If a > 0 and b < 0, then which of the following must be true.ab > 0
a + b < 0
a - b > 0
a + b > 0
b - a > 0
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Answer 1
Answer:
We need to find the correct answer on the given choices:
If a > 0 and b < 0, then The answer is a + b > 0 let’s give a specific example: let’s have a = 1 and b = .20
Now, let’s try calculating if our answer is correct. Thus a + b > 0 => a + b => 1 + .20 => 1.20 and 1.20 is greater than 0. =>Therefore 1.20 > 0 = a + b > 0
In the figure ABC and XBY are isosceles triangles. AC=6 cm. And XY=4 cm. Find the area of the shaded region.
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Area of the triangle is expressed by the product of the base and the height divided by two. This is from the idea that a parallelogram having an area of length times width can be divided yielding to two triangles.
Area of shaded region = Area of triangle ABC - Area of triangle XBY Area of triangle ABC = (6) (6) / 2 = 18 cm^2 Area of triangle XBY = (4) (4) / 2 = 8 cm^2 Area of shaded region = 18 - 8 = 10 cm^2
Which is a better buy, a 24 ounce box of ceral for $3.69 or 36 ounce box of ceral for $4.89
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The lesser the price the better the buy.
$3.69 ÷ 24 ≈ $0.15
$4.89 ÷ 36 ≈ $0.14
36 ounce box of ceral for $4.89 is the better buy.
What does the mean absolute deviation describe about the data??? Plz help me, I need it to complete my hw... Plz!
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Another way to describe the variability of a set of data is to use its mean absolute deviation. The mean absolute deviation of a set of data is the average distance between each data value and the mean.
(2 + 3x)° find the value of x
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If that is a expoet is 0 its 1
Please help and write answer as decimal
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52/28 = =1,85714 ...
so 1,9 if u have 5 or more in next place u round it up
do u multiply and if so the answer is 14.56
Solve 4 1/4 - 2 11/20
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Change them into improper fractions by multiplying the denominator(bottom) by the whole number then adding the numerator - You must have a common denominator Multiply by ⇒ -= Simplify by dividing the numerator by the denominator 34÷20=⇒ reduced You answer is
This could be solved as a group of mixed numbers, but I like to work with improper fractions more. 17/4 - 51/20 Next, you need to find a common denominator. 85/20 -51/20 When adding and subtracting fractions, you only work in the numerator, and the denominator stays the same. 34/20 Then, you just simplify. Improper fraction: 17/10 Mixed number: 1 7/10 Decimal: 1.7