Answers
Answer:
He added the exponents instead of multiplying them
Step-by-step explanation:
When a power is raised to a power (in this case, -8 was raised to the -2) the exponents should be multiplied, not added. So instead of j^-10 it should be j^16.
Related Questions
6x + 2y = 18 -4x - 2y = -6
Answers
Answer:
x=6, y = -9
Step-by-step explanation:
6x + 2y = 18
-4x - 2y = -6
Add the two equations together to eliminate y
6x + 2y = 18
-4x - 2y = -6
------------------------
2x +0y = 12
Divide by 2
2x/2 = 12/2
x = 6
Then find y
6x+2y = 18
6*6 +2y = 18
36+2y = 18
Subtract 36 from each side
36+2y-36 = 18-6
2y = -18
Divide by 2
2y/2 = -18/2
y = -9
Because you need to place both equation over each other and choose to solve for x or y
Rewrite the expression in the form x
Answers
Answer:
See below (I hope this helps!)
Step-by-step explanation:
When dividing exponential terms of the same base, we can simply subtract the exponents, therefore:
[tex]\frac{x^{6} }{x^{8} } = x^{(6-8)} = x^{-2}[/tex]
The diagonal of a square is 10m long. What is the length of the side of the square?(Give your answer to the nearest cm)
Answers
Explanation:
Form: d = a sqrt(2)
Where d = diagonal = 10m and a = side length
10 = a sqrt(2)
10/sqrt(2) = a
Rationalize the denominator:
10/sqrt(2) x sqrt(2)/sqrt(2)
= 10 sqrt(2)/2
= 5 sqrt(2)
Thus, a = 5 sqrt(2)m
Change to cm:
5 sqrt(2) x 100cm = 500 sqrt(2)cm
In a drama classroom, 75% of the students are chosen to perform a play. Of those choosen, 15% have singing roles. What is the probability that a student chosen for the play has a singing role?
Answers
Answer:
1/5 or 0.2
Step-by-step explanation:
probability=No of students with singing roles/No of people in the play15/75=1/5 or 0.2I'm on a 10 minute time limit. Please Answer!!!!! Show Work.
Answers
Answer:
623.64
Step-by-step explanation:
Really?!? Just use a calculator. I think thats right haven't done this in a while
hat is the value of x in the equation 4 x plus 8 y equals 40, when y equals 0.8? 4.6 8.4 10 12
Answers
Step-by-step explanation:
4x + 8y = 40
4x + (8×0.8) = 40
4x + 6.4 = 40
4x = 33.6
4x÷4 = 33.6 ÷ 4
x = 8.4
Answer:
8.4
Step-by-step explanation:
:D
Evaluate a−b+3c when .a=4, b=−2, and c=3. a−b+3c =4−( )+3∙ =4+ + =
Answers
Answer:
15
Step-by-step explanation:
4-(-2)+3(3)
4+2+9
15
Steps to solve:
a - b + 3c; a = 4, b = -2, c = 3
~Substitute
4 - (-2) + 3(3)
~Simplify
4 + 2 + 9
~Add
6 + 9
~Add
15
Best of Luck!
AB = 2x + 3, BC = 3x + 7, AC = 60. what does x represent
Answers
Answer:
AC=AB+BC
60=2x+3+3x+7
60=2x+3x+3+7
60=5x+10
60-10=5x
50=5x
x=10
-2 + 2 =
Need help with this asap❗️
Answers
Answer:
0
Step-by-step explanation:
Answer:
Zero
Step-by-step explanation:
Use inverse operations to find the inverse of y = 27x?
The inverse of y = 27x3 is y =
Answers
Answer:
y = (∛x)/3
Step-by-step explanation:
To undo the multiplication by 27, you multiply by its inverse:
(1/27)y = (1/27)(27x^3)
y/27 = x^3 . . . . . . . . . . . simplify
To undo the cube, you take the cube root:
(∛y)/(∛27) = ∛(x^3)
(∛y)/3 = x
Apparently, you want the inverse function, so you swap the variables:
y = (∛x)/3
_____
You can swap the variables at the beginning or end. It doesn't matter. If you do it at the beginning, you have ...
x = 27y^3
and you're solving for y. You use the same inverse operations that we used above.
Simplify the expression 2k+10k-(2k+3)+13
Answers
Using Accuracy and Precision
-vani is building a rectangular play area. The length of
me play area is 75 meters. The width of the play area is
- 3 meters. If she wants to cover the area in foam, how
much foam does she need to buy?
Due to the accuracy of the tape measure Avani used
the amount of foam needed to cover the play area is
38.9 square meters
Answers
Answer:
a little bit confusing
In a family of 4 children under 10 years old, the sum of the square of the ages of the 3 youngest is equal to the square of the age of the oldest. How old are these children
Answers
Answer: 2, 3, 6 and 7.
Step-by-step explanation:
We have four natural numbers A, B, C and D.
such that all of these numbers are smaller than 10, and:
A < B < C < D.
A, B and C are the ages of the smaller ones, and D is the age of the larger kid.
Now we have the relation
A^2 + B^2 + C^2 = D^2
We can write this as:
D = √(A^2 + B^2 + C^2)
And remember that D must be smaller than 10, then now we can play with the numbers A, B and C in order to find D.
Suppose for example:
A = 1, B = 2, C = 3
D = √( 1^2 + 2^2 + 3^2) = √(1 + 4 + 9) = √14
This is not a whole number.
Then we have that A^2 + B^2 + C^2 must be a perfect square.
