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3 years ago

The domain of F(x)=log[b]x is the set of all real numbers. True or false?

Mathematics

1 answer:

tia_tia [17]3 years ago

6 0

$f(x)=log_bx\\\\D=\mathbb{R}\ is\ false.\\\\correct\ domain:D:x\in\mathbb{R^+}\ and\ b\in\mathbb{R^+}\ and\ b\neq1.$

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Line m passes through the points (4, 1) and (7, 3) while line n passes through the points (-3, 5) and (-9, 1). Which statement a

VARVARA [1.3K]

The correct answer is <span>C. Lines m and n have the same slope so they are parallel. The slope = 2/3 </span>

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3 years ago

Read 3 more answers

(x+5)(√ 1-x)<br> what is the product of this composite function?

Radda [10]

Answer:

$x\sqrt{1-x}+5\sqrt{1-x}$

Step-by-step explanation:

$(x+5)(\sqrt{1-x} )\\\\=\left(\sqrt{1-x}\right)\left(x+5\right)\\\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\\\\a=\left(\sqrt{1-x}\right),\:b=x,\:c=5\\\\=\left(\sqrt{1-x}\right)x+\left(\sqrt{1-x}\right)\times\:5\\\\=x\left(\sqrt{1-x}\right)+5\left(\sqrt{1-x}\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\\\=x\sqrt{1-x}+5\sqrt{1-x}$

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3 years ago

A car traveling at 35mph follows a/an ____________ pattern.

zheka24 [161]

Answer:

C. Exponential

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3 years ago

I WILL GIVE BRAINLIEST :)

Triss [41]

Answer: I got 50x+$75 but I’m not too sure for the last step

Step-by-step explanation:

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2 years ago

The amount of money Tom has is 75% of Sallys amount of money. After Sally spent $120 and Tom saved all his money Tom's amount of

egoroff_w [7]

Answer: sally initially has $240, Tom initially has $180.

Step-by-step explanation:

Let initial amount of money sally has = x

Then, initial amount tom has = 75% * x = 0.75x

Now to present,

Amount sally has = x -120

Amount tom has = [x - 120] + [50% * (x-120)]

= x - 120 + 0.5x - 180

= 1.5x - 180

Since Tom didn't spend, it means this is the same amount tom has then we equate both equations.

0.75x = 1.5x - 180

180 = 0.75x

x = 240

Therefore, initial money of sally of sally = $240

Initial money of tom = 240 * 0.75 = $180.

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3 years ago