Answer:
Step 4
Step-by-step explanation:
Tasha was correct in all the steps leading up to the fourth one. However, in the fourth step was where she messed up.
She said that:
However, when we have a negative exponent, in order to get rid of the negative, we simply take the reciprocal of the number and then make the exponent positive. Here, the answer should be:
Answer:
d ≥ c
Step-by-step explanation:
Answer: 4x2 + 32x − 80 = 0
Step-by-step explanation:
Area of a rectangle is given by
A = l*w
The length is (2x+10) and the width is (2x+6)
A = (2x+10)(2x+6)
FOIL
first 2x*2x = 4x^2
outer 2x*6 =12x
inner 2x*10 =20x
last 10*6=60
Add this together
4x^2 +12x+20x +60 = 4x^2 +32x+60
This must equal 140 inches
4x^2 +32x+60 = 140
Subtract 140 from each side
4x^2 +32x+60-140 = 140-140
4x^2 +32x -80=0
9514 1404 393
Answer:
E. 40 and 33
Step-by-step explanation:
The Pythagorean theorem tells you the sum of the areas of the smaller squares will match the area of the largest square.
The answer choices have sums of ...
A: 76; B: 73; C: 96; D: 66; E: 73
So, <em>choices with the correct sum are B and E</em>.
If this question asks you to "choose all that apply," then B & E will be your answer choices.
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We note that the areas of the smaller squares appear to be not much different in size. If their areas were 23 and 50, the smaller square would be less than half the size of the larger one. So, if the figure is drawn approximately to scale, the choice of <em>40 and 33 is a better choice</em>.
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