The equation x² + 4x - 7 can be written in the form (x + a)² - b as (x + 2)² - 11
How to write equation in another form?x² + 4x - 7 in the form (x + a)² - b
Where,
b = constant
x² + 4x - 7
= (x + 2)² - 11
Hence,
x² + 4x - 7 = (x + 2)² - 11
Check:
(x + 2)² - 7
= (x + 2) (x + 2) - 7
= x² + 2x + 2x + 4 - 11
= x² + 4x - 7
Therefore, (x + 2)² - 11 is another form the equation x² + 4x - 7 can be written.
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Find the total cost, to the nearest cent, for a sweater that cost $22.95 with an additional 5.5% tax sale
Answer: $24.2
Step-by-step explanation:
The total cost will be gotten by adding the cost of the sweater and the tax. This will be:
Cost of sweater = $22.95
Tax = 5.5% × $22.95 = 0.055 × $22.95 = $1.26225
Total cost of the sweater = $22.95 + $1.26225 = $24.21225
= $24.2 to nearest cent
Answer:
5.5% of 22.95 is about 1.26
22.95 + 1.26 = 24.21
$24.21
Step-by-step explanation:
HELPPP WILL MARK BRAINLIEST
Answer:
7 1/6
Step-by-step explanation:
Area is length x width
Find area of 1 container:
Area = 5 1/2 x 1 2/3 = 11/2 x 5/3 = 55/6 = 9 1/6 square yards.
Multiply the area on 1 container by total containers (9)
9 1/6 x 9 = 55/6 x 9 = 495/6 = 82 1/2 square yards
The answer is 82 and 1/2 square yards
A fair coin is flipped twice. H is recorded for heads and T for tails after each flip. The notation for conditional probability is P(H on 2nd flip|H on 1st flip). Which notation is the probability of the two events being not independent?
Answer:
The Notation for each event Not been independent = P( HT ) or P( TH )
Step-by-step explanation:
when A fair coin flipped ; P( H ) = 0.5 and P( T ) = 0.5
Hence when it is flipped twice the possible outcome = 4
= HH , HT , TT, TH
Since Notation for conditional probability = P ( HH ) this shows that each flip is independent
The Notation for each event Not been independent = P( HT ) or P( TH )
Answer: P(H on 2nd flip|H on 1st flip)=P(H on 2nd flip)
Step-by-step explanation:
Find the circumference, giving brainlies pls asap
Answer:
B) 12.6π ; 39.6
Step-by-step explanation:
Circumference:
C = 2πr
C = 2(3.14)(6.3)
C = 6.28(6.3)
C = 39.6
C = 2πr
C = 2π6.3
C = 12.6π
its a or b, sorry im not much help
PLEASE HURRY AND ANSWER SOMEONE Decide if the relation is a function or not.
Ordered Pairs:
(2,1), (2,-5), (0,-7), (3,2)
Maya tutors english. for each hour that she tutors, she earns 40 dollars.Her earnings, E (in dollars),after tutoring for h hours is given by the following.How much does maya earn if she tutors for 5 hours?
Answer:
Amount earn by Maya for teaching English in 5 hour = $200
Step-by-step explanation:
Given:
Amount Maya earn in 1 hour for teaching English = $40
Find:
Amount earn by Maya for teaching English in 5 hour
Computation:
Assume;
Per hour earning = E
Number of total hour = h
Total earning = Per hour earning x Number of total hour
Total earning = (E)(h).
So,
Amount earn by Maya for teaching English in 5 hour = 5 x 40
Amount earn by Maya for teaching English in 5 hour = $200
yallll help me pls lol
Mary used 3.5 portions of her saving to buy a birthday gift for her mother, and a balance of 3/2 portions to buy a shirt for her sister. State in terms of percentage of money that she used to buy a shirt for her sister.
Answer:
150
Step-by-step explanation:
I guess you're asking percentage of 3/2 into percentage so I took 3/2 × 100 to change it into percentage form and I got 150 if it's not the answer please tell me right away.
Solve 4x=12 what’s this
Answer:
If you are looking for X then it is 3
Answer:
4x=12
=12/4
=3
12=4*3
x=3
Step-by-step explanation:
Find the volume of the figure below. Leave your answer in terms of π.
Answer: 1539π cubic inches.
Step-by-step explanation:
In the figure, we have a hemisphere joined with a cylinder of the same diameter 18 inches.
Radius = 9 inches (half of diamter)
Volume of hemisphere = [tex]\dfrac23 \pi r^3[/tex]
Volume of cylinder = [tex]\pi r^2 h[/tex], where r= radius h= height
Volume of hemisphere= [tex]\dfrac{2}{3}\pi (9)^3=486\pi in.^3[/tex]
Volume of cylinder = [tex]\pi (9)^2 (13)=1053\pi\ in.^3[/tex]
Combined volume = 486π+1053π=1539π cubic inches.
Hence, the volume of the solid = 1539π cubic inches.
Pls help Im stuck brainliest and 5 star rating !!!!!!!!!!!!!!!!! :::::::::::)))))
answer plzzzzzz ’’’’’’
Answer:
45
Step-by-step explanation:
Find the missing angle.
