MATHEMATICS MIDDLE SCHOOL

What is the area of a triangle whose side is 17 meters long

Answers

Answer 1

Answer:

Answer:

125.141

Step-by-step explanation:

Assuming that this is an equilateral triangle, I am going to divide this triangle in half to get a right triangle.

17 is our hypotenuse

17/2 = 8.5, this is one of our legs

The other leg is our height, which we will find.

We use Pythagoras Theorem to find the height/leg: $a^(2) +b^(2) =c^(2)$

$17^(2) -8.5^(2) = 216.75$

$√(216.75)$ = 14.72243186

Now, we use another formula to find the area of the triangle: $(Base*Height)/(2)$

14.72243186 × 17 = 250.2813416

250.2813416 ÷ 2 = 125.1406708

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Sparky has score of 70, 67

Answers

Answer:

your rich

Step-by-step explanation:

if you draw a triangle and draw a circle in the middle and shade the rest how do you find the area of the shaded part?

Answers

ok so the way is find the area of the triangle
find the area of the circle
area of triangle-area of circle=shaded

triangle area=(1/2)base times height
circlearea=pi(radius)^2

Calculate the distance between (3 + i) and (3 − i).

Answers

Answer:

2 units

Question:

Calculate the distance between (3 + i) and (3 − i).

Step-by-step explanation:

This problem is equivalent to the problem:

"Calculate the distance between the points (3,1) and (3,-1)."

Since the $x$ -coordinates are the same, this is a vertical distance.

A vertical distance be be found by computing the positive difference of the $y$ -coordinates. In other words, we need only the find the distance between the numbers $y=1$ and $y=-1$ on a number line.

This distance is 1-(-1)=1+1=2 units.

What is the ratio of the volume of the cone to the volume of the cylinder?

Answers

1:2:3 is the ratio of the volume of the cone to the volume of the cylinder

Answer:

1:2:3

Step-by-step explanation:

The volume of the cylinder is three times the volume of the cone. i.t 7. A cone, a hemisphere and a cylinder stand on equal bases and have the exactly same height.So, The ratio of the cylinder, cone and hemisphere is 1:2:3

PLEADE HELP! find the value of X. Round to the nearest tenth.

Answers

As suggested, we have to use the law of sines: it states that the ratio between a side and the sine of the opposite angle is constant in every triangle.

We know that one side length is 11, and the opposite angle is 27°

Another side length is 15, and the opposite angle is x.

So, the law of sines states that

$(11)/(\sin(27))=(15)/(\sin(x))$

Solving for $\sin(x)$ we have

$\sin(x) = (15\sin(27))/(11)$

Which implies

$x=\arcsin\left((15\sin(27))/(11)\right)$

Put this into a calculator to get

$\arcsin\left((15\sin(27))/(11)\right)\approx 0.7$

Answer:

x ≈ 28.2

Step-by-step explanation:

Using the sine rule then

$(sinx)/(15)$ = $(sin27)/(11)$ ( cross- multiply )

11sinx = 15sin27° ( divide both sides by 11 )

sin x = $(15sin27)/(11)$ ≈ 0.61907..

x = $sin^(-1)$ (0.61907 ) ≈ 28.2

For every $50.00. Michael earns, he saves $5. for the future. How much money will he have saved when he earns a total of $500.Question 6 options:

A. He will have saved $25.

B. He will have saved $150.

C. He will have saved $500.

He will have saved $50.

Answers

The answer is D

This is because if for every $50 he saves $5, and he has saved a total of $500, you can set up a proportion to find out how much money he has saved at that point.

The proportion is as follows:

50/5 == 500/x

x is equivalent to the amount of money he has saved

You can cross multiply to get the following equation:

50x == 2500

To isolate x, you must divide both sides by 50, giving you an answer of:

x = 50

This is the same as option D

D. He will have saved $50

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