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Murljashka [212]
3 years ago
11

Why is the formula for the area of a triangle one half the area for a rectangle

Mathematics
1 answer:
Naya [18.7K]3 years ago
8 0
The area of a triangle is one half the area for a rectangle because the triangle is half of a rectangle with equal base and height
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Camille is attending a fundraiser. She pays for her admission and buys raffle tickets for $ 5 $5 each. If she buys 1 0 10 raffle
tatyana61 [14]
The question is a little confusing, but I think the answer goes like this:
135 = admission + 5x, and if she bought 10 tickets:
135 = admission + 50, so admission must have cost her $85
The function would be f(x) = 85 + 5x, where x is equal to the number of raffle tickets purchased
6 0
3 years ago
£2500 is invested at 3.6% compound interest per annum.
kirill115 [55]

Answer:

its going to be 20 years

Step-by-step explanation:

1.036

4 0
3 years ago
Please please please I'm begging you help me find the y intercept for these I will give brainliest
konstantin123 [22]

Answer:

1. (2+2)/(-3+4)= 4/1= 4

y + 2 = 4(x + 4)

y + 2 = 4x + 16

y = 4x + 14 y-intercept:(0,14)

2. (0+5)/(-1+2)= 5/1= 5

y + 5 = 5(x + 1)

y + 5 = 5x + 5

y = 5x

y-intercept (0,0)

3. (-1+1)/(-5-3)= 0/-8= 0

y + 1 = 0(x - 3)

y + 1 = 0

y= -1

6 0
3 years ago
If the perimeter of an equilateral triangle is 30cm, find its area. ​
lora16 [44]

Answer:

A ≈ 43.3 cm²

Step-by-step explanation:

the area (A) of an equilateral triangle is calculated as

A = \frac{s^2\sqrt{3} }{4} ( s is a side of the triangle )

given perimeter = 30 cm , then

s = 30 cm ÷ 3 = 10 cm

then

A = \frac{10^2\sqrt{3} }{4} = \frac{100\sqrt{3} }{4} = 25\sqrt{3} ≈ 43.3 cm² ( to the nearest tenth )

7 0
2 years ago
I need help with this Maths Homework Question.
Monica [59]

Answer:

1. 41/45.

2. x/(x^2+3x+6)

Step-by-step explanation:

1.

So first we fill the ven diagram.

There are 240 in band, so we fill that. 60 students are in both, we put that in the middle, and there are 110 people in choir.

now, since we want the probability that a student is chosen that is in band, and choir, and both. We add all this up

240 + 60 + 110 = 410.

The total possible outcome is 410, and the total outcome is 450, so the answer is

410/450 = 41/45

2.

First, to get the total outcomes, we have to add all the expressions together.

x(x-2) + x + 2x+8 = x^2 - 2 + x + 2x + 8 = x^2 - 2 + 3x + 8 = x^2 + 3x + 6.

Since that is the total outcome, we have to find the possible outcomes.

The problem wants BOTH from the 20th century and British, so it is x.

x/(x^2+3x+6). We cannot simplify any further, thus x/(x^2+3x+6) is our answer

3 0
2 years ago
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