1 year ago

In the figure shown, m∠ABD=8x−28 and m∠DBC=4x+10.

1 answer:

7 0

In geometry, the segment addition postulate states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

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In this truss bridge, AAOB ABDC. AO=5 meters, BD=10 meters, AB=5 meters. What is the length of BC? A. 5 m B. 8 m C. 10 m D. 15 m

Olenka [21]

Consider $\Delta AOB\cong \Delta BDC$ .

Given:

$\Delta AOB\cong \Delta BDC, AO=5\ m,BD=10\ m, AB=5\ m.$

To find:

The length of BC.

Solution:

We have,

$\Delta AOB\cong \Delta BDC$

We know that the corresponding parts of congruent triangles are congruent (CPCTC).

$AB=BC$ (CPCTC)

$5\ m=BC$

The length of BC is 5 m. Therefore, the correct option is A.

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2 years ago

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vagabundo [1.1K]

Answer: 61
Solving Steps:

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2 years ago

Which equation illustrates the commutative property of addition?

lbvjy [14]

commutative property of addition
answer is

A. 12 + 6 + 15 = 12 + 15 + 6

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3 years ago

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Answer plzzzz What are the set of all natural numbers greater than or equal to 5?

nlexa [21]

5,6,7,8,9,10 probably

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2 years ago

Which complex number has an absolute value of 5? –3 + 4i 2 + 3i 7 – 2i 9 + 4

Ugo [173]

Answer:

Step-by-step explanation:

-3 + 4i

value = square( (-3)^2 + (4i)^2 ) = sqr(9 + 16) = sqr(25) = 5

The absolute value is like the Pythagoras theorem

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2 years ago