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natulia [17]
3 years ago
9

I need help with these two. Please.

Mathematics
1 answer:
NISA [10]3 years ago
4 0
I believe #1 is d, idk #2
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Prove that for every pair of integers m and n, if n − m is even, then n 2 − m is also even. (You may freely use the fact that th
Romashka [77]

Answer with Step-by-step explanation:

We are given that  n and m are two integers

We have to prove that if n-m is even , then n^2-m is also even.

We know that sum of two odd numbers is even.Sum of an odd number and even number is odd.

Product of an odd number and even number is even.

Case 1.Suppose m and n are both even n=4 , m=2

4-2=2

(4)^2-2=14 =Even

Case 2.Suppose m odd and n odd

n=9,m=5

9-5=4

(9)^2-5=76=Even

Hence, proved.

7 0
3 years ago
PLSSS HELPpPP URGENT
lozanna [386]

Answer:

A.

Step-by-step explanation:

as u can see,the other acute angle is 43° and the other is also an acute angle and acute angles must not surpass until 80° meaning, the other acute angle is 47°

4 0
3 years ago
Read 2 more answers
Juan ordered 4 CDs for $48.96, which includes a $5.00 shipping charge. If each CD was the same price, what was the cost of each
Savatey [412]

Answer:

Each CD would be $10.99

Step-by-step explanation:

$48.96-5.00=43.96

43.96/4= 10.99

4 0
3 years ago
Read 2 more answers
Let X be a positive continuous random variable with density fXpxq. Let Y " lnpXq. (a) Find the density fY pyq of Y in terms of t
salantis [7]

Answer:

X density = fXpxq and

Y" =InpXq

Now to find Y density FYpyq interms of the density of X we compare the density of X with Y"

fX = In

And PXq =pxq

Thus replacing x with y,

PXq = pyq

(a) Hence the density of Y is FYpyq

(b) at p0, fYpyq =fYp0q= 0

At 5s, FYpyq =5

7 0
3 years ago
Read 2 more answers
Suppose that W and X are points on the number line. If WX=9 and W lies at 12, where would X be located? If there is more than on
Reika [66]
X = 3/4
Because WX=9 and W=12
12X=9
X=9/12 or 3/4
8 0
3 years ago
Read 2 more answers
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