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3 years ago

8

The shape of a carpet is a semicircle. Use 22 7 as an approximation for π. a) Find its area. b) Janice wants to put a fringed bo

rder on all sides of the carpet. How many feet of fringe are needed?

1 answer:

Trava [24]3 years ago

7 0

Answer:

Step-by-step explanation:

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If f(x)= 3x + 1 what is is the value of x when f(x)= 15

astraxan [27]

Answer:

46

Step-by-step explanation:

8 0

2 years ago

√7.5×√3.5 step and answer

irina1246 [14]

Answer:

√105/2

Step-by-step explanation:

Given the surd expression √7.5×√3.5, this can also be expressed as;

√7.5×√3.5

= √75/10 × √35/10

= √(75×35)/10×`10

=√105×25/100

= 5√105/√100

=5√105/10

=√105/2

Hence the required expression a √105/2

4 0

3 years ago

Find x and y…………….????????

emmasim [6.3K]

Answer:

$let \: \alpha \: be \: the \: 45 \\ \tan( \alpha ) = \frac{p}{b} \\ \tan(45) = \frac{x}{3 \sqrt{2} } \\ 1 = \frac{x}{3 \sqrt{2} } \\ x = 3 \sqrt{2} \\ by \: using \: pythagoras \: therom \\ {y}^{2} = {3 \sqrt{2} }^{2} + {3 \sqrt{2} }^{2} \\ {y}^{2} = 18 + 18 \\ y = \sqrt{36} \\ y = 6$

Step-by-step explanation:

hope this will help you

8 0

2 years ago

Find x <br><br>—3(x – 4) = -9(x - 1)

Mrrafil [7]

Answer:

x=-1/2

Step-by-step explanation:

-3(x-4)= -9(x-1)

-3x+12= -9x+9

-3x+9x= 9-12

6x= -3

x=-3/6

x= -1/2

7 0

2 years ago

The sum of two numbers is equal to 63, and their difference is equal to 12. Find the numbers

Ainat [17]

Answer:

25.5 and 37.5

Step-by-step explanation:

x+y=63

x-y = 12 then x = 12 + y sub this into the first equation

(12+y) + y = 63

12 + 2y = 63

2y = 51

y = 25.5 then x = 37.5

6 0

2 years ago