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3 years ago

9

Please help, 30 points, brainliest, and thanks!

1 answer:

PolarNik [594]3 years ago

6 0

BEDMAS is a main strategy to simplify algebraic expressions. Following the order of operations ensures accuracy.
Inverse operations help solve equations by isolating the value(usually a variable) that you are trying to find. Or by rearranging the equation so that it can be simplified or solved easier.
A real world scenario would be conversions. By using ratios of conversions and manipulating the equation you can convert many things.

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The equation for the rollercoaster before is f(x)=-0.2x^2-2x

katovenus [111]

??? The answer is not able to be found for the fact that there are 3 numbers all coming from x.

7 0

2 years ago

A tourist looks out from the observation deck of the Space Needle in Seattle. The deck is at a height of 520 ft. She sees her fr

evablogger [386]

Answer:

40 feet

Step-by-step explanation:

Given : The deck is at a height of 520 ft. She sees her friend on the ground below at an angle of depression of 85.6 degrees.

To Find : What is the distance between the two? Round your answer to the nearest tenth of a foot.

Solution :

Refer the attached figure

Height of deck =AB =520 ft.

Angle of depression ∠C = 85.6°

We are supposed to find length of BC i.e. distance between two.

We will use trigonometric ratios :

$tan \theta = \frac{perpendicular}{base}$

$tan 85.6^{\circ} = \frac{AB}{BC}$

$12.99615= \frac{520}{BC}$

$BC= \frac{520}{12.99615}$

$BC= 40$

Thus the distance between two is 40 feet

7 0

3 years ago

Read 2 more answers

On story Ratios Worksheet 3: how do you do this problem. Jackie sold lemonade and made $24 while Liana sold lemonade and made $3

Drupady [299]

Answer:

Ratios of money made by Jackie and Liana = $\frac{2}{3}$

Step-by-step explanation:

We have given,

On selling a lemonade :

Money made by Jackie = $24

Money made by Liana = $36

We need to find the ratios of money made by Jackie and Liana by selling lemonade.

So, Ratio = Money made by Jackie / Money made by Liana

or , Ratio = $\frac{24}{36}$

or, Ratio = $\frac{2}{3}$

So, the ratios of money made by Jackie and Liana is $\frac{2}{3}$

8 0

3 years ago

X-3x+3<6 <br> Solve the problems

bixtya [17]

Answer:

x > -3/2

Step-by-step explanation:

x-3x+3<6

Combine like terms

-2x+3<6

Subtract 3 from each side

-2x +3-3<6-3

-2x <3

Divide each side by -2,remembering to flip the inequality

-2x/-2 > 3/-2

x > -3/2

5 0

3 years ago

Read 2 more answers

So, I need to find the value of b but im very confused on how to! Can someone help me?

Angelina_Jolie [31]

b = 78°

The angles at a point sum to 360°

that is 45 + 237 + b = 360

282 + b = 360 ( subtract 282 from both sides )

b = 360 - 282 = 78°

5 0

3 years ago