√-80 can be factored out, to see which factors can be square rooted. A pair of factors would be 16 and -5, so that would be 4√-5. But, negative numbers cannot be inside a square root. So, √-1 is the same thing as <em>i</em>, or <u>imaginary number</u>. So, the expression equivalent to √-80 is 4<em>i</em>√5.
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Answer: D. Chloe did not cut enough fabric because she only cut the amount of extra fabric.
Step-by-step explanation:
From the question, we are informed that a direction on a sewing pattern say to cut an extra 15% of fabric to account for error and that Chloe needs 0.75 yard of fabric to make a skirt.
Based on the information given in the question, the extra fabric will be:
= 15% × 0.75
= 15/100 × 0.75
= 0.15 × 0.75
= 0.1125
Therefore, the correct amount of fabric to cut will then be the amount of yard needed for the skirt plus the extra. This will be:
= 0.75 + 0.1125
= 0.8625 yards
Based on the above calculation, Chloe did not cut the correct amount of fabric as she only cut the amount of extra fabric.
Answer:
8
Step-by-step explanation:
9514 1404 393
Answer:
x = 115
Step-by-step explanation:
The sum of angles in a hexagon is 720°.
x +118 +90 +112 +131 +154 = 720
x = 115 . . . . . . . subtract 605
Answer:
<em>Option B</em>
Step-by-step explanation:
<u>Congruent Triangles</u>
The SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both triangles are congruent, then the two triangles are similar.
The triangles are congruent if the relation between LK and KN is the same as the relation between KN and MN, that is
It means that
MN=1
Option B