Answer:
length : 8 m
width : 13/2 = 6.5 m
Step-by-step explanation:
area of rectangle = l(ength)×w(idth) = 52
l = 2w - 5
=> (2w - 5)×w = 52
=> 2w² -5w - 52 = 0
we know, when transforming this quadratic equation into a multiplication of two expressions of w, that we need to have 2w and w (to make 2w²), and then which 2 numbers multiply to 52 and add to -5 (when one is multiplied by 2 due to 2w) : -13 and 4
=> (2w - 13)×(w + 4) = 0
=> 2 solutions for w :
2w-13 = 0
2w = 13, w = 13/2
w+4 = 0, w = -4
negative values for a side length of a shape do not make sense, so the only usable solution is w = 13/2
=> l = 2w - 5 = 13 - 5 = 8
Answer:
See attached image.
Step-by-step explanation:
To easily solve this question, we use a graphing tool, or a calculator to plot the graph of the ellipse.
(1/16)*x^2 + (1/4)*y^2 = 1
Please see image below
Answer:
The first angle is 37.5° and the second would be 52.5°
Step-by-step explanation:
Angles are complementary when their sums add up to 90°.
The first angle is 37.5° and the second would be 52.5°, after we plug in x.
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Answer:
4.9
Step-by-step explanation:
100% of 2.45 is 2.45.
We add 2.45 + 2.45 which is <u>4.9. </u>
Can I get brainliest?
945 minutes.
10% of 450 is 45. 450 + 45 = 495. 450 + 495 = 945.
