Answer:
P-E-M-D-A-S
Step-by-step explanation:
Ok, so start with what i call "P-E-M-D-A-S"
P: parentheses | Also known as these: ( )
E: exponents | Its a small number by another number, like the 3 on your screen
M: Multiply | Also Known as x or a dot
D: Divide | i forgot how to make it
A: Add | also known as +
S: Subtract | also known as -
now go in order to solve it, it makes it much more easy!
Answer:
49 is your answer
Step-by-step explanation:
let's do b-pemdas
brackets
parentheses
e(I forgot the name for it but it's basically a small number next to the big number)
Multiply
Divide
Add
Subtract
you do the equation in that order
so
2+8•7-(3^2)
we focus on (3^2)
that's 3•3 which equals to 9
so now the equation is
2+8•7-9
Now we focus on 8•7 which equals to 56
the equation now looks like
2+56-9
you then add 56 to 2 which equals to 58 and then subtract 9 from it so it should look like this
2+56=58
58-9= 49
and 49 is your answer
hope this help!!!
if you would give me brainliest that would help a lot!!
Alex bought a 6-pack of sports drink bottles that each had a volume of 350 ml.
a If Alex drank 3 of them, how many milliliters did she drink? Show your work.
Answer:
1,050ml
Step-by-step explanation:
6 x 350= 2,100
3 x 350= 1,050
2,100 - 1,050 = 1050ml
What is the population in 2020 of a place that has a population of 4 million people in 2011 and is growing at a rate of 1.3%?
Answer:
370 million
Step-by-step explanation:
In the 10 years from 2000 to 2010, the population was multiplied by the factor ...
100% + 9.6% = 109.6% = 1.096
In the next 20 years from 2010 to 2030, the population will be multiplied by that factor twice, if it grows at the same rate:
2030 population = (308 million)·(1.096²) ≈ 370 million
PlEASE HELP ASAP!!!! USATEST PREP DUE TODAY!!!Please No Links!!!
okey no links here u go
Answer:
2
Step-by-step explanation:
[4^2/(-1+3)^3+2*10] / (10+1)
= [16/8+20] / 11
= 22/11
=2
Hope this helps :) Giving me brainiest would help a lot :))
Helllllllpppppp pls help me
Answer:
there you go!! it's correct dont worry
Need help to solve this
Answer:
332s+(27xm)
Step-by-step explanation:
because 27 is how much you save per month and you started off with 332
the sum of 2 fractions 8/9. the difference 2/9. what are the 2 fractions?
Answer:
5/9 and 3/9
Step-by-step explanation:
run through the different possibilities and see what has a difference of 2/9th. Here is the way I ran through it
1/9 + 8/9 Difference is not 2/9th
2/9 + 6/9 Difference is not 2/9th
3/9 + 5/9 Difference is 2/9th. This is our answer
Step-by-step explanation:
5/9 and 3/9.....add 5/9 and 3/9 and you will get 8/9....if you subtract 5 and 3 it will give you 2....5/9-3/9=2/9
Graph the equations to solve the system y=2x+4 y=3x+3
Answer:
(1, 6)
General Formulas and Concepts:
Algebra I
Functions
Graphing
Reading a Cartesian Plane
Coordinates (x, y)Solving systems of equations by graphing
Step-by-step explanation:
Where the 2 equations intersect is the solutions to the systems of equations.
What is the solution to this addition sentence?
3/4 + (-1/2) = _____
Answer:
1/4
Step-by-step explanation:
-1/2 in to -2/4
3/4+(-2/4)=1/4
Which of the following functions has the same horizontal asymptote as the function graphed below?
Answer:
In most cases, there are two types of functions that have horizontal asymptotes. Functions in quotient form whose denominators are bigger than numerators when x is large positive or large negative.
Step-by-step explanation:
Lesley will use more than 1/2 cup but less than 1 whole cup of flour for a recipe
Answer:
3/4
Step-by-step explanation:
3/4 is greater than 1/2 and still less than 1 whole.
triangles are ? sided and ? angles figures
What is an equation of the line that passes through the points (-4, 8) and
(2, -1)?
Answer:
Kayla, learn this, :D more math is based on it. Just learn it, just memorize the following
Step-by-step explanation:
m = slope
m = rise / run
m = y2 - y1 / x2 - x1 ( this is still rise over run but in point form )
they give us two points to plug into the above formula
P1 = (-4, 8 ) in the form of ( x1, y 1 )
P2 = (2, -1) in the form of (x2, y2 )
now plug those into the above formula
m = ( -1 - 8 ) / ( 2-(-4) )
m = -9 / ( 2 + 4 )
m = -9 / 6
m = - 3/2
since we know the slope now , we can use the point slope equation of
y - y1 = m ( x - x1)
use the m we found and either point , P1 or P2
y - 8 = -3/2(x -(-4) )
y-8 = -3/2(x + 4)
y-8 = -3/2x - 6
y = -3/2x -6 + 8
y = -3/2x + 2
there you go :)
Use the GCF to factor:
25 + 40
Does anyone know this?
I need help what is 1+1 I've been on this for TWO hours...
Answer:
the answer is 2
Step-by-step explanation:
sorry if this is wrong
how can i do dis plss
Which letter has line symmetry?
Answer:
e. M
Step-by-step explanation:
Answer:
M has line symmetry
Step-by-step explanation:
hope this helps
A coin is flipped and a die is rolled find the probability of getting a head on the coin and a 4 on the die
Answer:
So for the head and tails one it is 1/1 chance of getting a head and for the dice on it is 1/21 that's the porbability hopes this helps :)
Step-by-step explanation:
Probability of getting a head on the coin and a 4 on the die is 0.083.
