Answer:
2.20
Step-by-step explanation:
Answer:
the answer it 2.20
Step-by-step explanation:
Which number is not in scientific notation? (5 points)
Group of answer choices
1.45 ⋅ 10−7
0.33 ⋅ 10−15
9 ⋅ 1019
7.8 ⋅ 106
Answer:
b
Step-by-step explanation:
i know it
Answer:
b
Step-by-step explanation:
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The answer would be c.
Multiplying by 1/4 would be the same as dividing by 4.
The quotient of k decreased by 9 and 4
in symbol form
Answer:
The answer is down below
Step-by-step explanation: k decreased by 4 is k - 4, so we write this as a fraction over 9.
Solve the equation.
11 = -5x-2
What does x equal
Answer:
Step-by-step explanation:
11=-5x-2 add 2 to both sides
13=-5x divide by -5
x= -13/5 or -2.6
The solution to the equation is x = -13/5.
To solve the equation 11 = -5x - 2, we need to isolate the variable x.
Now adding 2 to both sides:
11 + 2 = -5x - 2 + 2
This simplifies to:
13 = -5x
Next, we want to isolate the variable x, so we need to get rid of the coefficient -5.
Then divide both sides of the equation by -5:
13 / -5 = (-5x) / -5
This simplifies to:
-13/5 = x
Learn more about equations here;
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What is the value of X?
Answer:
13 I think
Step-by-step explanation:
13 because 29-16 is 13
Is this true or false ill give brainliest ^^
Answer:
True
Step-by-step explanation:
If g(x) = -25, then x =
Which verbal expression is represented by 1/2 (n-3)
(A) One-half n decreased by 3
(B)One-half n subtracted from 3
(C)The difference of one-half n and 3
(D)One-half the difference of n and 3
Answer: (D)One-half the difference of n and 3
Step-by-step explanation:
The correct verbal expression for the function f(n) = 1/2 (n-3) is →
One-half the difference of n and 3.
What is a verbal expression in mathematics?
A mathematical expression when written using verbal statements is known as the verbal expression of that mathematical expression.
Given is the following mathematical expression -
f(n) = 1/2 (n-3)
The given expression is -
f(n) = 1/2 (n-3)
Now, Assume A = (n - 3) represents the the difference of n and 3.
1/2 (A) represents its one half.
Therefore, the correct verbal expression for the function f(n) = 1/2 (n-3) is → One-half the difference of n and 3.
To solve more questions on Verbal Expressions, visit the link below-
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Help me on this problem
How is dividing each side of > x greater than 0 by a negative value different from dividing each side by a positive value?
Step-by-step explanation:
When you divide both sides of an inequality by a positive number, the inequality sign remains the same. When you divide both sides of an inequality by a negative number, you must reverse the inequality sign.
For example:
8 > 2 is a true inequality.
Let's divide both sides by 2:
4 > 1 is also a true inequality. The inequality sign remained > since we divided by a positive number.
Now let's start again with
8 > 2, and divide both sides by -2.
-4 > -1 is false. When the inequality sign remains the same after dividing both sides by a negative number, the inequality is no longer true. To keep the inequality true, we must change the inequality sign when dividing both sides by a negative number.
8 > 2
Divide both sides by -1.
-4 < -1 is true.
how is (y=15x) a proportional relationship?
Answer:
because y and x are equivalent and equal 15
Step-by-step explanation:
Answer fast!
20 is 250% of what number?
Answer:
8
Step-by-step explanation:
20/250% is 20/2.5 which is 8.
Hope this helps hit the crown :D
What is the product of (-a + 3)(a + 4)
Answer:
-a+12-a2
Step-by-step explanation:
A jar contains only pennies, nickels, dimes, and quarters. There are 16 pennies, 18 dimes, and 28 quarters. The rest of the coins are nickels. There are 84 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?
Answer:
I hope this helps you
Step-by-step explanation:
84-16=68
68-18=50
50-28=22
n=22
equation:84-(16+18+28)
Answer:
84 - (28+16+18)= n
Step-by-step explanation:
The parentheses are how many of the coins are not nickels. and if you add it then subtract it from the total amount you will get how many nickels were in the jar.
Write a rule for the nth term of the sequence.
Use your rule to find a 100-
-11, 5, 21, 37, 53, ...
Answer:
The rule for given sequence is: a_n = -27+16n
And the 100th term is: 1573
Step-by-step explanation:
Given sequence is:
-11, 5, 21, 37, 53, ...
Here
[tex]a_1 = -11\\a_2 = 5\\a_3 = 21\\a_4 = 37[/tex]
First of all, we have to find if this is an arithmetic sequence
For that purpose, the common difference has to be found. Common difference, denoted by d, is the difference between consecutive terms of an arithmetic sequence
So,
[tex]d = a_2 -a_1 = 5-(-11) = 5+11 = 16\\d = a_3 -a_2 = 21-5 = 16\\d = a_4-a_3 = 37-21 = 16[/tex]
As the common difference is same, the sequence is an arithmetic sequence
General rule for arithmetic sequence is:
[tex]a_n = a_1+(n-1)d[/tex]
Putting values
[tex]a_n = -11+(n-1)(16)\\a_n = -11+16n-16\\a_n = -27+16n[/tex]
For 100th term,
Putting n=100
[tex]a_{100} = -27+16(100)\\a_{100} = -27+1600 = 1573[/tex]
Hence,
The rule for given sequence is: a_n = -27+16n
And the 100th term is: 1573
If c varies directly as (r + 1) and c = 8, when r= 3, calculate the value of r when c= 20.
