[tex]f(x) = {x}^{2} + 7 [/tex]
[tex]y = {x}^{2} + 7 [/tex]
Subtract the sides of the equation minus 7
[tex]y - 7 = {x}^{2} [/tex]
Take the square root of both sides of the equation
[tex]x = \sqrt{y - 7} [/tex]
So ;
[tex] {f}^{ - 1}(x) = \sqrt{x - 7} [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
A passenger train can travel, on average, 20 miles per hour faster than a freight train.
If the passenger train covers 390 miles in the same time it takes the freight train to cover 270 miles, then how fast is each train?
Answer:
The speed of the passenger train is 65 miles per hour and the speed of the freight train is 45 miles per hour.
Step-by-step explanation:
Simplify: 45÷3+2×8-12+42
Show working
45divided by 3=15
15+2multiplied by 8 -12+42
First multiple 2 and 8=16
15+16-12+42
15+16=31
31-12+42
31-12=19
19+42=61
Answer is61
help please!! due today! wil maRK BRAINLIST
helped needed only have 21 minutes
Answer:
36 degrees
Step-by-step explanation:
The total of the angles is only 90, so to get the answer all you would have to do is 90 - 54 to get 36
I will give brainliest
Answer:
Answer:
Hi i just saw your question about giving away bloxburg money . I was asking for help with money and looking up bloxburg while waiting. Within 5 minutes SNOG deleted not 1 but 2 questions there were nothing wrong with them either. Please can you help me by donating so I can give my sister and I a good bloxburg house?
I kno wu need help but Im sorry for answering it with this but I had to find your latest question to find you PLEASE HELP ME!!! I will find some way to repay you!
Nancy drew a scale drawing of a theater. In the scale Nancy used for the drawing, 1 inch represents 3 feet. The stage is 16 inches long in the drawing. How long in feet is the actual stage?
Answer:
The answer to this question is 48 feet
Step-by-step explanation:
You would see that 1 inch is 3 feet then you would multiply 3 and 16 to receive 48
What is the slope-intercept form of the equation of the line that passes through the points (-3, 2) and (1,5)?
Answer:
y= 3/4x+17/4
Step-by-step explanation:
You're welcome :)
1 5/6 + 1 1/3 help will give points
Answer:
37/6
Step-by-step explanation:
15/6+11/3=37/6
6 1/6,6.16
Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches and the backboard has a shadow of 7 feet, then how high is the top of the backboard?
A.
9.41 feet
B.
8.4 feet
C.
9.66 feet
D.
6.63 feet
Help me plz 6th grade
Answer:
Go back to -1
Step-by-step explanation:
4 - -5 = -1
Find three consecutive EVEN integers such that the sum of the smallest number and twice the middle number is 20 more than the largest number.
Answer:
10, 12 and 14Step-by-step explanation:
x - an integer
2x - an even integer (the first and the smaller of the three)
Consecutive integers increase always by 2
2x+2 - next even integer consecutive to 2x (the middle one)
2x+2+2=2x+4 - the last consecutive even integer (the largest)
2•(2x+2) - twice the middle number
2x+2•(2x+2) - the sum of the smallest number and twice the middle one
2x+4+20 - 20 more than the largest number
2x+2•(2x+2) = 2x+4+20
2x + 4x + 4 = 2x + 24
-2x -2x
4x + 4 = 24
÷2 ÷2
2x + 2 = 12 ← the middle number
-2 -2
2x = 10 ← the smallest number
2x+4 = 10 + 4 = 14
Check: 10+2•12=34; 14+20=34
15 POINT PLZ HURRY
If f(n) = n2 - 2n, which of the following options are correct?
Select all that apply.
f(2) = 0
f(-2) = 0
f(1) = 3
f(5) = 35
f(-4) = 24
Answer:
A. & E.
Step-by-step explanation:
A.) 4-4=0
B.) 4+4=8
C.) 1-2=-1
D.) 25-10=15
E.) 16+8=24
2k + 5 — 7k = 8 + 3
I need someone to help me out with this one please.
Answer:
-1.2
Step-by-step explanation:
2k+5-7k=8+3
2k-7k+5=11
-5k=11-5
-5k=6
-5k/5=6/5
k=-1.2
Triangle XYZ has vertices X(8, −2.3), Y(6.5, 5), and Z(6, 3). When translated, X′ has coordinates (3.8, −0.3). Enter a rule to describe this transformation. Then find the coordinates of Y′ and Z′. Drag and drop each number into the correct box to complete the statements.
Anybody wanna help?ASAP?
Answer:
x=113º
Step-by-step explanation:
67 + x is a linear pair
they would be supplementary if they were next to each other
the 67º represents the acute angle directly next to xº
so
x+67= 180º
subtract 67º from both sides
180-67=113
x=113º
please please help me!!
Answer:
-37/100
Step-by-step explanation:
-0.37 is -37 over 100
Answer:
Step-by-step explanation:
37/100
Which statements are correct about the following expression? Select TWO that apply.
2x2 + 14x – 8
Answer:
12x
Step-by-step explanation:
2x2=4
4+14x-8
4-8+14
-4+14x=12x
write the integers that are closest to the the number in the middle to complete the statement.
