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Ket [755]
3 years ago
13

Always, sometimes or never true: The sum of a positive integer and negative integer is positive.

Mathematics
2 answers:
marta [7]3 years ago
7 0
This would be always true because the positive number would cancel the negative number out.
o-na [289]3 years ago
4 0

Answer:

sometimes true ( hopefully I am right)

Step-by-step explanation:

Adding two positive integers always gives you a positive sum; adding two negative integers always gives you a negative sum so find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract those values.

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PLS ANSWER ASAP <br> simplify (-8^3)^2
Tanya [424]

Answer:

(-8^3)^2

=-8^2*3

=-8^6

=1/8^6

=1/262144

Step-by-step explanation:

7 0
3 years ago
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34°, one angle that measured 134°, and one angle that is 12°. What triangle is it
Vladimir [108]

Answer:

It is an obtuse angle!

Step-by-step explanation:

5 0
3 years ago
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Sorry i know it is too blurry but can u at least try
raketka [301]

Answer:

Step-by-step explanation:

Draw your figures the same way as I did, and see if you understand the explanations before writing them down. It's most important to learn from your work :)

7 0
3 years ago
Six identical squares are cut from the corners and edges of an 80 cm by 50 cm cardboard rectangle. the remaining piece is folded
Anna11 [10]
Check the picture.

let the length of a side of each of the squares removed be x.

The box formed will have dimensions: 80-2x, 50-2x, x(the height)

So the volume can be expressed as a function of x as follows:

f(x)=(80-2x)(50-2x)x=[4000-160x-100x+4 x^{2} ]x=(4 x^{2}-260x+4000)x

so f(x)=4 x^{3}-260x^{2}+4000x

the solutions of f'(x)=0 gives the inflection points, so the candidates for maxima points,

f'(x)=12x^{2}-520 x +4000=0

solving the quadratic equation, either by a calculator, graphing software, or by other algebraic methods as the discriminant formula, we find the solutions

x=10 and x=33.333

plug in f(x) these values to see which greater:

f(10)=(80-20)(50-20)10=60*30*10=18000 cm cubed

f(33.333)=(80-66.666)(50-66.666)33.333= which is negative because (50-66.666)<0



Answer: 18000 cm cubed

5 0
2 years ago
Read 2 more answers
Could someone help me ASAP, thanks !!
Rashid [163]

Answer:

I think this is the right answer but last two signs are incorrect

Hope this will help

6 0
3 years ago
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