NEED HELP !!!!!!!!!!!!!!!!!!!!!!!!

NEED HELP !!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

S4. 9x=61

R1. Subtrative Property of Equality

R2. Mutiplication property of Equality

R.3 Distributive Property of Equality

R5. Division Property of Equality


Related Questions

527 x 36
What will this equal

Answers

Answer:

18972 I use an calculator

The solution of number 527 × 36 after multiplying is,

⇒ 527 × 36 = 18,972

We have to give that,

To solve the expression,

⇒ 527 × 36

Now, simplify the numbers as,

⇒ 527 × 36

After multiply,

⇒ 18,972

So, the solution is,

⇒ 18,972

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ6

Find the equation, function and describe. (100 points)

X
1
2
3
4
5
6
7

Y
5
2.5
1.6667
1.25
1
.83333
.71429

Answers

Answer:

257890 is the function of the equation

Step-by-step explanation:

mark me BRAINLIEST

Find the slope......

Answers

Answer:

Step-by-step explanation:

whats 9×9 how do you get the answer​

Answers

Answer:

9 × 9 = 81

This is basic 12x12 tables math

Answer:

81

Step-by-step explanation:

you just take 9 and times it by 8 and you get 81

How do you solve -2 1/2+3/4÷3/8

Answers

Step-by-step explanation:

1. use PEMDAS (Parentheses, Exponent, Multiplication & Division, Addition & Subtraction). you would do 3/4 divided by 3/8 first.

  3/4 / 3/8 = 2  

2. add 2 to -2 1/2 (or if it's easier to understand, do 2 minus 2 1/2)

  -2 1/2 + 2 = -1/2     OR       2- 2 1/2 = -1/2

answer is -1/2

ent
Use the interactive to find an expression equivalent to
4x - 4 - 2x + 3.
O 2x - 1
O 6x - 1
O 2x - 7
O-2x + 3
Please hurry help

Answers

B that is the equivalent answer

Answer:

it's A

Step-by-step explanation:

2x - 1

I put b and got it wrong

A researcher is testing the claim that the average university student works less then 15 hours a week. To test this claim she surveys a random sample of 20 undergraduate students who reported an average of 13.5 hours a week of work. We will assume that the population is normally distributed with a standard deviation of 5 hours per week.



Test this claim at the alpha of 0.02 by calculating the z-score and comparing it to the critical z-score (z subscript c r i t end subscript equals negative 2.05 right parenthesis.

You have the standard error of the mean, so solve for the z-score.

Answers

Answer:

no

Step-by-step explanation: pick up the phone baby i know your home

16x2 - 8x + 1 is an example of a ______​

Answers

Answer:

the answer would be an equation

Use the factor theorem to determine which of the following is a factor of f(x)=x^3+5x2-15x+9

x-2

x+1

x-1

x+2

show work please

Answers

x+2

Step-by-step explanation:

x+2

If x = –2 is a zero, then x + 2 = 0, so x + 2 is a factor. Similarly, if x = 1/3 is a zero, then x – 1/3 = 0, so x – 1/3 is a factor. By giving me two of the zeroes, they have also given me two factors: x + 2 and x – 1/3.

John is saving money for a digital camera
that cost $490. So far, he saved $175. If
he will save $50 per week, how many more
weeks does he need to save to buy the
camera? Which of the following
represents the right inequality?

Answers

Answer

7 weeks

Step-by-step explanation:

$490 - $175 = $315

John needs $315 still for the camera

divdie $315 by $50 and you get 6.3 but because it cant be 6 weeks he would be short $15 you would have to wait an additional week in order to cover the cost of the camera completly.

Brainliest please!!!!

Which of the following statements is true for all sets A,B and C? Give a proof

or a counter example.


(a) A ⊆ ((A∩B)∪C).

(b) (A∪B)∩C = (A∩B)∪C.

(c) (A\B)∩C = (A∩C) \ (B∩C).

Answers

Answer:

(a) and (b) are not true in general. Refer to the explanations below for counterexamples.

It can be shown that (c) is indeed true.

Step-by-step explanation:

This explanation will use a lot of empty sets [tex]\phi[/tex] just to keep the counterexamples simple.

(a)

Note that [tex]A \cap B[/tex] can well be smaller than [tex]A[/tex]. It should be alarming that the question is claiming [tex]A\![/tex] to be a subset of something that can be smaller than [tex]\! A[/tex]. Here's a counterexample that dramatize this observation:

Consider:

[tex]A = \left\lbrace 1 \right\rbrace[/tex].[tex]B = \phi[/tex] (an empty set, same as [tex]\left\lbrace \right\rbrace[/tex].)[tex]C = \phi[/tex] (another empty set.)

