1 year ago

Please solve with explanation 9 points

Mathematics

1 answer:

Levart [38]1 year ago

8 0

Step-by-step explanation:

try the option shown in the attachment, note, all the answers are marked with red colour.

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Answer:

the answer is b

Step-by-step explanation:

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2 years ago

Find two numbers whose sum is 7 and whose difference is 1.

Dimas [21]

Answer:

4 and 3

since:

4 + 3 = 7

4 - 3 = 1

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2 years ago

If x − √a is a factor of 2x4 − 2a 2x 2 − 3x + 2a3 − 2a2 + 3 , find the value of a.

iragen [17]

Answer:

$\boxed{\sf \ \ \ a = 1 \ \ \ }$

Step-by-step explanation:

Hello,

saying that $x-\sqrt{a}$ is a factor means that $\sqrt{a}$ is a zero which means

$2(\sqrt{a})^4-2a^2(\sqrt{a})^2-3*\sqrt{a}+2a^3-2a^2+3=0\\\\ 2a^2-2a^3-3*\sqrt{a}+2a^3-2a^2+3=0\\\\3-3*\sqrt{a}=0\\\\\sqrt{a}=\dfrac{3}{3}=1\\\\ a = 1$

so the solution is a = 1

Do not hesitate if you have any question

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3 years ago

Solve y∕2.5 = 5 for y.

Radda [10]

Answer:

D)12.5

Step-by-step explanation:

y/2.5=5

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Solve this system of linear equations. Separate

zepelin [54]

Answer:

Step-by-step explanation:

-9x + y = 16

12x + y = -5

9x - y = -16

21x = -21

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(-1,7)

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3 years ago