Number 28 plz?????!!?!???

Mathematics

1 answer:

Misha Larkins [42]3 years ago

5 0

We are asked whether 8^2 - 4 divided by 2 + 2 = 65.
64 - 4 divided by 4 is
60 div by 4 = 15. No, 65 is not correct.

Let's try again, following Order of Operations rules:

Anything within parentheses is done first, followed by exponentiation. After that it's mult. or div., and after that it's addn. or subtr.

8^2 - 4 divided by 2 + 2 = 65
Do 8^2 first; correct result is 64.
"-4 div by 2" is -2; adding 2 results in zero.
Then we have 64 = 65 (which is false.
Are you positive that the original problem included a '65,' not a '64?'

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31 - n = -27 solve for x?

ikadub [295]

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6 0

3 years ago

(ii) The scale 1 cm represents 50m can be written in the form 1:k.

vovikov84 [41]

Answer:

k = 50

Step-by-step explanation:

The scale 1 cm represents 50m

It means that 1 cm length of pictorial representation of any obejct is equivalent to 50m in reality.

In scale terms it can be represented in ratio form of a:b

where

a is the length of picture and b is actual length

here length of pictorial representation is 1 cm

and 50m is actual length

thus scale will be 1:50

But is given that The scale 1 cm represents 50m can be written in the form 1:k.

1:50 is same as 1:k

thus

1:50 = 1:k

we know that in ratio

if a:b = c:d

then

a= c and b = d

Thus,

k = 50 Answer

8 0

3 years ago

the graph of F(x), shown below, has the same shape as the graph of G(x)=x^2. but it is shifted up 4 units and to the right 2 uni

ale4655 [162]

Answer:

Step-by-step explanation:

The graph of $y=x^2$ in vertex form is $y=(x-h)^2+k$ where h and k, the vertex, is (0, 0). If we shift the parabola right or left, or up or down, the h and k values take on that reflection. If we move up 4, k goes from a value of 0 to a value of 4; if we move right 2 units, h goes from a value of 0 to a value of 2. Putting that together in work (aka vertex) form: