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2 years ago

The point LaTeX: \left(-1,\:5\right)( − 1 , 5 ) is the solution for the following system of equations

Mathematics

1 answer:

balu736 [363]2 years ago

4 0

I think right is correct ( - 1, 5 )

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The field inside a running track is made up of a rectangle that is 84.39 m long and 73 m wide, together with a half-circle at ea

ioda

Answer:

The distance around the inside is 199.44 m.

Step-by-step explanation:

Given that,

Length = 84.39 m

Width = 9.76 m

Suppose, all the way around and 73 m wide.

We know that,

Perimeter of half circle is

$perimeter = \pi r$

We need to calculate the inner radius of the circle

Using formula of radius

$r=\dfrac{D}{2}$

Put the value into the formula

$r=\dfrac{9.76}{2}$

$r=4.88\ m$

We need to calculate the distance around the inside

Using formula of distance

Distance around the inside= two inner perimeter of the circle+two length of rectangle

$D=2\pi r+2l$

Put the value into the formula

$D=2\pi\times4.88+2\times84.39$

$D=199.44\ m$

Hence, The distance around the inside is 199.44 m.

6 0

2 years ago

What are the zeros of the polynomial function? <br><br> F(x)= x^2 + 12x +20

vampirchik [111]

Answer:

Step-by-step explanation:

$F(x)=x^2+12x+20\\\\\text{The zeros:}\\\\F(x)=0\iff x^2+12x+20=0\\\\x^2+2x+10x+20=0\\\\x(x+2)+10(x+2)=0\\\\(x+2)(x+10)=0\iff x+2=0\ \vee\ x+10=0\\\\x+2=0\qquad\text{subtract 2 from both sides}\\\boxed{x=-2}\\\\x+10=0\qquad\text{subtract 10 from both sides}\\\boxed{x=-10}$

3 0

2 years ago

Use the following area model to multiply 42 x 73

Sergio [31]

A=2800,B=120,C=140,D=6

7 0

2 years ago

nevsk [136]

Answer:

69 need to be added

Step-by-step explanation:

1300 +69 = 1369

37 ² = 1,369

square root of 1,369 is 37

5 0

2 years ago

Your friend says that V169 is 13. Another

Katena32 [7]

The first friend your very welcome

4 0

2 years ago

Read 2 more answers