2 years ago

Plzzzzzzzz help fast im slow

Mathematics

2 answers:

zmey [24]2 years ago

7 0

Answer:

Step-by-step explanation:

netineya [11]2 years ago

5 0

Answer:

the first one

Step-by-step explanation:

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Will mark brainliest! Please help!

ValentinkaMS [17]

Answer:

The dimensions are:

$3(2x+1)$ by $(7x+5)$

Step-by-step explanation:

The area of the rectangle is given as

$A=42x^2+51x+15$

The factored form of this quadratic trinomial gives the dimensions of the rectangle.

We factor 3 first to obtain;

$A=3(14x^2+17x+5)$

We split the middle term to get;

$A=3(14x^2+10x+7x+5)$

We factor within the parenthesis to get;

$A=3(2x(7x+5)+1(7x+5))$

We factor further to get;

$A=3(2x+1)(7x+5)$

The dimensions are:

$3(2x+1)$ by $(7x+5)$

Then the perimeter will be

$2(6x+3+7x+5)=26x+16\:\:\:\boxed{\sqrt{} }$

4 0

3 years ago

Fritz is in charge of buying uniform for his baseball team. one uniform costs $20. there are 14 players on his team. how much wi

tekilochka [14]

If 1 uniform costs $ 20....and there are 14 players....then Fritz would spend
(20 x 14) = $ 280.....thats if each player only gets 1 uniform .

8 0

3 years ago

Do the ratios 2:4 and 5:10 form a proportion?<br> yes or no

Kisachek [45]

Answer:

Yes, the ratios do form a proportion.

5 0

2 years ago

Evaluate 3/5r +5/8swhen r =14 and s =8

Illusion [34]

Step-by-step explanation:

14×5=70

8×8=64

(3/70) + (5/64)

= (3×64)+(5×70)

----‐------------------

70×64

= (192+350)/448

=542/448

= 271/224

5 0

3 years ago

I need to know the answer

Nesterboy [21]

Answer in the attachment.

3 0

3 years ago