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3 years ago

Quick!!

Mathematics

2 answers:

Korolek [52]3 years ago

6 0

Answer:

Step-by-step explanation:

lateral faces are the faces that don't include the base(s).

In this case the base of a triangular pyramid is a triangle.

Therefore there are three sides on the base, and 3 lateral faces.

Ira Lisetskai [31]3 years ago

3 0

Answer:

c) three

-----------------------------------------------------------------------------------------------------------------

Step-by-step:

The tetrahedron is a triangular pyramid with equilateral triangles on each face.

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Rectangle URST undergoes a dilation centered at the origin. The result is rectangle U'R'ST. Which rule describes

wel

Answer:

The rule depends on the scale factor.

Step-by-step explanation:

Hi there,

1) Many, I'd say mostly, dilations is centered at the origin (0,0) of the cartesian plane. Like the picture below.

2) So now, what's left to do is what is the scale factor? What coefficient that multiplies the original rectangle URST, will result the U'R'S'T'?

3) Since no coordinates, no options or any numerical value were given, then I've made one example.

Check below

If you do have the coordinates of each point then divide each coordinate this way

$\frac{U'(x,y)}{U(x,y)}=\frac{R'(x,y)}{R(x,y)}=\frac{S'(x,y)}{S(x,y)}=\frac{T'(x,y)}{T(x,y)}=scale \:factor\\\frac{U'(-4,4)}{U(2,2)}\Rightarrow U'=2U\\(x,y)=D2(x,y)$

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3 years ago

Multiply -1/2 c(4c -2) Please ASAP

nalin [4]

Answer:

-2c^2 + c

Step-by-step explanation:

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3 years ago

WHAT IS EQUIVALENT TO THE INEQUALITY y/2 -6 <8 ? PLEASE HURRY ITS DUE 10:50

Oksanka [162]

Y/2 - 6 < 8
y/2 < 14
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3 years ago

Read 2 more answers

Which statements are true? Choose all answers that are correct. A. All rectangles are parallelograms. B. All squares are rectang

alekssr [168]

The correct answers are:
A, B and C.

Explanation: 
A parallelogram is a quadrilateral with both pairs of opposite sides parallel.
A rectangle is a parallelogram with all right angles, so yes, every rectangle is a parallelogram.
A square is a parallelogram with all right angles and all congruent sides; since it is a parallelogram with all right angles, every square is a rectangle.
A rhombus is a parallelogram with all congruent sides.
Since a square is a parallelogram with all congruent sides, then every square is a rhombus.
A trapezoid is a quadrilateral with one pair of parallel sides. Since a rhombus is a parallelogram, with 2 pairs of parallel sides, rhombus are not trapezoids.

4 0

3 years ago

Tan A+ Tan (90-A) = secA .sec (90-A)

sergeinik [125]

Answer:

see explanation

Step-by-step explanation:

Using the cofunction identities

tan(90 - A) = cotA and cscA = sec(90- A)

Consider the left side

tanA + tan(90 - A)

= tanA + cotA