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PSYCHO15rus [73]
3 years ago
12

which algebraic expression has a term with a coefficient of three A: -2y+5+3 B: 3(y-6) C: 3y+1 D: 5y-7

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
7 0
B

A coefficient is a number multiplied by a variable
Ex: 14x 14x 14x 14 is the coefficient
maxonik [38]3 years ago
4 0

Answer:

b

Step-by-step explanation:

at the left hand side the coefficient is 3

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The first truck in a convoy will carry 12 tons of dirt while each additional truck will carry 8 tons of dirt. Write a rule to mo
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12 + 8n = t
 
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Solve the system of equations. 4x + 2y = –14 6x + 3y = –22 (0, –7), (–1, –6), no solutions, infinitely many solutions. Plz and T
Marizza181 [45]

Answer:

no solutions

Step-by-step explanation:

4x + 2y = –14

6x + 3y = –22

Divide the first equation by 2 and the second equation by 3

4x/2 + 2y/2 = –14/2     2x +y = -7

6x/3 + 3y/3 = –22/3    2x + y = -22/3

The left hand sides are the same but the right hand sides are different.

Multiply the second equation by -1

2x+y = -7

-2x -y = 22/3

-------------------

0 = -7+22/3

0 = 1/3

This is never true, so there are no solutions

6 0
3 years ago
Read 2 more answers
How many degrees are inside of a convex hexagon? Remember to use (n-2)180.
Pavlova-9 [17]
Answer:720
Very good at doing degrees in math!
5 0
2 years ago
The equation d=13/v shows that the density of a particular substance equals a mass of 13 grams divided by the volume of the subs
stich3 [128]
D = M/V where M=mass and V = volume

Assume the Mass is 1 kg and the Volume = 1 cm³, so d= 1/1 kg/cm³

for V=0.1 → d = 1/0.1 = 10 kg.cm³
for V = 0.01 → d = 100.kg.cm³
for V = 0.001 → d = 1000.kg.cm³
for V = 0.000001 → d = 1,000,000.kg.cm³
and when Volume → 0. density →∞
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3 0
3 years ago
I have to find the circumference of 15 cm​
Pie

Answer:

r = 2.39 and C=2πr=2·π·2.39≈14.99997

Step-by-step explanation:

Using the formula

C=2πr

Solving for r=C 2π=15

2·π≈2.38732

and then u round up the 7 told the 8 to go up.

2.39

7 0
3 years ago
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