Solve the equation. 7x = 3x^2 - 1
Answer:
Step-by-step explanation:
Answer:
If you still need help search up Mathaway it gives u the answer to all your problems and it gives a step by step explination
Step-by-step explanation:
Subtract
3
x
2
from both sides of the equation.
7
x
−
3
x
2
=
−
1
Add
1
to both sides of the equation.
7
x
−
3
x
2
+
1
=
0
Use the quadratic formula to find the solutions.
−
b
±
√
b
2
−
4
(
a
c
)
2
a
Substitute the values
a
=
−
3
,
b
=
7
, and
c
=
1
into the quadratic formula and solve for
x
.
−
7
±
√
7
2
−
4
⋅
(
−
3
⋅
1
)
2
⋅
−
3
Simplify.
Tap for more steps...
x
=
7
±
√
61
6
The final answer is the combination of both solutions.
x
=
7
+
√
61
6
,
7
−
√
61
6
The result can be shown in multiple forms.
Exact Form:
x
=
7
+
√
61
6
,
7
−
√
61
6
Decimal Form:
x
=
2.46837494
…
,
−
0.13504161
…
Need a little help with this one problem! All help appreciated!
Answer:
A. Magic carpets
B. Carpet Brites
C. Carpet Brites
Step-by-step explanation:
70 x 15 = 1050 + 10 = 1060
60 x 15 = 900 + 30 = 930
Write this polynomial in standard form:
x^5-6x^5+8x^4
Answer:
-6x^5+x^5+8x^4
Step-by-step explanation:
Answer:
-5x^5 + 8x^4
Step-by-step explanation:
you combine like terms with the ones that are to the 5th power and then add 8x^4
Indicate whether the function represents an exponential growth or decay.
Answer:
1) decay
2) growth
3) growth
Step-by-step explanation:
A generic exponential function can be written as:
f(x) = A*(r)^x
Where:
A is the initial amount of something.
r is the rate of growth.
x is the variable, usually, represents time.
if r > 1, we have an exponential growth.
if r < 1, we have an exponential decay.
1) f(x) = (3/4)^x
in this case we have:
A = 1
r = (3/4) = 0.75
Clearly, r < 1.
Then this is an exponential decay.
2) f(x) = (1/6)*4^x
In this case we have:
A = (1/6)
r = 4
Here we have r > 1.
Then this is an exponential growth.
3) f(x) = (1/4)*(5/2)^x
in this case we have:
A = 1/4
r = 5/2 = 2.5
here we have r > 1, then this is an exponential growth.
PLEASE I NEED HELP I GOT A PUPPY AND IM EXHAUSTED HE DOESNT SLEEP AT NIGHT
Answer:
False
Step-by-step explanation:
It is false because the graph of [tex]y=x^{2}[/tex] does not passes through the point [tex](16,4)[/tex].
x = 16
y = 4
Substitute
[tex]4=16^{2}[/tex]
[tex]4=256[/tex]
Since 4 is not equal to 256, the answer is false.
Answer:
i hope this helps because i have a dog too and it is a husky that is one-years-old. oh and it is false
Step-by-step explanation:
4≠224. ∴The functions whose graphs include the point (16, 4) is y = x−12.
Chloe wants to give her apartment a more elegant look, so she decides to make drapes for her 6 windows. She plans to make 2 drapes for each window. Each drape will be 84 inches long. How many yards of fabric should she buy for her new drapes?
Answer:
84 yards
Step-by-step explanation:
1008 inches converts to 84 yards
What was the temperature in the city with an elevation of -9?
Answer:
7(u will trace the _9 in x axis to y axis where the blue dot is the value there will be our answer and that is 7)
SOMEONE PLEASE HELP IM STUCK AND ITS MY LAST QUESTION
Answer:
Theta=60
Step-by-step explanation:
Lets start to get the value of x in [tex]sin(x)=\frac{1}{2}[/tex]
Just do the opposite which is [tex]sin^{-1}(\frac{1}{2}) = 30[/tex]
So [tex]sin(30)=\frac{1}{2}[/tex]
Still we got only the value of x not theta then
The value of x = theta/2
Theta/2=30 multiply each side by 2
Theta = 60
??????????????????????????
