Answer:
Step-by-step explanation:
10 pens - 2 pens = 8 pens
Write 8 of 10 as a fraction.
You get , right?
Now, simplify 8/10.
You get 4/5.
Two sides of a triangle measure 7cm and 15cm. Which could be the measure of the third side of the triangle?
2 answers:
Answer:
18 cm is the answer.
Step-by-step explanation:
We know by triangle inequality theorem that “The sum of any two sides of a triangle should be greater than the third side”.
Herr, 2 sides are given as 7 cm and 15 cm.
Let the third side of a triangle be x
According to the above statement:
Now, we can see that the length of the third side must lie between 1 cm and 18 cm to form a triangle if 7 cm and 15 cm are its other two sides.
So, the answer is 18 cm.
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Answer:
22
Step-by-step explanation:
Find f(-3) :
f(x) = x² + 2x for x ≤ -3
That means for those values of x, less than or equal to -3, this is the function.
So, f(-3) = (-3)² + 2(-3) = 9 - 6 = 3
Now, f(-1) :
From the given data, we see it is: f(x) = 2
We take this because -1 lies between -3 and 4.
Now, f(-1) = 2
=>
For f(4) :
Clearly, the function is:
Therefore, <u>f(-3) + f(-1) - f(4) = 3 + 18 - (-1) = 3 + 18 + 1 = 22.</u>