Can anyone help me with this math stuff? I will give you 15 points please help me

Mathematics

2 answers:

denpristay [2]3 years ago

4 0

Answer:

Step-by-step explanation:

irakobra [83]3 years ago

3 0

Answer:

i believe it is b

Step-by-step explanation:

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Two boxes are similar, the length of the side of the small box is 4cm, the length of the side of the big box is 16cm. The volume

MariettaO [177]

Answer:

80cm^3

Step-by-step explanation:

16/4 = 4

This means that the scale factor = 4

320cm^3 = Volume of BB

BB/4 = Volume of SB

320/4 = 80

Therefore, the volume of the small box = 80cm^3.

6 0

3 years ago

Please answer with explanation, I don't understand.<br><br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E2-14x%2B49%7D%20%3Dx

Crank

Answer: x ≥ 7

Step-by-step explanation:

You have to square both sides of the equation. You can manipulate an equation or function any way imaginable as long as it is done equally and helps the problem become easier. If we square this, the radical will cancel and we will get two trinomials equal to each other.

$x^2-14x+49=(x-7)^2\\x^2-14x+49=x^2-14x+49$

We can see the two expressions are exactly equal to each other. All real numbers are solutions, besides a few. These few are when the radical is equal to a negative number. So lets set up an inequality stating that the radical must be greater than or equal to 0.

$x^2-14x+49\geq 0\\(x-7)^2 \geq 0\\x \geq 7$

6 0

2 years ago

Is -55 a natural number, whole number, integers, or irrational numbers

Rainbow [258]

-55 is an integer.
It is not a whole number because it is negative.
It is not a natural number because it is not a whole number.
It is not irrational because it can be written as a fraction $-\frac{55}{1}$ .