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3 years ago

I need help with number 9

Mathematics

1 answer:

ch4aika [34]3 years ago

3 0

Answer:

Step-by-step explanation:

We can safely assume we are dealing with an arithmetic scale because the type of scale isn't mentioned anywhere. The more right a point is on the scale, the higher its value is. We are given two points of the scale: 3 and 4. Because the scale is arithmetic, we know that 3.8 must lie on 4/5s of the length between 3 and 4 to the right of 3, which is exactly where point D is.

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How tall is a building that casts a 78-ft shadow when the angle of elevation of the sun is 30 degrees?

Marta_Voda [28]

Answer: $45.03\ ft$

Step-by-step explanation:

Given

The length of the shadow is 78 ft

the angle of elevation is $\theta =30^{\circ}$

Suppose the height of the building is $h$

From the figure, we can write

$\tan 30^{\circ}=\dfrac{h}{78}\\\\h=78\tan 30^{\circ}\\\\h=45.03\ ft$

The height of the building is 45.03 ft

8 0

2 years ago

PLEASE ANSWER ALL BIG REWARD

sleet_krkn [62]

Answer:

multiplying
similar figures
scale factor
(x, y) (–3x, –3y) and (x, y) (0.23x, 0.23y)
(x, y) --> (2x, 4y)
Need diagram
A. The line segment has become longer with endpoints D' (-12, -10) and E' (6 -8).
Need image
Reduction
Enlargement

<em>good luck, i hope this helps :)</em>

6 0

3 years ago

What’s the transformation

frosja888 [35]

Answer:

Step-by-step explanation:

because 43 - 69 is f u n k y

6 0

3 years ago

Simplify (write without the absolute value sign): |x−(−12)|, if x<−12

VladimirAG [237]

Answer:

|x + 12|

Step-by-step explanation:

The question I took form you I assume looks like this...

|x - (-12)|

Therefore, if we simplify this, the answer is |x + 12|

This is the answer because you would multiply -1 by -12

3 0

3 years ago

One hundred nautical miles equals about 185 kilometers. To the nearest kilometer, how far in kilometers is 175 nautical miles?

MrMuchimi

Answer:

323.75 km

Step-by-step explanation:

185/100 = 1.85 km per nm

1.85 * 175 = 323.75 km

3 0

3 years ago