Mathematics High School

A ladder is placed against a wall.
To be safe, it must be inclined at between 70° and 80° to the ground.
5.8m
O 11N/Ma1 lesson 3438
HERRER
1.5m
MM
G
(a) is the ladder safe?

A Ladder Is Placed Against A Wall.To Be Safe, It Must Be Inclined At Between 70 And 80 To The Ground.5.8mO

Answers

Answer 1

Answer:

yes it is safe.

Step-by-step explanation:

Tan^-1 (5.8/1.5)

theta = 75.5

yes, it is safe

Answer 2

The angle is between 70° to 80°.

Yes, the ladder is safe.

What are trigonometric identities?

There are three commonly used trigonometric identities.

Sin x = 1/ cosec x

Cos x = 1/ sec x

Tan x = 1/ cot x or sin x / cos x

Cot x = cos x / sin x

We have,

From the figure,

tan Θ = 5.8 / 1.5

Θ = tan (5.8 / 1.5)

Θ = 75.5°

The angle is between 70° and 80°.

Thus,

The ladder is safe.

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Related Questions

HELP!! I DON't HAVE MUCH TIME

Answers

the answer is 153 you’re welcome !!

You have 10 coins, all dimes and quarters. The value
of the coins is $1.75.
How many dimes do you have?
How many quarters do you have?

Answers

You will have 5 quarters =$1.25
Then 5 dimes which is =50¢
In all it’s =$ 1.75

Answer:

The answer would be 5 of each.

Step-by-step explanation:

5 * .10 + 5 * .25 = $1.75

you have saved up for a tropical vacation your plane ticket cost $320 what is the maximum that you can spend during your vacation without going over your $1,200 budget

Answers

880$ because 1200-320 would be 880 :)


How do you find the value of 35(10^-8)? Find the answer.
To find the value, you will need to use the Order of Operations (PEMDAS).

Answers

Answer:

Step-by-step explanation:

35(10⁻⁸) = 35(0.00000001) = 0.00000035

if you sprain your ankle and place a cold pack on it in which direction does thermal energy move

Answers

Answer:It will move right

Step-by-step explanation:

Match each vertex in IJL to its corresponding vertex in the dashed triangle.

Answers

Answer:

Step-by-step explanation:

It’s LJK

The two lines represent the distance traveled, over time, by two trains. Which train is traveling more quickly?

Answers

huh show us a picture of it or something,

what is 18 rounded to the nearst 1/4

Answers

Answer:

18

Step-by-step explanation:

1/4 is close to 0 so 18 rounded to the nearest ones place is just 18

Answer:

20

Step-by-step explanation:

When we round to the nearest ten, we will round up to a number that has a zero in the ones place but we have to look at the number in the ones place before we round to determine the number in the tens place. The rule is if the number in the place before the place we need to round (in this case the ones place would be what we look at to determine the rounded tens place) 1-4 is going to round down, keeping the tens place the same and the ones place goes to zero, and if the ones number place is 5-9 then we round up, bringing the ones to zero and the tens up by one tens place.

Box the greatest decimal and encircle the least decimal in each number.

1. 3.49 3.498 3.149 3.4

2. 333.5 333.56 33.356 3.987

3. 8.047 80.47 804.7 0.8047

4. 700.08 700.088 700.008

5. 0.123 0.457 0.127 0.0678​

Answers

Answer:

From greatest to least

1) 3.498 3.49 3.4 3.149

2) 333.56 333.5 33.356 3.987

3) 804.7 80.47 8.047 0.8047

4) 700.088 700.08 700.008

5) 0.457 0.127 0.123 0.0678

Step-by-step explanation:

Explaining just 1st and 4th

1.

The number 3.498 is bigger than 3.49 because it's basically this number 3.490

The same thing happens in 2nd and 3rd number 3.49 > 3.40

And the last number I think I don't have to explain :-)

4.

700.088 is bigger because 700.08 is smaller

700.080

If you have any questions contact me on amino Ayleena

Pls help me pls I’ll give brainliest pls dont answer if you don’t know

Answers

Answer:

x=-2

Step-by-step explanation:

Like terms are terms that are like each other

2x and x both have x

3 and 9 are both constants

Move them so they are next to each other

-2x-x=9-3

-3x=6

x=-2

Plsss asap help with circles geo!!!!

Answers

3. You’d take half of 98 and the answer would be 49
4. You would subtract 100 from 180 and multiply the 80 by 2 to get 160
5. You would divide 38.5 by 2 and get 9.25. Take that and subtract by 180 and get 160.75 (I’m iffy on this one)
6. 90 degrees since the diameter is perpendicular to the line

PLEASEEE HELP ASAP ITS IMPORTANT !!!!

