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3 years ago

Can someone help me with this?

Mathematics

1 answer:

hammer [34]3 years ago

8 0

Answer:

Shaded area is 55 units²

Step-by-step explanation:

Ignoring the white cutout, we have a rectangle of length 10 and width 7 (count the squares in each direction). The area of this larger rectangle is

(10 units)(7 units) = 70 units². The white area that we previously ignored has dimensions 3 by 5 units, and thus an area of 15 units²

Subtract the latter from the former, obtaining the net area

70 units² - 15 units² = 55 units²

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3 years ago

Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D

Ivahew [28]

Check the picture below.

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
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4 years ago

What happens to y=x when the y-intercept is changed

Eddi Din [679]

Answer:

When the y-intercept of a line is changed, the line will shift up or down along the y-axis. The slope of the line will remain the same, but the point at which the line crosses the y-axis will change. This means that the position of the line on the graph will change, but the overall shape of the line will stay the same. For example, if the y-intercept of the line y=x is changed from (0,0) to (0,5), the line will shift up by 5 units and will now be represented by the equation y=x+5. This will cause the line to intersect the y-axis at the point (0,5) instead of (0,0).

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1 year ago

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ANTONII [103]

Answer:

pg ==15

Step-by-step explanation:

pg=15

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3 years ago

Given Δ ABC ≅ Δ EFG, What is the value of x?

fenix001 [56]

m<A = 50

m<C = m<G = 85

m<A + m<B +m<C = 180

50 + x + 85 = 180

x + 135 = 180

x = 45

Answer: A. x= 45°

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3 years ago

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