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3 years ago

A square pyramid has a base side length of 20.4cm and a height of 18.2cm which square pyramid is similar

Mathematics

1 answer:

Maksim231197 [3]3 years ago

7 0

Answer:

C) base side length = 30.6 cm, height = 27.3 cm

Step-by-step explanation:

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8 wholes and 4/6 minus 2 wholes and 5/6 is what

podryga [215]

The answer to your problem should be 5 wholes and 5/6 since the denominators are the same just add 6 more pieces to 4/6 to get an improper fraction then subtract to get the answer. Hope this helps and have a fabulous day!

5 0

3 years ago

Ilia_Sergeevich [38]

Answer:

D. y = |x| – 5.5

Step-by-step explanation:

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3 years ago

A pair of trainers cost £60.<br> In a sale they are reduced by 40%. What is the new price?

elena55 [62]

Answer:

Step-by-step explanation:

40 % of 60 = 24

60-24=36

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2 years ago

Solve the equation: x-10 - 2x + 7 = 8 + x - 10 - 3x

Minchanka [31]

Answer: If you're looking for the value of x, it's 1.

Step-by-step explanation:

Add the numbers. x-10-2x+7=8+x-10-3x--->x-3-2x=8+x-10-3x

Combine like terms. x-3-2x=8+x-10-3x ---> -x-3=8+x-10-3x

Subtract the numbers.-x-3=8+x-10-3x---> -x-3=-2+x-3x

Combine like terms. -x-3=-2+-3x---> -x-3=-2-2x

Rearrange terms. -x-3=-2-2x---> -x-3=-2x-2

Hope that helps!

4 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=4x%5E%7B2%7D%20%2B4x%2B1%3D0" id="TexFormula1" title="4x^{2} +4x+1=0" alt="4x^{2} +4x+1=0" ali

Arturiano [62]

$D=b^2-4ac\\D=4^2-4(4)(1)\\D=16-16\\D=0$

Meaning there's only 1 real root, complete the square and you get the answer.

$(x+y)^2=x^2+2xy+y^2$

We're going to use this formula, so if x² = 4x² then x = 2x

and if y² = 1 then y = 1

Straight to formula

$(2x+1)^2=0\\x=-\frac{1}{2}$

Because (2x+1)² is basically (2x+1)(2x+1), we get the same value of x.

So the answer is x = -1/2

(When D>0, there are 2 real roots.)

(When D=0, there are only 1 real root.)

(When D<0, there are no real roots, but 2 complex roots.)

8 0

3 years ago