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3 years ago

Quadratic inequalities

Mathematics

1 answer:

lina2011 [118]3 years ago

7 0

See picture for rough graph

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The sum of 15 and the product of five and V

soldi70 [24.7K]

put it into an equation..

15+5v

sum is addition and product is multiplication

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3 years ago

D=1/3fk, solve for f

Stella [2.4K]

Answer:

f=3d/k

Step-by-step explanation:

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3 years ago

Evaluate (-7)2. p l e a s e a n s w e r q u i c k\

devlian [24]

Answer:

(-7)2 = -14

Step-by-step explanation:

The parenthesis basically mean "multiply". So, this is a simple equation meaning -7 x 2. And remember, anytime we multiply a positive by a negative, you get a negative. So, simply multiply 7 x 2 = 14 and add a negative sign to make the solution true. So, -7 x 2 or (-7)2 = -14

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3 years ago

Read 2 more answers

√(25 - 10 √(3) + 3) (not as a decimal)

nikitadnepr [17]

Answer:

$\huge\boxed{\sqrt{25-10\sqrt3+3}=5-\sqrt3}$

Step-by-step explanation:

$\sqrt{25-10\sqrt3+3}=(*)\\\\25=5^2\\3=(\sqrt3)^2\\10\sqrt3=(2)(5)(\sqrt3)\\\\(*)=\sqrt{5^2-(2)(5)(\sqrt3)+(\sqrt3)^2}\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=\sqrt{(5-\sqrt3)^2}\\\\\text{use}\ \sqrt{a^2}=|a|\\\\=|5-\sqrt3|=5-\sqrt3\\\\^{\text{because}\ 5>\sqrt3\to5-\sqrt3>0}$

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2 years ago

Could someone please help me with this it’s due tonight please

Whitepunk [10]

Answer:

3/4 of the way from A to B = $(-\frac{7}{2}, \frac{5}{4})$ or (-3.5, 1.25)

Step-by-step explanation:

Please see attached images below for explanation:

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3 years ago