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Drupady [299]
3 years ago
14

a architect uses a scale drawing with a scale factor of 1 cm:20 feet. if a actually building is 120 feet tall how many centimete

rs would it e
Mathematics
1 answer:
agasfer [191]3 years ago
5 0
The answer is 6

Explanation:
1 cm : 20 feet
y cm : 120 feet
(We will use cross multiplication)
20y = 120*1
20y/ 20 = 120/20. (left-side: the 20’s will be cancelled)
y= 120/20
y= 6
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Question 4: *<br> What are the solutions to the equation 4x2 – 52x + 169 = 121?
Rasek [7]

Answer:

1.0769

Step-by-step explanation:

multiply 4x2 to get 8

move -52x over the equal sign to make it 52x

so we get something like this: 8 + 169 = 121 + 52x

also move 121 over the equal sign to make it -121

Like this: 8 + 169 - 121 = 52x

Now when you simply, you will get 56 = 52x

Divide both sides by 52

Final answer is 1.0769

8 0
3 years ago
What is 20% by 37 decreased
Ghella [55]

Answer:

<u><em>37 decreased by 20% is </em></u><u><em>29.6.</em></u>

Step-by-step explanation:

<u><em>To do this, what we do is simply </em></u><u><em>take 20% of 37 and subtract it from 37.</em></u>

<u><em>20% of 37.</em></u><u><em> A trick to easily figure this out is </em></u><u><em>multipling 37 by 20 and dividing by 100.</em></u>

<u><em>37*20 = 740</em></u>

<u><em>740 / 100 = 7.40</em></u>

<u><em>37 - 7.40 = 29.6</em></u>

<u><em>37 decreased by 20% is </em></u><u><em>29.6.</em></u>

6 0
2 years ago
Read 2 more answers
Which statement is true about the function f(x)= squared root negative x?
Liono4ka [1.6K]
The answer is the first option: it has the same domain as the function f(x) = - √(-x).

The domain is the set of x-values for which the function is defined.

The square root function is defined only for zero and positve values.

- x is positive when x negative.

So the domain for - √(-x) and √(-x) are the same: x less than or equal to zero.
4 0
3 years ago
What is the total number of outcomes for choosing a numbered card from 1 to 10 and a number on a
ycow [4]

the total number of out comes would be 16^2 or 256.

some extra things...

A numbered card from 1 - 10 would be 1 over 10 or 10% chance of picking correctly.

a number cube from 1 - 6 would be 1 over 6 or 16.66% chance of picking correctly.

if you want to combine these and pick one from both, it becomes 1 over 16 or 6.25% chance of picking both correctly.

7 0
2 years ago
Angel beats it's wings about 53 times each second. about how many times does Angel beat in 5 seconds
Vesna [10]
In 1 second it beats about 53 times In 5 seconds it will beat about (53/1*5) times = 265 times
7 0
3 years ago
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