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maxonik [38]
3 years ago
11

Factor the expression 27-9x+15y

Mathematics
1 answer:
Debora [2.8K]3 years ago
5 0
-3(3x-5y-9) that’s the factored expression
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What is the graph of Y
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It's D)

you can subsitute any number you want for x and it'd still be a soloution to y=
8 0
3 years ago
Order pair of x=y+2 and 2y=x-1
EastWind [94]
<span>x=y+2
2y=x-1
substitute </span>x=y+2  into 2y=x-1

2y=x-1
2y=y+2 -1
2y - y = 1
y = 1

<span>x=y+2
</span><span>x=1+2
x=3

answer
x = 3 and y = 1</span>
5 0
3 years ago
Find the lengths of the sides of the triangle PQR. P(4, 3, 4), Q(2, 1, 3), R(2, 7, 0) a. |PQ| = b. |QR| = c. |RP| =
Nat2105 [25]

Given :

Three points ,  P(4, 3, 4), Q(2, 1, 3), R(2, 7, 0) .

To Find :

The length of sides .

Given :

We know , length of two points P(x,y ,z) and Q(a,b,c) is given by :

L=\sqrt{(x-a)^2+(y-b)^2+(z-c)^2}

Length of PQ :

PQ=\sqrt{(4-2)^2+(3-1)^2+(4-3)^2}\\\\PQ=\sqrt{4+4+1}=\sqrt{9}\\\\PQ=3

Length of QR :

QR=\sqrt{(2-2)^2+(1-7)^2+(3-0)^2}\\\\QR=\sqrt{0+6^2+3^2}\\\\QR=\sqrt{36+9}\\\\QR=\sqrt{45}\\\\QR=3\sqrt{5} :

Length of RP :

RP=\sqrt{(2-4)^2+(7-3)^2+(0-4)^2}\\\\RP=\sqrt{2^2+4^2+4^2}\\\\RP=\sqrt{4+16+16}\\\\RP=\sqrt{36}\\\\RP=6

Hence , this is the required solution .

4 0
3 years ago
What is mode and rang
abruzzese [7]

Answer:

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Step-by-step explanation:

give that other guy a brainliest

3 0
3 years ago
last month Dory biked 11 times as many miles as Carly. Together they biked a total of 156 miles.How many miles did Dory bike las
matrenka [14]
Dory = 11 x Carly

Together => d + c = 156

11c + c = 156

12c = 156
C = 156 : 12
C = 13
Carly biked 13 miles

Dory = 11 x c = 11 x 13 = 143 miles

Prove
143 + 13 = 156 miles together
8 0
4 years ago
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