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3 years ago

20 POINTS!! ASAP! PLS SHOW WORK!! TYY

Mathematics

1 answer:

astra-53 [7]3 years ago

7 0

Step-by-step explanation:

From the figure :

Cos 57° = 19.3 / AB

AB = 19.3 / 0.54

AB = 35.74 cm

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Find an integer between 70 and 80 that is made up by using the following -3, 9, -5, (), squared

storchak [24]

75

Mark brainliest please

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3 years ago

To determine the price of servicing a car, a

Serggg [28]

Answer:

Hey there!

We can write this equation, where x is the hourly rate and y is the fixed fee.

4x+y=270

7x+y=420

4x+y=270

-7x-y=-420

-3x=-150

x=50

4(50)+y=270

200+y=270

y=70.

The fixed fee is G. $70.

Let me know if this helps :)

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4 years ago

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Use the formula Sn =a (1 - rn ) ÷ (1 – r) to find the sum Sn for each of the infinite and finite geometric series.

AVprozaik [17]

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Step-by-step explanation:

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3 years ago

A planet follows an elliptical path described by 16 x squared + 4 y squared = 64. A comet follows the parabolic path y equals x

saul85 [17]

Answer:

The comet might intersect the orbiting planet at (0, -4), $(\pm\frac{\sqrt{31}}{2},\frac{15}{4})$ .

Step-by-step explanation:

Given that, a planet follows an elliptical path described by

$16x^2+4y^2=64$ .........(1)

A comet follows the parabolic path

$y=x^2-4$

$x^2=y+4$ .........(2)

To find the intersecting point, we need to solve the above equations.

Putting $x^2=y+4$ in the equation (1)

$y+4+4y^2=64$

$\Rightarrow 4y^2+y+4-64=0$

$\Rightarrow 4y^2+y-60=0$

$\Rightarrow 4y^2+16y-15y-60=0$

$\Rightarrow 4y(y+4)-15(y+4)=0$

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$\Rightarrow y=-4, \frac{15}{4}$

When y = -4 , then $x^2=-4+4$ $\Rightarrow x=0$

When $y=\frac{15}{4}$ , then $x^2=\frac{15}{4}+4$ $\Rightarrow x=\pm \frac{\sqrt{31}}{2}$

The comet might intersect the orbiting planet at (0, -4), $(\pm\frac{\sqrt{31}}{2},\frac{15}{4})$ .

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3 years ago

What is the measurement of abd

belka [17]

Answer:

it is 23. always remember it's supposed to add up to 180. So add up all your numbers and subtract the total from 180 to get your answer

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3 years ago

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