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3 years ago

Not sure how to solve this

Mathematics

1 answer:

kvasek [131]3 years ago

7 0

Your answer would be B) 337.5 because there is 4 halfs in 2 which means you would multiply 75 by 4 which is 300 and the you have 1/4 which is half of 1/2 so you devide 75 by 2 which is 37.5 and then add that to the 300 which gives you 337.5

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What property is demonstrated with this equation? 2/3(1)=1(2/3)=2/3

balu736 [363]

Distributive property

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3 years ago

In Mr.Kleins class, 40% of the students are boys. What decimal represents the portion of the students that are girls?

Sidana [21]

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4 0

3 years ago

Find a quadratic polynomial the sum and product of whose zeroes are -8 and 12 respectively. Hence find the zeroes.

Olenka [21]

Step-by-step explanation:

We khow the sum and the product of the zeroes of this quadratic polynomial

Here is a trick :

when we khow the sum S and the product P ofvtwo numbers we can find them by solving :

x²-Sx+p=0

here S= -8 and P=12

so:

x²+8x+12=0

Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12

Δ= 8²-4*12 =16

the zeros are:

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verify:

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7 0

3 years ago

find the area of the shape below

Norma-Jean [14]

Answer:

235 cm²

Step-by-step explanation:

Find area of the large rectangle on the bottom. To do that, find its length and width, then multiply them together.

Length of big rectangle=20 cm

Width of big rectangle=9 cm

20x9=180 cm²

Next, find the area of the small rectangle on the top. To do that, find its length and width, then multiply them together.

Length of small rectangle=11 cm

Width of small rectangle=5 cm

I found the width by subtracting 9 from 14, since the 9 cm is part of the large rectangle.

11x5=55 cm²

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3 years ago

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elena55 [62]

Answer:

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Hope this helped!

4 0

3 years ago