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3 years ago

Determine the value of x and y

Mathematics

2 answers:

Misha Larkins [42]3 years ago

6 0

Here,
x+2x+x=180( sum of angles of a triangle is 180)
4x=180
x=180/4
x=45
x+y=180(linear pair)
45+y=180
y=180-45
y=135
Therefore the value of y=135 and value of x=45

HOPE THIS HELPS

Elodia [21]3 years ago

3 0

Answer: 75

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

5000 jumps for 7 hours how many jump per hour?

Eva8 [605]

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3 years ago

Read 2 more answers

What is 25/100 and 350/1000 simplified?

sergey [27]

25/100 = 1/4 (divide both numerator and denominator by 25)

350/1000 = 35/100 = 7/20.

4 0

3 years ago

Solve for x. x3 =−125

mafiozo [28]

Answer:

x = -5 or x = 5 (-1)^(1/3) or x = -5 (-1)^(2/3)

Step-by-step explanation:

Solve for x:

x^3 = -125

Taking cube roots gives 5 (-1)^(1/3) times the third roots of unity:

Answer: x = -5 or x = 5 (-1)^(1/3) or x = -5 (-1)^(2/3)

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3 years ago

How can i solve by completing the square 4r^2-28r=-49

Natalija [7]

To complete the square, the second degree term must have a coefficient of 1.
Since the second degree term here has a coefficient of 4, we start by dividing each term on both sides by 4.

$4r^2 - 28r = -49$

$\dfrac{4r^2}{4} - \dfrac{28}{4}r = -\dfrac{49}{4}$

$r^2 - 7r = -\dfrac{49}{4}$

Now we can complete the square.
First, we need to find what number completes the square.
We take the coefficient of the first degree term, -7 in this case.
Divide it by 2 and square it. -7 divided by 2 is the fraction -7/2.
Now we square -7/2 to get 49/4.
We add 49/4 to both sides.

$r^2 - 7r + \dfrac{49}{4} = -\dfrac{49}{4} + \dfrac{49}{4}$

$(r - \dfrac{7}{2})^2 = 0$

$r - \dfrac{7}{2} = 0$

$r = \dfrac{7}{2}$

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4 years ago