Answer:
f −1 ( 2 ) = 4
Step-by-step explanation:
Answer:
f=y/x
Step-by-step explanation:
You received a 85, 88, and a 94 on your last three math exams. What grade would you need on your next exam to have an average of 90? (Show all work on your scratch paper and make sure you set up an equation)
You would need to get a ??????
to have an average of 90%.
Answer: 93
suppose: the grade we need on the next exam is x (x > 0)
to have an average of 90, we have the equation:
[tex]\frac{85+88+94+x}{4}=90\\\\<=>267+x=360\\\\<=>x=360-267\\\\<=>x=93[/tex]
so the grade we need on the next exam is 93
Step-by-step explanation:
[tex]suppose: the grade we need on the next exam is x (x > 0)
to have an average of 90, we have the equation:
\begin{gathered}\frac{85+88+94+x}{4}=90\\\\ < = > 267+x=360\\\\ < = > x=360-267\\\\ < = > x=93\end{gathered}485+88+94+x=90<=>267+x=360<=>x=360−267<=>x=93
so the grade we need on the next exam
[/tex]
What is (4/5) / (1/10)
The answer would be 8.
REMEMBER: Keep / Change / Flip
KEEP - 4/5
CHANGE - / to *
FLIP - 1/10 | 10/1
Now you have, 4/5 * 10/1. Just multiple across and you'll get 40/5. Now, divide 40 and 5 and you'll get your answer, 8.
[tex] \frac{ \frac{4}{5} }{ \frac{1}{10} } [/tex]
[tex] \frac{4}{5} \div \frac{1}{10} [/tex]
[tex] \frac{4}{5} \times \frac{10}{1} [/tex]
[tex] \frac{40}{5} [/tex]
[tex]8[/tex]
Evaluate 4^2/3 to one decimal place
Answer: 2.5
Step-by-step explanation:
first, transform the expression.
3√4^2
then, evaluate.
3√16
finally, simplify.
(alternate form): 2.51984
simplified to 2.5
Please help as soon as possible! I need to get this done now! Thank you so much
Answer:
sas
Step-by-step explanation:
Answer:
7. SAS
8. XZW is congruent to XZY
Write an explicit formula for an, the nth term of the sequence 33, 28, 23, ....
Answer:
I believe it's an = 33 - 5(n - 1) or 38 - 5n they both should work
Step-by-step explanation:
I'm think that explicit formulas are like an = a1 +d(n - 1) and just replace the Variables with the correct numbers
Which equation corresponds to the statement, to more than a number equivalent to Y
A.y=xsquared
B. Y= x+2
C. Y= 2x
D. Y= x/2
Answer:
English statement 'two more than a number equivalent to Y' can be algebraically represented as:
y = x + 2Step-by-step explanation:
Two more than a number means we need to add 2 to a number.
Let suppose the number be = xTwo more than the number 'x' = x+2As it is stated that two more than a number equivalent to Y.Equivalent means something is equal to the given expression.
Mathematically, the 'equivalent' is represented by the symbol '='.Thus, the English statement 'two more than a number equivalent to Y' can be algebraically represented as:
y = x + 2Who knows how to do this I TRULY NEED HELP
Answer:
x = 10
Step-by-step explanation:
It's given in the question that both the traingles JCD & JKL are similar. So their ratio of corresponding similar sides will be proportional to each other.
[tex] = > \frac{JD}{JL} = \frac{JC}{JK} = \frac{DC}{LK} [/tex]
[tex] = > \frac{15}{50} = \frac{8 + x}{60} = \frac{DC}{LK} [/tex]
[tex] = > \frac{15}{50} = \frac{8 + x}{60} [/tex]
[tex] = > 8 + x = \frac{15 \times 60}{50} = 18[/tex]
[tex] = > x = 18 - 8 = 10[/tex]
Christy bought movie tickets for herself and 5 of her friends and the total cost was $75.60. If each ticket was the same price with tax, how much did each ticket cost?
Which equations have the same value of x as Two-thirds (6 x + 12) = negative 24? Select two options.
4 x + 8 = negative 24
9 x + 18 = negative 24
4 x = negative 16
18 x + 36 over 2 = negative 24
4 x = negative 32
Answer:
4x+8=-24 and
4x=-32
Step-by-step explanation:
2/3(6x+12)=-24
or,12x+24=-72
or,x=-72-24/12
•°•x=-8
4x+8=-24
or,x=-24-8/4
•°•x=-8
4x=-32
or,x=-32/4
•°•x=-8
Answer:
the guys above me is correct
Step-by-step explanation:
4x+8=-24 and
4x=-32
I need help with these two .
Answer:
6 .Cant find the answer there
cos i had 3b( 9c +3a +c )
7. -3x -17y
A bakery makes 4 dozen raisin muffins and 8 dozen blueberry muffins. A dozen is 12 muffins.
How many more blueberry muffins than raisin muffins does the bakery make?
24 muffins
48 muffins
144 muffins
384 muffins
Answer:
144
Step-by-step explanation:
8x12 = 96 and 4x12= 48 and 96+48= 144
Find the domain of the graphed function.
-5
O A. -1 sxs3
B. X2-1
O C. x is all real numbers.
OD. -5 sxs 4
Answer:
A. -1 ≤ x ≤ 3
General Formulas and Concepts:
Algebra I
Domain is the set of x-values that can be inputted into function f(x)Step-by-step explanation:
According to the graph, our x-values span from -1 to 3. Since both are closed dot, they are inclusive in the domain:
[-1, 3] or -1 ≤ x ≤ 3
plzzzzz help me i need help on this guys? i dont know if its correct!
Answer:
Haha no. It obviously equals fish.
Seriously though, 1+1 = 2.
Three friends went to a ballgame. Each bought a ticket for $8 and they shared a bag of peanuts that cost $5. Which expressions represent how much they spent in all?
Answer:
13$ dollars
Step-by-step explanation:
I hope this helps
Solve the inequality:
7x < 3 + 7(x – 1)
Answer:
7=7
Step-by-step explanation:
Simplify
7+37+3 to 1010.
7x=107x=10
Divide both sides by:
77 x={10}{7}x= 7 10
Let x=10/7x= 7 10/7 -3=77× 7 10
−3=7
Cancel 7:
10-3=710−3=7
Simplify
10-310−3 to 77.
Use the midpoint formula to find the midpoint of a line (2,9) and (4,8)
Answer:
hope this helps you!
Step-by-step explanation:
(3, 8.5) is the answer
Which number line represents x<2
-
Answer:
C
Step-by-step explanation:
Less Than or equal to is a closed circle so it would first need to be a closed circle. Then, use the arrow trick(which way is the back of the symbol pointing) in this case it is to the left, so it would be C.
Solve for x and then solve for y.
Answer:
y = 62
Step-by-step explanation:
Since we need to solve for x first, we'll solve the left triangle first. A triangle equals 180 degrees, so with in mind:
x + 7 + 3x - 18 + x - 9 = 180
add like terms
5x - 20 = 180
add 20 to both sides
5x = 200
divide by 5
x = 40
Now we have x, input it into the equations for the second triangles:
x + 21 + x + 17 + y = 180
40 + 21 + 40 + 17 + y = 180
add/simplify
118 + y = 180
subtract 118 from both sides
y = 62
Answer:
x = 40° ; y = 62°
Step-by-step explanation:
The figure consists of 2 triangles. According to Angle sum property in a triangle , sum of measure of all the angles of a traingle is equal to 180° .
So ,
[tex](3x - 18) + (x + 7) + (x - 9) = 180[/tex]
[tex] = > 5x - 20 = 180[/tex]
[tex] = > 5x = 180 + 20 = 200[/tex]
[tex] = > x = \frac{200}{5} = 40[/tex]
Now using the angle sum property in another triangle ,
[tex](x + 21) + (x + 17) + y = 180[/tex]
[tex] = > y + (40 + 21) + (40 + 17) = 180[/tex]
[tex] = > y + 61 + 57 = 180[/tex]
[tex] = > y + 118 = 180[/tex]
[tex] = > y = 180 - 118 = 62[/tex]
What is the solution set of inequality 8n<32
Step-by-step explanation:
n < 4
Solution set =]_○○,4[
Michael is buying a new pair of headphones from an electronics store. The headphones cost $15.50, but Michael has a coupon that will reduce the cost by $4.00. He must pay 6% sales tax on the discounted price of the headphones. How much will Michael pay in total for the headphones, including tax?
Answer: Michael pays $12.19 for the headphones including the tax.
Step-by-step explanation:
The initial price of the headphones was $15.50
When Michael uses his coupon, the price is decreased by $4, then the new price will be:
$15.50 - $4 = $11.50
Now Michael must pay 6% for taxes (on the discounted price), then he must pay:
$11.50 + (6%/100%)*$11.50
$11.50 + 0.06*$11.50
$11.50*1.06 = $12.19
Then Michael pays $12.19 for the headphones including tax.
WHICH OF THE FOLLOWING REPRESENTS A NON LINEAR EQUATION
Answer:
y = 3/x
Step-by-step explanation:
Which system of linear inequalities has the point (2, 1) in íts solution set?
Answer:
C
Step-by-step explanation:
I did it on edg...
C is the only equation that has both sets saying less than or equal to.
Therefore, (2,1) is the solution within c.
can you help me please?
Suppose Adriana spends $ 73.00 dollars on T-shirts and pants. A T-shirt costs $5.50 and pants cost $25.50. This is an equation in two variables. What would be a solution (to the variable) above if she buys 2 pair of pants. the options are $51.00,$22.00,4,2
Answer:
I think the answer is $22.00 but I'm not 100% sure.
At the local candy store, Harper bought 4 ounces of jelly beans for $15.96. At that rate, how much would she pay for 7 ounces of jelly beans beans?
Answer:
$27.93
Step-by-step explanation:
First we divided 4 from 15.96 and got 3.99, so now we know that $3.99 is how much each ounce of jellybeans costs so now we multiply 3.99 times 7 to get our answer of 27.93.
evaluate the function below for the given value. f(x)=-3x+20; f(8)
9.
30% of the members of a club are female and 20%
of these females own cars. 30 female members in
the club own cars.
PROBLEM
SOLVING
(a) How many female members are there?
(b) What is the total number of members?
(c) What percentage of the club members are
females who own cars?
Which linear inequality is represented by the graph?
Answer:
The answer would be the last option. y<2/3x-1
Step-by-step explanation:
The slope is 2/3 and the line crosses the y axis at -1. Since the shaded part is below the line it would make the sign less than (<)
What is the value of the expression 10 25 32 64
Answer:
its 10
Step-by-step explanation:
2x5=10 or 2+2+2+2+2=10
Answer:
it is 32
Step-by-step explanation:
2x2x2x2x2=32
y’all i need help bro
Answer:
you got this
Step-by-step explanation:
f(4) = what equation will equal -2