Answer:
0.76 or 0.8
Step-by-step explanation:
PLEASE HELPPP!!
the two triangles below are similar! everything is in the picture please help
A central rental company a base and a daily charge to rent a car. The function f (x) = 35x +50 relates the length of the rental in days, x, to the total charge in dollars, f (x). What units should be used to describe the rate of charge of the function?
A. Days/dollar
B. Dollars/day
C. Hours/day
D. Days/hour
0.7 as 1 minute
And is it okey if you could tell me how you did it?
Answer:
Hello There!!
Step-by-step explanation:
You multiply 0.7 by 60 which is 42 seconds.
hope this helps,have a great day!!
~Pinky~
Please help!!! I’ll mark you as brainless!!!!
Answer:
80 percent
Step-by-step explanation:
Can someone help to on this question?
Answer:the answer is x=5,-3
Step-by-step explanation:
Amelia has 3 gallons of paint .Mason have 10 quarts .How many more pints of paint does AMELIA have then mason.
Answer:
4 Pints
Step-by-step explanation:
According to the scenario, calculations are as follows,
As we know, 1 gallon = 8 Pints
1 Quarts = 2 Pints
So, Amelia = 3 Gallons = 3 × 8 Pints = 24 Pints
Mason = 10 quarts = 10 × 2 Pints = 20 Pints
So, Number of more pints Amelia has = Amelia number of pints - Mason number of pints
= 24 pints - 20 pints
= 4 Pints
BRAINLY TO WHOEVER CAN HELP PLS OMG ASAP
Answer:
1: C
2:A
Step-by-step explanation:
Dialation is just the multiplucation of the size. If the original point is 2, 4 dialated to 2 is would be 4, 8. Basiccly just multiply by 2 in this example.
9 4/5 divided by 3 2/11
Find the value of 4 of 5 of 1000
25 4
with step by step explaination please thank you
Answer:
4 of 5 = 4/5
4/5 of 1000 = 1000/5×4 = 200×4 = 8004/5 of 4 = 4/5×4 = 16/5 = (3.2)4/5 of 25 = 25/5×4 = 5×4 = 20A square piece of plastic has sides that are 8 centimeters long. What is the piece of plastic's area?
Answer:
64 [tex]cm^{2}[/tex]
Step-by-step explanation:
l x w = area
8 x 8 = 64
9c + 1 > 10 .
i don’t get this
Answer:
c>1
Step-by-step explanation:
9c>10-1
9c>9
9c/9>9/9
c>9/9
so,
c>1
Hope that helps!
Plz mark brainliest
Please help if I don’t pass I’ll have summer school
Answer:
The second one
Step-by-step explanation:
A visual for law of sines can be found below
Sin (an angles) over its opposite side length is equal to sin ( a different angle) over its opposite side length
In the given triangle we are given side length BC and side length AB
we are also given AB's opposite angle (40)
And we need to find side length BC's opposite angle (A)
That being said we are given enough information to set up an equation using the law of sines
Remember angle A's opposite side length is 16 and the angle that has a measure of 40 degrees' opposite side length is 12
so the equation would look like...
[tex]\frac{sin(40)}{12} =\frac{sin(A)}{16}[/tex]
WILL GIVE BRAINLIEST Divide
Answer:
38/5
Step-by-step explanation:
Answer:
[tex]\frac{38}{15}[/tex] or/and [tex]2 \frac{8}{15}[/tex]
Step-by-step explanation:
work out the median, range and mode
median= 7 middle part
range=7 because 8-1 or highest minus lowest numbers
mode= you got the answer
if its 1:30 now how much longer do i have until 3:00
Answer:
You will have 1 hour and 30min!
Step-by-step explanation:
1:30+30=2:00
2:00+60=2:60=3:00
Pls give me brainliest if this helped
Hope this helps and don't forget to follow
Answer:
Only 2 hours and 30 minutes
Step-by-step explanation:
Which of the following is the complex conjugate of 8- 3?
8- 3
8+3
8 3
3+ 18
Answer:
8 + [tex]\sqrt{3}[/tex]
Step-by-step explanation:
A complex conjugate is found when the signs differ, but the numerical elements remain the same.
25 points and brainiest
2. If you get paid hourly, making $1000 a week, but work 65 hours per week how much are you making hourly?
3. If you get paid hourly, making $25.00 an hour, but work 20 hours’ overtime per week, what is your weekly pay?
4. If you get paid hourly at a job making $25.00 an hour, but have to call in sick for one day of work, how much would you get paid at the end of the week assuming you normally work 40 hours and get no sick leave.
Anna's toy car traveled 0.7 meters. Hector's toy car traveled 0.72 meters. Whose car traveled farther?
Answer:
hector's toy
Step-by-step explanation:
it traveled .02 m farther
Answer:
Step-by-step explanation:
Think money
which is more 70 cents or 72 cents?
The answer should be 72 cents.
So .72 - .70 = 0.02
.72 is larger.