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nika2105 [10]
3 years ago
9

12 + 24 + 8 X 4 Please help me solve this! Im failing in math! We are using PEMDAS​

Mathematics
2 answers:
liubo4ka [24]3 years ago
8 0

Answer:

68

Step-by-step explanation:

PEMDAS stands for, "Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction."

PEMDAS is the order of operations so we multiply/divide before we add/subtract.

8 x 4 = 32

12 + 24 = 36

36 + 32 = <u>68</u>

olga nikolaevna [1]3 years ago
6 0
I don’t know answer but I use gauthmath to help me with math u may as well use it and u can use this code P9EJ5H thank me later non
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143 players per 11 teams.how many players are on each one
klio [65]
143 players per 11 teams.
If you would like to know how many players are in each group, you can calculate this using the following step:

143 players / 11 teams = 143 / 11 = 13 players per group

Result: There are 13 players in each group.
6 0
3 years ago
Solve x2+4x+6=0 by graphing
klemol [59]

Answer: x = -2±√2 i or no real roots. See the explanation below.

Step-by-step explanation:

If you draw the graph, you will notice that there are no common points or you can say that there are no x-intercepts.

This means that the equation doesn't have any real roots.

If there are 2 common points (2 x-intercepts) then there are 2 real roots (answers.)

If there is only one common point (vertex is on x-axis) then there is only 1 real root.

If there aren't any common points (no x-intercepts) then there are no real roots.

So first, I'm gonna convert the equation into function and convert the standard form to vertex form.

x^2+4x+6=0\\y=x^2+4x+6\\y=(x^2+4x+4)-4+6\\y=(x+2)^2+2

We notice that the vertex is at (-2,2), the graph doesn't have x-intercepts (Graph below)

So the answer is clearly complex.

If you solve this by solving the equation then it'll be.

x^2+4x+6=0\\x= \frac{-b+-\sqrt{b^2-4ac}}{2a} \\x=\frac{-4+-\sqrt{16-24} }{2}\\x=\frac{-4+-\sqrt{-8} }{2}\\\\x=\frac{-4+-2\sqrt{2}i }{2}\\\\x={-2+-1\sqrt{2}i }\\\\

The answer is complex.

However, you can find the value of x easily by graphing. For example.

x^2+6x+5=0

Factor then you get

(x+5)(x+1)=0\\x=-5,-1

Or you can convert it to vertex form then graph.

y=x^2+6x+5

y=(x^2+6x+9)-9+5\\y=(x+3)^2-4

The vertex is at (-3,-4) then graph parabola (x-intercepts determine the roots of quadratic equation. For the graph, parabola intercepts x at (-5,0) and (-1,0) that means both -5 and -1 both are the value of x.

Note:

From the standard form, y=ax^2+bx+c The graph is called Parabola, and it's Quadratic Function.

a is how the graph is, for example. If a>0, the graph is supine parabola and if a<0 then the graph is inverted parabola.

|a| is determined if the graph is wide or narrow, the more the value of a is, the more narrow it will be. The less the value of a is, the more wide it will be.

b is what determined the change of graph (likely vertex). Without b, then it'd be ax^2+k which only move y-axis and not x-axis.

c is what determined the y-intercept and y-axis. If there is no b or the value of b is 0 then the vertex is at (0,c). If there is the value of b then c is only determined the y-intercept.

4 0
3 years ago
26.68 is 58% of what number?
LekaFEV [45]
46 because 58% of 46 is equivalent to multiplying them I think so yeah 58% x 46 = 26.68
4 0
2 years ago
What is the GCF of 14 and 21
n200080 [17]
Hey there the answer is, 

<span>The Greates Common Factor (GCF) is:   7
</span>

Hope I helped!!!<3

8 0
3 years ago
In a certain year the population of a country reached 321 million. The overall birth rate was births per​ 1000, and the overall
kkurt [141]

Answer:

Then it would stay at 321 million

Step-by-step explanation:

if the birth and death rate is both 1000 then nothing will change. Population wise.

4 0
3 years ago
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