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jasenka [17]
3 years ago
8

The work of a student to solve a set of equations is shown:

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0
It might be step 4 where it got dropped by step 3
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Use the diagram of ◾ABC to find m&lt;D<br>M&lt;D=​
Yuliya22 [10]

Answer:

In quadrilateral ABCD we have

AC = AD

and AB being the bisector of ∠A.

Now, in ΔABC and ΔABD,

AC = AD

[Given]

AB = AB

[Common]

∠CAB = ∠DAB [∴ AB bisects ∠CAD]

∴ Using SAS criteria, we have

ΔABC ≌ ΔABD.

∴ Corresponding parts of congruent triangles (c.p.c.t) are equal.

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A restaurant has 60 plates.One night, 9 groups of 6 people ate dinner at the restaurant at the same time.How many plates were no
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6 plates were not used

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3 years ago
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What the factors of 40 with a sum of -22? *
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Answer:

Why is 90 the sum of all factors of 40, including 40? The factors of the number 40 are: 1, 2, 4, 5, 8, 10, 20, 40. If you add them up, you will get the total of 90.

Step-by-step explanation:

2. Given the points A, B, C, D, calculate:

(a) the angle B of the triangle ABC

(b) the area of the triangle ABC

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(e) the volume of tetrahedron ABCD

(f) the point E so that ABCE is a parallelogram.

A(-1, 2, -3), B(4, -1, 0), C(2, 1, -2), D( 3,4,5)​

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3 years ago
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15 Question Help
kari74 [83]

Answer:

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Step-by-step explanation:

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not 9 the answer should be 3

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