3 years ago

3. The area of a triangle-shaped piece of wood

Mathematics

1 answer:

DanielleElmas [232]3 years ago

3 0

Answer:

12.6 square inches

Step-by-step explanation:

A=(1/2)bh

A=(1/2)12*2.1

A=12.6 square inches

You might be interested in

If y varies directly as x, and y is 180 when x is n and y is n when x is 5, what is the value of n?

Verizon [17]

The value of 'n' would be 30

7 0

3 years ago

What is the slope of this graph?

Sever21 [200]

Answer:

-3/4

Step-by-step explanation:

First, pick two coordinates.

(0,2) and (4,-1)

Then do the rise over run or y/x.

The y is 3 and the x is 4. That is 3/4.

Since the line is going down, it will be negative.

The answer is -3/4.

6 0

3 years ago

On a coordinate plane, triangle L M N has points (1, negative 1), (3, 2), and (1, 3). An altitude is drawn from point M to point

PIT_PIT [208]

The answer is 4 units.

7 0

3 years ago

Read 2 more answers

In the diagram, the radius of the outer circle is

JulijaS [17]

the value of x is 8 cm.

<u>Step-by-step explanation:</u>

Correct Question : In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 220π cm2. What is the value of x? Enter your answer in the box.

We have ,

the area of a circle = πr²

the outer circle area = $\pi(2x)^2 =4\pi x^2$

the inside circle area = $\pi (6)^2= 36\pi$

According to Question,

the outer circle area - the inside circle area = he shaded region

⇒ $\pi (4x^2)-36\pi =220\pi$

⇒ $x^2-9 =55$

⇒ $x^2=64$

⇒ $x =\sqrt{64}=8$

Therefore , the value of x is 8 cm.

5 0

2 years ago

In how many ways can a teacher arrange 6 students in the front row of a classroom with a total of 20 students?

Vikki [24]

This is a combination of 20 studants, 6 to 6:

$C_{2,6}=\frac{20!}{(20-6)!6!}=\frac{20!}{14!6!}=\frac{20.19.18.17.16.15.14!}{14!.6.5.4.3.2.1}=38,760 \ ways$

8 0

3 years ago