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3 years ago

Pls help really not sure where to start

Mathematics

2 answers:

Arlecino [84]3 years ago

7 0

Here is the answer below:

musickatia [10]3 years ago

6 0

Answer:

pivk a answer or just guess I always get 85 percent

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What is the value of the numerical expression 5/8 - 5/12 (3 -1/4) + 2/3 ?

nasty-shy [4]

$\dfrac{5}{8} - \dfrac{5}{12} ( 3 - \dfrac{1}{4} )+ \dfrac{2}{3}$

$= \dfrac{5}{8} - \dfrac{5}{12} (2\dfrac{3}{4} )+ \dfrac{2}{3}$

$= \dfrac{5}{8} - \dfrac{5}{12} (\dfrac{11}{4} )+ \dfrac{2}{3}$

$= \dfrac{5}{8} - \dfrac{55}{48}+ \dfrac{2}{3}$

$= \dfrac{30}{48} - \dfrac{55}{48}+ \dfrac{32}{48}$

$= \dfrac{7}{48}$

6 0

3 years ago

Help! I will give brainliest!!!!

Strike441 [17]

Answer:

3.14 (or pi ) feet

Step-by-step explanation:

Entire circle circumference = pi *d = 8 pi feet

45 degrees is a fraction of the entire 360 degrees of the circle

45 / 360 * 8 pi = pi = 3.14 ft

4 0

2 years ago

The ________________ is the horizontal number line on the coordinate grid.

Ronch [10]

Answer:

x-axis

Step-by-step explanation:

The horizontal number line is called the x-axis. The vertical number line is called the y-axis. The point where the x- and y-axes meet is the origin.

Hope this helps! <3

3 0

3 years ago

Can anyone explain how to do mathematical induction. The question is below. Brainliest awarded for the right answer. Thanks.

igomit [66]

The sum of the triangular numbers is $\frac{n(n+1)(n+2)}{6}$

According to the question, the series of triangular numbers is given as in the form of the number of dots constituting the equilateral triangles i.e.
1, 3, 6, 10, 15 . . . . .n

<h3>what is triangular numbers?</h3>

triangular number are the sequence and series of the numbers and each number represents and constitute in visualization of series of equilateral triangle.

given series in the figure
1, 3, 6, 10, 15, . . . . . . ., n
each number represents the number of dots containing in triangle
now the series can be given by
$S = \frac{n(n+1)}{2}$ for n = 1, 2, 3, 4,. . . . .n
now , according to the question the sum of the series can be given as
⇒ ∑S
⇒ ∑ $\frac{n^2+n}{2}$
⇒ $\frac{1}{2}[\sum n^2+\sum n]\\\frac{1}{2}[\frac{n(n+1)(2n+1)}{6}+\frac{n(n+1)}{2}] \\\frac{n(n+1)}{4}[\frac{(2n+1)}{3}+1] \\\frac{n(n+1)}{4}[\frac{(2n+1+3)}{3}] \\\frac{n(n+1)}{4}[\frac{(2n+4)}{3}] \\\frac{n(n+1)}{4}2[\frac{(n+2)}{3}]\\\frac{n(n+1)(n+2)}{6}$

Thus, the sum of the triangular number is given by $\frac{n(n+1)(n+2)}{6}$

Learn more about triangular numbers here:
brainly.com/question/1417765

#SPJ1

3 0

2 years ago

Roberta decided to go shopping,

anygoal [31]

Wheres the rest of the problem? or is this it?

3 0

3 years ago

Read 2 more answers