3 years ago

T= hp+2b solving for b

Mathematics

1 answer:

N76 [4]3 years ago

8 0

B=-1/3 hp+1/3 t

hope this helps

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Whats 74.4% rounded to the nearest tenth of a percent?

Arte-miy333 [17]

Answer:

74.4

Step-by-step explanation:

It is already rounded to the nearest tenth of a percent. If it was rounded to the nearest percent it'd be 74%.

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3 years ago

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LK is tangent to circle J at point K. Circle J is shown. Line segment J K is a radius. Line segment K L is a tangent that inters

Evgen [1.6K]

Answer:

$(B)r=\dfrac{85}{12}$

Step-by-step explanation:

Given a circle centre J

Let the radius of the circle =r

LK is tangent to circle J at point K

From the diagram attached

LX=6
Radius, XJ=JK=r
LK=11

Theorem: The angle between a tangent and a radius is 90 degrees.

By the theorem above, Triangle JLK forms a right triangle with LJ as the hypotenuse.

Using Pythagoras Theorem:

$(6+r)^2=r^2+11^2\\(6+r)(6+r)=r^2+121\\36+6r+6r+r^2=r^2+121\\12r=121-36\\12r=85\\r=\dfrac{85}{12}$

The length of the radius, $r=\dfrac{85}{12}$

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3 years ago

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Find the area of the following figure. Explain how you found your answer.

iragen [17]

Answer:

Below

Step-by-step explanation:

Let's say that each square on the grid represents 1 cm

First find the area of the two triangles

For the larger one: A = bh/2

A = 3 x 3 / 2

= 4.5 cm^2

For the smaller one : A = bh/2

A = 2 x 2 / 2

= 2 cm^2

For the rectangle : A = lw

A = 4 x 5

= 20 cm^2

Add them all up to get the area

4.5 + 2 + 20 = 26.5 cm^2

Hope this helps!

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2 years ago

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Please help thxxx I will mark brainlest !!!!

Harlamova29_29 [7]

Answer:

C) Y= x-1/2

Hope it helped !

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3 years ago

X+y+z=1<br> X-2y+3z=2<br> X+z-5=0

serious [3.7K]

x+y+z=1

x=1/(y+z)

1/(y+z)-2y+3z=2

1-2y²-2yz+3yz+3z²=2(y+z)

(1-2y²+yz+3z²)/2=y+z

z=(1-2y²+yz+3z²)/2 -y/1

z=(1-2y²+yz+3z²-2y)/2

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3 years ago