___<square root of 73<___
Answer:
see explanation
Step-by-step explanation:
Consider perfect squares on either side of 73, that is
64 < 73 < 81 , then
[tex]\sqrt{64}[/tex] < [tex]\sqrt{73}[/tex] < [tex]\sqrt{81}[/tex] , that is
8 < [tex]\sqrt{73}[/tex] < 9
Answer:
8<square root of 73<1
i think this are the integers that are closest to the number in the middle.
What is 8.170 in word form
Answer:
eight and seventeen hundredths
Step-by-step explanation:
What is the slope of the line on the graph?
Please help asap
the slope would be 2/4
3n - 7m for n = 5 amd m = 4
Answer:
-13
Step-by-step explanation:
first you will subsitute 5 for n in the equation to get 3(5)-7m
next you will subsitute 4 for m in the equation to get 3(5)-7(4)
then solve: 3x5= 15
7x4= 28
15-28= -13
Y = X3 – X –1 if x = -1, Y = ?
Answer:
-3
hope this helps!
Step-by-step explanation:
(-1)3 - (-1) - 1 =
-3 - (-1) - 1 =
-2 - 1 = -3
Y = ( -1 ).3 - ( -1 ) - 1
Y = -3 + 1 - 1
Y = -3
Claire bought 10 chicken wings for $17.00. If Claire spent $5.10, how many chicken wings did she buy?
A box contains 21 green marbles. Green
marbles make up 15% of all the marbles
in the box. How many total marbles are in
the box?
8
HELP ASAP! PLZZ
Answer:
pts
Step-by-step explanation:
5 fre pts :))))
A hat cost $20.
A customer has a 100-dollar bill.
The seller doesn't have change so he gets it from his neighbor.
After the customer leaves, they found out that the $100 was fake.
The seller returns the $100 to the neighbor.
How much money did the seller lose?
Answer:100
Step-by-step explanation:
PLEASE ANSWER THIS ASAP !!!!!
Answer:
f(2) = -5
Step-by-step explanation:
For this problem, we are evaluating the graph of f(x), meaning at the value of x, we want the y-value.
Note, when x = 2 on the graph, the only y coordinate available is y = -5.
Hence, when we evaluate f(x) for x = 2, we get y = -5. f(2) = -5.
Cheers.
you make a salad and share with friends your sister eats 1/3 of it before they arrive (it is a a and b question pls help)
Answer:
Sister Is a PIG
Step-by-step explanation:
and Your Friends Gets her Scraps
Lines x and y are parallel. Write an equation that represents the relationship between b and e. Explain how you know this equation is always true. Your explanation should use AT LEAST TWO of the following terms: vertical angles, corresponding angles, congruent, supplementary.
please help
Answer:
m∠b + m∠e = 180°
Step-by-step explanation:
Lines x and y are the parallel lines and a transversal line is intersecting these lines.
∠b ≅ ∠h [Vertical angles]
∠h ≅ ∠f [Corresponding angles]
Therefore, ∠b ≅ ∠f [Congruent angles]
m∠f + m∠e = 180° [Supplementary angles]
m∠b + m∠e = 180° [Since, ∠b ≅ ∠f]
Therefore, equation representing the relation between ∠b and ∠e is,
m∠b + m∠e = 180°
The required equation that represents the relationship between b and e is m<b + m<e = 180
From the given diagram, we can see that the line x and y are cut by a transversal. This shows that the following statements are true;
m<b and m<g are supplementary i.e m<b + m<g = 180
Also m<b and m<f are equal (alternate interior angle)
m<b = m<d (vertically opposite angle)
Also, since m<d and m<e are supplementary angles (angle on a straight line), then m<b and m<e are also supplementary
Hence the required equation that represents the relationship between b and e is m<b + m<e = 180
Learn more here: https://brainly.com/question/22309882
What is Math POSTER I don't know what it is
if u guys did it before and u still have the paper can u guys show me thank u
PLZ HELP THAT THE ASSIMNET
Answer:
Easy, check bellow.
Step-by-step explanation:
Mistakes
Allow
Thinking to
Happen
Lines AB and CD (if shown) are straight lines. Find x. Give reasons to justify your solutions.
Answer:
Step-by-step explanation:
The value of x is 15.
What is linear pair?Linear pairs of angles are created when two lines cross at a single point. Angles are said to as linear if they are contiguous to one another following the junction of two lines. If two angles are adjacent and their measurements add up to 180°, they are supplementary. As a result, a pair of linear angles always sums to 180°.
In a linear pair, the total of the two angles is always 180 degrees.Angles that are next to one another are called linear pairs, however not all adjacent angles are linear pairs.A common vertex and common arm are shared by a pair of linear angles.Given:
<1 = 5x-15
<2 = 90
<3 = 2x
Now, using Linear pair
5x - 15 + 90 + 2x= 180
7x + 75 = 180
7x = 180-75
7x= 105
x= 105/7
x= 15
Hence, the value of x is 15.
Learn more about linear pair here:
https://brainly.com/question/17525542
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