3 years ago

Need help now!!!! Find the area of a rhombus

Mathematics

2 answers:

sasho [114]3 years ago

4 0

Answer:

64 in

Step-by-step explanation:

e-lub [12.9K]3 years ago

3 0

Answer: 80 in

Step-by-step explanation:

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.

almond37 [142]

Zinc = 7/18
Divide 4.9 by 7 = 0.7
Multiply by 18 = 12.6

The answer is 12.6 lbs of alloy. Sorry if I'm wrong

6 0

4 years ago

Find the length of the third side. If necessary, write in simplest radical form.

melisa1 [442]

$\text{Apply Pythagorean theorem,}\\\\~~~~~~~~\text{Hypotenuse}^2=\text{Base}^2 + \text{Perpendicular}^2\\\\\implies 9^2 = \text{Base}^2 + \left(2\sqrt{14} \right)^2\\\\\implies 81 = \text{Base}^2 + 56\\\\\implies \text{Base}^2 = 81-56\\\\\implies \text{Base}^2 = 25\\\\\implies \text{Base} = \sqrt{25}\\\\\implies \text{Base} = 5\\\\\text{The length of the third side is 5 units.}$