Answer:
They aren’t used to see far away
Step-by-step explanation:
Okay well here is the easy way: STEP 1. convert your percentage to a decimal 40%=.4 STEP 2. multiply 30 by the decimal: 30*.4=12. ANSWER: 40% OF 30 IS 12
Answer:
100 gm calcium, 30gm carbon and 120gm oxygen
Step-by-step explanation:
10% of a kg is 100gm of calcium, 3% of 1 kg is 30gm of carbon and 12% of a kg is 120gm of oxygen
The shape which describe the shape of the sandbox is "A quadrilateral, because angle c and angle x are acute."
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What is Quadrilateral?</h3>
A quadrilateral is a four-sided polygon, having four edges and four corners.
Here, Diagonal = 14 ft.
Length = 12 ft.
Width = 8 ft.
14² = 196, 12² = 144, 8² = 64
8² + 12² ≠ 14²
so it is not a rectangle.
Now, 14² < 12² + 8²
this condition does not occur in rectangle, so it will be a quadrilateral and here sum of square of two adjacent side is greater than the square of third side (Diagonal). So that is an acute angle.
From this situation we can conclude that:
Thus, the shape which describe the shape of the sandbox is "A quadrilateral, because angle c and angle x are acute."
Learn more about Quadrilateral from:
brainly.com/question/13805601
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Answer:
Step-by-step explanation:
The diagonals of a rhombus divides it into four congruent right triangles. Each triangle is a mirror image of the adjacent.
Therefore angle 2 is the alternate interior angle of 57°, and angle 3 is the mirror image, so also 57°.
Angles 1 is the complement of angle 3, and angle 4 is equal to the complement of angle 2 , so both equal 90-57 = 33°.
To summarize,
angle 1 = 33°
angle 2 = 57°
angle 3 = 57°
angle 4 = 33°
