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3 years ago

X=_? please help. this assignment makes no sense and i cant find any helpful videos.

Mathematics

1 answer:

Elina [12.6K]3 years ago

7 0

See "intersecting secants theorem" (you should be able to find a variant that specifically applies to arc measures). It says that for this circle,

$30^\circ=\dfrac{x-40^\circ}2\implies x=100^\circ$

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Solve for A................. H= A/2

grigory [225]

Step-by-step explanation:

First, multiply each side of the equation by

to eliminate the fraction while keeping the equation balanced:

2×A=2×h2(a+b)

2A=2×h2(a+b)

2A=h(a+b)

Now, divide each side of the equation by

to solve for

while keeping the equation balanced:

2Aa+b=h(a+b)a+b

2Aa+b=h

h=2Aa+b

3 0

3 years ago

What is the solution of each proportion? 4/9=m/54

Alex

It is M=24 your welcome

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3 years ago

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Challenge Yael used to have a square garage with 370 ft ^2of floor space. She recently built an

Yuki888 [10]

Scale factor of area is the square of the scale factor of length

The required values are;

The length of one sides of the garage was originally approximately 19.2 ft.

The length of one of the sides of the garage is now approximately 23.6 feet long

The percentage increase in length is approximately 22.5 %

Reason:

The given parameters are;

The area of the square garage = 370 ft.²

The area of the new garage has 50% more space

Required;

Part A

The initial side length

The initial side length, given to the nearest tenth, s, is the square root of the area, A, given as follows;

s = √(370 ft.²) ≈ 19.2 ft.

Part B

The side was increased by 50%, to give,

370 + 0.5×370 = 555

The new area of the garage = 555 ft.²

The side length of the new garage, s = √(555) ≈ 23.6

The side of the garage now is 23.6 ft.

Part C

The percentage increase is given as follows;

$The \ percentage \ increase \ in \ length = \dfrac{New \ length - Initial \ length}{Initial \ length }$

$The \ percentage \ increase \ in \ length = \dfrac{\sqrt{555} - \sqrt{370} }{\sqrt{370} } \times 100 \approx 22.5 \%$

The percentage increase in length of the side of the garage is approximately 22.5 %

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2 years ago

Question 2 1 pts Asplaner has three sections colored green, purple, and pink. If the spinner is spun three times, how many possi

horrorfan [7]

Answer:

Step-by-step explanation:

its 3 because there are only 3 colors. i also got it right on the test

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3 years ago

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An economist wanted to investigate the relationship between office rents (the dependent variable) and vacancy rates. Accordingly

lesantik [10]

The regression line will be y = 20.64 - 0.3038x.

<h3>How to explain the regression?</h3>

It should be noted that regression is a statistical method that determine the relationship between the variables.

Here, the regression line will be y = 20.64 - 0.3038x. The slope coefficient is -0.03038 and the intercept is 20.460.

The slope coefficient defines that for a unit increase in the percentage of vacancy rate will reduce 0.3038 unit of monthly office rent.

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2 years ago