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3 years ago

If its right i’ll give brainliest!!

Mathematics

1 answer:

inessss [21]3 years ago

7 0

Answer:

6.5

Step-by-step explanation:

Square 42

$\sqrt{42}$ =6.48074....

rounded to the tenth is 6.5

Hope this helps!

You might be interested in

Me voy a comprar una barra de cortinas. Como vivo en un doceavo piso, me interesa saber cuál es la longitud máxima que puedo met

iren2701 [21]

Answer:

The maximum length of the bar I could fit in the elevator is 2.87 meters.

Step-by-step explanation:

The question in English is

I'm going to buy a curtain rod. Since I live on a twelfth floor, I'm interested in knowing the maximum length I can put in the elevator.

So I take out my pocket tape measure, which only measures up to a meter and I measure the floor which turns out to be a square of 1m x 1m, but for the height it doesn't give.

However, there's a sticker on the lift box that says it has a capacity of 2,500 litres.

With all this information, what is the maximum length of bar that would fit me in the elevator?

step 1

Find the height of the elevator

we know that

The elevator has a capacity of 2,500 litres.

$1\ m^3=1,000\ L$

$2,500\ L=2.5\ m^3$

The volume of the elevator is given by

$V=Bh$

where

B is the area of the base

h is the height of the elevator

we have

$B=(1)(1)=1\ m^2\\V=2.5\ m^3$

substitute

$2.5=(1)h\\h=2.5\ m$

step 2

Find the diagonal of the base of the elevator

Let

d ---> diagonal of the base of the elevator

Applying the Pythagorean Theorem

$d^2=b^2+b^2$

substitute

$d^2=1^2+1^2$

$d=\sqrt{2}\ m$

step 3

Find the diagonal of the rectangular prism (elevator)

Let

D ----> diagonal of the rectangular prism

d ---> diagonal of the base of elevator

h ----> height of the elevator

Applying the Pythagorean Theorem

$D^2=d^2+h^2$

substitute

$D^2=(\sqrt{2})^2+2.5^2$

$D^2=8.25\\D=2.87\ cm$

therefore

The maximum length of the bar I could fit in the elevator is 2.87 meters.

3 0

3 years ago

What is 23/20 as a mixed number

cupoosta [38]

Step-by-step explanation:

this is an improper fraction to make it mixed you have to find how many 20s are in 23

yea only one

so 1 is the whole number

then it is 1 3/20

you can again make it improper by multiplying denominator by 1 and adding 3

7 0

3 years ago

Read 2 more answers

The bank charged TENLEY $30 fee because her balance dropped below $0. She knows that she currently has an outstanding charge of

Korolek [52]

Answer:

Tenley has to deposited any amount from $50 and above.

Step-by-step explanation:

From the above question, we can deduce that if your bank balance is below 0, = - , you would be charged $30

Hence,

First she has to pay the bank charges of $30, and to prevent the outstanding charge of $19.95 for generating about charge she has to deposit any amount above $19.95

The amount she has to deposit is

$30 + (x > $19.95)

Assuming x is $20 and above

= $30 + $20 = $50

Hence, Tenley has to deposited any amount from $50 and above.

7 0

3 years ago

How do you find the least common multiple of 2 numbers? Preferably using the ladder method

g100num [7]

Hi,
Sorry, I don't use the ladder method, but I can show you how to find the least common multiple of 2 numbers using a different method:
Let's say we are finding the least common multiple of 3 and 9:

3: 3, 6, 9, 12, 15, 18
--
-------------------------------
9: 9, 18, 27, 36, 45, 54
--

All I did was list multiples of both the numbers till I found one that was common (however, in the example above, I listed a few extra)

Hope this helped
:)

8 0

3 years ago

X²-4=0 can you help me solve for x?

Nana76 [90]

Answer:

x = 2 & - 2

Step-by-step explanation:

We have to find the value of x from the given equation.

x²-4=0 is a quadratic equation, so it will have two values.

Step: Write the equation in simplest form.

x²-4=0

Step: Solve the problem by spiltting method.

x² - 4 = 0
x² - (2)² = 0

Step: Solve the problem with using algebraic formula.

x² - 2² = 0
(x - 2)(x + 2) = 0

Step : We have used a²-b² to solve the problem.

(x - 2)(x + 2) = 0
(x - 2)(x + 2) = 0
(x - 2)=0 or (x + 2) = 0
x = 2 & - 2

Therefore, the possible values of x are 2 & - 2.

7 0

3 years ago

Read 2 more answers