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storchak [24]
3 years ago
14

How do I do this and what is the answer

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0
Answer: isosceles triangle

Explanation: The lines in the middle indicate all sides are the same making it an isosceles.
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a father is twice as old as his son. 20 yrs ago the father was four times as old as his son. find their present ages
Roman55 [17]

Answer:

son's present age = 30

father's present age=60

Step-by-step explanation:

his son's present age = x years

his father's present age = 2x years

before 20 years his son's age=(x-20) years

before 20 years father's age=(2x-20) years4(x-20)=(2x-20)

4x-80=2x-20

4x-2x=80-20

2x=60

x=30

5 0
2 years ago
I need help on this.
mote1985 [20]

Let's go:


7 = x

38 + x = 180

x = 180 - 38

x = 142°


7 = 142°


I hope I helped you



5 0
3 years ago
A number added to 3 is equal to negative 5, find the number​
anzhelika [568]

Answer:

-8

Step-by-step explanation:

An equation at represents this situation is:

-5 = 3 + x

Find x by;

-5 - 3 = -8

So x is -8:

-5 = 3 + -8 (TRUE)

Hope this helps

6 0
3 years ago
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An envelope measures 8 inches by 15 inches. A pencil is placed in
Oliga [24]
The length of the pencil would be 17. This could be easily found by using a^2 + b^2 = c^2. Please mark me brainliest it would be pretty cash money of you
3 0
2 years ago
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If two 6-sided dice are rolled what is the probability that both numbers will be even?
Tamiku [17]
The probability of one dice rolling an even number is 1/2 as half the numbers are even. Since the events are independent, and there are 2 dice, we need to square 1/2 to get 1/4, assuming they are both fair dice
3 0
1 year ago
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