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saveliy_v [14]
3 years ago
11

From 5x2 - 6x + 8, subtract 3x2 - 2x - 4.

Mathematics
1 answer:
Sophie [7]3 years ago
7 0

Answer:

D. 2x² - 4x + 12

Step-by-step explanation:

5x² - 6x + 8

-3x² - 2x - 4

-__________

2x² - 4x + 12

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Question 4
lawyer [7]

Answer:

18ft

Step-by-step explanation:

L = length

W = width

l = w + 2ft ; because the is 2 ft longer than width

The area of a rectangle is lw

You can take the first equation ( l = w + 2 ) and plug it in lw

like this: lw ---> (w+2)w = w^2+2w

then from the question you get: w^2+2w=19.25

you use the quadratic formula and get w = 3.5

then from the first equation, you get l = 3.5+ 2 so the length is 5.5

lastly, you use the perimeter formula: 2(l+w) so 2(9) = 18

so 18ft

3 0
3 years ago
30 – 2x = 2(3x + 3) using PEMDAS
soldi70 [24.7K]

Answer:

Hey there! First you start with parenthesis! So distribute the 2 to 3x. There you get 6x. Now distribute to the 3. You get 6. Now you move the 2x over to the right side. Getting 30=4x+6.. Now move the 6 over to the 30. You get 24=4x..Now you divide, getting the answer 6! Hope this helps...

Answer is 6

8 0
3 years ago
Read 2 more answers
Helpppppppppppppp helpppppppppppppp​
jarptica [38.1K]

Answer:

A.

1. 6/9

2. 6/3

3. 3/6

4. 9/6

5. 3/9

B.

1. 8/12

2. 3/7

3. 5/3

4. 12/15

5. 20/25

Step-by-step explanation:

You can turn a ratio from #:# into #/# so if the ratio was 3:9 the fraction form would be 3/9.

4 0
2 years ago
The box plots show the target heart rates of men 20-40 years old and men 50-70 years old.
Harman [31]

Answer: D

Step-by-step explanation:

The range for the thing is greater

6 0
3 years ago
For this problem what I did was that I multiplied 100 x 34 = 3,400 and subtracted that answer with 5,086. The answer I got was 1
inessss [21]

Answer:

The answer rounded to the nearest whole number is 1729

Step-by-step explanation:

Set it up like this:  Percent in fraction form = x over total

So:  34/100  = x/5086

You then multiply:   34 x 5086 = 172924

Then divided that number by 100:   172924 divided by 100 = 1729.24

Then round the number to the nearest whole number:   1729

Hope this helps good luck!

3 0
2 years ago
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