i really need help this timed
How many solutions does 3(2.4x +4) = 7.2x + 12 have?
Answer: 0
Step-by-step explanation:
what is inverse function of f(x) = -3x+27
Answer:
y=9-x/3
Step-by-step explanation:
swap the variable y=27-3x becomes x=27-3y
now solve the equation x=27-3y for Y
y=9 - x/3
and done:)
HOPE IT HELPS ♡
I will mark brainliest and give all points (100pts)
Answer:
its 1,b 2,c 3,a
so letter C
Step-by-step explanation:
Have a wonderful day!
i need help
this is due today at 4
Answer:
Hi The Answer is A.
Step-by-step explanation:
The Answer is A Because of the funter travel of the X.
x*y=z
Hope This Helps.
:)
My name is John henry.
roger has a nail that is 12 centimeters long. he measures and records the length of the nail as 15 centimeters. what is the % error in Rogers measurements
can someone help me !
Geometry - Unit 4 - Lesson 8
Answer:
Ok
Step-by-step explanation:
Ok
If
A. Acute
B. Obtuse
C. Right
D. Straight
Answer:
This question does not make sense. Is their an image that needs to be included?
Step-by-step explanation:
Answer:
Angle EAT is acute
Step-by-step explanation:
What is the answer
Answer:
∠B = 60°
Step-by-step explanation:
They are supplementary angles, which means they add up to 180°.
∠B + ∠A = 180
? + 120 = 180
? = 180 - 120
? = 60°
On average, cody runs 4 miles in 38 minutes. How fast should he plan to run a 10-mile race if he maintains this place.
A: 1 hour 3 minutes
B: 1 hour 16 minutes
C: 1 hour 35 minutes
D: 2 hours 30 minutes
Answer:
Step-by-step explanation:
C is the correct answer
You are an office manager. You have been asked to research the cost of an online messaging service. The service charges $3.25 per employee each month. However, if you sign up for a full one-year subscription, the charge drops to $2.80 per employee per month. Your office has 20 employees.
Answer:
The final cost for the service that offers the better deal is $56 per month, in total for the whole year it's $672.
The cost for the one that offers the worse deal is $65 per month.
Step-by-step explanation:
All we need to do is multiply the amount of money by the number of employees.
So:
20 × $2.80 = $56
(Calculations for worse deal)
20 × $3.25 = $65
Answer: $108.00
Step-by-step explanation:
$3.25 per employee, per month (3.25 x 20 x 12) = $780/ mo
$2.80 per employee, per month (2.80 x 20 x 12) = $672/mo
subtract the two, which equals $108.00 will be saved each year with the one-year subscription.
Solve the equation for all real solutions:
16n^2-10n-5=6n
Answer:
5/4 and - 1/4
Step-by-step explanation:
16n^2-10n-5=6n
16n^2-16n-5=0
(4n+1)(4n-5)
4n=-1 4n=5
n= -1/4 n= 5/4
What is the measure of angle x?
rewrite 6x - 5 in standard form
Answer:
I'm pretty sure the answer is still 6x-5.
Step-by-step explanation:
pleaseeee help pleaseee
Step-by-step explanation:
you can do it using the formula of ratio
Answer:
large dogs = 32
Step-by-step explanation:
small dogs to large dogs = 4: 3
total ratio = 7
large dogs = 4/7
total dogs = 56
large dogs = 4 x 56
7
large dogs = 32
Solve 6(3 + n) < 48.
Show your work.
Answer:
N<5
Step-by-step explanation:
Check out the pic
What is the value of 0?
Answer:
[tex]\huge\boxed{\sf \theta = 36.9\°}[/tex]
Step-by-step explanation:
[tex]\sf cos \theta = adjacent/ hypotenuse\\\\where \ adjacent = 4 , hypotenuse = 5\\\\cos \theta = 4 / 5\\\\cos \theta = 0.8\\\\\theta = cos^{-1} 0.8\\\\\theta = 36.9\°\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH18071. Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?
(a) Write an equation that represents the situation. Explain any variable used.
(b) Solve the equation from Part (a). Show your work. State your solution as a complete sentence.
Answer:
a) X + 2x = 36
Step-by-step explanation:
A) x refers to Kim's sister age
B) x = 12
When Kim is 24,his sister is 12
A watering can dispenses water at the rate of 0.3 gallon per minute. The original volume of water in the can was 7 gallons. Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after the can starts dispensing water? (1 point)
{(1, 6.7), (2, 6.4), (3, 6.1)}
{(1, 7.0), (2, 6.7), (3, 6.4)}
{(6.7, 1), (6.4, 2), (6.1, 3)}
{(7.0, 1), (6.7, 2), (6.4, 3)}
Answer:
The correct ordered pairs are:
{(1, 6.7), (2, 6.4), (3, 6.1)}
Option A is correct.
Step-by-step explanation:
A watering can dispenses water at the rate = 0.3 gallon per minute
The original volume of water in the can = 7 gallons.
Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after the can starts dispensing water?
First making the function:
The the volume of water in the can in gallons is represented by y and time in minutes is represented by x. Initially the volume is 7 gallons, after than water dispense at rate of 0.3 gallon per minute so, the function will be:
y=7-0.3(x)
Now, putting values to find ordered pairs
So, when time is 1 minute i.e x = 1
y=7-0.3(1)
y=7-0.3
y=6.7
So, when x=1, y=6.7 the ordered pair is: (1,6.7)
when time is 2 minutes i.e x = 2
y=7-0.3(2)
y=7-0.6
y=6.4
So, when x=2, y=6.4 the ordered pair is: (2,6.4)
when time is 3 minutes i.e x = 3
y=7-0.3(3)
y=7-0.9
y=6.1
So, when x=3, y=6.1 the ordered pair is: (3,6.1)
So, the correct ordered pairs are:
{(1, 6.7), (2, 6.4), (3, 6.1)}
Option A is correct.
Can somebody please help me? :)
Answer:
33ft
Step-by-step explanation:
12ft + 4ft + 7ft + 10ft = 33ft
need help math question
My answer is 8 . Please check the answer.
HELP ASAP TIMED !!!! What is the exact value of cos(c + d), given Sine c = StartFraction 24 Over 25 EndFraction for c in Quadrant II and Cosine d = negative three-fourths for d in Quadrant III?
Negative StartFraction 47 Over 100 EndFraction
Negative 1 and StartFraction 3 Over 100 EndFraction
StartFraction 21 minus 24 StartRoot 7 EndRoot Over 100 EndFraction
StartFraction 21 + 24 StartRoot 7 EndRoot Over 100 EndFraction
9514 1404 393
Answer:
D
Step-by-step explanation:
In the second quadrant, ...
c = 180° -arcsin(24/25) ≈ 106.26°
In the third quadrant, ...
d = 360° -arccos(-3/4) ≈ 221.41°
Then cos(c+d) = cos(327.67°) ≈ 0.84498
This is a positive irrational number, greater than 21/100, so the only reasonable choice is the last one:
[tex]\dfrac{21+24\sqrt{7}}{100}\approx 0.84498[/tex]
_____
Perhaps you want to work this out using the trig identities.
cos(c) = -√(1 -sin(c)²) = -7/25
sin(d) = -√(1 -cos(d)²) = -(√7)/4
Then the desired cosine is ...
cos(c+d) = cos(c)cos(d) -sin(c)sin(d)
cos(c+d) = (-7/25)(-3/4) -(24/25)(-√7/4)
cos(c+d) = (21 +24√7)/100 . . . . matches choice D
Answer:
D
Step-by-step explanation:
What is the Factor of :
10x + 15
Answer:
The factor of : 10x+15 is
Step-by-step explanation:
10x+15
5(2x+3)
What is the circumference of the circle below?
Answer:
Step-by-step explanation:
circumference C=2*3.14*r
C=2*3.14*18m=113.04 m
Answer:
113.04 meters.
Step-by-step explanation:
Use the formula
2 times pi times r
r=radius of the circle
or Pi times D
d= diameter of the circle.
The radius is 18 meters.
So, do 2 times 18 times pi.
2. Water bottles are sold in cases of
24. Select the expressions that can
represent the total number of water
bottles in c cases.
24 XC
24 = 0
24 + c
24 – C
24c
Which of the following representations of ADAL would allow someone to construct a triangle NOT congruent to ADAL?
NEED HELP ASAP!!!!! PLEASE HELP ME
Answer:
m∠A = 40°
m∠B = 70°
Step-by-step explanation:
The sum of angles in a triangle is 180°.
x + 49 + x + 79 + 70 = 180
2x + 198 = 180
2x = 180 - 198
= -18
x = -18 ÷ 2
x = -9
m∠A = x + 49
= (-9) + 49
m∠A = 40°
m∠B = x + 79
= (-9) + 79
m∠B = 70°
Harold and his friend Bill each collect vintage action figures. Harold already has
18 action figures and adds 3 more figures to his collection each month. Bill
already has 24 action figures and adds 2 more to his collection each month. Let x
represent the number of months, and y represent the number of action figures.
Which equations can be used to find how long it will take before the friends each
have the same number of action figures?
Harold: y = 3x + 18
Bill: y = 2x+24
Hope this helps with your mid-term too guys !
Help plz!!! (20 points)
(07.03 LC)
How many solutions does the equation 6y − 3y − 7 = −2 + 3 have? (1 point)
Group of answer choices
None
Infinitely many
Only one
Two
9514 1404 393
Answer:
Only one
Step-by-step explanation:
Taking the question at face value, the equation simplifies to ...
y(6 -3) -7 = 1
3y = 8 . . . . . . . add 7
y = 8/3 . . . . . . .divide by 3
There is exactly one solution.