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PIT_PIT [208]
3 years ago
12

(20 points & brainliest)

Mathematics
2 answers:
WINSTONCH [101]3 years ago
8 0

Answer:

Perimeter: 42cm

Area: 66cm^2

Step-by-step explanation:

denpristay [2]3 years ago
3 0

Answer:

P42 cm - P26 cm = 16 cm + 13 cm = P = 26 cm

Step-by-step explanation:

Those are two rectangles. One total and deduct the missing piece.

P=2(l+w)

First: Total 12 by 9 rectangles = P42 cm

Second: Lengths = 12 -5 = 7 and 9-3 = 6 = P=26

Thirs: add the missing lengts! 7 + 6 cm

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Find the values of x when y=1
kirill [66]

Answer:

x=1+\sqrt{5}, 1-\sqrt{5}

Step-by-step explanation:

  1. x^{2} -2x-4=0
  2. (x-1)^{2} -1-4=0
  3. (x-1)^{2} -5=0
  4. (x-1)^{2} =5
  5. x-1=\sqrt{5} ,-\sqrt{5}
  6. x=1+\sqrt{5} , 1-\sqrt{5}

<u>FINAL ANSWER</u>

x=1+\sqrt{5} , 1-\sqrt{5}

<u><em>In Decimal Form (Rounded to 3 significant figures)</em></u>

<em>x≈-1.24, 3.24</em>

6 0
4 years ago
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amid [387]

Answer:

I believe that the first answer is A and the second answer is c I'm not that smart but I have hope that it's correct

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3 years ago
PLEASE HELP ME !!!!!!!!!!!!!!!!
natima [27]
So in slope intercept form or y=mx+b or in your case c=mx+b where b=15, x=number of movies and b=2 dollars per cd then C=2x+15 so the C intercept is when x=0 so set x to 0 and get 2(0)+15=C 0+15=C C=15 Cintercept=15 slope=m so slope=2 C intercetp=15 so if borrow certain number of movies just plug in the values for x so 1 2(1)+15=2+15=17 2 2(2)+15=4+15=19 and so on
8 0
3 years ago
PLEASE HELP WITH MATH QUESTION!! EXPLANATION NEEDED TOO!
Dovator [93]

Answer:

Matt should have factored out the leading coefficient 2 on the second step before completing the square

Step-by-step explanation:

To complete the square, you must first factor the leading coefficient from the first two terms.

y = 2x² − 10x − 4

y = 2 (x² − 5x) − 4

y = 2 (x² − 5x + 25/4 − 25/4) − 4

y = 2 (x² − 5x + 25/4) − 25/2 − 4

y = 2 (x − 5/2)² − 33/4

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3 years ago
Plz help ASAP, thanks​
astraxan [27]

Answer:

12

Step-by-step explanation:

8·15·h=1440

120·h=1440

\frac{120h}{120}=\frac{1440}{120} (Divide both sides by 120)

h=12

<em><u>h stands for height</u></em>

6 0
3 years ago
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