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2 years ago

How do I solve this?

Mathematics

1 answer:

serg [7]2 years ago

5 0

Answer:

(x, y) = (18, 5)

Step-by-step explanation:

Assuming the three lines meet at a single point at lower left (the figure is sloppily drawn), the angle (3x)°+49° is a corresponding angle to (7x-23)°. That means they have the same measure:

3x +49 = 7x -23

72 = 4x . . . . . . . . . add 23-3x

18 = x . . . . . . . . . . . divide by 4

Angles (3x)° and (11y-1)° are "corresponding" angles, so are congruent.

3x = 11y -1

3(18) +1 = 11y . . . . add 1, fill in the value of x

55/11 = y = 5 . . . . divide by 11

The values of x and y are 18 and 5, respectively.

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A certain forest covers an area of 2100 km^2. Suppose that each year this area decreases by 5.25%. What will the area be after 6

Neko [114]

Answer:

The area after 6 years is $1519.49km^2$

Step-by-step explanation:

Given

$a = 2100$ --- Initial Value

$r = 5.25\%$ --- Rate

Required

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Because the area reduces,, the following formula will be used to solve the question.

$y = a*(1 - r)^t$

Here

$t = 6$

So, we have:

$y = 2100*(1 - 5.25\%)^6$

Convert percentage to decimal

$y = 2100*(1 - 0.0525)^6$

$y = 2100*(0.9475)^6$

$y = 1519.47866516$

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2 years ago

What is 11/3 divided by 2/3

sleet_krkn [62]

Answer:

11/2

Step-by-step explanation:

you use the keep, change, flip method so this becomes 11/3 times 3/2 then multiply regularly

4 0

1 year ago

A person invest $8800 in an account at 7% interest compounded annually. When will the value of the investment be 13,200? (Type a

Nitella [24]

Answer:

21.43

Step-by-step explanation:

Turn 7 percent to a decimal: 0.07

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1 year ago

write an equation in point-slope form for the line that has a slope of 15 and contains the point (2,−9).

Lorico [155]

Answer:

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Step-by-step explanation:

The point-slope form of the equation for a line is ...

y -k = m(x -h) . . . . . . for slope m and point (h, k)

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2 years ago

Good afternoon please help! Geometry! Thank You!! Brainliest!

Step2247 [10]

Answer:

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2 years ago