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vladimir2022 [97]
3 years ago
7

Attached a phot please help!

Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer:

  • -5, -18
  • -5x -18x
  • (x -3)(6x -5)

Step-by-step explanation:

a) The factors of 90 are ...

  90 = (-1)(-90) = (-2)(-45) = (-3)(-30) = (-5)(-18) = (-6)(-15) = (-9)(-10)

The sums of these factors are -91, -47, -33, -23, -21, -19.

The factor pair with the sum of -23 is of interest here. Those factors are ...

  -5, -18

__

b) -23x = -5x -18x

__

c) The rewritten expression is ...

  6x^2 -5x -18x +15

  (6x^2 -5x) -(18x -15) . . . . group into pairs

  x(6x -5) -3(6x -5) . . . . . . .factor each pair

  (x -3)(6x -5) . . . . . . . . . . factor out the common factor (6x -5)

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15
Butoxors [25]

Step-by-step explanation:

1/2 represents every fraction, where the denominator (bottom part) is twice the numerator (top part).

like 4/8 or 6/12 or 128/256 or ...

what do we need in the denominator to calculate with 15/16 ?

the same : 16.

and what is half of 16 ? 8.

so, we need the 1/2 based on 16th = 8/16.

so, the dog ate 8/16 (1/2) of the original 15/16.

what was left was

15/16 - 8/16 = 7/16 pound

7 0
2 years ago
19. Ms. Porter had eight parties at her house last year. The number of guests at each party
KatRina [158]

Answer:

17

Step-by-step explanation:

Order the numbers from Smallest to Largest...

9, 10, 14, 15, 19, 21, 21, 27

Then the middle number is your answer.

Since there are 2 Middle Numbers, you add them together, and divide by 2.

Which would be, 17.

6 0
2 years ago
Read 2 more answers
3(x+5)=-4x+8. How many solutions
nirvana33 [79]

Step-by-step explanation:

3(x + 5) = 4x + 8 \\ 3x + 15 = 4x + 8 \\ 15 - 8 = 4x - 3x \\ x = 7

6 0
3 years ago
Which polynomial represents the sum below? (4x5 + 6x3 + 3) + (3x3 + x + 9)​
umka21 [38]

Answer:

i think

 4x^5+9x^3+x+12

Step-by-step explanation:

7 0
2 years ago
The question reads. Nayeon went on a hike with his aunt, sister and dad. they all started at the same spot but Nayeon and her au
Mashcka [7]
Nayeon and her aunt hiked 154 meters before they had lunch and after they had lunch, they hiked 84 more meters. all together they hiked 238 meters. The dad and sister hiked 167 meters before they had lunch and after they had lunch, they hiked 62 more meters. all together they hiked 329 meters. The difference in meters between Nayeon and her aunt and her dad and her sister (before lunch) is 13 meters. 
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3 years ago
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