please help me. this is my last problem and i’m clueless.

Please Help Me. This Is My Last Problem And Im Clueless.

Answers

Answer 1

Answer:

-3

Step-by-step explanation:

so you SUBSTITUTE -2 in for z

ok i think they are trying to be tricky here

so

-1 - (-(-2))

inside parentheses, the two negatives are going to cancel eachother out.

now you have

-1 - (2)

which is

-1 - 2

-1 minus 2 is -3


Related Questions

Two bags of flour have a total weight of 8 3/4 pounds. What could be their individual weight

Answers

Answer:

4 3/8 lbs.

..................

There are infinitely many possible values for the individual weights of the bags of flour that would add up to a total weight of 8(3/4) pounds.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

The individual weights of the bags of flour must add up to a total weight of 8 3/4 pounds.

We can express 8 3/4 as an improper fraction by multiplying the whole number 8 by the denominator 4 and adding the numerator 3, giving us 35/4.

Therefore, we can set up an equation:

x + y = 8 3/4

where x is the weight of one bag of flour, and y is the weight of the other bag of flour.

We can simplify 8 3/4 to 35/4, so the equation becomes:

x + y = 35/4

We can solve for one variable in terms of the other:

x = 35/4 - y

Now we can substitute this expression for x into the original equation and solve for y:

x + y = 35/4

(35/4 - y) + y = 35/4

35/4 = 35/4

This equation is true for any value of y.

Therefore, there are infinitely many possible values for the individual weights of the bags of flour that would add up to a total weight of 8(3/4) pounds.

For example, one bag could weigh 4 pounds and the other could weigh 4 3/4 pounds, or one bag could weigh 3 pounds and the other could weigh 5 3/4 pounds, and so on.

Thus,

There are infinitely many possible values for the individual weights of the bags of flour that would add up to a total weight of 8(3/4) pounds.

Learn more about expressions here:

https://brainly.com/question/3118662

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The set of negative energy is greater than -7

Answers

Answer:

i don't have lesion kau you forever i am sorry

Step-by-step explanation:

your browser to mo Lego house of blues festival

Find each missing measure.

Answers

Answer:

∠x = 32°

∠y = 58°

∠z = 32°

Step-by-step explanation:

∠x = 180° - 148° = 32°  

∠z = 32° because it is vertical to ∠X (32°)

∠y = 90° - 32° = 58°

Anybody know whats 0x0?

Answers

Answer: I think it’s uhh I think it’s uhh i think it’s uh carrot

Step-by-step explanation:

Answer: 0

anything times 0 is 0

If Sheyenne walked 8 miles in 2 hours what was her speed?

Answers

Answer:

4 miles per hour

Step-by-step explanation:

Answer:

4mph

Step-by-step explanation:

8 divided by 2 and boom the answer.Hope this helps.

sum of the age of son and his father is60 and the six year ago the age of father is five time the son what is the age son ?​

Answers

Step-by-step explanation:

...hope it help u.... ..

I WILL GIVE BRAINLIEST !!!What is the product of 4 and 7?
7
O
o
8 9
14
9
14
7
8

Answers

The product of 4 and 7 would be 28!
When someone says the product of x means they are looking to multiply!

Answer:

8? I think I'm not quite sure. lmk

Which intervals are most appropriate for a histogram
displaying the mileage ratings?
The list shows the mileage rating (in mpg) for some 2019
vehicles with all-wheel or four-wheel drive.
11, 13, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 17, 18,
18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21,
21, 21, 21, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 24, 24,
24, 24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 27, 28, 29,
30, 31, 32, 33, 34
O 0-15, 15-30, 30-45
O 0–20, 20-40, 40-60
O 10-15, 15-20, 20-25, 25-30, 30-35
O 0-5,5–10, 10-15, 15-20, 25-25, 25-30

Answers

Answer:

C. 10–15, 15–20, 20–25, 25–30, 30–35

Step-by-step explanation:

Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

3

Step-by-step explanation:

Answer :
X = 3

Step-by-step explanation :

Here is your answer
sin theta = opposite/ hypotenuse
sin 30 = X / 6
1/2 = X/ 6
X =1/2 x 6
X = 3

Hope it helped you :)

The teacher wants to group 87 students into teams which have the same number of students. There must be more than one team. At least how many teams are there and how many students are there in each team?​

Answers

Answer:

3 teams and 29students in each team.

let, the team be x,y,&z

given all the team r equal so, x=y=z

x+y+z=87

3x=87

x=87/3

x=29

we get, x=y=z=29

hope it helps.

