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Lesechka [4]
3 years ago
12

0.5+(-3/4)+0.25-(-4/5)

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

Answer:

th first one

Step-by-step explanationor fully:

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Someone please help with this question please​
natima [27]

Step-by-step explanation:

Since Angle DAE = Angle BCE, lines AD amd BC are parallel (by Z-angles).

This means that Angle ADE = Angle CBE (by Z-angles).

We have 2 congruent angles and 1 congruent side (AD = BC, given).

By ASA congruence, triangles AED and CEB are congruent.

5 0
3 years ago
Read 2 more answers
In circle p, st = 30 ft. what is the circumference of the circle? 45p ft 15p ft 10p ft 30p ft
skelet666 [1.2K]
The answer to this question is:

<span>In circle p, st = 30 ft. what is the circumference of the circle?
</span><span>"30p ft"

Hope this helped, Taylenlane7544
Your Welcome :)
</span>
5 0
3 years ago
Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 20 feet,
Anika [276]

Answer:

7.7 ft

Step-by-step explanation:

The third longest side is also the second shortest side.

The 14 ft side of quadrilateral ABCD corresponds to the 6 ft side of quadrilateral EFGH.

14/6 = 18/x

7/3 = 18/x

7x = 18 * 3

7x = 54

x = 54/7

x = 7.7

Answer: D. 7.7 feet

4 0
3 years ago
Read 2 more answers
The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
Andrew [12]

Answer:

x = -5; y = 4, z = 1

Step-by-step explanation:

Given the row echelon form as:

\left[\begin{array}{cccc}1&0&\ \ 4|&-1\\0&1&-1|&3\\0&0&\ \ 1|&1\end{array}\right]

This matrix can be represented as:

\left[\begin{array}{ccc}1&0&4\\0&1&-1\\0&0&1\end{array}\right]\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}-1\\3\\1\end{array}\right] \\\\Performing\ matrix\ multiplication\ gives:\\\\\left[\begin{array}{c}x+4z\\y-z\\z\end{array}\right] =\left[\begin{array}{c}-1\\3\\1\end{array}\right]

Therefore:

z = 1

y - z = 3;  

y = 3 + z = 3 + 1 = 4.

Hence, y = 4

x + 4z = - 1;

x = -1 - 4z = -1 - 4(1) = -5

x = -5

4 0
3 years ago
Find the distance between the points (–10,3) and (–2,3).
nikdorinn [45]

Answer:

8

Step-by-step explanation:

10 - 2

7 0
3 years ago
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