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Vladimir79 [104]
3 years ago
11

4. Are the lines parallel, perpendicular, or neither?

Mathematics
1 answer:
Lelu [443]3 years ago
4 0

Answer:

Perpendicular

Step-by-step explanation:

Intersect over each other

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Loretta places 20 red tiles in a bag. How many blue tiles must be added to the bag to make the probability of randomly drawing a
Galina-37 [17]

Answer:

If the number of blue tiles in the bag is 180, then the probability of randomly drawing a red tile equal to 1/10.

Step-by-step explanation:

Total number of red tiles in a bag = 20

Let us assume the number of blue tiles in a bag = p

So, the total number of tiles in a bag  = Red Tiles + Blue tiles  

=  20 +  p

Now, let us find the probability of drawing a red tile:

\textrm{The probability of drawing a red tile} = \frac{\textrm{Total Number of red tiles}}{\textrm{Total Tiles}}\\= \frac{20}{20 + p}

But, here the probability of drawing a red tile = 1/10

\implies \frac{1}{10}  = \frac{20}{20+p} \\\implies 20 + p = 200\\\implies p = 200- 20 =  180

or, p = 180

Hence, if the number of blue tiles in the bag = 180, then the P Picking out a red tile ) is 1/10.

5 0
3 years ago
What best describes the expression 6 over y?
Simora [160]
6 divided by some number.
4 0
3 years ago
Is h=11 a solution of the equation 1=h/11
NikAS [45]

Answer:

Yes

Step-by-step explanation:

1/1=1

So 11/11 =1

By substituting 11 for h you get it fits

3 0
3 years ago
How does the product 110 x n compare to the product 11 x n?
Basile [38]
110 = 11 * 10

So 110*n is  ten times bigger than 11 * n.
3 0
3 years ago
Work out the area of triangle ABC.
AleksAgata [21]

Answer:

A = 4 cm²

Step-by-step explanation:

The area of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

b = AC = 3\sqrt{2} + \sqrt{2} = 4\sqrt{2}

h = BD

Calculate BD using Pythagoras' identity in Δ ABD

BD² = AB² - AD²

      = (2\sqrt{5} )² - (3\sqrt{2} )²

     = 20 - 18 = 2 ( take square root of both sides )

BD = \sqrt{2}

Then

A = \frac{1}{2} × 4\sqrt{2} × \sqrt{2} = 2 × \sqrt{2} × \sqrt{2} = 4 cm²

8 0
2 years ago
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