(4marks)
Answer:
r = 9
Step-by-step explanation:
Given that c varies directly as (r + 1) then the equation relating them is
c = k(r + 1) ← k is the constant of variation
To find k use the condition c = 8 when r = 3, then
8 = k(3 + 1) = 4k ( divide both sides by 4 )
2 = k
c = 2(r + 1) ← equation of variation
When c = 20, then
20 = 2(r + 1) ← divide both sides by 2
10 = r + 1 ( subtract 1 from both sides )
9 = r
c = k(r + 1)
8 = k(3 + 1)
8 = 4k
8/4 = k
2 = k
c=2(r + 1)
When c = 20, then
20 = 2(r + 1)
20 = 2r + 2
20 - 2 = 2r
18 = 2r
18/2 = r
9 = r
Therefore, the value of r is 9 when c is 20..
I need help!!!!!!!!!!!!!!!!!!!!!!
Answer:
A square
Step-by-step explanation:
If you don’t know the answer or full explanation, then please don’t answer at all. Thank you for helping!
Answer:
The domain of the function is (-6,6]
The range of the function is [-12.6)
Step-by-step explanation:
Domain and Range of Real Functions
The domain of a function is the set of all possible inputs for the function.
The Range is the set of values the function takes when x moves into the domain.
If the graph of a real function is given, we can find both by using the rules of the horizontal or vertical lines.
If an imaginary vertical line is moved along the x-axis, it can touch or not the graph of the function. All the values of x where the line and the graph cross each other belong to the domain of the function.
The vertical line crosses the function from x=-6 (not included since there is a hollow dot there) to x=6 (included since there is a solid dot).
Thus, the domain of the function is (-6,6]
Similarly, when an imaginary horizontal line is moved along the y-axis, it touches the function from y=-12 (included) to y=6 (not included).
The range of the function is [-12.6)
f(x)=x^2+5x what is the functions degree? what is the leading coefficient?
Answer:
the correct answer is d
Step-by-step explanation:
The leading coefficient is negative, so the graph rises on the left and falls on the right.
Therefore as x approaches infinity, y will be approaching negative infinity.
Which graph represents a proportional relationship?
A.
B.
C.
D.
Answer:
C
Step-by-step explanation:
A straight diagonal line going the middle of the graph is a proportianal relationship.
the answer is the letter
Step-by-step explanation:
the answer is C
A store increases the price of a sweater from $20 to $22.
What is the percent of increase?
Select from the drop-down menu to correctly complete the statement.
The percent of increase is
Choose...
Answer:
0.2
Step-by-step explanation:
Answer:
0.1
Step-by-step explanation: i took the quiz
will give the crown for speed
Answer:
yes it is a negative linear funtion
Step-by-step explanation:
I need help please help
What is the answer to 4(8z+1)+6
PLEASE HELP!!!!
Rathna made a deposit into a savings account five years ago. She has not made any other deposits or withdrawals to that account. The money, m, in the account has increased by 6% since the account was opened. Which expression does NOT represent the current balance of Rathna’s savings account?
m(1+0.06)
1.06m
m+0.06m
1+0.06m
Answer:
(D) 1+0.06m
Step-by-step explanation:
Let's say that m=$120
(A)= $127.2
(B)= $127.2
(C)= $127.2
(D)= $8.2
As you can see after I substituted in 120 for (m) and solved, D is the only equation that did not represent her current balance.
I hope this helps!
Answer:
D
Step-by-step explanation:
edge
37 pupils are asked if they walk or the get the bus to school. 7 of the boys walk to school.
There are 24 girls in total.
15 pupils get the bus.
How many girls walk to school?
Answer:
Total boys is 13
Total walks to school is 22
Girsl walk to school is 15
Thank you and please rate me as brainliest as it will help me to level up
Given: а || b & Z1= 22
Prove: c || d
There are 20 rows of seats in a concert hall: 25 seats are in the 1st row, 27 seats in the 2nd row, 29 seats in the 3rd row, and so on. How many seats are in the 19th row?
Answer:
61
Step-by-step explanation:
you add 2 seats for every row
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help please!!!!!! Write the equation in point-slope form for a line that passes through the point (4, -1) and has a slope of 6.
Answer:
y=6x-25
Step-by-step explanation:
y-y=m(x-x1)
y-(-1)=6(x-4)
y+1=6x-24
-1 -1
y=6x-25
Item 9
Write a linear function f with f(4)=−3 and f(0)=−2
Answer:
y = -x/4 -2
Step-by-step explanation:
Linear function is in the form;
y = mx + b
The first point is (4,-3)
so we have;
-3 = 4x + b
The second point is (0,-2)
Thus;
-2 = 0(x) + b
b = -2
Put this in the equation above
-3 = 4x -2
-3 + 2 = 4x
4x = -1
x = -1/4
So the equation is;
y = -x/4 -2
