F(x)=-3x
f(-5)=-3* (-5)
=15
hope ths help u !!!!!!!!!
^_^
Answer:
a) 625; 625; right triangle
b) 205; 256; obtuse triangle
Step-by-step explanation:
The squares are values found in your memory or using a calculator. It is straightforward addition to find their sum.
<h3>left side</h3>
7² +24² = 49 +576 = 625
25² = 625
The sum of the squares of the short sides is the square of the long side, so this is a right triangle.
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<h3>right side</h3>
6² +13² = 36 +169 = 205
16² = 256
The long side is longer than is needed to form a right triangle, so the largest angle is more than 90°. This is an <em>obtuse triangle</em> (as shown).
"a" is an absolute value, so that means that after whatever is in the brackets is solved as far as it can be, it becomes a positive value, no matter what it is. So, |-1.4| is equal to 1.4. The equation is 1.4+ (-2.7) or 1.4 - 2.7 which equals -1.3
Can you provide the model?
