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2 years ago

Change the signs as needed and solve. Type your answer in the box. Do not use any spaces.

Mathematics

2 answers:

Delvig [45]2 years ago

7 0

-13 because if you 33 and subtract 46 you would have -13 sorry dont really know how to explain

murzikaleks [220]2 years ago

3 0

Answer:

Explanation:

=(+33) -(-46)

=33 - (-46)

And since two negatives make a positive...

=33 +46

=79

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A plane is flying within sight of the Gateway Arch in St. Louis, Missouri, at an elevation of 30,000 ft. The pilot would like to

Maurinko [17]

Answer:

X = 33,669.78 ft

Y = 15285.76 ft

Step-by-step explanation:

Given data:

let x be the distance btwn arch and plane

and y be the distance btwn ground point and arch y

we know that

$cos\theta = \frac{adjacent}{hypotaneous}$

$cos(27) = \frac{30,000}{x}$

xcos27 = 30000

$x = \frac{30000}{cos 27}$

x = 33,669.78 ft

b) we knwo that

$tan \theta = \frac{opposite}{adjacent}$

$tan 27 = \frac{y}{30000}$

y = tan(27) (30000)

y = 15285.76 ft

8 0

3 years ago

Triangles ABC and DEF have the following characteristics:

hram777 [196]

Step-by-step explanation:

AAS can be used prove that △ABC ≅ △DEF

8 0

3 years ago

Read 2 more answers

A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

lara [203]

Answer:

$y=7x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

$k=y/x$

For (2,14) ----> $k=14/2=7$

For (4,28) ----> $k=28/4=7$

the value of $k=7$

therefore

The equation is

$y=7x$

3 0

3 years ago

Read 2 more answers

Help ASAP pls :) brainly to whoever has the right answer first :D

Fed [463]

Answer:

0.02 (rational)

2 (rational)

Square root of 2 (irrational)

Square root 1/2 (irrational)

Step-by-step explanation:

Rational numbers are numbers that can be in form of a/b such that a and b are not zeros. In other words, a and b are integers ranging from 1 to infinity.

Conversely, irrational numbers are numbers that are endless and are non repeating digits after decimal point.

Thus, from the questions above;

$0.02 = \frac{2}{100} = rational \: number$

$2 = \frac{2}{1} = rational \: number$

$\sqrt{2} = 1.41421356 = irrational \: number$

$\sqrt{ \frac{1}{2} } = 0.70710678 = irrational \: number$

6 0

3 years ago

ABC is reflected across x = 1 and y = -3. What are the coordinates of the reflection image of B after both reflections?A. (-7, -

Dima020 [189]

Answer:

The correct option is C.

Step-by-step explanation:

From the given figure it is noticed that the coordinates of B are (-5,-7).

If ABC is reflected across x = 1, then

$(x,y)\rightarrow(1-(x-1),y)$

$(x,y)\rightarrow(2-x,y)$

$(-5,-7)\rightarrow(2+5,-7)$

$(-5,-7)\rightarrow(7,-7)$

If ABC is reflected across y =-3.

$(x,y)\rightarrow(x,-3-(y-(-3)))$

$(x,y)\rightarrow(x,-6-y)$

$(7,-7)\rightarrow(7,-6-(-7))$

$(7,-7)\rightarrow(7,1)$

Therefore option C is correct.

8 0

3 years ago