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Sergeu [11.5K]
3 years ago
15

Can someone explain this to me pls

Mathematics
2 answers:
Nostrana [21]3 years ago
6 0
These two lines are parallel lines, then the zigzag line acts as a 'transversal' , so i would add 75+120+40+90+x+20= 180

345 + x =180

x = -165



hope this helps!!  
just olya [345]3 years ago
4 0
You are solving for x, correct?

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Only 2/17 of the teachers were sciolists. If 3000 were not sciolists how many teachers were there in all
Juli2301 [7.4K]
1-\frac{2}{17}=\frac{15}{17}\\
\frac{15}{17}--3000\\
1\ \ --x\\
x=3400
5 0
3 years ago
Read 2 more answers
Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 144 in. Find
mr Goodwill [35]

Answer:

The volume in such a package is 27648 in³

Step-by-step explanation:

Consider the provided information.

Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 144 in.

Let the dimension are x by x by y.

Where x is the variable for the square base package and y is the variable for length.

Thus l=x, b=x and h=y

Then the volume of the box is: V(x)=x^2y (∵V=lbh)

The maximum combined length and girth is 144.

Therefore, 4x+y=144

y=144-4x

Substitute the value of y in volume of the box.

V(x)=x^2(144-4x)

V(x)=144x^2-4x^3

V'(x)=288x-12x^2

Substitute V'(x)=0.

0=288x-12x^2

12x(24-x)=0

x=0\ or\ x=24

Now apply second derivative test.

V''(x)=288-24x

V''(0)=288-24(0)>0 (Min)

V''(24)=288-24(24) (Max)

Hence, the maximum volume is at x=24

If x=24 then y=144-4(24)=48

Substituting value of x = 24 and y = 48 V(x)=x^2y gives 27648.

Hence, the volume in such a package is 27648 in³

5 0
3 years ago
Help Me Solve This
olasank [31]
Let us assume the number of cd's you can buy = x
Cost of an used CD = $4.25
Total amount of money that you have = $1500
Then
<span>x ≤ 15 − 4.25
</span>x ≤  10.75

I hope the procedure is clear enough for you to understand. I also hope that this is the answer that you were looking for and the answer has actually come to your desired help.
3 0
3 years ago
Which integer is closest to 0 on the number line?
IrinaVladis [17]

An integer is close to zero if it is "small".

By small, we mean that it is small in absolute value. In fact, for any given distance d, there are two integers that are d units away from zero: d and -d.

So, for example, -6 is close to zero than 8, because -6 is six units away from zero, while 8 is eight units away from zero.

So, the answer is B, -8, because it is 8 units away from zero. The other options A, C and D are, respectively, 12, 10 and 14 units away from zero.

8 0
3 years ago
A couple wants to install a square mirror that has an area 500 in.². To the nearest 10th of an inch what length of wood trim is
Alenkinab [10]
S·S=500. S²=500. S=√500. S=22.36. 22.4 inches for 1 side, 22.4(4)=89.6, 89.6 for all 4 :)
7 0
3 years ago
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