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jek_recluse [69]
3 years ago
5

PLS HELP ME ASAP FOR 4, 5, and 6 (SHOW WORK!) + LOTS OF POINTS!

Mathematics
2 answers:
Wewaii [24]3 years ago
7 0
4. D does NOT form a proportion
5. To get the answer you would multiply 45*8=360 then 360/18=20 so n=20

6. same as number 2
multiply 1.2*.6= .72 then .72/1.6= .45 so w=.45
Ira Lisetskai [31]3 years ago
7 0
4. (a) 8/14 = 4/7
         20/35 = 4/7
    (b) 6/10 = 3/5
         15/25 = 3/5
    (c) 9/4
         36/16 = 9/4
    (d) 12/15 = 4/5
          30/40 = 3/4
The answer is D.

5. 8/18 = n/45
   18 x n = 45 x 8
   18 x n = 360
    n = 360/18
       = 20
The answer is C.

6. 0.6/1.6 = w/1.2
    0.6 x 1.2 = w x 1.6
    0.72 = w x 1.6
    0.72/1.6 = w
    w = 0.45
The answer is A.
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Mars2501 [29]
Two point form:
y-(-7)/3-(-7)=x-6/-6-6
Rearrange to get y=-5/6x -2 (slope intercept form)
or y= 5x+6y=-12 (standard form)
8 0
3 years ago
I need answers I’ll cash app 10 dollars
posledela

1. 0 > 3x - 3 - 6

0 > 3x -9

9 > 3x

3 > x

It would be a closed circle starting from 3 going to the right.

2. 4x + 1 - 1 >/ -8

4x >/ -8

x >/ -2

It would be an open circle starting from -2 going to the right.

3. -1 </ 2n + 4 - 5

-1 </ 2n -1

0 </ 2n

Undefined.

4. -6 > 5n + 5 + 4

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4 0
3 years ago
Whats the extreme value?y=3(x+5)^(2)-4
natta225 [31]

Answer:

-4

Step-by-step explanation:

  • y = 3(x+5)²-4
  • y= 3(x²+10x+25)-4
  • y= 3x²+30x+75-4
  • y= 3x²+30x+71

Derivate the function

  • y' = 6x+30

solve the equation y'= 0

  • y'= 6x+30
  • 6x+30= 0
  • 6x= -30
  • x = -5

The extrme value of y is reached in -5

y = 3(-5+5)²-4= -4

6 0
3 years ago
Find the area of the circle round your answer to the nearest 10th
zhannawk [14.2K]

Answer:

The area is 19.63.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How do I solve this problem? Please help
Westkost [7]
9n + 6 = 456
9n = 456 - 6
9n = 450
n = 450/9
n = 50

I believe this is the answer, though i'm not sure.
8 0
3 years ago
Read 2 more answers
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