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Ratling [72]
3 years ago
14

Todd has a new spook of wire like the one pictured. He needs 48 pieces of wire, each 22 feet long. He is estimates that he needs

50:20=1000 feet, and he concludes that 1 spool with 1000 feet will be enough
Mathematics
2 answers:
lilavasa [31]3 years ago
8 0

Answer:

true

Step-by-step explanation:

but where is pic

Degger [83]3 years ago
3 0

Answer: 1000 ft will not be enough.

Step-by-step explanation:

He needs 48 pieces of wire, and each piece of wire must be 22 feet long.

The math that he does is

50*20 instead of 48*22 because it may be easier to do:

But in the math of Todd, he adds two times the smallest number

50*20 = (48 + 2)(22 -2) = 48*22 + 2*22 - 2*48

where 48*22 is the exact number, and the other twos are the errors of the estimation, you can see that the amount that he underestimates (2*48) is bigger than the amount that he overestimates (2*22) so the result that he is obtaining in the multiplication 50*20 is smaller than the one that he actually needs, so 1000ft of cable will not be enough.

You also can do the multiplication: 48*22 = 1056 feet, wich is what he actually needs.

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Ede4ka [16]

Answer:

1,2,4,5,8,10,20,25,40,50,10,125,200,250,500,1000

Step-by-step explanation:

prime factorization is

1000=2*2*2*5*5*5

4 0
2 years ago
Verbalize 2(n^3+3n^2)=4n
Arada [10]

Answer:

A number cubed plus a 3 times a number squared all multiplied by 2 is equal to 4 times a number.

Step-by-step explanation:

Since we can't say "in parenthesis", we will have to say the expressions in the parenthesis first and then say "all multiplied by 2" to express parenthesis in word form. The rest are pretty straight forward.

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3 years ago
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 99​% of all males.​ (accommodating 100
Helga [31]
Hip Breadths and Aircraft Seats
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 98% of all males. (Accommodating 100% of males would be too expensive.) Men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 1.0 in. Find P 98. That is, find the hip breadth for men that separates the smallest 98% from the largest 2%.
7 0
3 years ago
I'm having trouble figuring out how I could go about this. Can someone work it out then explain so that I know how to do this ne
skad [1K]

Answer:

RT-ST=QS-ST, because subtracting the same quantity from two lines that have been stated to be equal.

Therefore RS=TQ

Angle R=Angle Q, because it is an isosceles triangle

Triangle AR

S is congruent to ATQ.

AT=AS

Because TAS is isosceles, angles 5 and 6 are equal.

Therefore, angles 4 and 7 are equal, because they are supplementary angles of the same angle.

And angles 1 and 3 are equal, because the other two angles in the triangle are equal.

The triangles RAT and QAS are congruent with SAS.

Step-by-step explanation: Can u gimme brain plz!

6 0
3 years ago
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Allushta [10]

Answer:

−1/3y+−4/3

Step-by-step explanation:

We need to solve for x.

How? Easy! :D

Step one: Flip the equation. (In class we call it the 'flip-flop'.) When you do this, you should have your equation look like this:

−3x−4=y

Step two: Add 4 to both sides of the equation. When you do this step, your problem should look like this:

−3x−4+4=y+4

−3x=y+4

Step three: Divide both sides by -3.

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Step four: Wrap-up. What the answer is.

x = -1/3y + -4/3

Final step: OUR ANSWER!

x = -1/3 + -4/3

Hope this helped! :D

5 0
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