For each of the following coordinate
pairs, write the Quadrant where they would
be located. You do not have to use Roman
numerals.

(-3, 2) Quadrant ?
(-6, -8) Quadrant ?
(4, 10) Quadrant ?
(9,-5) Quadrant ?

Answers

4, 3, 1, 2 are the answers

Which statement about +- 3 - 7 = 3 is true?
X=-4 is an extraneous solution.
X X=-4 is a true solution.
x = 4 is an extraneous solution
x = 4 is a true solution.
Answer is in the picturee

Answers

Idea man it’s crazy tho

Among all pairs of numbers whose difference is 6, find a pair whose product is as small as possible. What is the minimum produc The pair of numbers whose difference is 6 and whose product is as small as possible is ? ​

Answers

Answer:

pairs of numbers is 3,-3

Step-by-step explanation:

The computation is shown below:

Let us assume a and b are the pairs of the numbers whose difference is 6

i.e.

a - b = 6

a = 6 + b

So

f = ab

f = (6 + b)b is minimum

Now

d ÷ db (6+ b)b = 0

(6+ b) + b = 0

2b = -6

b = -3

Now

a  = 6 + b

= 3

So pairs of numbers is 3,-3

An IQ test is designed so that the mean is 100 and the standard deviation is 24 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 8 IQ points of the true mean. Determine the required sample size using the TI-83/84. The required sample size is________

Answers

Answer:

The required sample size is 35.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

Determine the required sample size.

The required sample size is n, which is found when [tex]M = 8[/tex]

The standard deviation of 24 means that [tex]\sigma = 24[/tex]. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]8 = 1.96\frac{24}{\sqrt{n}}[/tex]

[tex]8\sqrt{n} = 1.96*24[/tex]

Simplifying both sides by 8

[tex]\sqrt{n} = 1.96*3[/tex]

[tex](\sqrt{n})^2 = (1.96*3)^2[/tex]

[tex]n = 34.6[/tex]

Rounding up:

The required sample size is 35.

Choose the function whose graph is given below.

A. y = sec X
O B. y = tan x
O C. y = CSC X
O D. y = cotx

Answers

Answer: B. y = tan x

Step-by-step explanation:

The function whose graph is show below will be tan x. Then the correct option is B.

What is trigonometry?

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The secant of angle x is not defined, for some value of x. Then the domain of the sec x will be

Domain = R – (2n + 1) π/2

But the graph of the sec x looks like U. Then it is incorrect.

The tangent of angle x is not defined, for some value of x. Then the domain of the tan x will be

Domain = R – (2n + 1)π/2

Then it is correct.

The co-secant of angle x is not defined, for some value of x. Then the domain of the csc x will be

Domain = R – nπ

Then it is incorrect.

The co-tangent of angle x is not defined, for some value of x. Then the domain of the cot x will be

Domain = R – nπ

Then it is incorrect.

Then the correct option is B.

More about the trigonometry link is given below.

https://brainly.com/question/22698523

#SPJ5

20 10
40
30.
15
40
70
25
20
30
100
40
50​

Answers

60? I don’t know what this mean

2.75 round to the nearest hundreth

Answers

Answer:

Its already rounded. Rounded to tenths place would be 2.8

Step-by-step explanation:

5 or higher makes you round up. if its a 4 or lower it would stay the same.

PLEASE I NEED HELP CLICK ON THIS IMAGE

Answers

Answer:

D, 261

Step-by-step explanation:

Divide all of the answer choices by 9. The answer is the one with the whole number. 261/9=29 29=whole number so D is the answer.

Hope this helps! If it did, please give brainliest! It would help a lot! :D

Answer:

261

Step-by-step explanation:

If the farmer used 9 boxes and each had the same number, we need to find the number that's divisible by 9.

There's a great fact - a number is divisible by 9 if its sum of digits is divisible by 9.

