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xz_007 [3.2K]
3 years ago
6

7x + 8 + 3x2 - 5x + 9 Can someone show me how I would solve this equation? (Step by step please)

Mathematics
2 answers:
raketka [301]3 years ago
6 0

Answer:

3 x^2 + 2 x + 17

Step-by-step explanation:

hjlf3 years ago
6 0

Answer:

2x+23

Step-by-step explanation:

1

 

Simplify  3\times 23×2  to  66.

7x+8+6-5x+97x+8+6−5x+9

2

 

Collect like terms.

(7x-5x)+(8+6+9)(7x−5x)+(8+6+9)

3

 

Simplify.

2x+23

Done

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How do exoponets work? <br> Like 7 with a 2 on the top
inessss [21]

Answer:

7^2 =49

Step-by-step explanation:

Exponents represent a number and how many times you multiply it by itself. So 5^2 is 5*5 or 4^3 is 4*4*4. So 7^2 is 7*7, which is 49!

3 0
3 years ago
You are given this equation: 2(6x + 6)= 3(x – 4) + 5. What is the first step in solving for x? Why?
NARA [144]

Answer:

The first first in solving for x is do the distributive property to the left and right of the eqaution.  Distribute 2 with 6x and 6.  Distribute 3 with x and -4.

Step-by-step explanation:

PEMDAS states that you do things in the parenthesis first.

3 0
2 years ago
John is a quarterback. This year, he completed 350 passes, which is 70% of all the passes he's attempted this
diamong [38]

Answer:

455 passes

Step-by-step explanation:

If 350 is only 70% of his passes, take the remaining percentage which is 30% and multiply it to the known value of completed passes which is 350. So 350x.30= 105. Then just add 105 to 350 and you get the total number of passes. Hope this helped!

5 0
3 years ago
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Natali5045456 [20]
I am not sure but I think it’s b
7 0
2 years ago
Can I get help with this please
drek231 [11]

Answer:

3)  1 5/6 mi

4)  a. 4 cm, 6 ft

    b. 6.4 cm, 9.6 ft

    c. same as part a

Step-by-step explanation:

3) Each of the given distances appears twice in the sum of side measures that is the perimeter. Hence by walking the perimeter twice, Kyle walks each of the given distances 4 times. His total walk is ...

  4×1/3 + 4×1/8 = 4/3 + 4/8

  = 1 1/3 + 1/2 = 1 2/6 + 3/6

  = 1 5/6 . . . . . miles

___

4) Since the figure is rectilinear (all angles are right angles, and all sides are straight lines), the sum of partial dimensions in one direction is equal to the whole dimension in that direction.

a. 8 cm = 4 cm + x

  8 cm - 4 cm = x = 4 cm

The distance in the room is ...

  (4 cm)×(1.5 ft/cm) = 6 ft

b. 10.3 cm = 3.9 cm + y

  10.3 cm - 3.9 cm = y = 6.4 cm

The distance in the room is ...

  (6.4 cm)×(1.5 ft/cm) = 9.6 ft

c. The answer to part b was obtained in the same way as the answer to part a.  The unknown dimension is the difference of given dimensions. The actual length in the room is the model length multiplied by the inverse of the scale factor.

3 0
3 years ago
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