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2 years ago

Help Please!!! And can you explain how you got the answer?

Mathematics

1 answer:

aksik [14]2 years ago

4 0

Answer:

x=25

y= 64.5

Step-by-step explanation:

When lines are parallel, 2x=2(the number)

But, 2 isn't an angle. However, 50degrees is congruent to 2 since they are verticle angles.

2x=50

x=25

When lines are parallel, 2y+1=1(the number)

But, 1 doesn't have a verticle angle. However, 180-50 would be equal to 1

180-50=2y+1

130=2y+1

129=2y

y= 64.5

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Place these events on the probability

Aleksandr [31]

Answer:

P(tails)=1/2
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3 years ago

Please solve the following quadratic equation and show your work: x^2 -x =30

saveliy_v [14]

Rewriting the equation as a quadratic equation equal to zero:
x^2 - x - 30 = 0
We need two numbers whose sum is -1 and whose product is -30. In this case, it would have to be 5 and -6. Therefore we can also write our equation in the factored form
(x + 5)(x - 6) = 0
Now we have a product of two expressions that is equal to zero, which means any x value that makes either (x + 5) or (x - 6) zero will make their product zero.
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3 years ago

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Andrews [41]

Answer:

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8 0

2 years ago

ABC is isosceles with AB=AC=8 units and BC=6 units. D and E are midpoints of AB and BC respectively. Calculate the length of DE?

Allushta [10]

The triangle is drawn and is shown in the image attached with.

We get two similar triangles. Triangle ABC and Triangle ADE. Since the triangles are similar the ratio of their corresponding sides will be the same.

D and E are the midpoints of AB and BC, therefore, AD and AE are both 4 units in length. Using the property of similar triangles, we can say:

AD : DE= AB : BC
AD = 4 units
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So,

$4 :x = 8 : 6 \\ \\ 
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3 years ago

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TEA [102]

Step-by-step explanation:

3vx

=3 * v * x

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=300v

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3 years ago