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3 years ago

Here is the third problem:)

Mathematics

2 answers:

lesya [120]3 years ago

6 0

Answer:

15.0

Step-by-step explanation:

we are finidng the adjacent angle, they have given us the opposite and the missing adjacent side so we use tan

tan25=7/x

since x is at the bottom then switch

x= 7/tan25

x= 15. 012

Debora [2.8K]3 years ago

5 0

Answer:

x = 15.01

Step-by-step explanation:

Given degrees 25

Since x is between the right angle and 25, x is adjacent

7 being the other shortest side would be the opposite

Given adjacent and opposite, you can use tangent

Tangent = opposite/adjacent

Tan(25) = 7/x

0.4663076582 = 7/x

x = 7/0.4663076582 (use calculator)

Solution: x = 15.0115484421

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inna [77]

Answer:

$g^{-1}x = \frac{1-2x}{x}$

Step-by-step explanation:

Given the function $g(x)= \frac{1}{x+2}$ , we are to find the inverse of the function and this can be done y following the simple steps:

Step 1: Replace y with $g(x)$

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Step 3: Make y the subject of the formula;

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Hence the inverse of the function is $g^{-1}x = \frac{1-2x}{x}$

3 0

3 years ago

Find all points having an x-coordinate of 5 whose distance from the point (2, 6) is 5

galina1969 [7]

Answer:

(5,2) and (5,10)

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$points\ (2,6),(5,y)\\d=5$

substitute in the formula

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solve for y

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square both sides

$25=(y-6)^{2}+9$

$(y-6)^{2}=25-9$

$(y-6)^{2}=16$

square root both sides

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3 years ago

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garik1379 [7]

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3 years ago

The value of 1.7y+37 is 14 less than the value of 9.3y–25

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Step-by-step explanation:

1.7y + 37 = 14...........equation 1

9.3y - 25 = ?............equation 2

Find the value of y by subtracting 37 from both sides of equation 1

1.7y +37 -37 = 14 - 37

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5 0

3 years ago

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Step-by-step explanation:

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