a building 270 feet tall casts a 40 foot long shadow. if a person looks down from the top of the building, what is the measure of the angle between the upper end of the shadow and the vertical side of the building to the nearest degree? (assume the person's eyes are level with the top of the building)
A. 81°
B. 8°
C. 9°
D. 82°​

Answers

Answer 1

Answer:

A.

Step-by-step explanation:

Use tangent ratio

Answer 2

Answer:

A.

Step-by-step explanation:

Use tangent ratio


Related Questions

What is the degree of 3x^4-4x^2?

Answers

Answer:

the degree is 4

Step-by-step explanation:

the largest exponent of x


How many solutions does this system of equations
have?

Infinite
None
One

Answers

Answer:

Step-by-step explanation:

None

The hint is in the slopes which is the number in front of x. Both equations have a slope of 1/2

The y intercepts are different (4 for the top one 2 for the bottom one). That tells you that you have two lines and not one of top of the other. These two lines never meet, because the slopes are the same. Therefore there are no values that both lines have in common.

That makes the answer none.

y=-1,X+2y=9 solve by substitution show all work

Answers

Answer:

x = 11

Step-by-step explanation:

Substitute y = -1 into the equation.

x+2y = 9

; x+2(-1) = 9

x+(-2) = 9

x-2 = 9

x = 9+2

x = 11

help please..
Select the correct image.
Given triangle A in the coordinate plane, which image shows a dilation of triangle A by a factor of 2 centered at the origin?

Answers

Answer:

C

Step-by-step explanation:

C because each point is twice as far from the origin

Answer:

c

Step-by-step explanation:

Alg 2 the problem is below please help !!!

Answers

The answer is: -72.19634511

Write an equation in point-slope form of the line that passes through the point (−3,6) and has a slope of 5.

Answers

Answer:

Below in bold.

Step-by-step explanation:

Point slope form is y - y1 = m(x - x1)

where m = the slope of the line and (x1, y1) is a point on the line.

Here m = 5, x1 = -3 and y1 = 6.

So we have:

y - 6 = 5( x - (-3))

y - 6 = 5(x + 3)   (Answer)

Solve 4,200 ÷ 70 = ________. Rewrite as a fraction to help you.

Answers

4200/70
take out a zero on both top and bottom

420/7
Simplify

= 60

Hope this helps!
Brainliest and a like is much appreciated

Find the value of x so that the function has the given value. g(x)=8x-11;(x)=5

Answers

Answer:

29

Step-by-step explanation:

The value of y varies directly with x.If x=25 then y=20 .a. find the value y when x=8 b. find the value of x when y=32

Answers

is that two problems in one?

What is -2 1/2 times 3 3/4?

Answers

Answer:

-6 3/8

Step-by-step explanation:

Step-by-step explanation:

-2 1/2 mixed number change fraction= -3/-4 = 3/4.

3 3/4 = 15/12 = 5/4.

3/4 x 5/4= 15/16.

2. What is the x-intercept for the equation -2x + 5y = -10?

Answers

Answer:

Step-by-step explanation:

X intercept occurs when y = 0

-2x + 5(0) = -10

x = -10/-2

x = 5

Tyrone received the same score on each hand in a card game. His score on each hand was −18. He played 6 hands.

What was Tyrone's final score?

Enter your answer in the box.

points

Answers

-108 points

How?

Because -18×6=-108

------(Showed you some proof from above)

radius=12 round up to the nearest tenth

Answers

Answer:

12.0

Step-by-step explanation:

Answer:

452.4

Step-by-step explanation:

Lily has $2. 75 in her pocket, consisting of dimes and quarters. If there are 17 coins in all, how many of each does she have?.

Answers

Answer:

Lily has 7 Quarters and 10 Dimes

Step-by-step explanation:

Let's use pennies instead of $.

Let D and Q stand for the numbers of Dimes and Quarters, respectively.

We are told that there are 17 coins total:

  D + Q = 17

We also learn that they amount to 275 (pennies).  We can write that as:

10D + 25Q = 275  [Each D is worth 10 pennies, etc.]

We have two equations and two unknowns.  We can rearrange one equation to find the value of either of the unknowns, and then use that it the second equation.

I'll rearrange the first:  

 D + Q = 17

  D = 17 - Q

Now use this value of D in the second equation:

10D + 25Q = 275

10(17-Q) + 25Q = 275

170 - 10Q + 25 Q = 275

15Q = 105

Q = 7  :  7 Quarters.

Since D + Q = 17:

D + 7 = 17

D = 10 Dimes

==========================================

Let's check these results:

Q = 7 Quarters

D = 10 Dimes

1.  Is this 17 coins in total?  (7+10 = 17)  YES

2.  Does this add to $2.75?  (10*10) + (7*25) = 275 cents?

 (100 + 176) = 275 (cents)   YES

============================

Lily has 7 Quarters and 10 Dimes

Jared and Casey splurged on a special dinner for their anniversary. Their dinner cost $262.57,
and the local sales tax is 4%. If they left a 20% tip on the $262.57, how much in total did
they pay?

Answers

They paid a total of $325.5868

The product of the roots of the equation ax^2+x-24=0 is equal to -2 2/5. Find the value of a in the equation. Please help 100 points and branliest.

Answers

[tex]ax^2 + x -24 =0\\\\\text{If the roots are}~ \alpha ~ \text{and}~ \beta,\\\\\alpha \beta = -\dfrac{24}a \\\\\implies -2 \dfrac 25 = -\dfrac{24} a\\\\ \implies 2 \dfrac 25 = \dfrac{24} a\\\\\implies \dfrac{12}5 = \dfrac{24}a\\\\\implies 12a = 120\\\\\implies a =\dfrac{120}{12} =10[/tex]

To make a certain shade of paint, Anya mixed 2/3
cups of white paint with 2 and 2/3
cups of blue paint.

