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3 years ago

The gradient of the line y= -2x -3

Mathematics

1 answer:

N76 [4]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

The equation of the line is written in y=mx+c form, where m is the gradient and c is the y-intercept.

In this case, your m is a -2 and your c is a -3.

Hence the gradient of the line is -2.

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The population of a local species of dragonfly can be found using an infinite geometric series where a1=42 and the common ratio

san4es73 [151]

$\bf \textit{sum of an infinite geometric serie}\\\\
\stackrel{for~~|r|\ \textless \ 1}{S=\sum\limits_{i=0}^{\infty}~a_1r^i\implies \cfrac{a_1}{1-r}}\qquad 
\begin{cases}
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=42\\
r=\frac{3}{4}
\end{cases}
\\\\\\
S=\cfrac{42}{1-\frac{3}{4}}\implies S=\cfrac{42}{\frac{1}{4}}\implies S=164$

bearing in mind that, the geometric sequence is "convergent" only when |r|<1, or namely "r" is a fraction between 0 and 1.

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2 years ago

The average cost of tuition, room and board at small private liberal arts colleges is reported to be $8,500 per term, but a fina

Vlada [557]

Answer:

The test statistic for this test is 3.82.

Step-by-step explanation:

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The alternate hypotesis is:

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In this question:

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3 years ago

What is the greatest common factor of 40 and 36

Kazeer [188]

Nobody goes around with lists of greatest common factors in their head.
When we need to know one, we grab the nearest pencil and work it out.

The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40 .

The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36 .

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The biggest one is 4 .

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Aleks [24]

Answer:

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Step-by-step explanation:

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3 years ago

3/4 over 2 please help me

NikAS [45]

Answer:

3/2

Step-by-step explanation:

(3/4)/2

3/4*2

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2 years ago

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The gradient of the line y= -2x -3​

The gradient of the line y= -2x -3