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3 years ago

Given: ∠D and ∠B are right angles DC || AB Prove: △ADC ≅ △CBA

1 answer:

4 0

Since angle CDA + angle ABC = 180 then DC is Parallel to AB by transversal of parallel line theorem c-pattern for co-interior angles. to help visualize it draw it

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Estimate 60% of 52 (WITH WORK!)

Maru [420]

Answer:

Step-by-step explanation:

52 is 100%

you divide 52 by 10 to get 10%

5.2*6(because 60%)

=31.2

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3 years ago

How are percents related to rates?

BartSMP [9]

Answer:

A percentage is defined as the ratio of two numbers times 100.

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3 years ago

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Mary earns $7.25 an hour. She can determine her salary, s, for the number of hours she works, h, by using the equation s = 7.25h

photoshop1234 [79]

Answer:

See the explanation bellow

Step-by-step explanation:

Given data

We are told that Mary earns $7.25 an hour

The function for her salary is s = 7.25h

<em>s is a function of h because h is the time, and s a dependent variable on the time, the longer she works the more money she makes</em>

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3 years ago

Find all values of in the interval [0, 2π] that satisfy the equation. Enter your answers from smallest to largest. (Enter NONE i

Mrrafil [7]

Answer:

Step-by-step explanation:

Given the equation $2\sin^2(x) = 1 \\$ , we are to find all the values of x in the interval [0, 2π] that satisfies the equation.

Simplifying the equation:

$2\sin^2(x) = 1 \\\\sin^2x = \frac{1}{2} \\\\$

Square both sides of the equation;

$\sqrt{sin^2x } = \sqrt{\frac{1}{2} } \\\\sin(x) = \sqrt{0.5}\\ \\sin(x) = 0.7071\\\\x = sin^{-1}0.7071\\\\x \approx 45^0$

The general formula for sin(x) is x = nπ + (-1)ⁿ∝ where n = 0, 1, 2, 3...

Since ∝ = 45° = π/4.

x = nπ + (-1)ⁿπ/4

when n = 1

x = π + (-1)¹π/4

x = π - π/4

x = 3π/4

<em>Hence the values of x within the given interval are π/4 and 3π/4</em>

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4 years ago

Help please!! ill give brainliest!

Juli2301 [7.4K]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Linear equation.

answer is

====> 4n-7

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3 years ago

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