3 years ago

Hiii please help if you give a correct answer i’ll give brainliest thanks!

Mathematics

1 answer:

vovangra [49]3 years ago

5 0

Answer: B and D

Explanation:

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must a function that is decreasing over a given interval always be negative over that same interval explain

kolbaska11 [484]

check the picture below.

notice, a function that is decreasing, namely have a negative slope, doesn't have to be negative.

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3 years ago

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19. A quadratic equation is shown below.

victus00 [196]

Answer:

$\{\sqrt b, -\sqrt b\}$

Step-by-step explanation:

Given

$a^2 - b = 0$

Required

Determine the solution

Since b is a perfect square, the equation can be expressed as:

$a^2 - (\sqrt b)^2 = 0$

Apply difference of two squares:

$(a - \sqrt b)(a + \sqrt b) = 0$

Split:

$(a - \sqrt b)= 0 \ or\ (a + \sqrt b) = 0$

Remove brackets:

$a - \sqrt b= 0 \ or\ a + \sqrt b = 0$

Make a the subject in both equations

$a =\sqrt b \ or\ a =-\sqrt b$

The solution can be represented as:

$\{\sqrt b, -\sqrt b\}$

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3 years ago

Giving brainliest to correct answer!

lisov135 [29]

Answer:

The answer is 1.

Step-by-step explanation:

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2 years ago

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2p/9 + 5p/18 - 5/6 = 2/3 + p/12 + 1/6

mezya [45]

$\frac{2p}{9}+\frac{5p}{18}-\frac{5}{6}=\frac{2}{3}+\frac{p}{12}+\frac{1}{6}\ \ \ |Multiply\ by\ 36\\\\
4*2p+2*5p-5*6=12*2+3*p+6*1\\\\
8p+10p-30=24+3p+6\\\\
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\boxed{p=4}$

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3 years ago

25% of 180 is ? Show your work

Elenna [48]

25% of 180 is 45. You do the equation 25%*180 which equals to 45. The word of means multiply and the word is means equal

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