Answer:
acute triangle
Step-by-step explanation:
For an acute, the angles should be less than 90°
right should be equal to 90°
obtuse, angles should be less than 180 but greater than 90
Answer:
5
Step-by-step explanation:
20% of 25 = 5
Hope this helps! If it did, please mark it as brainliest! It would help me out a lot! :D
Answer:
<u>Squaring a number.</u>
Step-by-step explanation:
The square root is an operation that undoes an exponent of 2, which is the inverse operation of squaring a number.
Answer:
12 square cm correct to 2 significant figures
Step-by-step explanation:
Area of a Rectangle = L X B = 2.1 X 5.6 = 11.76 square cm
To round your result to 2 significant figure, we start counting from the left from the first non-zero digit.
The first two digits are 11 but because the number after is 7 (greater than 4), we round up to 12.
11.76 square cm = 12 square cm correct to 2 significant figures
Answer:
10 and 12
Step-by-step explanation:
let the consecutive even integers be n and n + 2 , then
n² - 64 = 3(n + 2) ← distribute parenthesis
n² - 64 = 3n + 6 ( subtract 3n + 6 from both sides )
n² - 3n - 70 = 0 ← in standard form
(n - 10)(n + 7) = 0 ← in factored form
Equate each factor to zero and solve for n
n - 10 = 0 ⇒ n = 10
n + 7 = 0 ⇒ n = - 7
Since n must be a positive even integer then n = 10 and n + 2 = 10 + 2 = 12
The 2 numbers are 10 and 12
