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3 years ago

Quick help with math please? 50 points.

Mathematics

2 answers:

Sunny_sXe [5.5K]3 years ago

8 0

y≤-2x +2

y< 1/3x +2

This is the correct answer.

Elden [556K]3 years ago

7 0

y≤-2x +2

y< 1/3x +2

this is the answer to this

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Simplify the following expressions ( use distributed property )

oksian1 [2.3K]

-9+3x

2(9-3x)/-2

-(9-3x)

-9+3x

Brainliest?

6 0

3 years ago

Mai wants to make an open top box by cutting out corners of a square piece of cardboard and folding up the sides. The cardboard

Bumek [7]

Answer:

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

The domain for x is all real numbers greater than zero and less than 5 com

Step-by-step explanation:

The question is

What is the volume of the open top box as a function of the side length x in cm of the square cutouts?

see the attached figure to better understand the problem

Let

x -----> the side length in cm of the square cutouts

we know that

The volume of the open top box is

$V=LWH$

we have

$L=(10-2x)\ cm$

$W=(10-2x)\ cm$

$H=x)\ cm$

substitute

$V(x)=(10-2x)(10-2x)x\\\\V(x)=(100-40x+4x^{2})x\\\\V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

Find the domain for x

we know that

$(10-2x) > 0\\10> 2x\\ 5 > x\\x < 5\ cm$

The domain is the interval (0,5)

The domain is all real numbers greater than zero and less than 5 cm

therefore

The volume of the open top box as a function of the side length x in cm of the square cutouts is

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

5 0

3 years ago

How old is abhasra if she was at least 46 years old five years ago

adoni [48]

Answer:

She is at least 51. She could be older.

8 0

2 years ago

Read 2 more answers

Determine the discriminant for the given equation x^2+4x+5=0. Then describe the roots(how many and what type).

Fed [463]

Discriminant = b^2 - 4ac, where a, b and c come from the form of the quadratic equation as ax^2 + bx + c

Discriminant = (4)^2 - 4(1)(5)
= 16 - 20
= -4

-4 < 0, therefor there are no roots

(If the discriminant = 0, then there is one root
If the discriminant > 0, there are two roots, and if it is a perfect square (eg. 4, 9, 16, etc.) then there are two rational roots
If the discriminant < 0, there are no roots)

3 0

3 years ago

What is the scale factor from ADEF to AABC? 10 6 20 12 А 7 14

tigry1 [53]

Answer:

The scale factor is 1/2

Step-by-step explanation:

Given

$\triangle DE F$ and $\triangle ABC$