What is probability?Probability defines the likelihood of occurrence of an event. Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
Probability(Event) = Favorable Outcomes/Total Outcomes
According to the question
A coin is flipped and a die is rolled
Probability of getting a head on the coin and a 4 on the die:
Total Number of favorable outcomes(coin is flipped) = {H, T} = 2
Number of favorable outcomes (head) = 1
Total Number of favorable outcomes(die is rolled) = {1, 2, 3, 4, 5, 6} = 6
Number of favorable outcomes (4 on the die) = 1
P(head) = [tex]\frac{1}{2}[/tex]
P(4) = [tex]\frac{1}{6}[/tex]
P(head and 4) = [tex]\frac{1}{2}[/tex]. [tex]\frac{1}{6}[/tex]
= [tex]\frac{1}{12}[/tex]
= 0.083
Hence, Probability of getting a head on the coin and a 4 on the die is 0.083.
Find out more information about Probability here
https://brainly.com/question/11234923
#SPJ2
Data from a representative sample were used to estimate that 31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money. You decide to conduct a survey to estimate this proportion for the current year. What is the required sample size if you want to estimate this proportion with a margin of error of 0.05
Answer:
The required sample size is 329.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
31% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money.
This means that [tex]\pi = 0.31[/tex]
Confidence level is not given, so we assume 95%.
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
What is the required sample size if you want to estimate this proportion with a margin of error of 0.05?
We need a sample size of n. n is found when M = 0.05. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.05 = 1.96\sqrt{\frac{0.31*0.69}{n}}[/tex]
[tex]0.05\sqrt{n} = 1.96\sqrt{0.31*0.69}[/tex]
[tex]\sqrt{n} = \frac{1.96\sqrt{0.31*0.69}}{0.05}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.31*0.69}}{0.05})^2[/tex]
[tex]n = 328.6[/tex]
Rounding up
The required sample size is 329.
219 is what percent of 146?
Answer:
150
Step-by-step explanation:
100%/ x% = 219/ 416
Cross multiply
x = 150 %
219 is 150% of 416
I NEED HELP.
2X^2-8X= BUT FACTORISE!
Answer:
This is my answer
2x(x-4)
Step-by-step explanation:
2x(x-4)
[tex]\tt{} {2x}^{2} - 8x[/tex]
[tex]\tt{}2x \times (x - 4)[/tex]
Figure B is a scaled copy of Figure A. Figure A Figure B
Answer:
I believe 2.
Step-by-step explanation:
All the lengths can be multiplied by 2 to equal the lengths of the larger triangle. However, I am not positive.
Answer:
2
Step-by-step explanation:
22x2=44
10x2=20
32x2=64
40x2=80
all of them match so yes they are equivalent
Evaluate the expression. 1.8 plus (8.9 - 2.9)
Answer: 7.8
Explanation: 8.9 - 2.9 = 6.0 + 1.8 = 7.8
Can Yall help with the question
Answer:
A. Transform Boundary
Step-by-step explanation:
Transform boundaries are places where plates slide sideways past each other
Divergent Boundaries occur when two tectonic plates move away from each other
Convergent Boundaries are when both the plates collide into each other
Subduction boundaries are when one plate bends and slides underneath the other curving down into the mantle
Hope this helps dude
Answer: no learn it urseld caca haha
Step-by-step explanation:
Give triangle ABC with coordinates A(3, 8), B(9,0) and C(5,2). How can you prove that triangle ABC is isosceles? Show your work.
Answer:
The distances AB and BC are
√
52
and therefore isosceles.
Explanation:
If we label them A(13,-2) B(9-8) and C(5-2)
The distance between A and B:13⇒9=4−2⇒−8=42+62=52 so the distance is √52
The distance between B and c:9⇒5=4−8⇒−2=642+62=52
the distance is
√
52
The distance between A and C is 8 as they are both on -2 for
y
The distances AB and BC are
√
52
and therefore isosceles.Step-by-step explanation:
on the grid, which point is located in the quadrant where the x-coordinate is a negative number and the y- coordinate is a positive number¿
Answer:
b
Step-by-step explanation:
because if you look at it the x-coordinate is -6 and the y-coordinate is positive 4
-3z - z equivalent expression
What are the factors of 12z
Romell receives five points for each correct answer on a
test and loses two point for each incorrect
answer.
a. Write an equation showing that Reggie received 30 points.
6x = 30
b. Write an equation showing that Reggie answered all 35 questions on the
test.
Answer:
5x - 2y = 30
x + y = 35
Step-by-step explanation:
Number of correct answers = x
Number of incorrect answers = y
Points won per correct answer = 5
Points lost per incorrect answer = 2
If Reggie received 30 points :
Required equation :
(points won per correct answer * number of correct answers) + (points lost per incorrect answer * number of incorrect answers)
5x + (-2y) = 30
5x - 2y = 30
Equation showing that Reggie answer all 35 questions :
Number of correct answers + number of incorrect answers = 35
x + y = 35
If f(x) = - 2x - 8 and g(x) = 4x - 2, for which values of x is f(x) = g(x)? *
9514 1404 393
Answer:
x = -1
Step-by-step explanation:
You want ...
f(x) = g(x)
-2x -8 = 4x -2
-6 = 6x . . . . . . . . . . add 2x +2
-1 = x . . . . . . . . . . divide by 6