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3 years ago

Estimate the sum of 487 and 310

Mathematics

2 answers:

Anika [276]3 years ago

8 0

487 and 310 round to 800

Finger [1]3 years ago

7 0

Answer:487 is almost 500, so we will approximate 487 as 500. 310 is just over 300, so we will approximate 310 as 300

Step-by-step explanation:

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Here are the first four terms of an arithmetic sequence. 3 10 17 24 Find, in terms of n, an expression for the nth term of this

ollegr [7]

Answer:

$a_{n}$ = 7n - 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = a₂ - a₁ = 10 - 3 = 7 , thus

$a_{n}$ = 3 + 7(n - 1) = 3 + 7n - 7 = 7n - 4

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3 years ago

12 more than 8.2 times a number n

snow_tiger [21]

Answer:

12+8.2n, this is the answer

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3 years ago

2.What is the solution of the system?

xeze [42]

The solution of the system is A. (2, 1)

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3 years ago

¿ cuál será el volumen de una pirámide hexagonal si las aristas de la base miden 8cm, la apotema vale9.93cm y su altura es de 28

dem82 [27]

Answer:

2224.32 cm³

Step-by-step explanation:

La fórmula para el volumen de una pirámide hexagonal = 1/3 (1/2 × P × a) × h

Donde a = Apotema = 9,93 cm

P = Perímetro =

Pirámide hexagonal = 6 × Bordes de la base = 6 × 8 cm = 48 cm

h = Altura = 28 cm

Por eso,

Volumen de la pirámide hexagonal = 1/3 (1/2 (48 × 9.93) × 28 cm

= 1/3 × 238.32 × 28 cm

= 2224.32 cm³

Volumen de la pirámide hexagonal = 2224.32 cm³

4 0

3 years ago

WRITE AN EQUATION THAT REPRESENTS THE LINE. USE EXACT NUMBERS.

wel

Answer:

$y=\frac{6}{5}x-5$

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when x is 0)

<u>1) Determine the slope (m)</u>

$m=\frac{y_2-y_1}{x_2-x_1}$

Plug in the two given points (0,-5) and (5,1)

$m=\frac{1-(-5)}{5-0}\\m=\frac{1+5}{5-0}\\m=\frac{6}{5}$

Therefore, the slope of the line is $\frac{6}{5}$ . Plug this into $y=mx+b$ :

$y=\frac{6}{5}x+b$

<u>2) Determine the y-intercept (b)</u>

$y=\frac{6}{5}x+b$

On the graph, we can see that when x is 0, y is equal to -5 (we're also given the point (0,-5). Therefore, the y-intercept of the line is -5. Plug this back into the equation:

$y=\frac{6}{5}x-5$

I hope this helps!

6 0

3 years ago

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