2 years ago

Q4.

Mathematics

2 answers:

xenn [34]2 years ago

3 0

Answer:

Step-by-step explanation:

loris [4]2 years ago

3 0

Answer:

£2478.37 this is what I got, I'm not too sure whether it is right though

Step-by-step explanation:

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Which answer is equivalent to<br> ??? Help please

grigory [225]

Answer:

$\large\boxed{\dfrac{36}{25}}$

Step-by-step explanation:

$\text{Use}\ a^{-n}=\dfrac{1}{a^n}\\\\\dfrac{5^{-2}\cdot9}{2^4\cdot4^{-3}}=(5^{-2}\cdot9):(2^4\cdot4^{-3})=\left(\dfrac{1}{5^2}\cdot9\right):\left(2^4\cdot(2^2)^{-3}\right)\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\left(\dfrac{1}{25}\cdot9\right):(2^4\cdot2^{-6})\\\\\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\dfrac{9}{25}:2^{4+(-6)}=\dfrac{9}{25}:2^{-2}=\dfrac{9}{25}:\dfrac{1}{2^2}=\dfrac{9}{25}:\dfrac{1}{4}=\dfrac{9}{25}\cdot\dfrac{4}{1}=\dfrac{36}{25}$

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3 years ago

The answer to the length of x is in mm. please help!

romanna [79]

Answer:

3.69 mm

Step-by-step explanation:

So it's a right triangle so you can use a^2+b^2=c^2

Plugging in what we know the equation becomes:

2.8^2+2.4^2=c^2 (C = x because x is the hypotenuse)

7.84+5.76=c^2

13.6=c^2

The square root of 3.68782 which rounds to 3.69

So x=3.69mm

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2 years ago

3(3y-4)=33 plz answer

Readme [11.4K]

Answer:

y=5

Step-by-step explanation:

3(3y-4)=33

9y-12=33

9y=45

y=5

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3 years ago

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What is the answer to 2x + 10 = 28

iragen [17]

Answer:

Step-by-step explanation:

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Find the volume of a specified cone. use 3.14 for pie, and round your answer to the nearest whole number. diameter = 5 cm height

myrzilka [38]

V = `1/3 * πr² * h

The half of a diameter is the radius. So, r = d/2. Substituting the values

V = 1/3 * (3.14)(5/2)² * 7
V = 45.79 or 46 cm³

The answer is letter B.

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2 years ago

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