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slava [35]
3 years ago
14

Help needed quick!!!!!!!!!1

Mathematics
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

\cos(D) = 0.2195

Step-by-step explanation:

Given

The attached triangle

Required

\cos(D)

This is calculated as:

\cos(D) = \frac{Adjacent}{Hypotenuse}

So, we have:

\cos(D) = \frac{1.8}{8.2}

\cos(D) = 0.2195

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Which point is a solution for this system of inequalities?<br> y &gt; -x<br> y &lt; 2x
Alika [10]
X  > 0 and -x < y <span>< 2x There you go, it is infinite applying to those rules.</span>
4 0
3 years ago
You work with 3 other students on a project for science class. Your group
aleksandrvk [35]

Answer:

350 points are possible

Step-by-step explanation:

You take 329 divided by 94% or .94 to get 350.

100% of 350 is 350

To double check, 94% of 350 is 329 & 6% of 350 is 21.  329 +21 = 350

4 0
2 years ago
What is m∠CDE?
BigorU [14]

Answer:

45°

Step-by-step explanation:

Angle CDE is half of a right angle

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6 0
3 years ago
The perimeter of the triangle shown to the right is 163 find the length of each side
nika2105 [10]

To find M from that series of data, you'd just have to fill out the simple equation of (5x)+(7x+8)+(7x+3)=163. Group like terms to get 19x+11=163. Subtract 11 from 163 to get 19x=152. 152/19 is 8. X is 8. Plug that in each side to get 40m, 64m and 59m, in the same order of (5x)+(7x+8)+(7x+3)


TL;DR of it all:

(5x)+(7x+8)+(7x+3)

40m, 64m, 59m. Don't forget the unit of measurement.

5 0
4 years ago
Work out xz and qr need asap​
Korvikt [17]

Answer:

see explanation

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal

(a)

\frac{xPR}{XZ} = \frac{PQ}{XY} , substitute values

\frac{6.5}{XZ} = \frac{7.2}{18} ( cross- multiply )

7.2XZ = 117 ( divide both sides by 7.2 )

XZ = 16.25 cm

---------------------------------------

(b)

\frac{QR}{YZ} = \frac{PQ}{XY} , substitute values

\frac{QR}{17} = \frac{7.2}{18} ( cross- multiply )

18QR = 122.4 ( divide both sides by 18 )

QR = 6.8 cm

8 0
4 years ago
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