2 years ago

Please help me!! Find the area of each triangle (A-D). Show your reasoning.

Mathematics

1 answer:

Anestetic [448]2 years ago

3 0

Answer:

Multiply

Step-by-step explanation:

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This is easy but I’m a bit slow PLS HELP IMAO

Orlov [11]

Answer:

x= 35 degrees

Step-by-step explanation:

so basically all angles of a triangle always add up to 180 degrees so 180-42-103= 35 degrees, also dw im slow too

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1 year ago

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A prediction for the volume at 105 seconds is 497 cm3.

Nitella [24]

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Step-by-step explanation:

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3 years ago

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9. A small airplane is 60 miles from the airport and is going down for landing with some angle of depression. However its naviga

Svetradugi [14.3K]

Answer:

13.98 degrees

Step-by-step explanation:

Let the airplane be at point A, the airport at point B and the point of overshoot, point C.

If the plane is on path AC and the pilot wants to adjust to the path AB, the angle by which the pilot will adjust the airplane heading is the angle between AB and AC which is A.

Using Cosine Rule

$Cos A=\dfrac{b^2+c^2-a^2}{2bc} \\Cos A=\dfrac{65^2+60^2-16^2}{2(65)(60)} \\Cos A=0.9704\\A=arcCos (0.9704)\\\angle A=13.98^\circ$

The pilot should adjust the plane's heading by 13.98 degrees.

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3 years ago

Write an equation in slope-intercept form for points through (2, -7), parallel to 7x - 4y = 18

pav-90 [236]

Y=18-7x/-4
gradient = 7/4
parallel lines, same gradient.
y--7=7/4(x-2)
y=7x-14-28/4
y= (7x + 14)/4

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3 years ago

How many solutions does the equation 3x + 6 = −1 − 3 + 4x have

VashaNatasha [74]

Answer:

ONE: x = 10

Step-by-step explanation:

3x + 6 = -1 - 3 + 4x

3x + 6 = -4 + 4x |subtract 6 from both sides

3x = -10 + 4x |subtract 4x from both sides

-x = -10 |change the signs

x = 10

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2 years ago