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3 years ago

Plz help me with this

Mathematics

1 answer:

aleksklad [387]3 years ago

5 0

(a), (b), (d) and (f) are correct statements

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If an=5n-3 find the common difference

elena55 [62]

Answer:

Hi here is your answer

an=5n-3

an-1= -3+5n

an-1= -3+5(n-1)

an-1= -3+5n-5

an-1= 5n-7

d= an- an-1

d=(5n-3)-(5n-7)

d=5n-3-5n+7

d=4

Answer: d = 4

Hope this helps you.

3 0

4 years ago

Read 2 more answers

what is the y- coordinate of the y- intercept of the line that passes through the points (-4,-4) and (4,8)

erastova [34]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ -4 &,& -4~) 
% (c,d)
&&(~ 4 &,& 8~)
\end{array}
\\\\\\
% slope = m
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{8-(-4)}{4-(-4)}\implies \cfrac{8+4}{4+4}\implies \cfrac{12}{8}\implies \cfrac{3}{2}$

$\bf \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}y-(-4)=\cfrac{3}{2}[x-(-4)]
\\\\\\
y+4=\cfrac{3}{2}(x+4)\implies y+4=\cfrac{3}{2}x+6\implies y=\stackrel{slope}{\cfrac{3}{2}}x\stackrel{y-intercept}{+2}$

notice the slope-intercept form, that's the y-coordinate.

3 0

3 years ago

A recipe calls for 1/6 teaspoon of oregano and 1 1/4 teaspoon of pepper. What is the ratio of oregano to pepper

ikadub [295]

Answer:

b. 2:15

Step-by-step explanation:

oregano : pepper

1/6 1 1/4

Changing to an improper fraction

1/6 5/4

Multiplying by 12 to get rid of the fractions

12 * 1/6 12*5/4

2 15

8 0

4 years ago

Read 2 more answers

What is 10*60,000 equal to

Svetlanka [38]

Hello there!

The answer to 10 · 60,000 is 600,000.

Hope this helped!!

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4 years ago

List all the factors of 40

densk [106]

The foctor of 40 I this = 1,2,4,5,8,40

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3 years ago