The intersection of an empty set with another set should still be an empty set:

[tex]A \cap B = \left\lbrace 1\right\rbrace \cap \left\lbrace\right\rbrace = \left\lbrace\right\rbrace[/tex].

The union of two empty sets should also be an empty set:

[tex]((A \cap B) \cup C) = \left\lbrace\right\rbrace \cup \left\lbrace\right\rbrace = \left\lbrace\right\rbrace[/tex].

Apparently, the one-element set [tex]A = \left\lbrace 1 \right\rbrace[/tex] isn't a subset of an empty set. [tex]A \not \subseteq ((A\cap B) \cup C)[/tex]. Contradiction.

(b)

Consider the same counterexample

[tex]A = \left\lbrace 1 \right\rbrace[/tex].[tex]B = \phi[/tex] (an empty set, same as [tex]\left\lbrace \right\rbrace[/tex].)[tex]C = \left\lbrace 2 \right\rbrace[/tex] (another empty set.)

Left-hand side:

[tex](A \cup B) \cap C = \left(\left\lbrace 1 \right\rbrace \cup \left\lbrace \right\rbrace\right) \cap \left\lbrace 2 \right\rbrace\right = \left\lbrace 1 \right\rbrace \cap \left\lbrace 2 \right\rbrace = \left\lbrace \right\rbrace[/tex].

Right-hand side:

[tex](A \cap B) \cup C = \left(\left\lbrace 1 \right\rbrace \cap \left\lbrace \right\rbrace\right) \cup \left\lbrace 2 \right\rbrace\right = \left\lbrace \right\rbrace \cup \left\lbrace 2 \right\rbrace = \left\lbrace 2 \right\rbrace[/tex].

Apparently, the empty set on the left-hand side [tex]\left\lbrace \right\rbrace[/tex] is not the same as the [tex]\left\lbrace 2 \right\rbrace[/tex] on the right-hand side. Contradiction.

(c)

Part one: show that left-hand side is a subset of the right-hand side.

Let [tex]x[/tex] be a member of the set on the left-hand side.

[tex]x \in (A \backslash B) \cap C[/tex].

[tex]\implies x\in A \backslash B[/tex] and [tex]x \in C[/tex] (the right arrow here reads "implies".)

[tex]\implies x \in A[/tex] and [tex]x \not\in B[/tex] and [tex]x \in C[/tex].

[tex]\implies (x \in A\cap C)[/tex] and [tex]x \not\in B \cap C[/tex].

[tex]\implies x \in (A \cap C) \backslash (B \cap C)[/tex].

Note that [tex]x \in (A \backslash B) \cap C[/tex] (set on the left-hand side) implies that [tex]x \in (A \cap C) \backslash (B \cap C)[/tex] (set on the right-hand side.)

Therefore:

[tex](A \backslash B) \cap C \subseteq (A \cap C) \backslash (B \cap C)[/tex].

Part two: show that the right-hand side is a subset of the left-hand side. This part is slightly more involved than the first part.

Let [tex]x[/tex] be a member of the set on the right-hand side.

[tex]x \in (A \cap C) \backslash (B \cap C)[/tex].

[tex]\implies x \in A \cap C[/tex] and [tex]x \not\in B \cap C[/tex].

Note that [tex]x \not\in B \cap C[/tex] is equivalent to:

[tex]x \not \in B[/tex], OR[tex]x \not\in C[/tex], ORboth [tex]x \not\in B[/tex] AND [tex]x \not \in C[/tex].

However, [tex]x \in A \cap C[/tex] implies that [tex]x \in A[/tex] AND [tex]x \in C[/tex].

The fact that [tex]x \in C[/tex] means that the only possibility that [tex]x \not\in B \cap C[/tex] is [tex]x \not \in B[/tex].

To reiterate: if [tex]x \not \in C[/tex], then the assumption that [tex]x \in A \cap C[/tex] would not be true any more. Therefore, the only possibility is that [tex]x \not \in B[/tex].

Therefore, [tex]x \in (A \backslash B)\cap C[/tex].

In other words, [tex]x \in (A \cap C) \backslash (B \cap C) \implies x \in (A \backslash B)\cap C[/tex].

[tex](A \cap C) \backslash (B \cap C) \subseteq (A \backslash B)\cap C[/tex].

Combine these two parts to obtain: [tex](A \backslash B) \cap C = (A \cap C) \backslash (B \cap C)[/tex].

what are the two characteristics we look for when trying to solve a quadratic equation?


A. A positive coefficient for x^2 & the equation set equal to 0


B. Factor and cancel


C. Distribute like terms


D. There is no such thing as a quadratic equation

Answers

Answer:

Answer A makes the most sense by far.  