How many cups of blue paint should she mix with 3/4
cups of white paint to make the same shade?

Answers

Answer:

She needs 3 cups of white paint

Step-by-step explanation:

She has 1:4 ratio with the white and blue paint.

1/4:1

3/4:3

FIRST CORRECT ANSWER GETS BRAINLIEST:



In the African nation of Niger, French is the official language, while in Nigeria, English is the official language. Why would these two countries have different official languages that are European In

origin?

They were colonized by different European countries

They are historically at war with one another.

They needed a lingua franca to be able to communicate.

Answers

Step-by-step explanation:

They needed a lingua franca to be able to communicate.

2y=8x-6 Find the Slope

Answers

Answer:

Slope is 4

Step-by-step explanation:

2y=8x-6

divide by 2

y=4x-3

y=mx+b

m is slope

m=4

The slope is the number 4

The square root of 1.85

Answers

Answer:

around 1.36

Step-by-step explanation:

Identify the two irrational numbers

Answers

Answer:

Your answer is in picture hope it helps

Step-by-step explanation:

A line with a slope of 1/10 passes through the point (10, 1) What is its equation in slope-intercept form?

Answers

Hello there! :)

We are given the slope of the line: 1/10.We are also given the point that the line passes through.So, with the given information, we can use Point-Slope form:y-y1=m(x-x1)y-1=1/10(x-10)y-1=1/10x-1y=1/10xTherefore, that's the equation.

Hope it helps. Use the comment section to clarify any doubts.

Answered by

~A teen who adores helping others

#LetItSnow

Good luck.

the equation of line which passes through point  (10, 1)  and having slope 1/10 is y = x/10 + 0.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

y = mx + b

In which the coefficients are described as follows:

• The coefficient m is the slope of the function, representing the rate of change of the function.

• The coefficient b is the y-intercept of the function, representing the value of y when the function crosses the y-axis(x = 0).

Here, it is given that line passes though point (10,1) and having slope of 1/10.

Now, Let us find the equation of the line using point-slope equation of line :

(y-y₁) = m(x-x₁)

Substituting all the values in above equation to get the equation of line :

(y-1) = 1/10(x-10)

y - 1 = x/10 - 1

y = x/10 + 0

Therefore, the equation of line which passes through point  (10, 1)  and having slope 1/10 is y = x/10 + 0.

check and know more about line here :

brainly.com/question/14914699

#SPJ2

solve similar triangles (advanced)

Answers

Answer:  18/7

This approximates to 2.5714

=====================================================

Explanation:

The two triangles are similar. We can use the AA (angle angle) theorem to prove this claim.

Because [tex]\triangle ABC \sim \triangle ADE[/tex], this means:

side AB corresponds to side AD. The letters from AB are the first two letters of ABC while AD are the first two letters from ADE.side BC corresponds to DE. We have BC as the last two letters of ABC and DE the last two letters of ADE

As those bullet points above mention, the order of ABC and ADE matters to allow us to pair up the corresponding angles and corresponding sides.

From that, we can form the proportion below to solve for x

AB/AD = BC/DE

3/(3+4) = x/6

3/7 = x/6

3*6 = 7*x

18 = 7x

7x = 18

x = 18/7

You could convert this to the approximate decimal form 18/7 = 2.5714, but I think it's better to keep it as a fraction.

Please help! I highly appreciate it! :D

Answers

Here's some required measures !

1 ft = 12 inches

0.4 ft = 0.5 × 12 = 6 inches

Let's calculate its surface area ~

[tex] \sf2[(12 \times 10) + (11 \times 12) + (10 \times 11) ] - 2(7 \times 7) [/tex]

[tex] \sf2[120 + 132 + 110 ] - 2(49) [/tex]

[tex] \sf{2(362)} - 98[/tex]

[tex] \sf724 - 98[/tex]

[tex]6 \sf26 \: \: in {}^{2} [/tex]

please helpp im timed!!!​

Answers

Answer:

Answer A is correct

Step-by-step explanation:

what is 2^3 x 2^18 simplified

Answers

Answer:

2097152 or 2^21

Step-by-step explanation:

Answer: [tex]2^{21}[/tex]

Step-by-step explanation: Exponents are combined when simplifying a multiplication equation.

At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. If 100 sixth-grade students prefer hip hop music, how many sixth-grade students are at the school? Explain or show your reasoning.

Answers

Answer:

250 because 250 times .4 equals 100

Step-by-step explanation:

Estimate the quotient of 57.87 ÷ 5 A) 9 B) 10 C) 11 D) 12

Answers

Answer:

C, 11

Step-by-step explanation:

pls help me with math asap pls no links thx

Answers

Answer:

8

Step-by-step explanation:

Divide 192 by 24 and you'll get 8 classes per grade as the answer

Answer:

8 classes

Step-by-step explanation:

To find the minimum amount of classes, you divide 192 by 24 and you get 8 classes.

Joan is thinking of a number. She adds 5 and multiplies it by 4. She then subtracts n of her original number and divides by 20. She wants the answer to always be 1. What is the value of n?​

Answers

Answer:

5

Step-by-step explanation:

(4n+5)-n/20=1 cross multiply:(4n+5)-n=204n+5=20+n4n-n=20-53n=15Divide both sides by coefficient of nn=5
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