Answer
I believe it is 1/12
Step-by-step explanation:
as it is 24 ft tall, and then the model is 2 ft tall
22 ft is subtracted
so basically for every 12 ft one is added to the model
so 1/12 should be the ans
Helpheheehhedhhdhdhuahdhdh
Answer:
2.9
Step-by-step explanation:
.05 rounds up.
2.9
Stevie bought a bag of lollipops. The bag contained 30 lollipops and 6 of them were grape flavored. What percent of the lollipops were grape flavored?
the percent change from 50 to 43
Answer:
its not 7% btw
Step-by-step explanation:
a fruit company delivers its fruit in two typed of boxes: large and small. A delivery of 2 large boxes and 3 small boxes has a total weight of 72 kilograms. A delivery of 6 large boxes and 5 small boxes has a total weight of 162 kilograms. How much does each type of box weigh?
Find the value of x in each diagram.
Answer:
4. 25 5. 80 6. 30
Step-by-step explanation:
All triangles add up to 180.
The triangle in #4 is right, so 90° + 65° = 155°
180° - 155° = 25°
x=25
#5.
50° + 50° = 100°
180° - 100° = 80°
x=80
In #4 the triangle is an equilateral, so all the angles will be equal. 2x + 2x + 2x = 180
6x = 180
x = 30
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180°
Two of the angle measures are given in each triangle so to find the third angle measurement we need to subtract the sum of two of the interior angles
4.
180 - (65 + 90) = x
180 - 155 = x
25 = x
5.
180 - (50+5) = x
180 - 100 = x
80 = x
For the 6th question all side lengths are equal so the angle measures also equal and 60 each
2x = 60
x = 30
Manny's muffins sells 50 muffins each day. 12 of these are blueberry. If they sell a 150 muffins tomorrow, how many blueberry muffins can they expect to sell?
Answer:
36 muffins
Step-by-step explanation:
[tex]\frac{12}{50} = \frac{x}{150}[/tex]
50 goes into 150 3 times so multiply 12 by 3 to get the value of x
12 · 3 = 36
What are the values of the function when x=0 and when x=4?
Answer:
0 and h4
Step-by-step explanation:
Value of function when x=0 is 10 and at x=4 is 16.
What are the values of the function?The value of a function, given the value(s) allocated to its argument(s), exists as the quantity assumed by the function for these statement values.
Function value may direct to: In mathematics, the value of a function when involved in an argument.
Analyzing the piece wise function
when x is between 0(including) and 4(excluding), the function behaves as:
[tex]h(x)=2x^{2} -3x+10[/tex]
put x=0:
[tex]h(0)=2(0)^{2} -3(0)+10=10[/tex]
when x greater than equal to 4, the function behaves as:
[tex]h(x)=2^{x}[/tex]
put x=4:
[tex]h(4)=2^{4} =16[/tex]
Therefore, values are 10 and 16 respectively.
To learn more about values of the function refer to:
https://brainly.com/question/12507191
#SPJ2
Alex went to the grocery store and bought 1 pound of oranges, 0.75 pounds of bananas, and 1.255 pounds of apples. How much did all of his produce weigh?
Solontendras qie dividir 075 liego 1255 y tines que saber cuento. Pesa una libra
In one survey, the sizes of women we distributed normally about the mean, the mean of the data is 7, and the standard deviation is 1.5. about what percent of the women are between a 5.5 and 8.5 shoe size?
68%
34%
80%
15%
Answer:
it's 68%
just did the homework lol
felixs total credit card balance is described by the following function f(p)=p(1.30). if felix owes 2500, what is the total bill plus interest
Given:
Felix's total credit card balance is described by the following function
[tex]f(p)=p(1.30)[/tex]
To find:
The total bill plus interest if Felix owes 2500.
Solution:
We have,
[tex]f(p)=p(1.30)[/tex]
Where [tex]p[/tex] is the amount Felix owes.
Putting [tex]p=2500[/tex] in the given function, we get
[tex]f(2500)=2500(1.30)[/tex]
[tex]f(2500)=3250[/tex]
Therefore, the total bill plus interest is 3250.
i need a reduced mixed number from 12(x-6)=2(x-9)
Step-by-step explanation:
12×x-12×6=2×x-2×9
12x-72=2x-18
12x-2x= -18+72
10x = 54
x =54/10
x = (5)\4/10
What is the actual height of the building shown in the model?