Let's use that fact on the answers first:

281 -> 2 + 8 + 1 -> 11 -> 1 + 1 -> 2; not divisible by 9

273 -> 2 + 7 + 3 -> 12 -> 1 + 2 -> 3; not divisible by 9

261 -> 2 + 6 + 1 -> 9; divisible by 9

Please note that we could just say that 11 is not divisible by 9, but I wanted to show that we can do it again - nothing stops us and it still works.

To know why this method works, note that a number ABC is equal to:

100 * A + 10 * B + C = 99 * A + 9 * B + (A + B + C) = 9*(11*A + B) + (A + B + C)

And we know that 9*(11*A + B) is divisible by 9 because it's literally 9 times something. So A+B+C is equal to ABC minus something divisible by 9, and that proves what we needed.

In a certain tropical forest, litter (mainly dead vegetation such as leaves and vines) forms on the ground at the rate of 10 grams per square centimeter per year. At the same time, however, the litter is decomposing at the rate of 80% per year. Let f(t) be the amount of litter (in grams per square centimeter) present at time t. Find a differential equation satisfied by f(t).

Answers

Answer:

df(t)/dt = 10 - 0.8f(t)

Step-by-step explanation:

The net rate of change, df(t)/dt = rate in - rate out

The rate in = rate litter forms on ground = 10 g/cm²/yr

Since f(t) is the amount of litter present at time, t, in g/cm² the rate out = rate of decomposition = the percentage rate × f(t) = 80% per year × f(t) = 0.8f(t) g/cm²/yr

Since df(t)/dt = rate in - rate out

df(t)/dt = 10 - 0.8f(t)

So the desired differential equation is

df(t)/dt = 10 - 0.8f(t)

Please help I will give brainliest

Answers

Answer:

i cant see the picture with the question

Step-by-step explanation:

i cant see, sorry

what is the name of this figure plz help

Answers

its a triangle no? just  3D

The answer is Triangular prism

ASAP I WILL GIVE 100 POINTS AND BRAINIEST ASAP
Find the length of the model train.

Answers

Answer:

It would be 7.5 inches.

Hope this helped!!

The answer is 7.5 inches

Find the measurement of KL (round your answer to the nearest one hundredth. Which theorem did you use?

Answers

9.434, Pythagorean theorem

Using the Pythagorean theorem:

KL = sqrt( 8^2 + 5^2)

KL = sqrt( 64 + 25)

KL = sqrt(89)

KL = 9.43

The answer is 9.43

An online store sells specialty bags. They charge $8 for shipping and $21 per bag ordered.

Write an expression that can be used to find the cost in dollars for b bags including shipping.

Answers

Answer:

b=21x+8

Step-by-step explanation:

she sell bags 21 dollars for every bag(x) and they only add 8 dollars 1 time

PEASE HELP DUE IN 5 MINUTES I WILL MARK YOU BRAINLIST



Find the area of a regular hexagon with side length of 3 ft. Round your answer to the nearest tenth
7.8 ft2
11.7 ft2
23.4 ft2
40.5 ft2​

Answers

23.4 ft2

Step-by-step explanation:

jvuctctctcrxrxrxrxrxr

multipy the expreshions (2h+2.7) (2h-27)​

Answers

Answer:

[tex]4h^2-48.6h-72.9[/tex]

Step-by-step explanation:

[tex](2h+2.7) (2h-27)\\4h^2-54h+5.4h-72.9\\4h^2-48.6h-72.9[/tex]

WILL GIVE BRAINLIEST

Answers

b! you can even look up pythagorean triples to check :)
The correct answer would be B. (3, 4, 5)

There is 12 inches in a whole hole how many inches is in a half of a hole?

Answers

Answer:

6 is hoing to be your answer

Answer:

6in

Step-by-step explanation:

At the end of the first day three of the cricketers scored these runs 28, 61 and 39
The man adds them together and the total score is 128
But his friend checks his calculation by using approximation
Show how the friend used approximation to check the calculation

Answers

Answer:

His friend took one from 61 and added it to 39. That made it easy to mentally add 40 and 60 to get 100. Then he mentally added 28 to 100 to get 128.

An artist can paint
23,760 square feet in
12 hour. How many
square feet can they
paint in 2 hours?


also i need to justify my answer so give me the steps and what to rught

Answers

Answer:

23,760/12=1980

1980x2=3960

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