1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
2 years ago
5

Compute the scale factor of the new scale drawing (SD2) to the first scale drawing (SD1) using the information from the given sc

ale drawings. ​

Mathematics
1 answer:
Delicious77 [7]2 years ago
5 0

Answer:

  a) 1/48

  b) 36/1

Step-by-step explanation:

The scale factor from 2nd to 1st is the ratio of the scale factors.

(a) (1/280)/(6/35) = (1/280)(35/6) = 35/(35·8·6) = 1/48

__

(b) (3)/(1/12) = 3·12/1 = 36/1

You might be interested in
Consider the quadratic function:
Mice21 [21]

Answer:

vertex is (4,-25)

Step-by-step explanation:

f(x) = x^2 - 8x - 9

To find out the vertex we use formula

x=\frac{-b}{2a}

From the given f(x), the value of a=1, b=-8 and c=-9

Plug in the values in the formula

x=\frac{-(-8)}{2(1)}

x=4

Now find the value of y

plug in 4 for x in f(x)

f(4) = 4^2 - 8(4)- 9=-25

The value of y is -25

The vertex is (4,-25)

3 0
3 years ago
Read 2 more answers
If x = 45, then<br> is between_<br> 4 and 5<br> 6 and 7<br> 22 and 23<br> 44 and 46
MrRa [10]
Im confused on what your trying to ask...
6 0
3 years ago
52 ( Blank ) 2 ( Blank ) 31 = 73
nadezda [96]

Answer:

52 × 2 - 31 = 73

Step-by-step explanation:

Use PEMDAS

The way I remember is like this..

Please (Parentheses)

Excuse (Exponents)

My (Multiication)

Dear (Division)

Aunt (Addition)

Sally (Subtraction)

Multiply 52 × 2

which gives you 104.

Then subtract 31 from 101

and that will give you 73.

6 0
3 years ago
What is the inverse of Y=-5x-7
Pepsi [2]

Answer:y = - 5x - 7

Step-by-step explanation:The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

here m = - 5 and b = - 7, hence

y = - 5x - 7 ← equation of line

7 0
3 years ago
two points on the same side of a tree are 65 feet apart. the angles of elevation of the top the tree are 21 19 from one point an
zloy xaker [14]
The question is find the height of the tree, given that at two points 65 feet apart on the same side of the tree and in line with it, the angles of elevaton of the top of the tree are  21° 19' and 16°20'.

1) Convert the angles to decimal form:

19' * 1°/60' = 0.32° => 21° 19' = 21.32°

20' * 1°/60' = 0.33° => 16° 20' = 16.33°

2) Deduce the trigonometric ratios from the verbal information.

You can form a triangle with

- horizontal leg  x + 65 feet
- elevation angle 16.33°
- vertical leg height of the tree, h

=> trigonometric ratio: tan (16.33) = h /( x + 65) => h = (x+65) * tan(16.33)

You can form a second triangle with:

-  horizontal leg x
- elevation angle 21.32°
- vertical leg height of the tree, h
 
=> trigonometric ratio: tan(21.32) = h / x  => h = x * tan(21.32)

Now equal the two expressions for h:

(x+65)*tan(16.33) = x*tan(21.32)

=> x*tan(16.33) + 65*tan(16.33) = x*tan(21.32)
=> x*tan(21.32) - x*tan(16.33) = 65*tan(16.33)
=> x = 65*tan(16.33) / [ tan(21.32) - tan(16.33) ] = 195.73 feet

=> h = 195.73 * tan(21.32) = 76.39 feet.

Answer: 76.39 feet
5 0
3 years ago
Other questions:
  • Rewrite each equation as a system of equations excluding the value(s) of xx that lead to a denominator of zero. Then, solve the
    6·1 answer
  • Please help please!!!!!
    10·1 answer
  • If a man earns $30,000 a year, how much is his weekly pay? (Round your
    7·1 answer
  • The product of 10 and half of A
    9·1 answer
  • Math help pls!! answer choices are 17.1 , 3.5 , 8.4 , and 1.5
    8·1 answer
  • $18 interest on a $ 90 purchase what is the interest rate
    8·1 answer
  • Can someone help me figure this out?
    11·2 answers
  • Find x.
    7·1 answer
  • In 8 minutes, Susan can type 64 words.<br> What is her rate in words per minute?
    9·2 answers
  • What integer divided by -5 equals -60?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!