Answer:
The actual height is 150ft
Step-by-step explanation:
Given
[tex]Width : Height = 2cm : 5cm[/tex]
[tex]Actual\ width = 60ft[/tex]
Required
Determine the actual height
Substitute 60ft for width in: [tex]Width : Height = 2cm : 5cm[/tex]
[tex]60ft:Height =2cm:5cm[/tex]
Express as fraction
[tex]\frac{60ft}{Height} =\frac{2cm}{5cm}[/tex]
[tex]\frac{60ft}{Height} =\frac{2}{5}[/tex]
Make height the subject
[tex]Height = \frac{5}{2} * 60ft[/tex]
[tex]Height = 5 * 30ft[/tex]
[tex]Height = 150ft[/tex]
Answer:
Step-by-step explanation:
1 cm represents 30 ft
height of building = 5 cm × 30 ft/cm = 150 ft
If θ is an angle in standard position whose terminal side lies in quadrant III and sin θ=-√3/2, find the exact value of the tan θ
Answer:
C) √3
tanθ = √3
Step-by-step explanation:
Step:-1
Given that θ be an angle in standard position whose terminal side
Given that the angle
sinθ = [tex]\frac{-\sqrt{3} }{2}[/tex]
Given that the Opposite side AB = [tex]\sqrt{3}[/tex]
Hypotensue AC = 2
Step(ii):-
By using Pythagoras theorem
AC² = AB² +BC²
BC² = AC² - AB²
BC² = 4 - (√3)²
= 4-3
BC = 1
Adjacent side(BC) = 1
Step(iiI):-
Given that 'θ' lies in the third quadrant so tanθ is positive
tanθ = [tex]\frac{AB}{BC} = \frac{\sqrt{3} }{1}[/tex]
Answer:
b. -1/2
Step-by-step explanation:
:)
What are 2 factors of 72y + 108z?
Please help I will give brainliest:) hurry! Answer carefully plss
Y = -3x^2 +4 is the answer to this problem
Can someone help me? I'll reward points + brainalist
The answer for the following question is 12
as
Circumference of the circle = 2TTr
= 2 x 22/7 x 12
= 44 / 7 x 12
= 75.4285714286
In a baseball card collection, 40% of the cards are worth more than $100. If 12 cards in the collection are worth more than $100, how many total baseball cards are in the collection?
Answer:
30
Step-by-step explanation:
Total number of cards = number of cards worth more than 100 divided by the rate of those cards among total cards = 12/40% = 30
Three boards are placed end to end to make a walkway. The first board is 2 feet 6 inches long, the second board is 3 feet 2 inches long, and the third board is 5
eet 7 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.
Step-by-step explanation:
TALA RHYTHMIC PATTERNS
ACTIVITY 2: LET'S DO TALA
kind of membranophones/percussion instruments found at home for tapping. Record your
Directions: Perform the following tala rhythmic patterns using the given legend. Use any
performance using any recorder and send it to your
INSTRUMENTS AT HOME
MANJIRA
TIN CANS
1 2 3 4 5 6
х
1 2 3 4 5 6 7 8 9 10 11 12
GHATAM
PAL
X
х
0 X
TABLA
1 2 3 4 5 6 7 8 9 10
BOX
x xox
Answer:
11 feet 3 inchesStep-by-step explanation:
1 feet = 12 inches
Add up the lengths:
2 ft 6 in + 3 ft 2 in +5 ft 7 in-------------------
10 ft 15 in = 10 ft + 12 in + 3 in = 10 ft + 1 ft + 3 in = 11 ft 3 ini know mia is right but what’s the explaining?
Answer:
Just explain why you chose mia..
Step-by-step explanation: Why do you think mias right?
Answer:
Mia is right
Step-by-step explanation:
But the reason is because y=4+6x mark is going over the line and he needs to make sure its accross.
Help pls!!!! Pls explain how you got the answer if you can!!! Have a blessed day
Also if you don’t know the exact answer answer and comments. And pls don’t waste my points this assignment is very important
Step-by-step explanation:
for perimeter you just add up all of the sides so :
(x+4) +( 2x)+(4x-2)+(3x-1) = 10x +1
For each geometric sequence, write a recursive rupe by finding the common ratio by calculating the ratio of consecutive terms. Write an explicit rule for the sequence by writing each term as the product of the first term and a power of the common ratio.
Answer:
3
Step-by-step explanation: