Help me please I forgot my notes at school

Help Me Please I Forgot My Notes At School

Answers

Answer 1
1/2 x 6 = 3
3 x 8 = 24
24/6 = 4
4 - 1 = 3

3 is your answer

hope this helps
Answer 2
Because of BIDMAS, we know to do the brackets first
so it would be 3 * 8 ÷ 6 - 1
Division and multiplication next, so 4 -1
Lastly, subtraction
3

I am not 100% sure this answer is right but this is system I was taught
Hope it helped

Related Questions

Any proposed solution of a rational equation that causes a denominator to equal​ _______ is rejected.

Answers

Answer:

Any proposed solution of a rational equation that causes a denominator to equal​ __ZERO__ is rejected.

Step-by-step explanation:

We will show this statement is true by an example:

Consider the expression :  [tex]\frac{x}{x-4}=\frac{x}{x-4}+4[/tex]

Now, solved the rational expression and check its proposed solution

[tex]\frac{x}{x-4}=\frac{x}{x-4}+4[/tex]

x cannot equal to 4, as it makes  both denominators equal to zero.

Multiply both the sides by (x-4),

[tex]\left ( x-4 \right )\cdot \frac{x}{x-4}=\left (x-4 \right )\cdot\left ( \frac{x}{x-4}+4  \right )\\[/tex]

Now, use the distributive property on Right hand side,

[tex]\left ( x-4 \right )\cdot \frac{x}{x-4}=\left (x-4 \right )\cdot \left ( \frac{x}{x-4} \right )+\left (x-4 \right )\cdot 4\\[/tex]

Simplify the above expression,

[tex]x=x+4x-16[/tex]

Combine like terms,

[tex]x-x-4x=-16[/tex]

[tex]-4x=-16[/tex]

Divide both sides by -4, we get

[tex]\frac{-4x}{-4}=\frac{-16}{-4}[/tex]

[tex]x=4[/tex].

As we know that x cannot equal to 4, replacing x=4 in the original expression causes the denominator equal to 0.

Check the solution: [tex]\frac{x}{x-4}=\frac{x}{x-4}+4[/tex]

Substitute the value of x=4 in the original expression,

[tex]\frac{4}{4-4}=\frac{4}{4-4}+4[/tex]

[tex]\frac{4}{0}=\frac{4}{0}+4[/tex]

Thus, 4 must be rejected as the solution, and the solution set is only 0.












Final answer:

A proposed solution of a rational equation that causes a denominator to equal zero is rejected because division by zero is not possible.

Explanation:

Any proposed solution of a rational equation that causes a denominator to equal zero is rejected. When the denominator of a rational equation is zero, the fraction becomes undefined because division by zero is not possible. In mathematics, division by zero is an undefined operation.

wes has six errands to run (picking up the dry cleaning, going to the grocery store, getting gas, going to the bank, going to the library, and going to the video store). he only haves time to run 3 errands this afternoon. how many different combinations of three errands could he choose to run?

Answers

if you did 1*2*3*4*5*6 it's 720

Answer: 120 different combinations  .

Step-by-step explanation:

The combination of n things taking m things at a time is given by :-

[tex]C(n,m)=\dfrac{n!}{m!(n-m)!}[/tex]

Given : The total numbers of errands = 6

Now, the combination of 6 errands taking 3 at a time is given by :-

[tex]C(6,3)=\dfrac{6!}{3!(6-3)!}\\\\=\dfrac{6\times5\times4\times3!}{3!}=120[/tex]

Hence, he could choose to run 120 different combinations of three errands .

Find parametric equations for the line through the point ( 0,3,2 ) that is perpendicular to the line ! ! x =1+t , ! ! ! y = 3−t , ! ! z = 4t , and intersects this line. (use the parameter t ).

Answers

wgats the choices????????????????????

The decimal equivalent to the binary number 0 0 0 1 0 1 1 0 is ______________.

Answers

this would be

1 + 2^1 + 2^3  =  11 in decimal 

Do I add the lenghs of the sides of a figure and multiply them by the height to get the area?

Answers

It depends what figure you have.

The most basic shape, a square, or even a rectangle's area is found by multiplying the two different side lengths together. (length and width)

A triangle is the base * height / 2.

Trapezoid base 1 + base 2 *height / 2 or something like that.

Circle is [tex] \pi [/tex] r squared.

Just search it up for each one.

In October Greg and Thomas had the same amount of money in their savings account in November Greg deposited $120 into his account Thomas increased the money in his account by 20% when they compare their bounces they found out they were still equal

Answers

assume the amount of money they both deposited in october is m.
in november, greg deposited 120$, so the total amount in his account became m+120
thomas increased his account by 20%, this meams that the amount of money in his account became: m+0.2m
since both values are still equal, we will equate the two equations and solve for m:
m+120 = m+0.2m
0.2m = 120
m = 600$

what is the exponent used in cubing a number

Answers

Cubing a number means raising that number to the third power.

So, the answer is 3.

Over last week,the daily low temperature in degrees Fahrenheit have been -4,6.2,18 1/2,-5.9,-1/4,and1.75.list these numbers in order from least to greatest

Answers

-5.9
-4
-1/4
.2
1/2
1.75
18
-5.9, -4, -1/4, 1/2, 1.75, 6.2, 18

Suppose that it costs ​$25 to place a classified advertisement in the​ newspaper, plus ​$3 for each line. Then the cost to place an ad x lines long is given by y​ dollars, where y=3x+25. Express an ordered pair the fact that a 2 line ad cost $31

Answers

substitute 2 for x:
y = 3(2) + 25

y = 6 + 25

y = 31

in (x,y) form:
(2, 31)

what is 150% as a fraction

Answers

150% means 150 out of 100 so find the GCF of both 150 and 100 and that would be 50 since it can go into both 150 and 100.

divide both the numerator and denominator by GCF

Simplify 

Answer: 3/2
To write .150 as a fraction you have to write .150 as the numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
.150 = .150/1 = 1.5/10 = 15/100

And finally we have: 
.150 as a fraction equals 15/100

Time measured in minutes is an example of a(n) _______________ scale.

Answers

The answer is interval scale.

The answer can be written in statement form as,"Time measured in minutes is an example of a(n) interval scale."

What is an interval scale?

A numerical scale known as an interval scale is one in which both the order of the variables and their differences are known. Using the Interval scale, variables with recognizable, consistent, and calculable differences are categorized.

It is easy to remember the primary role of this scale too, ‘Interval’ indicates ‘distance between two entities’, which is what Interval scale helps in achieving.

The value of time is given in minutes.

The given quantity can be measured on interval scale.

Hence, the required scale is known as interval scale.

To know more about interval scale click on,

https://brainly.com/question/28541986

#SPJ5

F(x)=x-2/x^3+x find the domain

Answers

hello : 
f  exist : x^3+x ≠ 0 
but :  x^3+x = 0
x (x²+1) =0
x= 0        x²+1 = 0    ( x² = -1  no reals solutions )
the domain is : D = ]-∞,0[ U  ]0,+∞[

How can knowing the multiplication properties help you multiply 5x(2x6)?

Answers

PEMDAS helps because it tells you that the first thing to do it the P= parenthesis, so first you would do 2x6 which is 12 then you would have 5(12) the only other property to do would be M=multiplation so then solve 5x12

Need help with number 6. Also could you tell me if I did number 5 right? Thanks

Answers

check the picture below.

thus

[tex]\bf \stackrel{0}{h}=-16t^2+64\implies 0=-16t^2+64\implies 16t^2=64\implies t^2=\cfrac{64}{16} \\\\\\ t^2=4\implies t=\sqrt{4}\implies t=\stackrel{seconds}{2}[/tex]

as far as 5, is correct, however

[tex]\bf \textit{using the pythagorean theorem}\\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2}\qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ c=\sqrt{15^2+8^2}\implies c=\sqrt{289}\implies c=17[/tex]

2) Mr. Somers had twenty pieces of metal that were all the same length. If each piece of metal was 3 1/5 inches long and he put them side by side, what would be the total length of all the pieces together?

Answers

You would do 20 • 3=60 and the you would add 20 • 1/5=4 so, your total is 64in.

what is 77.0 divided by 200

Answers

77/200 = 0.385

hope this helps
When you get your handy dandy calculator out...
77/200 comes out to equal 0.385

A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained by a third pipe in three hours. If the tank is empty and all three pipes are open, in how many hours will the tank be filled?
A. 8 hours
B. 12 hours
C. 24 hours

Answers

I think its B.  In 12 hrs, the tank will be filled with
all 3 pipes open
The correct answer would be 
B) 12 hours.

Ceremonies help individuals cope with loss as they facilitate the grieving process. Please select the best answer from the choices provided. T F

Answers

this answer is true ceremonies help deals with loss

Answer:

True

Step-by-step explanation:

Ceremonies do help individuals cope with loss as they facilitate the grieving process.

3/5 of 40 dollar restaurant

Answers

40 * 3/5
120/5
24

Hope this helps!
To find the answer times: 3/5 x 40 = 24

Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train A heading towards station A, and train B heading towards station B. Train A reaches station A after 4 h. Train B reaches station B after 312 h. Station A and Station B are 562.5 mi apart. What is the rate of the trains? Enter your answer in the box.

Answers

the answer is 75 mph i took the test and it said 75 not 1.78

Answer:

its 75 i did the math a calaculator

Step-by-step explanation:

Use this equation to find dy/dx. 3y cos x = x2 + y2

Answers

Given: 3y cos x = x² + y²

Define [tex]y' = \frac{dy}{dx} [/tex]

Then by implicit differentiation, obtain
3y' cos(x) - 3y sin(x) = 2x + 2y y'
y' [3 cos(x) - 2y] = 2x + 3y sinx)

Answer:
[tex] \frac{dy}{dx} = \frac{2x+3y \, sin(x)}{3cos(x)-2y} [/tex]

Let a and b be the solutions of the quadratic equation $2x^2 - 8x + 7 = 0. Find 1/(2a)+(1/2b).

