What is the negation of the following statement? m∠A is greater than 90.

A: m∠A is not less than 90.

B: m∠A is less than or equal to 90.

I'm not quite sure how to do this question: - 2 (35-5y)

What occurs during this natural disaster?

In 1940, Cornelius Warmerdam used a bamboo pole to vault 15 ft 8 inches. In 1962, Dave Tork using a fiberglass pole, vaulted 16 ft. 2 inches. How much higher was Tork's vault then Warmerdam?

Use ΔDEF, shown below, to answer the question that follows: Triangle DEF where angle E is a right angle. DE measures 55. EF measures x. Angle D measures 49 degrees. What is the value of x rounded to the nearest hundredth?

I'm trying to understand the process of regrouping in the hundredths when adding

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Determine if the ratios are proportional. 4/5 and 15/20

What is the angle of a triangle if one angle is 68 and the other is 52