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gavmur [86]
3 years ago
6

What is the value of the expression below when x = 10? 4x + 5 8r +5

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0
There no solution sorry man
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Y varies directly as the square of x. If y is 25 when x is 3, find y when x is 2
netineya [11]

Answer:

16.6666666667

Step-by-step explanation:

8 0
2 years ago
A and B share money in a ratio of 9:4. How much of the £39000 does B get?
REY [17]
So we have a total of 39000
and a total of 9+4 parts to split it in
so split 39000 into 13 parts
39000/13 = 3000
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9(3000) : 4(3000)
27000:12000
8 0
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.

8 0
3 years ago
The lengths and widths of two rectangles are proportional. One
Rashid [163]

The width of the rectangle would be 6 times the first rectangle and the length would be 8 times the first rectangle.

<u>Explanation:</u>

Given:

Two rectangles are proportional.

Length and width of 1 rectangle = 6 : 8

Dimensions of the other rectangle = ?

Let length and width of the other rectangle be x : y

According to the question:

\frac{6}{8} :\frac{x}{y}

\frac{6}{8} X \frac{y}{x}

So, the width of the rectangle would be 6 times the first rectangle and the length would be 8 times the first rectangle.

5 0
3 years ago
What is the surface area of the right cylinder below. radius 3 height 7​
lina2011 [118]

Answer:

160 sq. uits

Step-by-step explanation:

160 sq. uits é a resposta

4 0
2 years ago
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