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Ivanshal [37]
2 years ago
13

What is the value of angle X and angle Y in the triangle diagram below?

Mathematics
1 answer:
andre [41]2 years ago
3 0

Sum of two interior angles=exterior angle

\\ \rm\Rrightarrow 45+65=y

\\ \rm\Rrightarrow y=110

  • Linear pairs have sum 180

\\ \rm\Rrightarrow x+y=180

\\ \rm\Rrightarrow x+110=180

\\ \rm\Rrightarrow x=70

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Select three ratios that are equivalent to 7:6
Otrada [13]

14:12

21:18

28:24

That should be the answer

6 0
3 years ago
Area of 16+8×+×^2meters. What is the side length
wolverine [178]

Answer:

  x +4

Step-by-step explanation:

The trinomial x² +8x +16 is a perfect square trinomial, so factors as ...

  x² +8x +16 = (x +4)²

Assuming the side length is one of the factors of the given area, it will be ...

  side length = (x +4)

5 0
3 years ago
How do you solve this equation?
Travka [436]
Exponentail thingies

easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0

now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero

5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1


5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4

x=log₅1 and/or log₅4







second quesiton

same thing

1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero

2^x-8=9
2^x=8
x=3

2^x-2=0
2^x=2
x=1

x=3 or 1







first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3


7 0
3 years ago
How can you tell if a linear equation is proportional?
Snezhnost [94]

Answer:

If the line goes through the origin, (0,0), that means the linear equation is proportional, if it doesn't go through the origin, the equation isn't proportional.

You can also tell if a linear equation is proportional if the equation has an constant after the x (for example y=2x+6)

5 0
3 years ago
If sinA= 3/4 find. (a) tanA (b):cosA. (c):sinA cosA+tanA/3+4cosA tanA​
Luba_88 [7]

here is your answer. Please like it rate it and mark me as brainly.

3 0
3 years ago
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