Answers

Answer:

The rate of change in the table is 78 students per year

Step-by-step explanation:

Here, we want to get the rate of change of the function

Mathematically, we can get this by using the formula;

m = (y2-y1)/(x2-x1)

(x1,y1) and (x2,y2) are points we are to select from the table

Let us select the point (4,704) and (17,1718) from the table

The slope is thus;

m = (1718-704)/(17-4) = 78 students per year

There are 5,280 feet in 1 mlle. If Riley ran 26,400 feet, how many mlles did she run? [Type your answer as a number.]
miles

Answers

#BTS

#Bangtan

#BTS_Purple_Heart

Riley ran 5 miles. All you needed to do was divide 26,400 by 5,280 which gives you five.

for part of a recipe jada adds 0.35 milliliters of vanilla extract to 16.4 milliliters of milk. How many milliliters does the mixture contain??

Answers

Answer: 16.75 milliliters
Step-by-step explanation:
I believe it is 16.75 because 0.35 + 16.4 is 16.75 why is it addition decimals? Because it says How many milliliters does the mixture contain. It is talking about both combined.

The ordered pairs (x, y) define the relation Q.
{(4, 5), (-3,2), (5,5), (, - 3)}
Is Q a function?

Answers

Answer:

A

Step-by-step explanation:

Yes, because there is exactly one x-value for every y-value.

Marsha wants to walk from the parking lot through the forest to the clearing, as shown in the diagram. She knows that the forest ranger station is 154 feet from the flag pole and the flag pole is 350 feet from the clearing. How far is the parking lot from the clearing? Distance from parking lot to clearing _________

Answers

Answer:

420

Step-by-step explanation:

504/x = x/350

x² = 176,400

[tex]\sqrt{176,400}[/tex] = 420

Please help me everytime I post this no one helps :( and I need this done soon

Answers

1 I think. Tell me if that is correct

Answer:

Its should be 1 because the graph shows you thats its 1

12y + 2x = 24
Solve for y
Simplify answer

Answers

Answer: y= -2x/12+2

Step-by-step explanation:

12y=-2x+24

y= -2x/12 +2

how can you determine if the association on scatter plot is strong or weak

Answers

Answer:

We say that a strong negative association exists between the variables x and y. Consider the following scatterplot: We observe that y increases as x increases, and the points do not lie on a straight line. We say that a weak positive association exists between the variables x and y.

Step-by-step explanation:

Answer:

We say that a strong negative association exists between the variables x and y. Consider the following scatterplot: We observe that y increases as x increases, and the points do not lie on a straight line.

Step-by-step explanation:

what is greater 0.059 or .59

Answers

Answer:

.59

because 0.059 is 10 times greater i dont know lol its just common sense that its .59

In a class of 22 students, 13 have a brother and 15 have a sister. There are 3 students who do not have any siblings. What is the probability that a student has a brother given that they do not have a sister?

Answers

Answer:

1/4

Step-by-step explanation:

The probability that a student has a brother given that they do not have a sister 9/7.

How to calculate the probability of an event?

Suppose that there are finite elementary events in the sample space of the considered experiment, and all are equally likely.

Then, suppose we want to find the probability of an event E.

Then, its probability is given;

[tex]\rm P(E)=\dfrac{Number \ of \ favourable \ events}{Number \ of \ total \ events}\\\\[/tex]

In a class of 22 students, 13 have a brother and 15 have a sister.

There are 3 students who do not have any siblings.

3 students don't have a sibling.

The probability that a student has a brother given that they do not have a sister is;

[tex]\rm P(E)=\dfrac{Number \ of \ favourable \ events}{Number \ of \ total \ events}\\\\ \rm P(E)=\dfrac{13+15-22+3}{22-15}\\\\\rm P(E)=\dfrac{31-22}{7}\\\\ P(E)=\dfrac{9}{7}[/tex]

So, the probability that a student has a brother given that they do not have a sister 9/7.

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NEED HELP! find the slope of the line that passes through the two given points (-3,4) and (-3, -8)

Answers

Answer:

Y=0

Step-by-step explanation:

The x axis is the same making the line a horizontal line. A horizontal line has a slope of 0

The sum 9 of and x
??

Answers

x + 9 is your answer!



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2 is what percent of 200

Answers

Answer:

1%

divided 2/ 200 and your answer as a persent is  1%

Step-by-step explanation:

may i get brainliest i need 1 more?

2 is 1 percent of 200.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Let 2 is x% of 200.

Now, x% of 200 =2

x/100 ×200 =2

200x=200

x=1

Therefore, 2 is 1 percent of 200.

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1/2(n+2)+4=3n-5
need help​

Answers

Answer:

Hi! Your answer is n=4!!

Step-by-step explanation:

Solve for n by simplifying both sides of the equation, then isolating the variable.

PLEASE HELP ME this is due today

Answers

21 yrd square, the correct answer

1. Solve for n: n+5/16 = -1
(A) 96
(B) -96
(C) 21
(D) -21​

Answers

The answer is D -21

loooook below giving brainliest

Answers

Answer:

32.5 is the correct answer

Multiply. −37xy(−35x3y2) Enter your answer in the box

Answers

Answer:

Hi! Your answer is 1295x^4y^3

Step-by-step explanation:

Simplify the expression.

Answer:

i got 15x^4y^3

Math edge is attatched, I will mark brainliest to answers!

Answers

Answer:

Step-by-step explanation:

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