Step-by-step explanation:

Answer A makes the most sense by far.   However, strictly speaking, the coefficient of x^2 does not have to be positive if we're using the quadratic formula.  Using some other approach, such as factoring, obtaining a positive coefficient for x^2 is helpful.

To find 2.43 x 7.5, multiply__*_. Then, place the decimal point in the product to show
decimal places. PLEASE BRAINILY HELPPP

Answers

Answer:

16.825 is the answer for your question

Hanna is recovering hundreds of treasure chests from an ancient shipwreck. She is able to recover 8 chests
every 4 hours.
Complete the table using equivalent ratios.
Treasure chests
Hours
8
4
6
10

Answers

it’s 4 hours :) the person was right ^

A study was conducted to analyze the amount of time spent sitting at a desk for employees over a work day. The time spent sitting was recorded for a large sample of employees and found to follow a bell-shaped distribution with a mean of about 280 minutes. The smallest amount of time was 100 minutes and the largest amount of time was 460 minutes. Unfortunately, the standard deviation was not reported in the summary. Which of the following represent the most appropriate value for that standard deviation?
A. Options 60 minutes
B. 90 minutes
C. 180 minutes
D. 360 minutes

Answers

B. 90 minutes. I hope this helped!! :D

Determine the intercepts of the line
X-intercept: (__ , __)
Y-intercept: (__, __)

Answers

x-int: (3.5, 0)
y-int: (0, 2.5)

What is the estimated age of Earth?

Answers

Answer:

4.543 billion years i think, i apologize if im wrong

Step-by-step explanation:

Answer:

4.54 billion years

Step-by-step explanation:

Scientists use the layers of rock of the Earth's crust/core to estimate how old is the earth.

5. A boat traveled 27 miles in 2 hours. At this rate, how many miles will the boat travel in 4 hours?

Answers

54 because the time doubled just double the miles

HELP WILL GIVE BRAINLIEST to best answer

Answers

Answer:

A,B,C,D

Step-by-step explanation:

They are all the same equation on both sides of the equal sign and sense the variable is x on all of them whatever number you put on one side you have to put it on the other side therefore resulting in any solution you could think of.

Plz help I have this and i am being timed

Answers

Answer:

i think it is -1/2

Answer:

[tex] -\dfrac{13}{18} [/tex]

Step-by-step explanation:

[tex] -\dfrac{8}{9} - (-\dfrac{1}{6}) = [/tex]

[tex] = -\dfrac{8}{9} + \dfrac{1}{6} [/tex]

[tex] = -\dfrac{16}{18} + \dfrac{3}{18} [/tex]

[tex] = -\dfrac{13}{18} [/tex]


what is d divided by equals

Answers

Answer: X and Y

Step-by-step explanation: IF I REMEMBER dont get mad if you don’t get it right

How to solve ?? 3 (3z-6)=0

Answers

Answer:

Step-by-step explanation:

3(3z-6)=0

multiply your three with the 3z and the -6

9z-18=0

figure out what - 18 = 0

9z=18

9*2=18

z=2

hope this helps

Graph the line with this equation.
y= 2x + 2

Answers

Answer: it would be 2 to the right and 2 up

Step-by-step explanation:

2 right 2 up

Please help!!!
is a relation that is also a function.

Answers

Answer:

Step-by-step explanation:

If each input value leads to only one output value, classify the relationship as a function. If any input value leads to two or more outputs, do not classify the relationship as a function.

Are these relations functions?

Answers

Answer:

Letter B is yes because if you use the vertical line test, never anytime the vertical line intersect the graph in more than one point.

Y’all pls help me i have to turn this tonight

Answers

What’s the rest of the information they’re giving you? Is there an equation you can look at?

What is the Scale Factor going from the larger figure to the smaller figure?

Answers

Answer:

0.25

Step-by-step explanation:

scale factor=md/od

=0.5/2

0.25

Sloan was told to written paper of a science experiment should Express measurements and leaders 1.26 gallon 11.05 courts 14.2 to cups which shows how to calculate the number of liters he use if he use 5 cups of water divided by 5 4.22 divide 5 by 1.05 or multiply 5 by 1.05

Answers

Answer:

Multiply 5 by 4.22 because 5 cups of water is 4.22 liters

Multiply 5 by 4.22 because 5 cups of water is 4.22 liters.... I think

Solve the following inequality -9/2x grater then or equal to -1/4

Answers

Answer:

Did you mean [tex]\frac{-2x}{9} ?\\[/tex]

Please clarify so that I can work this problem out for you :)

Step-by-step explanation:

Write an equation in slope-intercept form for the line that passes through (1,-2) and (3, 7)

Answers

Answer:

y=9/2x -13/2

Step-by-step explanation:

i used a calculator i hope its right

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