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Gnoma [55]
3 years ago
15

Help pls!! Find the area

Mathematics
1 answer:
Dima020 [189]3 years ago
8 0

Answer:

17.5 for perpendicular triangle

Step-by-step explanation:

A= 1/2 ( b*h )

A= 1/2 ( 7*5)

A= 1/2 ( 35)

A= 17.5

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A rectangle is three centimeters.longer than it is wide. if its length were to be decreased by two centimeters, its area would d
Scorpion4ik [409]
Given/equations formed from text:
I: l=w+3
II: A=l*w
III: new area B=(l-2)*w
IV: B=A-30

substitute l in II with I to remove l:
II': A=l*w=
(w+3)*w=
w^2+3w

substitute l in III with I to remove l:
III': B=(l-2)*w=
(w+3-2)*w=
(w+1)*w=
w^2+w

substitute A and B from II' and III' into IV:
B=A-30
w^2+w=w^2+3w-30
30=2w
w=15

insert w=15 into I:
l=15+3=18
->
A) dimensions of full size rectangle are width 15 and length 18
dimensions of reduced size rectangle are width 15 and length 16

B) full size: 15*18=10*18+5*18=180+90=270cm^2
reduced size: 15*16=10*16+5*16=160+80=240cm^2


7 0
4 years ago
1) Consider the sequence:
Ivan

Answer:

1) The 38th term is A. 38

2) The 11th term is D. 3072

3) The 3rd term is C. 34

Step-by-step explanation:

1) I added 2 until I got to the 38th term.

2) I multiplied until I got to the 11th term.

3) I added 3 until i got to the 12th term.

The teacher showed a more complex way to do it but this is just what I did.

I took the quiz, so I know that I got them all correct.

5 0
3 years ago
Read 2 more answers
Explain your answer ! <br><br> ( WILL GIVE BRAINLST)
Morgarella [4.7K]
Last one bc it jus is the last one so put in the last one bc the last one is the right one
6 0
3 years ago
Read 2 more answers
Which of the following is a Composite Number?
adoni [48]
61 is the composite Number your welcome
5 0
4 years ago
Read 2 more answers
Monique is factoring the expression 4 x + 16 x y. Her work is shown below.
pickupchik [31]

Answer:

Step-by-step explanation:

4x + 16xy

GCF is 4x

4x(1 + 4y) <===== this is the correct one

4 0
4 years ago
Read 2 more answers
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