Answer:
3n/8 ≤ 13
Step-by-step explanation:
The situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C
<h3>How to determine the situation?</h3>
The expression is given as:
2 - 5
When the expression illustrates change in temperature, the interpretation can be:
An initial temperature of 2°C decreases by 5°C
Hence, the situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C
Read more about expressions at:
brainly.com/question/723406
#SPJ1
Answer:
105°
Step-by-step explanation:
105°
Consecutive odd integers are 2 apart
they 2 numbers are
n and n+2
their product is 99
n times n+2=99
n(n+2)=99
n²+2n=99
minus 99 both sides
n²+2n-99=0
what 2 numbres multiply to -99 and add to get 2
if you can't do that
complete square
n²+2n+1-100=0
(n+1)²-100=0
(n+1)²=100
sqrt both sides
n+1=+/-10
n=-1+/-10
n=-11 or 9
if n=-11, then n+2=-9
if n=9 then n+2=11
the integers are -11 and -9 or 9 and 11
Question: Find the perimeter of the right triangle. If necessary, round to the nearest tenth. 4 cm 15 cm a. 15.5 cm
b. 30 cm
c. 60 cm
d. 34.5 cm
Answer:
d. 34.5 cm
Step-by-step explanation:
Applying
Perimeter of the right triangle (P) = a+b+c
P = a+b+c.................... Equation 1
But we can find the hyotenuse (a) using pythagoras theorem
a² = b²+c²
a = √(b²+c²)............... Equation 2
Substituting equation 2 into equation 1
P = √(b²+c²)+b+c................... Equation 3
From the diagram,
Given: b = 4 cm, c = 15 cm
Substitute these values into equation 2
P = √(4²+15²)+4+15
P = √(241)+4+15
P = 15.5+4+15
P = 34.5 cm
Hence the right answer is d. 34.5 cm