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3 years ago

5

Two similar triangles are shown below: Which two sets of angles are corresponding angles? ∠w and ∠v; ∠x and ∠y ∠w and ∠y; ∠x and

∠v ∠w and ∠z; ∠x and ∠v ∠w and ∠z; ∠x and ∠y

1 answer:

VARVARA [1.3K]3 years ago

8 0

I think the 2nd one I'm not really sure

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Use cramers rule to solve 4x+3y=4 -3x-y=7 show your work

Nataly_w [17]

$\left\{\begin{array}{ccc}4x+3y=4\\-3x-y=7\end{array}\right\\\\D= \left|\begin{array}{ccc}4&3\\-3&-1\end{array}\right|=(4)(-1)-(-3)(3)=-4+9=5\\\\D_x=\left|\begin{array}{ccc}4&3\\7&-1\end{array}\right|=(4)(-1)-(7)(3)=-4-21=-25\\\\D_y=\left|\begin{array}{ccc}4&4\\-3&7\end{array}\right|=(4)(7)-(-3)(4)=28+12=40\\\\x=\dfrac{D_x}{D}\Rightarrow x=\dfrac{-25}{5}=-5\\\\y=\dfrac{D_y}{D}\Rightarrow y=\dfrac{40}{5}=8$

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3 years ago

Mrs.drew want to build a square sandbox with an area of 361 square feet what is the total length of wood mrs. Drew needs to make

Taya2010 [7]

Answer:

180.5 ft

Step-by-step explanation:

the area for the sand box would be calculated as length × width. since the sandbox is square each side is the same length. the side will be half the number of the area.

361 ÷ 2 = 180.5 ft

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3 years ago

What the health I have no clue help! Number 8

snow_lady [41]

since 10 students is the most amount of kids on each bus, you can fit less than 10 people on it. so i don't know if the question wants each bus to have to same amount of students or each bus having different amounts.

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3 years ago

Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c= 81,000 km. Assume the cen

elena-14-01-66 [18.8K]

Answer:

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

Step-by-step explanation:

the transverse axis is horizontal.

so its a horizontal hyperbola

Center is the origin so center is (0,0)

Equation of horizontal hyperbola is

$\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$

Given a= 55000 and c= 81000

c^2 = a^2 + b^2

81000^2 = 55000^2 + b^2

subtract 55000^2 on both sides

b = sqrt(81000^2 - 55000^2)= 59464.27

now plug in the values

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

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3 years ago

Which of the following diagram represent a relation that is not a function

andrew11 [14]

You didn’t even post a diagram

which of the following diagram represent a relation that is not a function

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3 years ago