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3 years ago

Please help. I will be constantly asking questions on the app to finish a class and i only have a day

Mathematics

1 answer:

alekssr [168]3 years ago

8 0

Answer: C $0\leq y\leq 5$

Step-by-step explanation:

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Can you guys help me I need help

dem82 [27]

Answer:

182m^2

Step-by-step explanation:

Area of parallelogram. Base x Height = 13 x 14 = 182m^2

Hope this helps.

3 0

3 years ago

the angle of elevation from the bottom of a scenic gondola ride to the top of a mountain is 31 degrees. if the vertical distance

Eduardwww [97]

Answer:

The ride lasts 10 minutes.

Step-by-step explanation:

The triangle that is formed is attached.

In order to find out how long the ride lasts, we need to figure out the horizontal distance $d.$

From trigonometry we have:

$tan(31^o)=\frac{902}{d}.$

Therefore

$d=\frac{902\:feet}{tan(31^o)}=1501\:feet.$

Now the amount of time $t$ the gondola ride lasts is equal to the distance $d$ divided by the speed of the gondola:

$t=\frac{1501ft}{155ft/sec} =\boxed{9.69\:minutes.}$

To the nearest minute this is 10 minutes.

7 0

4 years ago

Prove that: <img src="https://tex.z-dn.net/?f=tan20%2B4sin20%3D%5Csqrt%7B3%7D" id="TexFormula1" title="tan20+4sin20=\sqrt{3}" al

ankoles [38]

tan( 20 ) + 4 Sin( 20 ) =

( Sin( 20 ) / Cos( 20 ) ) + 4 Sin( 20 ) =

Sin( 20 ) + 4 Sin( 20 ).Cos( 20 ) / Cos( 20 ) =

Sin( 20 ) + 2 × 2 Sin(20).Cos(20)/ Cos(20) =

Sin( 20 ) + 2 × Sin( 40 ) / Cos( 20 ) =

Sin( 20 ) + 2Sin( 40 ) / Cos( 20 ) =

Sin( 20 ) + 2Cos( 50 ) / Cos ( 20 ) =

Sin( 20 ) + 2Cos( 20 + 30 ) / Cos( 20 ) =

________________________________

2 × Cos( 30 + 20 ) =

2 × [ Cos(30).Cos(20) - Sin(30).Sin(20) ] =

2 × [ √3/2 × Cos(20) - 1/2 × Sin(20) ] =

√3 Cos(20) - Sin(20)

_________________________________

Sin( 20 ) + 2Cos ( 20 + 30 ) / Cos( 20 ) =

Sin( 20 ) + √3 Cos(20) - Sin(20) / Cos(20) =

Sin(20) - Sin(20) + √3 Cos(20) / Cos(20) =

0 + √3 Cos(20) / Cos(20) =

√3 Cos(20) / Cos(20) =

Cos(20) simplifies from the numerator and denominator of fraction

√3 × 1 / 1 =

√3

And we're done ....

4 0

3 years ago

Can anyone help with problem 9.9 in the middle pls

ELEN [110]

Answer:

Angle 1: 53

Angle 2: 72

Angle 3: 55

Angle 4: 127

Angle 5: 53

Angle 6: 66

Angle 7: 125

3 0

3 years ago

Solve each equation of 23=7x

solniwko [45]

23=7x
Divide both sides by 7
23/7=x
That is the only answer to this equation

8 0

4 years ago

Please help. I will be constantly asking questions on the app to finish a class and i only have a day​

Please help. I will be constantly asking questions on the app to finish a class and i only have a day