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3 years ago

Please help serious answers only

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

It’s 28, 16 add 4 is 20 add 8 is 28

Usimov [2.4K]3 years ago

3 0

Answer:

Step-by-step explanation:

Plug in 4 for y

3(4)² + (4) + 8

3(16) + 4 + 8

48 + 12

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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

3 years ago

I’m confused on this one

tatyana61 [14]

$6\sqrt2$

Why?

We have the isosceles right triangle. The length of legs are 6. Use the Pythagorean theorem:

$h^2=6^2+6^2\\\\h^2=36+36\\\\h^2=36\cdot2\to h=\sqrt{36\cdot2}\\\\h=\sqrt{36}\cdot\sqrt2\\\\h=6\sqrt2$

In general, the formula for calculating the hypotenuse in an isosceles right triangle is $h=a\sqrt2$

a - a leg, h - a hypotenuse

7 0

3 years ago

Where does the wraps intersect each other? <br> Y=-x+1 and <br> Y=3x+5

lora16 [44]

(-1,2) is where it will intersect

7 0

3 years ago

Heeeeeeeeeeeeeelllllllllllllppppppppppp

Temka [501]

Answer:

1/6*6

Step-by-step explanation:

3 0

3 years ago

2(2t+4)=3/4(24−8t) please help

Tcecarenko [31]

Step-by-step explanation:

the process is shown above hope you understand.

5 0

3 years ago