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algol [13]
2 years ago
14

Someone help me please?

Mathematics
2 answers:
AlekseyPX2 years ago
6 0
(r-3)^2 I think this is correct because r^2 means r*r and you are subtracting 9 so I just multiplyed 3*3.
yanalaym [24]2 years ago
4 0
Is a (r + 3) (r - 3)
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Does anyone have a answer to this?
jolli1 [7]
It would be 224 , the base is 64 and every triangle is 80 but if you follow the rule for area to a triangle you get 40
So 64+40+40+40+40= 224
4 0
2 years ago
Read 2 more answers
the ratio of strawberry to banana batter is 2:3. we need 30 cups of batter total. what percent of the cake batter is banana
Dovator [93]
You first do 3 + 2, which would equal 5. Then, you would just do 3/5. 
3 0
3 years ago
£70 is divided between Natasha, Richard & Stephen so that Natasha gets twice as much as Richard, and Richard gets three time
Mekhanik [1.2K]

Answer:

  £42

Step-by-step explanation:

The ratio of Richard's amount to Stephen's amount is ...

  R : S = 3 : 1

The ratio of Natasha's amount to Richard's amount is ...

  N : R = 2 : 1 = 6 : 3

Then the ratio of all three amounts is ...

  N : R : S = 6 : 3 : 1

The proportion of the total that Natasha gets is ...

  6/(6+3+1) = 6/10

so she gets ...

  (6/10)×£70 = £42

Natasha gets £42.

5 0
3 years ago
The floor of a rectangular room is 300 cm long and 180 cm wide. to carpet the floor? How many small tiles are needed​
Vinvika [58]

The number of small tiles are needed​ is 300 tiles.

<h3>Number of tiles needed</h3>

Using area of rectangular formula

Area of the room = length(l) × breadth (b)

Area of the room=300 cm×180 cm

Area of the room=54,000 cm²

Number of tiles needed = Area of rectangular region / Area of one tile

Number of tiles needed=54,000/180

Number of tiles needed=300 tiles

Therefore the number of small tiles are needed​ is 300 tiles.

Learn more about number of tiles needed here:brainly.com/question/2136390

#SPJ1

4 0
2 years ago
Find the area of quadrilateral KLMN​
WITCHER [35]

Step-by-step explanation:

I just answered this ...

the first thing we notice : the quadrilateral has 2 pairs of equally long sides with 2 angles being openly 90°.

so, we are dealing with a rectangle here.

we know that one pair of the sides (NK = LM) are 24 cm long.

and we know that KL:LM = 3:4.

that means that the pair KL = MN are the shorter sides of the rectangle. and their length is according to the ratio 3/4 of NK=LM.

3/4 × 24 = 18 cm

the area of that rectangle is therefore

18 × 24 = 432 cm²

6 0
2 years ago
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