2 years ago

Estimate the quotient of 9 1/3 divided by 2 3/4

Mathematics

2 answers:

son4ous [18]2 years ago

7 0

It's about 3 (3 13/33) to be exact

zzz [600]2 years ago

7 0

The estimate would be around 3

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Find the surface area of the hemisphere 6cm

lina2011 [118]

Answer:

452.4 cm^2

Step-by-step explanation:

$a = 4\pi {r}^{2} \\ a = 4 \pi \times (6)^{2} \\ a = 452.4 \: cm^{2}$

I hope that is useful for you :)

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2 years ago

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1 year ago

The width of a rectangle is the length minus 2 units. the area of the rectangle is 35 units

Mariana [72]

Answer:

$Length=7units\\\\Width=5units$

Step-by-step explanation:

Width=(Length-2) units

W=(L-2) units

Area of the rectangle= 35 square units

Area = length* Width

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Subtracting 35 both sides:

$L^2-2L-35=0$

Solving the quadratic equation for 'L' ;

Using factorization:

$L^2+5L-7L-35=0$

Taking common from the equation :

$L(L+5)-7(L+5)=0\\\\(L+5)(L-7)=0\\\\L+5=0\\\\L=-5$

$L-7=0\\\\L=7$

The length cannot be negative, therefore Length(L)= 7

$Width=Length-2\\\\=7-2\\\\=5 units$

$Length=7units\\\\Width=5units$

8 0

2 years ago

Determine if line AB and CD are congruent or not congruent given the coordinates A(0, 13), B(7, 11), C(12, 10), and D(10, 3). Ex

drek231 [11]

Answer:

Step-by-step explanation:

The lines arent equal

5 0

2 years ago

F(x) = -322 Find f(-2)

serg [7]

Answer:

f ( - 2 ) = - 12

Step-by-step explanation:

f ( - 2 ) = - 3 ( -2 )^2

then you do the exponent first so

- 3 ( 4 )

now you multpily the - 3 and 4

you get - 12

8 0

1 year ago