3 years ago

Freeeeeeeeeeeeeeeeeeeeeeer pointk

Mathematics

1 answer:

tigry1 [53]3 years ago

7 0

welp thank you for this

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(60 points)

natka813 [3]

Answer:

Step-by-step explanation:

$2.\\(a-b)^2=a^2-2ab+b^2\\\\x^2-16x=-8\\\\x^2-2(x)(8)=-8\\\\\text{We have}\ 2ab=2(x)(8).\ \text{Therefore}\ b=8.\\\\x^2-2(x)(8)=-8\qquad\text{add}\ 8^2=64\ \text{to both sides}\\\\x^2-2(x)(8)+8^2=-8+64\\\\(x-8)^2=56$

$5.\\2x^2+x-1=2\qquad\text{subtract 2 from both sides}\\\\2x^2+x-3=0\\\\2x^2+3x-2x-3=0\\\\x(2x+3)-1(2x+3)=0\\\\(2x+3)(x-1)=0\iff 2x+3=0\ \vee\ x-1=0\\\\2x+3=0\qquad\text{subtract 3 from both sides}\\2x=-3\qquad\text{divide both sides by 2}\\\boxed{x=-\dfrac{3}{2}}\\\\x-1=0\qquad\text{add 1 to both sides}\\\boxed{x=1}$

$6.\\2x^2-4x=0\qquad\text{divide both sides by 2}\\\\x^2-2x=0\\\\x(x-2)=0\iff x=0\ \vee\ x-2=0\\\\\boxed{x=0}\\\\x-2=0\qquad\text{add 2 to both sides}\\\boxed{x=2}$

8 0

3 years ago

Andy wants to rent a limo to go to prom, but wants to split the cost with some friends. The limo costs $400 to rent

Fed [463]

Answer:

its would prob be 100 / 4

Step-by-step explanation:

6 0

2 years ago

Which property is represented by the following equation? 2 + (3 + 4) = (2 + 3) + 4

Marysya12 [62]

Answer:

associative prop

Step-by-step explanation:

7 0

3 years ago

Solve the literal equation for the indicated variable. P= 2(l+w) for w

Lorico [155]

Answer:

P=2(l+w)

divide the both sides by 2

P/2 = l +w

make w the subject of the formula

P/2 - l =w

w = P/2 - l

8 0

2 years ago

Can you please help me out this is DUE IN 5 MINUTES please.

Rina8888 [55]

Answer

You flip it, so

Step-by-step explanation:

5 0

3 years ago

Freeeeeeeeeeeeeeeeeeeeeeer pointk​

Freeeeeeeeeeeeeeeeeeeeeeer pointk