3 years ago

Which transformation could NOT be used to prove that two circles are congruent to one another?

Mathematics

1 answer:

EleoNora [17]3 years ago

6 0

Answer: D

Step-by-step explanation:

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Vaselesa [24]

The answer is B. Use the trig identity (sin x)^2+(cos x)^2=1. Since cos x=0.3090, sinx=+-\sqrt(1^2-0.3090^2)=+-0.9511. Since 0<x<90, sin x must be positive, so sin x=0.9511. tan x=sin x/cos x=0.9511/0.3090=3.0780.

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3 years ago

12−(−2) over a line 12−6÷2

joja [24]

Given 12−(−2) over a line 12−6÷2

We can use PEMDAS rule and solve the expression in the order as given below:-

1. Parentheses

2. Exponents

3. Multiplication

4. Division

5. Addition

6. Subtraction

Now solving for given expression:-

$\frac{12-(-2)}{12-(\frac{6}{2})}\\\\=\frac{12+2}{12-3}\\\\=\frac{14}{9}$

So final answer is 14/9 i.e. 14 over 9.

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3 years ago

Analyze the diagram below and complete the instructions that follow.<br> Find AEB.

aleksandrvk [35]

2x + 50 = 7x
50 = 5x
10 = x
2 (10) + 50
20 + 50
70
m<AEB = 70 degrees

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3 years ago

Read 2 more answers

The value of y varies directly as x, y is 9 when x is -3 what is the constant of variation k

exis [7]

Direct variation has the form y=kx. Given a point we can solve for the constant k.

y=kx, when y=9 and x=-3 becomes:

9=-3k

k=-3 so the constant of variation is negative 3

7 0

3 years ago

A proof in which you assume the opposite of what you want to prove

KonstantinChe [14]

Proof of Contradiction.

6 0

3 years ago