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3 years ago

I need help will mark brainliest

Mathematics

1 answer:

romanna [79]3 years ago

5 0

Answer:

A. -8

B. -8

C. 20

Step-by-step explanation:

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Graph the inequality x > 3.

Marianna [84]

The graph would look like first one, or like this:

Hope this helped! c:

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4 years ago

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The bowl has a diameter of 10 inches. What is its radius?

Licemer1 [7]

5 because u divide it

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3 years ago

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A placebo is a substance that should elicit no positive response in an experimental subject.

adelina 88 [10]

Answer:

A) True

Step-by-step explanation:

In an experiment that has the purpose of testing the efficacy of a procedure or drug, comparison is made against the efficacy of a placebo, a procedure or drug that is intended to have no effect whatever.

Famously, a placebo is often found to be nearly as effective (or even more effective) than the procedure or drug on trial. This effect is known as "the placebo effect."

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3 years ago

Please hurry \/\/\/\/\/ []

Anastasy [175]

Answer:

They are equal.

Step-by-step explanation:

First, we can simplify the second equation by multiplying 7 times 6 and then 7 times 5 due to the distributive property.

$42+35 = 7(6+5)?\\42+35=(7 * 6)(7 * 5)\\42+35=42+35\\$

Therefore, using the distributive property, they are equal.

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3 years ago

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Find the slope of the line that is parallel and perpendicular -7x-2y=4

Rus_ich [418]

$\bf -7x-2y=4\implies -2y=7x+4\implies y=\cfrac{7x+4}{-2}\implies y=\cfrac{7x}{-2}+\cfrac{4}{-2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{7}{2}} x-2\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill$

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}$

now, what's the slope of a line parallel to that one above? well, parallel lines have exactly the same slope.

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3 years ago