrose Bierce? A.) It is a story about family values and how they shape an individual's personality. B.

5[3 (x+4) - 2 (1-x) ]-x-15=14x+45

A company hopes to improve customer satisfaction, setting a goal of no more than 5% negative comments. A random survey of 350 customers found only 14 with complaints.

5 (2x + 6) = 8x + 48 simplify.

If 30+12x represents the area of a partitioned rectangle, what could be expressions for the side lengths? List at least 5 possibilities

Jay Low received scores of 87 and 98 on his first two exams of the grading period. At least what score must jay earn on the next exam for the test average to be at least a 93 for the grading period?

Keenan made a large batch of lemonade for his team. He poured 72 cups of water into a large cooler. Then he added 1 cup of lemonade concentrate for every 2 quarts of water and mixed all of the liquids together.

The tree club plans to hike 20 miles today. The hikers have covered 6 miles so far. If they travel at an average speed of 2 1/2 how many hours will it take to complete the hike