Answer:
b)-9,2
Step-by-step explanation:
x^2+7x-18=0
x^2+9x-2x-18=0
x(x+9)-2(x+9)=0
(x+9)(x-2)=0
therefore
x=-9
x=2
Answer:
The circumference of the yellow circle is
or
approximately, the circumference of the blue circle is
or
approximately, the circumference of the green circle is
or
approximately, the circumference of the red circle is
or
approximately, and the circumference of the pink circle is
or
approximately.
Step-by-step explanation:
To find the circumference of a circle, you need to multiply the diameter of the circle and multiply it by
. In this case, the circumferences of the yellow circle are
or approximately
, the circumference of the blue circle is
or approximately
, the circumference of the green circle is
or approximately
, the circumference of the red circle is
or approximately
, and the circumference of the pink circle is
or approximately
.
36j + j = 37j
Explanation.
You could translate this sum into a normal sebtence: I have 36 apples and add 1 apple more.
The sum will then be 36 apples + apple = 37 apples.
Replacing the word (in this explanation 'apple') by a letter learns us 36a + a = 37a
Hence 36j + j = 37j
6x + 9y =36 is the Answer
<em>6</em><em>-</em><em>1</em>
<em>=</em><em>5</em>
<em>F</em><em>i</em><em>v</em><em>e</em><em> </em><em>pi</em><em>g</em><em>s</em><em> </em><em>are</em><em> </em><em>left</em><em>.</em><em>.</em><em>.</em>