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Nikolay [14]
4 years ago
11

What does 5.74 round to

Mathematics
1 answer:
kodGreya [7K]4 years ago
4 0
The nearest whole number rounds to 6

The nearest tenth rounds to 5.70

The nearest hundredth rounds to 5.70
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The area of a rectangle is 45 cm2. Two squares are constructed such that two adjacent sides of the rectangle are each also the s
Zielflug [23.3K]

Answer:

The lengths of sides of squares are 5 cm and 9 cm.

Step-by-step explanation:

Let the sides of rectangle be x and y .

Area of rectangle = Length × Breadth

Given : Area of rectangle = 45 cm².

⇒ x × y  = 45  

⇒ x=\frac{45}{y}  ........(1)

Two squares are constructed such that two adjacent sides of the rectangle

so squares have side x and y .

Area of square = side × side

Area of square with side x = x²

Area of square with side y = y²

Also, The combined area of the two squares is 106 cm².

⇒ x² + y² = 106

From (1) put value of x , we get,

(\frac{45}{y})^2+y^2=106

Solving for y ,

(\frac{45}{y})^2+y^2=106  

2025+y^4=106y^2  

y^4-106y^2+2025=0  

y^4-81y^2-25y^2+2025=0  

y^2(y^2-81)-25(y^2-81)=0  

(y^2-25)(y^2-81)=0

y^2-81=0 or y^2-25=0    

on solving we get y = 5 and y = 9

Also, x can be find by putting in (1),

⇒ x=\frac{45}{5}=9 and ⇒ x=\frac{45}{9}=5  

⇒ x = 9 and x = 5

Thus, lengths of sides of squares are 5 cm and 9 cm.

6 0
4 years ago
Read 2 more answers
Given f(x) = 3x^3 + kx – 5, and x + 1 is a factor of f(x), then what is
DENIUS [597]

Answer:

Step-by-step explanation:

k=-6 ok

5 0
3 years ago
-6 (y + 15) = -3y + 6<br> What value of y makes the equation true?
wolverine [178]

Answer: y=-32

Step-by-step explanation:

1. Simplify:

-6y-90=-3y+6

2. Add like terms:

-96=3y

=> y=-32

Have a nice day! :)

8 0
3 years ago
From a view tower 30 metres above the ground, the angle of depression of an object on the ground is 30 and the angle of elevatio
kompoz [17]

Answer:

90 I guess so

It might be wrong

8 0
3 years ago
F(t) = 200(0.95)^t<br> What is the rate of change?
Nataly [62]

Answer:

f(t)=-5%

Step-by-step explanation:

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3 years ago
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