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Kruka [31]
3 years ago
15

In the diagram, the length of segment BC is 23 units,

Mathematics
2 answers:
erica [24]3 years ago
6 0

Answer:

33

Step-by-step explanation: i did the test

SIZIF [17.4K]3 years ago
5 0

Answer:

The length of segment DC 33 units.

Step-by-step explanation:

Given:

The length of segment BC is 23 units.

To find:

Length of segment DC=?

Solution:

AB = 2x + 7

From the figure ,AB = BC

2x + 7 = 23

2x = 23 - 7

2x = 16

x = 8

In the Δ ABD and ΔCBD

(1) AB = BC(As given in the figure.)

(2) ∠DBA = ∠DBC = 90°

(3) BD = BD(Common side of both the triangle.)

Thus by using SAS congurence property .

Δ ABD ≅ ΔCBD

Thus AD = DC(Corresponding sides of the congurent triangle.)

Thus AD = 4x + 1

Substituting  x = 8

AD = 4 \times 8 + 1

AD = 32 + 1

AD    = 33 unit

Thus AD = DC = 33 unit

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ANSWER:

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STEP-BY-STEP:

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Liono4ka [1.6K]

Answer:

Option C is the correct answer.

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Step-by-step explanation:

We are told that the insurance payment for the car follows a certain pattern that can be represented through an expression. The payment is decreasing by $20 every year. As we don't know the total payment amount per period, so we cannot calculate how much is paid per period/year for insurance but we can calculate the rate at which this payment is decreasing.

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Nata [24]

Answer:

<h2>41.57 cm²</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
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<h3>tips and formulas:</h3>
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simplify fraction:

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