Answer:
See Below
Step-by-step explanation:
First, isolate x. To do that add 3.5 to each side
x - 3.5 = -3.1
+3.5 +3.5
x= 0.4
Answer:
X = 0.4Step-by-step explanation:
X-3.5= -3.1 add 3.5 each side.
X = 3.5 - 3.1 simplify
X = 0.4 done!
A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z-score corresponding to the given value and use the z-score ti determine whether the value is significant.
Answer:
It is 4
Step-by-step explanation:
So idk which one cause this was to hard so some one please help me ✌
Answer:
11/4 the second one
multiply 2 and 4 then add 3
Which function is the inverse of f(x) = 2x + 3
Answer:
29
Step-by-step explanation:
because I do math for funnnnnsnnsnsnssn
Someone please help and let it be the right answer I'm failing math
Answer:
Step-by-step explanation: the triangle is negative 6, plus 18 half in the middle.
HELP PLZ I WILL GIVE U 10 POINTSS
Answer:
1/40
Step-by-step explanation:
You put 4/1 to put it into a fraction and then flip the fraction to times 1/10 (1/4)
to get the answer of 1/40
Cheryl wants you find the number of hours 7th graders do work at home each week. There are 297 boys and girls in 7th grade, Cheryl random surveyed 50 girls in the entire school to find a number of our 7th graders do homework each week described why she would get a biased sample
Answer: There are a total of 297 students in the 7th grade. Rough estimates would say that about half of that number are boys and half are girls. Asking only 50 random girls would be biased because not only would it not be all of the girls (the number of girls would be around 148 or 149) but it would also be ignoring the roughly 148 to 149 boys there are on estimate. The sample would be biased because it would be ignoring the opinions of more than half the seventh grade.
(FULL CREDIT TO maksimylian, I DID NOT WRITE THIS ANSWER)
Answer:
Randomly surveying 50 girls would most likely bring non-seventh-graders into the sample.
The sample also does not take any boys into account, and they most likely make up about half of the seventh-grade population.
The results would not be a representative sample of the population.
Step-by-step explanation:
From edge
HELP ME PLEASEEE. I WILL MARK U BRAINLIESTTTT.
Edgenuity’s sample response for this question:
Sublimation occurs because the atoms in a solid must gain enough energy to form a gass without passing through the liquid state. Low air pressure and large amounts of energy, often in the form of heat, allow the atoms to move fast enough to overcome the attractive forces between them.
If you need an original response here’s my take!!:
Sublimation happens when a solid turns directly into a gas. For this to happen, there must be low air pressure and immense heat energy. This allows atoms to quickly move and perform sublimation.
I need answer to all of them plz
Answer:
1. X=13
2. X=2
3. X=12
4. X=5
5. X=1
6. X=33
7. X= - 2
8.X= - 6
9.X=3
10.X=1
Thirty six divided by 9000 long division
Answer:
9000/6=1500
and
6/9000=0.00067
How do you write 0.000081 in scientific notation?
Briefly explain how to convert a fraction to its decimal
form.
Answer:
you just divide
Step-by-step explanation:
Just divide the top of the fraction by the bottom, and read off the answer!
Answer: So what my teacher always told me to do was act like a fraction was a tree. The tree always falls to the left which then outs the fraction as a division problem. You solve the division problem
Step-by-step explanation:
Ok so for example, lets use [tex]\frac{1}{2}[/tex]. Drawing it as a tree it then falls to the left. Therefore it becomes 1 ÷ 2. So 2 can not go into one therefore you need to put a decimal point at the top and add a zero behind the 1 under the bar. The 1 then becomes a 10, therefore 2 can go into 10 5 times. However the answer is not 5. You have to remember to bring the decimal point that you placed before the 5. In conclusion hte answer is .5 . This may be confusing because I am not able to include any photos but hopefully you'll get the point.
Over a ten-year period, the average price of a gallon of milk increased from $1.13 per gallon to $1.63 per gallon. To the
nearest percent, how much did the price of a gallon of milk increase?
14%
B 31%
C) 44%
D 69%
Answer:
c
Step-by-step explanation:
Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
#6 is 17 days
Step-by-step explanation:
This is how I answered it
1) 2750 = 550 + 125x
2) subtract 550 from each side
2750-550=2200
so the left over equation is:
2200 = 125x
3) divide each side by 125 to get x by itself
2200÷125= 17.6
4) you are left with: x = 17 days
how many times can a rectangle be reflected across an axis of symmetry so that it carries onto itself
Answer:
A rectangle can be reflected across an axis of symmetry so that it carries onto itself twice. Rectangles are geometric shapes with two lines of symmetry. One line of symmetry divides a rectangle in half horizontally, and the other line divides the shape in half vertically.
Step-by-step explanation:
Two times.
Or four times if the rectangle happens to be a square.
derive f=ma solve 9.1
Answer:
I hope it helped you and you understood it.
Answer:
we know that,
Force is directly proportional to rate of change of momentum.
→ F [tex]\propto[/tex] (Pv - pu)/t
→ F = k p (v - u)/t
→ F = k p a
Here, body must have some mass.
→ F = ma
Derived.
The files attached :)
I need help
Answer:
only doing one page you got the other :)
Step-by-step explanation:
|x|= 0.25
What value(s) of x make(s) the equation true?
