Help Please. I’ll mark brainliest !!!

Answer:

57.7 m

Step-by-step explanation:

Since the distance between Isabella, the building and the angle form a right angled triangle with the height of the building = h = 50 m as the opposite side and x = distance between Isabella and the building = adjacent side and Ф = angle of elevation of the top of the building from Isabella = 30°.

So, from trigonometric ratios,

tanФ = h/x

and x = h/tanФ

= 50 m/tan30°

= 50/0.5774

= 86.6 m

Also, the distance between Alice, the building and the angle form a right angled triangle with the height of the building = h = 50 m as the opposite side and x' = distance between Alice and the building = adjacent side and Ф' = angle of elevation of the top of the building from Alice = 60°.

So, from trigonometric ratios,

tanФ' = h/x'

and x' = h/tanФ'

= 50 m/tan60°

= 50/1.7321

= 28.87 m

So, the distance between Isabella and Alice, x" = x - x'

= 86.6 m - 28.87 m

= 57.73 m

≅ 57.7 m

Answer:

The answer is B. I think.

Step-by-step explanation:

$75 divided by 10 is 7.5

7.5 = 10%

$41.25 divided by 7.5 or 10% = 5.5

5.5 x 10 = 55%

Sorry if this is not helpful.

The percentage decrease of the chair will be 55%.

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that the chair normally priced at $75, is marked down to $41.25. The percentage decrease will be calculated below,

Percentage decrease = [ Final price / Normal price ] x 100

Percentage decrease = ( 41.25 / 75 ) x 100

Percentage decrease = 0.55 x 100

Percentage decrease = 55%

To know more about the percentage follow

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Answer:

3 /5

Step-by-step explanation:

Given that:

Ratio of red to green to tiles = 2:3

Red = 2

Green = 3

Total sum of each part (red + green) = (2 + 3) = 5

Fraction of green tiles :

Green / total sum

3 / 5

Answer:

BC = 1 6.45

Step-by-step explanation:

The way it is written, BC is the  hypotenuse

BC^2 = AB^2 + CA^2             Substitute the numbers for AB and CA

BC^2 = 13.9^2 + 8.8^2           Perform the squares

BC^2 = 193.21 + 77.44           Add the right side

BC^2 = 270.65                      Take the square root of both sides

BC = 16.45

Answer:

Step-by-step explanation:

I think it's the first last one because proportional means it increases by the same each time so the last one fits in that category

Answer:

Number 1 is proportional, 2 is non proportional, 3 non proportional, 4 non proportional.

Step-by-step explanation:

You divide . 4÷1=4 , 8÷2=4, 12÷3=4, the unit rate MUST be the same !!!! And if there's 0 0, that doesn't count so like if your other 2 have the same unit rate it would still be proportional.

Answer:

2x - 10/3

Step-by-step explanation:

Answer: B

Step-by-step explanation:

honey is added with 56 more pounds of honey making it go up on the graph to almost 300 so the only one that matches this is b.

Answer:

81

Step-by-step explanation:

Answer:

I think 3 if im wrong im sorry.

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

4/9

Step-by-step explanation:

The slope of these points would be: (5-1)/(3+6) = 4/9

Answer:

Hope it helps◉‿◉Have a nice day.

Answer:

The answer is x= 3

Step-by-step explanation:

Divide each term by 3 and simplify.

Hoped this helped!

Could I please get brainly?

Answer:

Is D for your question

Step-by-step explanation:

hope this helps

Answer:

answer is D

step by step

because i looked up the answer

Answer:

Please check explanations

Step-by-step explanation:

Slopes are generally the ratio of rise(vertical difference) to fall (horizontal difference) for set of points lying on a straight line

Positive slopes show a positive relationship between the two things we are considering while a negative one shows otherwise

They are the same in the sense that they actually represent a constant change between the coordinates of the points in the relationship we are considering.

They are different in the sense that while one represents a positive change, whereby both axes move in the same direction ( rise at same rate, fall at same rate) , the second represent a relationship in which they move in opposite directions. While one falls, the other rises and while the other rises, the second one falls which indicates an opposing movement type between the two

Answer:

Im not sure abt the A part. BUT I do know b and c.

Answer: B) 3x^2-13x-30=0

(3x+5) (x-6)=0

3x+5=0          x-6=0

3x=-5               x-6=0

Answers that are the Roots: [ x=-5/3]    and [x=6]

Answer: C) Set factors equal to 0 to find the roots.

Step-by-step explanation:

Don't really need one but hope this helps.

answer:

x = 3

step-by-step explanation:

set up a ratio = big triangle : small triangle

5 : 15

x : 9

x = 3

Answer:

x=33333333333

Step-by-step explanation:

x=33333333333333

Answer:

y = 7.35g

Step-by-step explanation:

Given that:

Cost per gram of saffron = $7.35 per gram

The Cost (y) for g grams of saffron will be :

Cost = cost per gram * number of grams

Cost = $7.35 * g

Cost = 7.35g

Hence ;

y = 7.35g

Answer:

2w + 18u - 4v

Step-by-step explanation:

Answer:

The answer would be B x=-25

Step-by-step explanation:

Answer:

function

Step-by-step explanation:

Answer:i Believe its a. non Function  sorry if. Im. Wrong

Answer: The slope of the line would be 1.25!

Step-by-step explanation: I'll provide a screenshot of the graph I have made in a second! (:

Answer

The multiplicative rate of change that should be in Hal’s function = 49/50=0.98

                                                                                                                  =9.8×10⁻¹

Explanation

The investment of $10,000 decreases by 2% every year. So the following year is usually (100 - 2)=98% of the previous year. This is a geometric progression.

In this case the first term = 10000

The second term = 98% × 10000 = 9800.

The common ratio = 9800/10000=49/50

The multiplicative rate of change that should be in Hal’s function = 49/50=0.98.

The equation of the exponential rate would be;

10,000ₓ0.98ⁿ.

where n is the number years.

Hope his helps! ;)

Answer:

a=23

Step-by-step explanation:

angle a, b,c and are congruent

3a-9+3a-9+3a-9=180

combine like terms

9a-27=180

add 27 on both sides

9a=209

divide by 9 on both sides

a=23

this is just a guess by looking at the image

Answer:

50%

Step-by-step explanation:

Answer:

your answer would be 50%

Step-by-step explanation:

thank you very much :)

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Answer:

27

Step-by-step explanation:

Answer:

b<25

Step-by-step explanation:

Answer:

b ≥ 25.

Step-by-step explanation:

The statement contains the phrase “A minimum of” meaning that the amount of candy bard in each bag could either be anything higher than 25, or just 25. Basically just any number that is greater than or equal to 25. Therefore, you should use the greater than or equal to sign after the variable b and then but the number 25 after that.

I hope this helps you. Have a nice day.

Answer:

a. 40 yards

b. 30 more yards

Step-by-step explanation:

a. 30²+x²=50²

900+x²=2500

x²=1600

x=40

b. It would be 60 yards if she just went to the Elm cabin, but if she went down to the mess hall it would be 50 yards, and then 40 more yards to Elm. 90 is 30 more than 60.

(hope this helps!)