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umka21 [38]
3 years ago
7

What is the value of X in the triangle shown?

Mathematics
1 answer:
Marina86 [1]3 years ago
3 0

Answer:

Step-by-step explanation:

take 45 degree as reference angle

using sin rule

sin 45=opposite/hypotenuse

1\sqrt{2}=x/16

x=16/\sqrt{2}

x=8\sqrt{2}

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Combine like terms - 7 -3(4-2x)-10x
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Answer:

The simplified form would ve -19 - 4x

Step-by-step explanation:

Before we combine anything, we first must expand the expression by distributing the -3 to the terms in the parenthesis.

-7 - 3(4 - 2x) - 10x

-7 - 12 + 6x - 10x

Now we can combine the terms with and without variables.

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8 0
3 years ago
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Step-by-step explanation:

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3 years ago
"Find the sum of the first 50 term in this sequence 4, 7, 10, 13, ...". How do i do this without writing them all out, and how d
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sum of first 50terms= (50/2)[2×4+(50-1)(-3)]
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derivation of the formula for the sum of n terms
Progression, S
S=a1+a2+a3+a4+...+an

S=a1+(a1+d)+(a1+2d)+(a1+3d)+...+[a1+(n−1)d]   →   Equation (1)

S=an+an−1+an−2+an−3+...+a1

S=an+(an−d)+(an−2d)+(an−3d)+...+[an−(n−1)d]   →   Equation (2)

Add Equations (1) and (2)
2S=(a1+an)+(a1+an)+(a1+an)+(a1+an)+...+(a1+an)

2S=n(a1+an)
S=n/2(a1+an)

Substitute an = a1 + (n - 1)d to the above equation, we have
S=n/2{a1+[a1+(n−1)d]}
S=n/2[2a1+(n−1)d]
5 0
3 years ago
360 kilometers is 24% of how many kilometers
Savatey [412]
Here
360 = 24%
360=24/100
360*100=24
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6 0
3 years ago
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What is the answer for <br> 15 + b =23
riadik2000 [5.3K]
15 plus 8 equals 23.
4 0
2 years ago
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