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Zina [86]
3 years ago
15

What is this (x+3)(x+5) help really stuck

Mathematics
1 answer:
just olya [345]3 years ago
8 0
That's the factored form of   ( x² + 8x + 15 ).
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1. Find the value of x<br><br> A. 7<br> B. 4<br> C. 5<br> D. 6
Damm [24]
A I believe, sorry if I’m wrong
4 0
2 years ago
A rectangle has a perimeter of 32 in. find the length and width of the rectangle under which the area is the largest. follow the
Dafna1 [17]
Let width and length be x and y respectively.
Perimeter (32in) =2x+2y=> 16=x+y => y=16-x
Area, A = xy = x(16-x) = 16x-x^2
The function to maximize is area: A=16 x-x^2
For maximum area, the first derivative of A =0 => A'=16-2x =0
Solving for x: 16-2x=0 =>2x=16 => x=8 in
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5 0
3 years ago
3x-8&lt;23 and -4x+26&gt;6
Papessa [141]

Answer:

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Step-by-step explanation:

3x-8<23

Add 8 to both sides

3x<31

Then divide 3 to both sides

x<31/3


and -4x+26>6

Minus 26 to both sides

-4x>-20

You divide -4 to both sides

Keep in mind that everytime you divide a negative the inequality will change so > will be <

x<5

3 0
3 years ago
Nicholas wants to buy a new computer that is on sale for $899. His parents will loan him the money if he repays them. He has $22
Afina-wow [57]

Answer:

20 days

Step-by-step explanation:

899- 225= 674

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which you would round it up to 20 because he would have to work the extra day because you need more than less.

8 0
3 years ago
Read 2 more answers
Calculate the Highest common factor of 130,260,390​
qwelly [4]

the Highest common factor of 130,260,390 = 130

130 = 2⋅5⋅13

260 = 2⋅2⋅5⋅13

390 = 2⋅3⋅5⋅13

Common multipliers (130; 260; 390): 2, 5, 13

Now to find the highest Common factor you need to multiply the common factors

Answer: (130 ; 260 ; 390) = 2 ∙ 5 ∙ 13 = 130

4 0
2 years ago
Read 2 more answers
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