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Allisa [31]
2 years ago
14

One-fifth of the sum of 7 and b minus the product of 4 and m​

Mathematics
1 answer:
deff fn [24]2 years ago
4 0

Answer:

7/5 + b/5 - 4m

Step-by-step explanation:

(1/5)(7 + b) - (4)(m) = 7/5 + b/5 - 4m

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Show how to use substitution or elimination to solve the following system of equations. Write the solution as an ordered pair.
Liono4ka [1.6K]

Answer:

idlk

Step-by-step explanation:

6 0
3 years ago
Determine whether 2, 5, 9, 14, . . . is an arithmetic sequence
guapka [62]

Answer:

no because they do not go up by the same number  plz mark brainiest

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Factor the trinomial. You many need to check the discriminant to make sure it can be factored. SHOW YOUR WORK.
lbvjy [14]
Check the discriminant (always a good idea).

b^2 - 4ac 
b = -19
c = -15
a = 10

(-19)^2 - 4(10)(-15)
361 + 600
961

Yes it can be factored, but if you like, you could use the quadratic formula.
x = [- (-19) +/- sqrt(961)]/(2 * 10)
x = [19 +/- 31 ] / 20
x = (19 + 31/20
x = (50)/20
x = 5/2

x = [19 - 31] / 20
x = [- 12]/20
x = -3/5

Getting the factors is a little tricky.
(x - 5/2)(x + 3/5) = 0
The first factor is found by putting 
x - 5/2 in that form and multiplying through by 2
1/2 (2x - 5) The 1/2 comes from multiplying by 2. 

The second factor is
1/5 (5x + 3)

So the equation will look like 
1/2(2x - 5)1/5(5x + 3) = 0 If you multiply by 2 you get
(2x - 5)1/5(5x + 3) = 0 and now multiply by 5 you get
(2x - 5) (5x + 3) 

Check
2x*5x - 25x + 6x - 15
10x^2 - 19x - 15 = 0

So everything works out. 
6 0
3 years ago
An angle measures 156° less than the measure of its supplementary angle. What is the measure of each angle?
GrogVix [38]

Answer:

12° and 168°

Step-by-step explanation:

If x is the angle, and y is the supplementary angle, then:

x + y = 180

x = y − 156

Solve the system of equations using substitution:

y − 156 + y = 180

2y = 336

y = 168

Plug back into either equation to find x:

x = 12

7 0
3 years ago
Read 2 more answers
Helpppppppppppppppppppppppppppppppp
nirvana33 [79]

Answer:

= 15.6 \times 18 \\  = 280.8 \:  {in}^{2}  \\  =  >  \: six \: sides \\  = 280.8 \times 6 \\  = 1684.8 \:  {in}^{2}

8 0
2 years ago
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