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MrRissso [65]
3 years ago
7

Evaluate u^2 -2u+4 when u= -3

Mathematics
1 answer:
OLga [1]3 years ago
6 0

Answer:

Step-by-step explanation: Sub -3 into where all the u’s are. So it would be

(-3)^2 - 2(-3) + 4

Which would equal 19

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Using Pythagorean theorem

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The second one

Step-by-step explanation:

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This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out
Dmitry [639]
  • Base be y

ATQ

\\ \sf\longmapsto xy=6050\dots 1

\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2

Now

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\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy

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Can someone explain how to answer this
olya-2409 [2.1K]

Answer:

q= -ck+dp/

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Step-by-step explanation:

Step 1:

Multiply both sides by p.

dp=ck−kq+pq

Step 2:

Flip the equation.

ck−kq+pq=dp

Step 3:

Add -ck to both sides.

−kq+pq=−ck+dp

Step 4:

Factor out variable q.

q(−k+p)=−ck+dp

Step 5:

Divide both sides by -k+p.

q= -ck+dp/

-k+d

Sorry if it's all letters and u needed numbers.

7 0
3 years ago
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