i need help i dont understand​

I Need Help I Dont Understand

Answers

Answer 1

Answer:

d

Step-by-step explanation:


Related Questions

In 3 days, the temperature dropped 27 degrees.how many degrees per day did the temperature drop

Answers

Answer: The Temperature dropped 0.111 per day

Step-by-step explanation:

[tex]\frac{3 days}{27 degrees }[/tex]

3 divided by 27 = 0.111

Answer:

Answer: The Temperature dropped 0.111 per day

Step-by-step explanation:

3 divided by 27 = 0.111

How do I Factor 42p⁴+9p³q²-18p²q²​

Answers

Answer:

42p^4 + 9p^3q^2 -18p^2q^2 = p^2 (42p^2 + 9pq^2 - 18q^2)

Step-by-step explanation:

To answer this, we simply look for that term that is common to all

Looking at the given expression, we can see that the term we are looking for is p^2

Thus, we have that;

42p^4 + 9p^3q^2 -18p^2q^2 = p^2 (42p^2 + 9pq^2 - 18q^2)

When we multiply the term outside the bracket with each of the terms inside, we get back the original term

(-3,-2). (9. -15)
Slope

Answers

answer:

-13/12

Step-by-step explanation:

use the formula to find slope using points

it is: y2-y1/x2-x1

plug in point values into formula

-3 = x1. 9 = x2

-2= y1. -15 = y2

-15-(-2)/ 9-(-3)

-13/12

Answer:

m= -13/12

Explanation:

formula to solve: x1-y1

                            x2-y2

HELP ASAP , WILL GIVE MOST BRAINIEST
Use the drawing tools to graph the solution to this system of inequalities on the coordinate plane.
y> 2x + 4
x+y s6

Answers

The inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

We have two inequalities:

y > 2x + 4

x + y ≤ 6

We can plot the above inequality on the coordinate plane.

The inequalities representing the region between the two lines the lines are:

y = 2x + 4

x + y = 6

y > 2x + 4  (dashed line on the graph)

x + y ≤ 6     (solid line on the graph)

Thus, the inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.

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A combination lock has 7 digits. How many distinct combinations does this lock have if the numbers used have to be 0 through 5

Answers

Answer:

279,936

Step-by-step explanation:

Since there are 6 options for every digit, and seven digits

So,

6^7=279,936

The total number of  distinct combinations for making 7 digits lock is 2,79,936.

What is permutation?

A permutation is a mathematical technique that determines the number of possible arrangements in a set when the order of the arrangements matters.

Formula for permutation with repetition:

[tex]nP_{r} =n^{r}[/tex]

Where,

P is the total number of combinations.

n is the total number of items in a set

r is the total number of items to be selected from the set

According to the given question.

We have to form a lock that has 7 digits by using numbers from 0 to 5.

Total numbers of items in a set = 6

and total number of items to be selected = 7

Since, we have to form a lock of 7digits but we have only 6 digits. So we have to repeat this numbers so that we can form a 7 digit lock.

Therefore, the total number of combinations for making 7 digits lock is given by

[tex]6P_{7} = 6^{7}[/tex]

⇒[tex]6^{7}=2,79,936[/tex]

Hence, the total number of  distinct combinations for making 7 digits lock is 2,79,936.

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pls help 12 points asap

Answers

Answer:

circle: a sphere, cone, or a cylinder as 3d

I need help!!! I’ll mark you brainliest
This is timed!!

Answers

Answer:

Using the inverse composition rule you know that if (fog)=x and (gof)=x then the functions are inverses.

( g o f ) = ( 7 x + 1 ) − 1 7  this will result in (gof)=x ( f o g) = 7 x − 1 7 +1 = x − 1 + 1 =x

graphically you can check this if it seems that the functions are reflected over the line x=y.

Step-by-step explanation:

Pls helpppppppp
Sbhdcehebjshshwa on sd

Answers

Answer:

A

Step-by-step explanation:

Answer:

It's A

Step-by-step explanation:

It's in the middle of 0 and 1 (-1/2) on the x axis and for it to be in the middle of the two points the mid point stays on the x axis thus the y value (the value that goes up and down) is 0.

A balloon holds 5.2 cubic feet of air. The balloon is blown up larger to hold 8.3 cubic feet of air. What is the percent
of change for the volume of air inside the balloon?

Answers

Answer:

8.3+5.2

Step-by-step explanation:

if you complete it and it's correct I give you (brainlist)​help

Answers

Answer:

1. 9

2. 122cm squared

3. 189m

4. 30

5. b

Step-by-step explanation:

1. 27,36,45,54,63,72,81,90,99

2. 12x6=72 10x5=50 50+72=122

3. 21x9=189

4. 5x12=60 60/2=30

5  b because 150 divided by 4 doesn't give you a whole number.

What are some negative numbers and some positive numbers

Answers

Answer:

negative:-7, -8, -9

positive: 8,4,6

Step-by-step explanation:

Answer:

5 and -5

Step-by-step explanation:

you could use a number line and make it go two ways from 0, any number to the left is negative, any numbers right are positive.

On the evening news, the weatherman said their was a 60% chance of rain. Which
value is equivalent to 60%?

Answers

Answer:

0.6 is equivalent

Answer:

60/100=6/10=4/5

0.6

Step-by-step explanation:

these are all equivalent

HELP ASAP PLS!!! 30 POINTS AND BRAINLEST IF UR RIGHT
ANSWER ALL FOUR TO GET BRAINLEST!!!!!!

Answers

Answer:

C,D,A,A

Step-by-step explanation:

Answer:

1. B

2. B

3. C

4. B

The expression 3(x-9) is equivalent to
03(x)+9.
O 3(x)+3(9).
o 3(x) – 9.
3(x) – 3(9).

Answers

Answer:

3(x)-3(9)

Step-by-step explanation:

The brackets means you times everything within the brackets with everything outside it. So it would be 3 times x take away 3 times 9

please help i wasn’t taught this

Answers

Answer:

Step-by-step explanation:

B

Vivian has a 550 page book on folk tales . If she reads 9 pages everyday before falling asleep . how many days will it take her to finish the book​

Answers

Answer:

62 days

Step-by-step explanation:

Given that she reads 9 pages everyday before falling asleep. Then, on day one, she would read 9m pages.

On day 2, she would read another 9 pages, making 18 pages after 2 days. If she will finish the book in x days then

x = 550/9

=61 1/9 days

Converting the 1/9 into a day then, she will finish the book in 62 days, reading just a page on the 62nd day.

HELP I NEED HELP ASAP

Answers

Answer:

i think is B hope it helped sos if its wrong

Step-by-step explanation:

Ash is 4 years younger than Gary, and Oak is 5 times Gary's age. The sum of their three ages is 94. Find Gary's age. Show working out. Thanks!!

Answers

Answer:

Step-by-step explanation:

If Gary's age is 14 then

Ash is 4 years younger = 14 - 4 = 10

And Oak is 5 times Gary's age = 14 x 5 = 70

So total ages = 70 + 14 + 10 = 94

what is the solution of k=3.5??
the answers it gives me is
4k=14.5
3+k=3.8
7k=24.5
6.5+k=10.5

Answers

I’m pretty sure the answer you are looking for is k=24.5

WILL GIVE BRAINLIEST!!!!!
A bacteria grows exponentially so that it doubles every 12 days. There are 500 bacteria initially. Write a function that models the number of bacteria after t days.

Note is is NOT doubling every day! Careful.

Find the number of bacteria after 60 days.

Answers

Answer:

16000 bacteria after 60 days

Step-by-step explanation:

60 divided by 12 = 5

500 x 2= 1000

1000 x 2 = 2000

2000 x 2 = 4000

4000 x 2 = 8000

8000 x 2 = 16000

The function is, f(x) =  2x/12*t

And, the number is 16000 bacteria after 60 days.

What is function?

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

here, given that,

A bacteria grows exponentially so that it doubles every 12 days

let, initially the number of bacteria = x

after 12 days = 2x

i.e. after t days = 2x/12*t

So, the function is, f(x) =  2x/12*t

Now, we have,

60 divided by 12 = 5

So, the number of bacteria will be,

500 x 2= 1000

1000 x 2 = 2000

2000 x 2 = 4000

4000 x 2 = 8000

8000 x 2 = 16000

Hence,   the number of bacteria after 60 days is 16000.

To learn more on function click:

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asap! super urgent! help me outtt :'(

Answers

Answer:

3/47

Step-by-step explanation:

of the 47 total cars, 3 of them are a beige SUV

The correct answer is A, 3/47

You look for the cases where the vehicle is a beige car and an suv, there is three of them. You then divide by the total number of vehicles to find the probability of a beige suv.

Hope this helps your studies.

Find x
7x + 6
A) 8
C) -10
B) -5
D) -7

Answers

Answer:

A

Step-by-step explanation:

7x+6+72+46=180

7x=56

x=8

Pls help I’m being timed

Answers

I believe it’s B and not c

I'll give brainliest if correct/Maria, Jose, and Trey sent a total of 124 text messages over their cell phones during the weekend. Jose sent 3 times as many messages as Trey. Trey sent 9 fewer messages than Maria. How many messages did they each send?​

Answers

Answer:

Maria sent 32 messages

Jose sent 69 messages

and Tray sent 23 messages

Step-by-step explanation:

m = Maria

j = Jose

t = Trey

m+j+t = 124

j = 3t

t+9 = m $\Rightarrow$ t = m - 9

By substituting the value of t (third equation) into the second equation, we get:

j = 3(m - 9) = 3m - 27.

Finally, by sticking in the values of j, and t we just found out into the first equation, we get:

m + (3m - 27) + (m - 9) = 124

4m - 27 + m - 9 = 124

5m - 36 = 124

5m = 160

m = 32.

So, j = 69,

and t = 23.

What is -7 to the 4 power in expanded form?

Answers

Answer:

-7 x -7 x -7 x -7

Step-by-step explanation:

To the fourth power mean times itself four times

What is the remainder when 12 345 x 54 321 is divided by 9?
1
2
3​

Answers

I think 3 or 2 if this is not right am sorry ;-;

i need help

56 = -10 + 2x

Answers

56=-10+2x
Move the variable towards the left side and transition it’s sign in this problem
-2x+56=-10
Move the constant heading towards the right side and proceed to put a transition within it’s sign
-2x=-10-56
Now that you have that installed, you must calculate the difference here
-2x=-66
Now you divide -2 in both sides that has taken place in
x=33, therefore x=33 in 56=-10+2x

To check you can do 56=-10+2(33) and it will give you the right answer

Answer: x= 33

i subtracted -10 away from 56  and i got 66, then i divide 66 by 2x and got 33x.. which is your answer ;)  

URGENT WILL GIVE 10 PTS!!!!!!!!!!!!!

How do you find surface area and what is the formula for it?

Answers

Answer:

Surface Area is found by adding the areas of all the faces of the shape.

Step-by-step explanation:

Surface Area =2lengthwidth+2lengthheight+2heightwidth

express 0.42 as a fraction.

A. 42.1

B. 42/1

C. 100/42

D. 42/100 ​

Answers

Answer:

42/100

Step-by-step explanation:

42/100 because the .42 is in the hundredths place is the denominator of the fraction is 100

what is the inverse of y =8^x

Answers

Answer:

[tex]f^-1(x)=\frac{ln(x)}{ln(8)}[/tex]

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