A. -0.25 only
B. 0.25 only
C. 0.5 only
D. -0.25 and 0.25
E. -0.5 and 0.5
Simplify: 675 ÷ (6 + 9 ÷ 3)
The simplified form of the given expression is 75.
The given expression is 675 ÷ (6 + 9 ÷ 3).
We need to simplify the given expression.
What is PEDMAS rule?PEMDAS is an acronym used to mention the order of operations to be followed while solving expressions having multiple operations. PEMDAS stands for P- Parentheses, E- Exponents, M- Multiplication, D- Division, A- Addition, and S- Subtraction
Now, in the given expression simplify the bracket.
That is, (6 + 9 ÷ 3)=(6+3)
=9
Now, 675 ÷ 9=75
Therefore, the simplified form of the given expression is 75.
To learn more about the PEDMAS rule visit:
https://brainly.com/question/24086845.
#SPJ2
Algebra 1. 9th Grade
-12-8=5/2x
Answer:
-1/8
Step-by-step explanation:
1) -12 - 8 = -20
2) -20 = 5/2x
3) (-20)(2x) = 5
4) -40x = 5
5) x = -5/40 = -1/8
Hope this helps!
Alex has 19 marbles,
Emily has 5 marbles.
How many more marbles does Alex have than Emily?
marbles
Answer:
14!
Step-by-step explanation:
Subtract 5 from 19 and get 14!
Help please solve by factoring
We know that 6x(-7) is -42 and we also know that 6+(-7) is -1.
So we can write
[tex]x^2+6x-7x-42[/tex]
[tex]x(x+6)-7(x+6)[/tex]
[tex](x-7)(x+6)[/tex]
So our solutions are [tex]x=7,-6[/tex]
Ratio to percent 16:25
2. Simplify the following expression:
(10 – 7r - p2)+(-6r2 - 18 +5r)
Your answer
Answer:
-p^2-6r^2-2r-8
Step-by-step explanation:
When you simplify it you get that. Hope this helped :)
The solution to the given expression is -8 - 2r - p² - 6r² which is determined by performing the arithmetic operation.
What is the algebraic expression?Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The given expression is given in the question
(10 – 7r - p²) + (-6r² - 18 +5r)
Open the parentheses and rearrange the terms,
10 - 18 - 7r + 5r - p² - 6r²
Apply the arithmetic operation in the likewise terms,
-8 - 2r - p² - 6r²
Therefore, the solution to the given expression is -8 - 2r - p² - 6r²
Learn more about the algebraic expression here :
brainly.com/question/21751419
#SPJ2
At a hardware store, you can buy a set of four wrenches for seven dollars and a set of 16 screwdrivers for $28. The prices are proportional. True or false?
Answer:
Yes
Step-by-step explanation:
The constant is $1.75 each
What is the greatest common factor 12x^5 and 8x^3
Hey there! I'm happy to help!
Let's see what makes 12x^5.
3·2·2·x·x·x·x·x
And for 8x^3...
2·2·2·x·x·x
We see that both of these have two 2s and 3 xs, so our GCF is 2·2·x·x·x which is 4x^3.
Have a wonderful day! :D
a cylindrical tank of radius 2.5m and height 1.6m initially contains water of depth of 20cm .water is pumped into the tank at the rate of 1.35litres per second.giving your answer in the nearest minute calculate the time in hours and minute it takes to fill the tank
Differentiate an arithmetic sequence from a geometric sequence?
Answer: Arithmetic sequences follow terms by adding, while geometric sequences follow terms by multiplying.
Step-by-step explanation: Please mark Brainliest!
A point lies on AB¯¯¯¯¯ and is located 3/7 the distance from A to B. What are the coordinates of the point? (4, 3) (7, 3) (9, 3) (12, 3)
Answer:
(4,3)
Step-by-step explanation:
This doesn't even take any math really, just deductive reasoning :)
We know the line segment stretches from one to 15, meaning there are 14 points on the line as there is (1,2,3, etc.)
14/2 obviously equals 7, so just plug it in from there.
12 is too far up on the line to be less than half, so (12, 3) is wrong
^ this goes for (9, 3) as well
7 is literally the halfway marker, so there is no way it could be (7, 3)
Making the answer (4, 3) because not only is it the last one remaining but it makes the most sense, being less than one half of the segment
Victoria is going to use a computer at an internet cafe. The cafe charges an initial fee to use the computer and then an additional price per minute of usage. It is known that the total charge to use a computer for 5 minutes would be $6 and that the additional rate per minute of use is $0.60. Write an equation for C,C, in terms of t,t, representing the total cost of using a computer for tt minutes at the internet cafe.
Step-by-step explanation:
Given that the initial charge/fee for the first 5 minutes is $6
and also the additional rate per minutes is $0.6
we can model the total charges after the equation of a straight
that y= mx+c
now using the required notation
C= 0.6t+ 6
comparing this with the equation of a straight line
the constant term c is $6 flat rate for the first 5 minutes
the gradient 0.6 is m
the dependent variable x is t
and the cost C is y
Answer:
i believe its c=0.60t+3
Step-by-step explanation:
Simplify 2(3x-9)+(2c-10)
Answer: 2c + 6x - 28
Step-by-step explanation:
6x -18 + 2c - 10
add like terms
2c + 6x - 28