Please help me!

Answers

Hello,

[tex]2x^2-8x+7=0\\ x^2-4x+ \frac{7}{2} =0\\ So\ a+b=4\ and\ \frac{a+b}{2} =2\ (x^2-(a+b)x+a*b=(x-a)(x-b)\ )[/tex]

Maree is 8 years older than Aaron.
Aaron is twice as old as Rick.
All their ages add up to 28.
What are their ages?
Maree is
Aaron is
Rick is




Answers

maree is 16
Aaron is 8
Rick is 4

what is the answer? this is hard

The function d(x) =3x +2 determine how many donuts need to be purchased for a meeting, where x is the number of people at the meeting. The office manager uses h(d(x)) to find the amount of money to bring for the donuts purchase. The function h(x) = 2x + 7 . Solve for how much money to bring when there are 8 people In the meeting.
A.25
B.26
C.52
D.59

Answers

The answer is C... Hope I helped:-)

The number of sofas a factory produces varies directly with the number of hours the machinery is operational. Suppose the factory can produce 455 sofas in 48 hours. What is an equation that relates the number of sofas produced, n, with the amount of time, t, in hours? What is the graph of your equation?

Answers

n = kt  where k is a constant of variation

455 = 48k

k = 455 / 48 =  9.479

Required equation is  n = 9.479 t    Answer

The graph will be a straight line passing through the origin with slope  9.479.

Which of the following gives an example of a set that is closed under multiplication? CHOOSE ALL THAT APPLY !!!! 15 PTS

A. The product of an even number and an even number


B. The product of 0 and 0


C. The product of a negative number and a negative number


D. The product of a perfect square and a perfect square

Answers

a because the square root would be equal so the correct response would be a

use multiplication and the Distributive property to find the quotient
70 divided by 5 =

Answers

once you divide 70 by 5 your answer will be 14

Find f(5) for f(x). ... .. ... ....

Answers

Plugging 5 in for x, we get (1/9)*3^5=(1/9)*243 due to that in PEMDAS, exponents come before multiplication, Next, we multiply the two to get 243 as our answer
I believe the answer is B

A couple has 4 children. what is the probability they would have four boys

Answers

.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,1/4

So is the answer - least is the negative first, them zero, them the positive?

Answers

Yes. That’s the order.
Other Questions
Ellas nunca _____ con animales de peluche. Why is it important to identify where privacy data resides throughout your it infrastructure? Find out the probability of rolling two dices being total of 7. What is all the combination of two dices making total of 7 ? What is the probability of rolling two dices being total of 7? Does water boil at the same temperature everywhere Identify a reflection about the x-axis or a reflection about the y-axis of (x) = 7x2 x3 by observing the equation of the function g(x) = 7x2 + x3. What is one tip for effective discipline and why is it an effective method? In this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true? 1. find the LCD of 3/5 and 1/6.A. 5B. 6C. 11D. 302. what is the difference between 3/7 and 1/14.A. 1\2B. 4/14C. 5/14D. 9/143. if Sandy's cookie recipe calls for 1/3 cup of brown sugar and she increases it by 2/9 of a cup, how much brown sugar does she use?A. 7/9 cupB. 5/9 cup C. 4/9 cupD. 1/9 cup4. what value could be added to 2/15 to make the sum greater than 1/2?A. 1/15B. 8/30C. 5/15D. 8/15 5. which set of mixed numbers has a difference less than 1?A. 1 2/9, 1 1/9B. 3 4/7, 2 1/7C. 2 4/5, 1 1/3D. 2 7/9, 1 1/3 The disposal of the dead in some religions puts a strain on the environment. Which are potential problems that may be caused by these practices?reduced food supplyreduced open spacereduced timber supplyreduced pollutionu can pick more than one The Porter family is moving from Baltimore, Maryland, to San Francisco, California. They would like to know what the difference will be in their family budget. How would you explain cost of living to them? Active reading (color-coding, highlighting, outlining, note-taking) is an effective strategy for which type(s) of learners? (select all that apply.) 30tens-3tens3tenths= Find the absolute value of -1818-181/18-1/18Find the opposite of -2525-251/25-1/25 Eastern industries has prepaid its insurance expense for the entire fiscal year on january 1. under the cash basis of accounting eastern will Identify one organism that is not extinct? Who was the u.s president who served in the office the longest? Let f(x) = x2 and g(x) = x 3. Evaluate (g f)(0). 4. When inserting clip art into a page of text, which of the following is true? (1 point)It is not important what the picture is, as long as it is an exciting picture.The picture can only go above or below the text.The picture must stay exactly where it first appears in relation to the text in the document.You can choose where to position the picture in line with the rest of the text in the document. Tony made 14L of lemonade for a party. His guests drank 9500 mL of the lemonade. How many milliliters of lemonade did tony have left? please help!!ASAP!!!!!!! Steam Workshop Downloader