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3 years ago

I really need. help can you solve for x.

Mathematics

1 answer:

S_A_V [24]3 years ago

5 0

so for some reason I couldn't add my answer so I screenshot it and added it below uhh hope it helps!

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Please help Find the value of x, m∠5 = x-6, m∠4 = 2x+4, m∠2 = 2x-26

bazaltina [42]

9514 1404 393

Answer:

x = 30 2/3

Step-by-step explanation:

Angles 4 and 5 are complementary, so we have ...

m∠4 +m∠5 = 90°

(2x +4) +(x -6) = 90

3x -2 = 90 . . . . . . . . . collect terms

3x = 92 . . . . . . . . . . add 2; next, divide by 3

x = 92/3 = 30 2/3

5 0

2 years ago

The radius is 9 in.what is the area

Yuliya22 [10]

Answer:

254.47

Step-by-step explanation:

Area= r²π

A= 9²π

A= 81π

A= 524.47

NB: this is a pi sign (π)

3 0

3 years ago

a hot air ballon descended 99.6 meters in 21 seconds what was the balloons average rate of descent in metters per second

ryzh [129]

Just divide 99.6 by 21...

Because you want to know how many meters per second..

99.6 / 21 = around 4.74 meters

so the rate of descent is around 4.74 meters

7 0

3 years ago

To prove that the triangles are similar by the SAS similarity theorem, it needs to be shown that

MakcuM [25]

Answer:

2 sides and angle between them are congruent to the same 2 sides and angle on the other triangle

Step-by-step explanation:

6 0

1 year ago

Problem A. Consider the following initial value problem for a damped driven linear oscillator: m 2 + b** + kx} = f sin(St); x(0)

skad [1K]

Answer:

a = L

b = MT^(-1)

c = LT^(-1)

k = MT^(-2)

f = MLT^(-2)

S = T^(-1)

Step-by-step explanation:

x (0) = a

x is denoted by displacement in vibration analysis hence attains units of x.

Hence, a = L

b is the damping coefficient:

$b = \frac{F}{\frac{dx}{dt} } \\= MLT^(-2) / LT^(-1)\\= MT^(-1)$

x'(0) = c

dx/dt = velocity hence c attains the units of velocity

c = LT^(-1)

Coefficient k is the stiffness:

$k = \frac{F}{x} = \frac{MLT^(-2)}{L} = MT^(-2)$

Coefficient f is the magnitude of the exciting force

$F = m*acceleration = MLT^(-2)$

Coefficient S is the angular frequency

angular frequency is displacement in radians per seconds; hence,

S = T^(-1)

7 0

3 years ago