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N76 [4]
3 years ago
7

Expand and simplify 3(x+2)+2(x-1)

Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0
3(x + 2) + 2(x - 1)
3(x) + 3(2) + 2(x) - 2(1)
3x + 6 + 2x - 2
3x + 2x + 6 - 2
5x + 4
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Which relationship is always true for the angles RXY and Z or the triangle ABC
aksik [14]

Answer:

the answer is

x + y + z = 180 degrees

proof

the sum of all angles in the triangles is always equal to 180 degrees

Step-by-step explanation:

8 0
3 years ago
A race track is made up of a rectangle shape 750 m by 500 m semi circles at each end. Marisol drives the track once at average s
Mkey [24]

Answer:

d=3071m

Step-by-step explanation:

From the question we are told that:

Dimension Of rectangle

Length l=750m

Breath b=500m

Velocity v=140kmh

Generally the equation for distance travel by Marsol once round the Circle is is mathematically given by

 d=2(l)+2(arc\ of\ the\ semi\ circle)

 d=2(l)+2( 2\pi r (\frac{\theta}{360}))

Where

 r=\frac{b}{2}

 r=\frac{500}{2}=>250

And

 \theta=180

Therefore

 d=2(750)+2( 2\pi 250 (\frac{180}{360}))

 d=3071m

5 0
3 years ago
Solve for x.<br><br> −5x−4(x−6)=−3<br><br> Enter your answer in the box.<br> x =
Phoenix [80]
Opening up the bracket
-5x-4x+24= -3
-9x= -3 - 24
-9x = -27
divide both sides by -9
x= 3
7 0
3 years ago
If she has 184 pages left to read,how many total pages are olives book
Kryger [21]

Answer:T=263

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the reciprocal of −3 2/7? <br><br>a.−3 7/2 <br><br>b.−2 3/7 <br><br>c.−7 2/3 <br><br>d.3 2/7
AleksandrR [38]
D.
No explanation needed
4 0
3 years ago
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