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ValentinkaMS [17]
3 years ago
5

Find the lowest common denominator.

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
4 0
The LCD is (x+2) ^{2}(x-2) ^{2} since x^{2} -4 factors into (x+2)(x-2).  The idea for a LCD is to have in all the denominators what makes up each individual denominator. 
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One sugar cookie recipe calls for 2 cups of sugar and makes 4-dozen cookies. Another recipe calls for 5 cups
Rashid [163]

Answer: don't know sorry

Step-by-step explanation:

4 0
3 years ago
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Jack spent $40 on new shoes then he spent half of what he had left on clothes finally he gave five dollars to his brother now he
aleksandrvk [35]
This is a working backwards problem.  You know he has $35 at the end.  Before he gave his brother $5, he would have $40, which is half of what he had before he bought the clothes, so he would have had $80.  Before he spent the $40 on shoes, he would have had $120, so the answer is $120.
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3 years ago
The owner of a new coffee shop is keeping track of how much each customer spends (in dollars). A random number table was used to
frosja888 [35]
I expect the mean of the sample to be 5.00
4 0
2 years ago
I now have another question to ask.
marissa [1.9K]

Answer:

23.6 ft

Step-by-step explanation:

Sketch a right triangle representing this situation.  The length of the hypotenuse is 26 ft and the angle of elevation from ground to top of ladder is 65°.  The "opposite side" is the reach of the ladder, which we'll call x.

Then:

                        opp

  • sin 65° = ----------
  •                 26 ft

or (26 ft)(sin 65°) = opp side = height off the ground of top of ladder.

Evaluating this, we get:

(26 ft)(0.906) = 23.56 ft, or, rounded off, 23.6 ft

The ladder reaches 23.6 ft up the side of the building.

8 0
3 years ago
Calculate the gradient of the straight line which joins A(2,-3) and B(6,9)<br>​
Pie

Answer:

Gradient: m = 3

Step-by-step explanation:

m = change in y/change in x

m = \frac{Y2-Y1}{X2-X1}

m = \frac{9-(-3)}{6-(2)}

m = 12/4

m = 3

5 0
3 years ago
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