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3 years ago

Helpp me please

Mathematics

1 answer:

malfutka [58]3 years ago

5 0

Answer:

1. a, 2. d, 3. b

Step-by-step explanation:

a) Intersecting lines,
It is not a mathematical system unlike the other options

d) Theorem.

In mathematics and logic, a theorem is a non-self-evident statement that has been proven to be true, either on the basis of generally accepted statements such as axioms or on the basis of previously established statements such as other theorems. (Wiki definition)

b) Line.

Angle is defined.
Line has undefined width and thickness.
Plane has undefined thickness.
Point has undefined length, width and thickness.

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Find the missing side lengths. Answers are in simplest radical form with the denominator rationalized

Roman55 [17]

Answer:

Option B.

Step-by-step explanation:

The given triangle is a right angle triangle.

In a right angle triangle,

$\tan \theta=\dfrac{Perpendicular}{Base}$

In the given triangle,

$\tan (45^{\circ})=\dfrac{v}{7}$

$1=\dfrac{v}{7}$

$7=v$

Using Pythagoras theorem, we get

$hypotenuse^2=Perpendicular^2+Base^2$

$u^2=v^2+7^2$

$u^2=7^2+7^2$

$u^2=2(7^2)$

Taking square root on both sides, we get

$u=\sqrt{2(7^2)}$

$u=7\sqrt{2}$

Therefore, the correct option is B.

6 0

3 years ago

Please help me with this!

Assoli18 [71]

Answer:

___________________________________________________

360 — A

___________________________________________________

Step-by-step explanation:

This is a square based pyramid. Which means that all of the triangles have the same area. All you need to do is find the area of one triangle, multiply it by 4, and add that to the area of the square base.

___________________________________________________

Step 1) FIND THE AREA OF ONE TRIANGLE

Imagine the triangle as a flat 2D shape. The height of this shape would be 13km, that mush is given to us. The length is also given, 10km.

How to find the area of a triangle:

Multiply the height times the width and divide the result by 2.

1. 13 x 10 = 130

2. 130/2 = 65

The area of this triangle is 65km squared.

___________________________________________________

Step 2) MULTIPLY BY 4

65 x 4 = 260

___________________________________________________

Step 3) FIND THE AREA OF THE SQUARE

When you find the area of a square, all you need is the length of one edge. That is 10km in this case.

Multiply this length by itself,

10 x 10 = 100

___________________________________________________

GETTING THE FINAL ANSWER

Add all your results :

260 + 100 = 360

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3 years ago

The probability of a certain player making a three-point shot is 1/14. What is the probability he does not make his next shot?

kari74 [83]

Answer:

13/14

Step-by-step explanation:

If the player chance of making it is 1/14 the remaining chances are the chances he will miss it.

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4 years ago

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lbvjy [14]

Answer:

1/25 or 0.04

Step-by-step explanation:

When you use 13/325 , you would get:

13/325

Divide by 13, we got:

1/25 or 0.04

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