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3 years ago

The slope of the line x+10=y

Mathematics

1 answer:

dsp733 years ago

6 0

Answer:

The slope of the line is 1.

Step-by-step explanation:

The equation is written in slope intercept form. ( y=mx+b). The variable m represents the slope of the line. Due to the fact there is no number in front of the x variable, that tells us that the slope is just 1.

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I’ll mark brainest! Find all the real cube roots of -0.000125

Ymorist [56]

Answer:

-0.05

Step-by-step explanation:

This will become much easier if we can get the ugly decimal into a nice fraction form.

Start by recognising $\frac{1}{8}=0.125$ . This is almost correct except the fraction is out by some number of factors of 10 (because the 125 part is correct but the number of 0s isn't).

$\frac{1}{80} = 0.0125\\\frac{1}{800}=0.00125\\\frac{1}{8000}=0.000125$

And hence we see that $-0.000125=-\frac{1}{8000}$ and now the cube root becomes easy to compute:

$\sqrt[3]{-0.000125} = \sqrt[3]{\frac{-1}{8000}} = \frac{\sqrt[3]{-1}}{\sqrt[3]{8000}} = \frac{-1}{20} = -0.05$ .

Advanced: You ask for all real cube roots. however the function $y=\sqrt[3]{x}$ is described as bijective. This means for all x, there is only one y corresponding to it. (And also for all y there is only one x corresponding to that). This means there can only ever be one cube root of any real number.

4 0

3 years ago

2x/x2-25=10/x2-25 - 4/x+5

White raven [17]

Hello,

x²-25≠0==>x≠5 and x≠-5

$\dfrac{2x}{x^2-25}= \dfrac{10}{x^2-25}- \dfrac{4}{x+5} \\

 \dfrac{2x}{x^2-25}= \dfrac{10}{x^2-25}- \dfrac{4(x-5)}{(x+5)(x-5)} \\

2x=10-4x+20\\

6x=30\\

x= 5 
$

8 0

3 years ago

10 times as many as 100

mr Goodwill [35]

10 times as many as 100
this simply mean 10100
=> 10 will be multiplies a 100 times and the result will be 1e100
=> also explained as 1 and 100 zeros to get the answer

4 0

3 years ago

A national survey indicated that 50% of adults conduct their banking online. It also found that 20% are younger than 50, and

Arisa [49]

Answer:

The probability that a person is younger than 50 given that she uses onling banking is 1.5%

Step-by-step explanation:

The survey indicated that 50% of adults conducts their banking online.

P(online banking customers) =1/2

Of the total number of customer that bank online, the survey stated that 20% of them are younger than 50 years.

P(customers younger than 50 yrs) =1/5

Out of the 20% than are younger than 50, we were told that 15% of them conduct online banking.

P(younger than 50 online banking customer) =3/20

Therefore the the probability that a = person is younger than 50 given that she uses online banking is P = 3/20*1/5*1/2 =17==3/200 = 0.015 =1.5%

The probability that she is younger than 50 does not increase or decrease with additional information, it only makes it clearer.

3 0

4 years ago

PLZ HELP!!!!! NO LINKS

Mazyrski [523]

Answer:

check the settings if you will see the link

7 0

3 years ago