The perfect squares we can aim for are:
4*4 = 16
5*5 = 25
6*6 = 36
7*7 = 49
8*8 = 64
9*9 = 81
now, looking at that comes to my mind to try to reach the 49.
because we can take the 36, add 4 to that (4 = 2*2) and then add 9 (9 = 3*3)
A^2 + B^2 + C^2 = 49
where we can use:
A = 2. B = 3 and C = 6
2^2 + 3^2 + 6^2 = 4 + 9 + 36 = 49
Then we have:
D = √(2^2 + 3^2 + 6^2 ) = √49 = 7
Then the ages of the children (for smallest to largest) are:
2, 3, 6 and 7.
Which of the following units is incommensurable with miles? Select the two correct answers. (1 point)
acres
inches
meters
yards
grams
Answers
Answer:
grams
Step-by-step explanation:
Miles measures distance
Looking through the given options; acres, inches, metres and yards are also units of length.
So, we can conclude that they are commensurable with miles.
However, grams measures weights.
Hence,
From the list of given options; grams is incommensurable with miles because they measure different entities.
Answer:
acres and grams
Step-by-step explanation:
Miles is a measure of distance. Acres is a measure of area, and grams is a measure of mass. Knowing this you should know that these two are the answer. Your welcome!
what is the additive of p when p = -19.57
Answers
The additive inverse of a number is just the opposite of the given number. For example; 2 and the additive inverse is -2.
If we apply this to the number we are given, we get 19.57
Best of Luck!
Anthony and Andrew raised money for charity in the ratio 3:7. Anthony raised $177. How much did Andrew raise?
Answers
Answer:
I'm pretty sure it's 413
Step-by-step explanation:
so I divided 177 by 3 to get 59
then multiplyed 59 by 7 to get 413
In order to get a grade of a 2 on your objective summary, what must you include
?
Answers
h -7/J = k solve for J
Answers
Answer:
see I need help for chemistry pls anyone here helps me I must submit before 10:30
Create a problem with at least 6 terms(numbers) that
would equal to -10. Try to create something different
than what others have created.
Answers
Answer:7+3=10 4+6=10 2+8=10 12-2=10 14-4=10 20-10=10 10+0=10
Step-by-step explanation:
How many solutions does the equation 4x + 2(x − 5) = 3(2x − 4) have? Group of answer choices infinitely many solutions no solution at least two solutions exactly one solution
Answers
Answer:
absolutley no solutions
Step-by-step explanation:
Nick's class did an experiment. They put the same amount of water into four paper cups. To start the temperature was the each cup They put the cups in four different places They left them for thirty minutes, Next they used a thermometer to find the temperature of each cup of water. Predict which location should have the highest temperate
Answers
Answer: in a sunny spot of the classroom and im guessing 95?
Step-by-step explanation:
The volume of a right rectangular solid is 384 ft3. Find the height of the solid, if the length is 3 times the width, and the height is twice the perimeter of the base.
Answers
Answer:
height is 32 ft
Step-by-step explanation:
384 = LWH?
(3W) (W) (H) = (3 x 2) (2) (16 x 2) = (6) (2) (32) = (12) (32) = 384 cubic ft
A building contractor estimated the cost of construction on a house would be between
$235.000 and $297,000. He has already spent $164,000. How much more can he spend
and remain within his budget?
Help please
Answers
Answer:
$133,000
Step-by-step explanation:
The upper end of the contractor's budget is $297,000. If he has already spent $164,000, he can spend as much as ...
$297,000 -164,000 = $133,000
without exceeding his budget.
He can spend $133,000 more and remain within budget.
__
Additional comment
Of course, he'd like to come in at the low end of the cost range, so would be very happy to spend only $71,000 more.
Jin’s soccer team has 4 coaches and 22 players, and his twin sister’s team has 2 coaches and 11 players. If the relationship between the number of players and coaches is proportional throughout the league, which ordered pair could represent the total number of coaches and players in the entire league?
Answers
Answer:
B
Step-by-step explanation:
Maria earns $80 per day working at a gas station. Write an algebraic expression to represent the amount of money she will earn in d days.
Answers
Answer:
The algebraic expression is 80d
Step-by-step explanation:
Maria's earnings per day = $80
Number of days= d
Total earnings for d days:
80d
Where,
80 is earnings per day
d is number of days
The algebraic expression is 80d
Algebraic equation is
y= 80d
Where
y= total income earned in d days
The expression is different from am equation because of the equal to sign(=)
i need to know the answer as soon as possible.
Answers
Answer:
Opinion B
Step-by-step explanation:
hope that will help you
Consider the Conditional Statement shown.
If a student plays the trumpet, then the student is in the school band.
Which is a counterexample to this Conditional Statement.
A student can play the trumpet, but not be in the school band
O A student can be in the band, but not play the trumpet
O A student may play the trumpet and still be in the school band
A student may not be in the band and not play the trumpet
Answers
Answer:
A student can play the trumpet, but not be in the school band
Step-by-step explanation:
A counterexample would prove the conditional false. That will be the case when the condition is met, but the conclusion is wrong. Such a case is ...
A student can play the trumpet, but not be in the school band
kim and stacy like to make necklaces. kim has 25 and stacy has made t necklaces. they have made a total of 57 necklaces all together.
Answers
Answer:
32
Step-by-step explanation:
you subtract 25 by 57 to show how many necklaces stacy made which is t.
FIRST TO ANSWER GETS BRAINLIEST
Answers
Step-by-step explanation:
3x - y = 74
4y = x
Replace x in the first expression by 4y
3x - y = 74 ➡ 3(4y) - y = 74
12y - y = 74
11y = 74
y = 74/11 we can use this to find x
4y = x
4 × 74/11 = x
296/11 = x
can you please help me
Answers
Answer:
I dont understand what their asking but there are three problems I do know. 2x+5=19 is a equation A=2l+2w is an equation and 3w+4 is an expression.
Step-by-step explanation: