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3 years ago

Triangle GCH is similar to triangle DCE. Find CH

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

5 0

Answer:

x = 65

Step-by-step explanation:

if two triangles are similar then we can use the similarity ratio to find the length of CH

60/156 = x/169 cross multiply expressions

156x = 10140 divide both sides by 156

x = 65

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What percent of 2358 is 90? Step by step please

hoa [83]

Answer:

3.8%

Step-by-step explanation:

90/2358=0.038

7 0

4 years ago

Read 2 more answers

Please help, would be greatful :)

lana [24]

Answer:

x ≈ 22.0°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = x°

Opposite Leg = 3

Hypotenuse = 8

Step 2: Find x°

Substitute [Sine]: sinx° = 3/8
Inverse trig: x° = sin⁻¹(3/8)
Evaluate: x = 22.0243°
Round: x ≈ 22.0°

5 0

3 years ago

Simplify: 3 + 2(8n + 4) + 9n please show how you got your answer

nevsk [136]

3 + 2(8n + 4) + 9n
Distribute the 2
3 + 16n + 8 + 9n
Combine like terms
Your final answer is 11 + 25n

3 0

3 years ago

An object with a motional kinetic energy of 96J. Its velocity is 4m/s. What is its mass?

SVETLANKA909090 [29]

KE = 1/2mv^2
96 = 1/2m(16)
96 = 8m
m = 12 kg

8 0

3 years ago

Calvin hiked 2,384 miles last year. This year, he has hiked 3,763 miles. How many miles has Calvin hiked in the past two years i

const2013 [10]

Answer:

The answer to this question is 6,147.

Step-by-step explanation:

2,384 + 3,763=6,147

5 0

2 years ago