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3 years ago

A. Translation B. Glide reflection C. Rotation

Mathematics

1 answer:

Sati [7]3 years ago

7 0

Answer:

Rotation.

Step-by-step explanation:

The preimage is rotated about a center clockwise 90 degrees.

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3/4 x 21 show your work

Mashcka [7]

3/4 x 21 would be 15.75.
All you had to do was multiply 3/4 and 21.
Hope this helps.

4 0

3 years ago

a meal cost $15. we gave the waiter $18 and told him that the difference was his tip. what percent of the cost of the meal was t

Stella [2.4K]

18 - 15 = 3
3/15 = n/100
15n = 300
n = 20

6 0

3 years ago

Read 2 more answers

Help please. I need this in a few minutes

Ghella [55]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Math can you guys help me PLS

MissTica

Answer:

The surface area of the triangular prism is 84 square centimeters.

Step-by-step explanation:

The surface area of a figure is exactly what it means, the area of its outer surface or the added areas of each face that makes the figure.

Nets are a way to find surface area easier because it is an outline of the faces of the 3d figure.

But since we don’t have a net, we will just find the area of each face that forms this right triangular prism:

The two congruent triangular bases:

1/2 x 4 x 3 = 6 cm^2

6 x 2 = 12 cm^2

Lateral bottom rectangular face:

6 x 3 = 18 cm^2

Lateral to the right rectangular face:

5 x 6 = 30 cm^2

Lateral to the left rectangular face:

4 x 6 = 24 cm^2

Add up all the values:

12 + 18 + 30 + 24 = 84

The SA is 84 square centimeters

4 0

3 years ago

Help needed math 3 - 10 points read closely

inessss [21]

<h2>Hello!</h2>

The answer is:

The answer is the fourth option,

$f(-3)=-\frac{1}{3}$

Piecewise functions are functions that are composed by two or more expressions, the expression to use will depend of the domain or input that we need to evaluate.

We are given the piecewise function:

$\left \{ {{\frac{1}{x}, if x$

There, we know that:

We should use the first expression if the value to evaluate is less than -2.

So, for this case, the function will be:

$f(x)=\frac{1}{x}$

We should use the second expression if the value to evaluate is greater or equal than 2.

So, for this case, the function will be:

$f(x)=x^{2}$

Now, since we are given that the value to evaluate is -3, and its less than -2, we need to use the first expression, and evaluate it.

$-3$

So, evaluating the function we have:

$f(x)=\frac{1}{x}$

$f(-3)=\frac{1}{-3}$

$f(-3)=-\frac{1}{3}$

Hence, we have that the answer is the fourth option,

$f(-3)=-\frac{1}{3}$

Have a nice day!

7 0

3 years ago