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2 years ago

What is the area of triangle ABC?

Mathematics

1 answer:

Solnce55 [7]2 years ago

4 0

Base time hight divided by two so you would multiply 3 by 5 which would be 15 and 15 divided by 2 is 7.5 so 7.5 is the area

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Heron’s formula: Area = An equilateral triangle has a semiperimeter of 6 meters. What is the area of the triangle? Round to the

nordsb [41]

Answer:

7 m^2

Step-by-step explanation:

$s = \dfrac{a + b + c}{2}$

$A = \sqrt{s(s - a)(s - b)(s - c)}$

$s = 6$

$\dfrac{a + b + c}{2} = 6$

$a = b = c$

$\dfrac{a + a + a}{2} = 6$

$3a = 12$

$a = b = c = 4$

$A = \sqrt{6(6 - 4)(6 - 4)(6 - 4)}$

$A = \sqrt{6(2)^3$

$A = \sqrt{48}$

$A = 6.92820...$

$A = 7~m^2$

4 0

2 years ago

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P=3y/q solve for y make sure to add steps pls

Likurg_2 [28]

Answer:

Solving for y gives:

$y = \frac{pq}{3}$

Step-by-step explanation:

Linear equations are the equations that are degree one equations. When it is asked to solve an equation for a specific variable that means that the specified variable has to be isolated on one side of the equation i.e. in the given question solving for y means isolating y on one side of the equation.

Given equation is:

$p = \frac{3y}{q}$

Multiplication property of equality(Multiplying both sides by q)

$p*q = \frac{3y}{q} * q\\pq = 3y$

Division property of equality(Dividing both sides by 3)

$\frac{pq}{3} = \frac{3y}{3}\\\frac{pq}{3} = y$

Hence,

Solving for y gives:

$y = \frac{pq}{3}$

7 0

2 years ago

Write the following numbers in Scientific Notation.

Flura [38]

Answer:

29.9 to the 6th power for number 2

0.1 to the -9 th power

i think lol

its better than ?

Step-by-step explanation:

4 0

3 years ago

Find the perimeter of the polygon graphed below. Round your answer to the nearest

Ilya [14]

Using the perimeter concept, it is found that the perimeter of the polygon is of 24.1 units.

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

The perimeter of a polygon is the sum of the lengths of all its sides.
One side has length 1 unit.

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

The second side is the hypotenuse of a right triangle with sides of length 3 and 4, thus, applying the Pytagorean Theorem:

$s^2 = 3^2 + 4^2$

$s^2 = 9 + 16$

$s^2 = 25$

$s = 5$

One of the sides has length of 5 units.

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

The third side is the hypotenuse of a right triangle of sides with lengths 5 and 7, thus:

$s^2 = 5^2 + 7^2$

$s^2 = 25 + 49$

$s^2 = 74$

$s = 8.6$

Length of 8.6 units.

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

The final side is the hypotenuse of a right triangle with sides of lengths 3 and 9, thus:

$s^2 = 3^2 + 9^2$

$s^2 = 9 + 81$

$s^2 = 90$

$s = 9.5$

Length of 9.5 units.

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

The lengths of the sides are: 1, 5, 8.6 and 9.5.
Thus, the perimeter is of:

$P = 1 + 5 + 8.6 + 9.5 = 24.1$

The perimeter of the polygon is of 24.1 units.

A similar problem is given at brainly.com/question/6139098

6 0

2 years ago

Did I get this right? If not could someone explain this to me?

emmasim [6.3K]

Correct!
Your notes on the right side are correct, too.

<em>In</em>dependent -- <em>not </em>dependent on another variable
Dependent -- dependent on another variable

The height of the plant varies because/due to of the quality/quantity of fertilizer.
So, the height is changed by the fertilizer.

Thus: height is dependent and fertilizer amount is independent.

4 0

2 years ago

Read 2 more answers