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Assoli18 [71]
3 years ago
5

Please help it'll mean a lot :) <33​

Mathematics
1 answer:
gavmur [86]3 years ago
3 0
Your answer is C because 12•10= 12
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A rectangular box has the dimensions shown in the diagram. The volume of the box is given by the function V(x) = x3 – 4x, where
marta [7]

Answer:

Height =3

Step-by-step explanation:

Given

Length = x + 2

Width = x - 2

Height = x

Volume = 15

Required

Find the height

The volume is calculated as thus:

Volume = Length * Width * Height

This gives

15 = (x + 2) * (x - 2) * x

Apply difference of two squares

15 =(x^2 - 4 ) * x

15 = x^3 - 4x

Subtract 15 from both sides

x^3 - 4x - 15 = 0

Using a calculator to factorize, we have:

(x-3)(x^2+3x+5) = 0

Split

x - 3 = 0 or x^2 + 3x + 5 = 0

x = 3 or  x^2 + 3x + 5 = 0

x has complex roots for x^2 + 3x + 5 = 0

Hence:

x = 3

Recall that:

Height = x

Height =3

3 0
3 years ago
Omg please help me ASAP I reallly need my 100 backkkkkkkk
serg [7]
19, cuz 4x19 is 76 and 72<76
5 0
3 years ago
Read 2 more answers
Translate the following statement into a mathematical equation:
Karolina [17]
Its the second one: 5n-3=12
5 0
4 years ago
Saira is using the formula for the area of a circle to determine the value of .
klio [65]

For this problem, we just have to use the values we're given to calculate the approximate value of pi.

The formula presented is

\pi=Ar^{-2}

When you have a negative exponent, we can use the following property

a^{-b}=\frac{1}{a^b}

Using this property, our problem turns out to be

\pi=\frac{A}{r^2}

Now, we just need to plug the given values on this equation

\pi=\frac{50.265}{4^2}=3.1415625\approx3.142

The approximated value for pi is 3.142.

5 0
1 year ago
What is value of<br> X+8<br> Enter your answer in the box<br> 2x-5<br> B<br> 10<br> 14<br> Plz help
Vikentia [17]

Answer:

not 100% but i think x may be 23.5

Step-by-step explanation:

6 0
3 years ago
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