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3 years ago

What is the reflection of an object referred to? post-image image transformation pre-image

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

5 0

Answer: image transformations

Step-by-step explanation:

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How many ounces of gold are in a 16-karat gold chain that weighs 2.6 ounces?

oksano4ka [1.4K]

A 16 karat gold means that there are 16 parts of gold in 24 parts of the gold chain. Therefore the weight of the pure gold is:

pure gold = (16 / 24) * 2.6 ounces

pure gold = 1.73 ounces

7 0

3 years ago

If someone was born in 2018 September 12th how old will they be in 2082?

Margaret [11]

Answer: 64 years old

Step-by-step explanation:You subtract 2082 by 2018 to get the sum of 64

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3 years ago

Read 2 more answers

PLEASE HELP WITH THESE 4 PROBLEMS

Marizza181 [45]

Answer:

y = -5/2x + 5
y = 2x -1
y = 24/11
y = 4x + 4

Step-by-step explanation:

To solve for y, subtract the x-term and divide by the coefficient of y.

5x +2y = 10

2y = -5x +10

y = -5/2x + 5

2y -4x = -2

2y = 4x -2

y = 2x -1

7y +4y = 24

y = 24/11

We assume there is a typo, but cannot tell what it is. Use the same method as described and demonstrated for the other problems.

-2x +1/2y = 2

1/2y = 2x +2

y = 4x +4

8 0

3 years ago

What’s the domain and range for these two?

user100 [1]

Step-by-step explanation:

1) the domain is from -3 to 5 D [-3,5]

the range is from -5 to -2. R [-5,-2]

2)the domain is from -3 to 6 but not including 6 D [-3,6)

the range is from -5 but not including -5 to 2. R (-5,2]

4 0

3 years ago

Please help with the question in the picture!

Stella [2.4K]

Answer:

Tan C = 3/4

Step-by-step explanation:

Given-

∠ A = 90°, sin C = 3 / 5

METHOD - I

Sin² C + Cos² C = 1

Cos² C = 1 - Sin² C

Cos² C = $1 - \frac{9}{25}$

Cos² C = $\frac{25 - 9}{25}$

Cos² C = $\frac{16}{25}$

Cos C = $\sqrt{\frac{16}{25} }$

Cos C = $\frac{4}{5}$

As we know that

Tan C = $\frac{Sin C}{Cos C }$

Tan C = $\frac{\frac{3}{5} }{\frac{4}{5} }$

Tan C = $\frac{3}{4}$ 

METHOD - II

Given Sin C = $\frac{3}{5} = \frac{Height}{Hypotenuse}$

therefore,

AB ( Height ) = 3; BC ( Hypotenuse) = 5

∵ ΔABC is Right triangle.

∴ By Pythagorean Theorem-

AB² + AC² = BC²

AC² = BC² - AB²

AC² = 5² - 3²

AC² = 25 - 9

AC² = 16

AC ( Base) = 4

Since,

Tan C = $\frac{Height}{Base}$ 

Tan C = $\frac{AB}{AC}$

Hence Tan C = $\frac{3}{4}$ 

4 0

3 years ago