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2 years ago

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Mathematics

1 answer:

alexgriva [62]2 years ago

4 0

Answers:

First one is 130r

and

Second one is n(r*r)

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If you want brainiest and thanks and 10 points please help me with this question... Evaluate a+(−b) where a=4 and b=2

Vesna [10]

Answer:

a + (-b) = 4 + (-2) = 4 - 2 = 2

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3 years ago

What is the slope of (10, 4), (4, 15)?

kakasveta [241]

Answer:

Slope is -11/6

Step-by-step explanation:

$Given \: points \: are \: (10,4) \: \: and \: (4,15) \\ slope \: = \frac{y2 - y1}{x2 - x1} \\ here \: x1 = 10 \: \: \: y1 = 4 \\ and \: \: x2 = 4 \: \: \: and \: \: y2 = 15 \\ on \: substituting \: the \: values \: in \: formula \\ slope = \frac{15 - 4}{4 - 10} \\ = \frac{11}{ - 6}$

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2 years ago

What is 6900g converted to kg???

stich3 [128]

1000 g=1kg
to convert to kg
1kg/1000g=conversion factor
multiply
6900g times 1kg/1000g
grams cancel
6.9 kg

4 0

3 years ago

Read 2 more answers

Solve for x X - 1/2 (8 - x) = x + 3(4 - x) - x A) -32/9 B) -9/32 C) 32/9 D) 9/32

Greeley [361]

Option C

$x = \frac{32}{9}$

Solution:

$x - \frac{1}{2} \times (8 - x) = x + 3(4 - x) - x$

We have to solve for "x"

From given,

$x - \frac{1}{2} \times (8 - x) = x + 3(4 - x) - x$

Solve for brackets

Use distributive property

a(b + c) = ab + ac

Therefore,

$x - 4 + \frac{x}{2} = x + 12 - 3x - x$

Combine the constants

$x + \frac{x}{2} = x - x - 3x + 12 + 4\\\\x + \frac{x}{2} = -3x + 16$

Move the variables to left side of equation

$x + \frac{x}{2} + 3x = 16$

Combine the like terms

$2x + x + 6x = 32\\\\9x = 32\\\\x = \frac{32}{9}$

Thus option C is correct

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3 years ago

Why aren't convenience samples representative of the population?

vredina [299]

D) us Americans as men or women really don't get that much recondition. therfore if they can reach it easily, why would the get represented. imagine like the willy wonka and the charlie factory they only had 5 tickets in the whole world. if the whole world had them it wouldn't be as exselirating.

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3 years ago

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