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solmaris [256]
3 years ago
15

What is the value of y in the triangle?

Mathematics
1 answer:
hoa [83]3 years ago
5 0
Did you ever get the answer?

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Solve this equation with substitution method :-<br> x+5 = 3 (y+5)<br> x-5 = 7 (y-5)
Damm [24]
From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
5 0
3 years ago
Of the 1000 students in a local college ,
dimaraw [331]
Can you please explain? Or maybe continue your question please?
5 0
2 years ago
Equation- s=db-6, solve for d
Liono4ka [1.6K]

Answer:

d \:  =  \frac{s + 6}{b}

Step-by-step explanation:

s = db - 6

Isolate d

s + 6 = db

.

Divide both sides of the equation by b

\frac{s + 6}{b}  =  \frac{db}{b}

Simplify

\frac{s + 6}{b}  = d \\ d =  \frac{s + 6}{b}

4 0
3 years ago
Read 2 more answers
Find all solutions to the equation.<br><br> cos2x + 2 cos x + 1 = 0
yanalaym [24]
For cos(2x) * (2cos(x) + 1) = 0, use the double angle identity for cos(2x), which is cos^2 x - sin^2 x = cos^2 x - (1-cos^2) = 2cos^2 x - 1.
So we have (2cos^2 x - 1)(2cos x + 1) = 0. So 2cos^2 x -1 = 0 or x = 0 and 2pi.
For 2sec^2 x + tan^2 x - 3 = 0, use the identity sec^2 x = tan^2 x + 1, so we have
2(tan^2 x + 1) + tan^2 x - 3 = 0 or
<span>2tan^2 x + tan^2 x - 1 = 0 or
</span>3 tan^2 x = 1.

So x = pi/2, pi/2 + pi = 3pi/2.

5 0
3 years ago
A+b+c=4<br> a²+b²+c²=10<br> a³+b³+c³=22<br> a4+b4+c²=?
iragen [17]

Answer:

34

Step-by-step explanation:

6 0
3 years ago
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