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2 years ago

Write the number twenty-three in stander form

Mathematics

2 answers:

kozerog [31]2 years ago

8 0

Answer:

Step-by-step explanation:

Phoenix [80]2 years ago

7 0

Answer:

2.3 × 10

Step-by-step explanation:

23 represented in standard form or scientific notation form is:

2.3 × $10^{1}$

Simplifying gives;

2.3 × 10.

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Simplify this expression 5a/11a

barxatty [35]

You could cross cancel the a and your final answer would be 5/11

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2 years ago

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Find the slope between the pair of points (1,3) and (7,2)

agasfer [191]

Answer:

$\bold{m=-\dfrac16}$

Step-by-step explanation:

$\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}$

(1, 3) ⇒ x₁ = 1, y₁ = 3

(7, 2) ⇒ x₂ = 7, y₂ = 2

So the slope:

$\bold{m=\dfrac{2-3}{7-1}=\dfrac{-1}6=-\dfrac16}$

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2 years ago

Find the slope of a line with ordered pairs (1,5) and (5,8)

klemol [59]

Step-by-step explanation:

(1,5) (5,8)

x,y. x,y

Formula: y2-y1

x2-x1

so...

8-5= 3

5-1 = 4

so... 3

6 0

2 years ago

Enter an equation in point-slope form for the line.

NISA [10]

Answer:

y + 1 = 3(x + 8)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 3 and (a, b) = (- 8, - 1) , thus

y - (- 1) = 3(x - (- 8)), that is

y + 1 = 3(x + 8)

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2 years ago

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Write the explicit formula for the geometric sequence. a1 = -5 a2 = 20 a3 = -80

Anni [7]

$a_1 = -5;\ a_2 = 20;\ a_3 = -80 \\\\a_2:a_1=r\ and\ a_3:a_2=r\\\\r=20:(-5)=-4\ check\ r=-80:20=-4\\\\a_n=a_1r^{n-1}\to a_n=-5\cdot(-4)^{n-1}=-5\cdot(-4)^{-1}\cdot(-4)^n\\\\=-5\cdot\left(-\dfrac{1}{4}\right)\cdot(-4)^n=\dfrac{5}{4}\cdot(-4)^n\\\\Answer:\boxed{a_n=-5\cdot(-4)^{n-1}\ other\ a_n=\frac{5}{4}\cdot(-4)^n}$

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2 years ago