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SpyIntel [72]
3 years ago
11

What is the result of isolating Y squared in the equation below 4X squared +25Y squared -100

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0
Minus 4x^2 both sides
25y^2=100-4x^2
divide both sides by 25
y^2=4-4x^2/25
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Darya [45]

Answer:

3rd option

y=1/2 x-3

7 0
2 years ago
What is m∠DHG? Enter your answer in the box.
LenaWriter [7]

the 2 equations given are vertical angles which mean they would equal the same.

Set the two equations to equal each other to solve for x:

6(x-2) = 3x+30

Simplify the left side:

6x-12 = 3x+30

Add 12 to eac side:

6x = 3x+42

Subtract 3x from each side"

3x = 42

Divide both sides by 3:

X = 42/3

X = 14


Now you know X, replace x with 14 in the equation for DHG:

DHG = 6(x-2)

6(14-2)

Simplify:

6(12)

Multiply:

72

Angle DHG is 72 degrees.

6 0
3 years ago
Read 2 more answers
The sum of two numbers is 59 and the difference is 15 . what are the numbers?
UkoKoshka [18]
Write a system of equation based on the number
For an instance, the two numbers are a and b.
"The sum of two numbers is 59" can be written as follows.
⇒ a + b = 59  <em>(first equation)
</em>"The difference is 15" can be written as follows.
⇒ a - b = 15  <em>(second equation)</em>

Solve the system of equation by elimination/substitution method.
First, eliminate b to find the value of a.
a + b = 59
a -  b = 15
--------------- + (add)
2a     = 74
  a     = 74/2
  a     = 37

Second, substitute 37 as a in one of the equations
a + b = 59
37 + b = 59
b = 59 - 37
b = 22

The numbers are 37 and 22
5 0
3 years ago
Melanie is 2 years older than twice her brother Bill’s age. If Bill is 5 years old,how old is Melanie
arlik [135]

she would be 12 because

10 * 2 = 10

10 + 2 = 12

hope this helps :)

8 0
3 years ago
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Flura [38]
The first one- the rest don’t add up
8 0
2 years ago
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