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3 years ago

I need help on these ASAP !!!

Mathematics

2 answers:

liq [111]3 years ago

7 0

Answer:

IDK.

Step-by-step explanation:

Ask ur teacher for help.

I hope this helps u.

chubhunter [2.5K]3 years ago

3 0

Answer:

A) 102

C) 102

D) 78

Step-by-step explanation:

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Find the area. 5cm 3cm 4 cm

Ostrovityanka [42]

Answer:

6 cm²

Step-by-step explanation:

Since 3 side lengths are given, I assume that this figure is a triangle. The area of a triangle can be determined by using hero's formula.

$\text{Area of triangle} = \sqrt{\text{s(s - a)(s - b)(s - c)}$

⇒ s = Perimeter/2

⇒ a, b, and c = side lenths of triangle

Replacing a, b, and c as the given side lengths:

$\implies \text{Area of triangle} = \sqrt{\text{s(s - 5)(s - 3)(s - 4)}$

Determining the perimeter of the triangle:

$\text{Perimeter of triangle = Sum of it's side lengths}$

$\implies \text{Perimeter of triangle =}\ 5 + 4 + 3$

$\implies \text{Perimeter of triangle =}\ 12 \ \text{cm}$

Determining the half of perimeter:

$\text{Half of perimeter} = s = \dfrac{\text{Perimeter}}{2}$

$\implies s = \dfrac{12}{2}$

$\implies s = 6$

Replacing the value of "s" in the formula:

$\implies \text{Area of triangle} = \sqrt{\text{6(6 - 5)(6 - 3)(6 - 4)}$

Evaluating the area:

$\implies \text{Area of triangle} = \sqrt{\text{6(6 - 5)(6 - 3)(6 - 4)}$

$\implies \text{Area of triangle} = \sqrt{\text{6(1)(3)(2)}$

$\implies \text{Area of triangle} = \sqrt{\text{6(6)}$

$\implies \text{Area of triangle} = 6 \ \text{cm}^{2}$

6 0

1 year ago

ASAP HELP 10.Simplify the following expression: 2n+4-0.3n-3

Oksana_A [137]

1.7n +1
I think the is the answer
I hope this helps :)

7 0

2 years ago

HELP ASAP!

Ann [662]

Answer:

9 and 41 over 51

Step-by-step explanation:

divide 41 2/3 by 4 1/4

8 0

3 years ago

Read 2 more answers

What is the area of a circle with a diameter of 25

PtichkaEL [24]

Answer:

find using calculator:)

Step-by-step explanation:

pie X (25 divided by 2) X (25 divided by 2) = answer

4 0

2 years ago

Read 2 more answers

I need help please!!!!!!

artcher [175]

I think its A please dont get mad if its wrong

8 0

2 years ago