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Sholpan [36]
3 years ago
9

Simplify 3r+n2-r+5-2n+2

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
8 0

2r+7+2n+n2

Because I combined the ones with like terms.

Free_Kalibri [48]3 years ago
3 0

Answer:2r-n2+7

Step-by-step explanation:combine all like terms

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Pls help me out on this ill will give brainiest for the best answer
Svetach [21]

Answer:

Step-by-step explanation:

butt

7 0
2 years ago
In the field of quality​ control, the science of statistics is often used to determine if a process is​ "out of​ control." Suppo
Usimov [2.4K]

Answer:

a) P=0.0225

b) P=0.057375

Step-by-step explanation:

From exercise we have that  15​% of items produced are defective, we conclude that  probabiity:

P=15/100

P=0.15

a)  We calculate the probabiity  that two items are​ defective:

P= 0.15 · 0.15

P=0.0225

b)  We calculate the probabiity  that  two  of  three items are​ defective:

P={3}_C_{2} · 0.85 · 0.15 · 0.15

P=\frac{3!}{2!(3-2)!} · 0.019125

P=3 · 0.019125

P=0.057375

6 0
3 years ago
Which of the following points is on the graph of y=x^2-4x+5 ?
Andrews [41]

Answer:

0,7

Step-by-step explanation:

6 0
3 years ago
The hypotenuse of a right triangle is 50 millimeters long. One leg of the right triangle is 30 millimeters long. What is the len
alexandr1967 [171]
First. we use the Pythagorean theorem:
a {}^{2} +  b {}^{2} =  c {}^{2}
Add the numbers in
{30}^{2}  +  {b}^{2}  =  {50}^{2}
start simplifying
{b}^{2}  = 1600
b = 40

So, the leg has a length of 40 mm.
6 0
3 years ago
Solve the equation for all values of x by completing the square.<br> 3x^2+177= -48x
GaryK [48]

Use the formula

(

b

2

)

2

in order to create a new term. Solve for

x

by using this term to complete the square.

Exact Form:

x

=

±

√

5

−

8

Decimal Form:

x

=

−

5.76393202

…

,

−

10.23606797

4 0
3 years ago
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