Answers
Answer:
[tex]x=1+\sqrt{5} , x=1-\sqrt{5}[/tex]
Step-by-step explanation:
exchange y for 1:
[tex]1=x^2-2x-3[/tex]
and solve (I used an online calculator - symbolab and mathaway are my favorites).
Related Questions
At a party there are 3 pizzas to share. If each pizza has 8 slices, determine how many pieces each child will receive if 12 kids attend the party. Now what if 8 kids attend?
Answers
Answer: your answer is 3
Step-by-step explanation: if you multiply 3 and 8 you get 24 divide that by 8.
The number of pizzas each kid will receive if there were 12 children was 2 slices each
The number of pizzas each kid will receive if there were 8 children was 3 slices each
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
The total number of pizzas at the party = 3 pizzas
The total number of slices in 1 pizza = 8 slices
So , the number of slices in 3 pizzas = 3 x 8 slices
The number of slices in 3 pizzas = 24 slices
Now , the equation will be
The number of children attended the party be = A
The value of A = 12 children
So , the number of pizza slices each child gets = number of slices in 3 pizzas / number of children attended the party
Substituting the values in the equation , we get
Number of pizza slices each child gets = 24 / 12
Number of pizza slices each child gets = 2 slices each
Therefore , if there are 12 children , the number of slices of pizzas each child receives is 2 slices
Now , if the number of children is B = 8
Number of pizza slices each child gets = 24 / 8
Number of pizza slices each child gets = 3 slices each
Therefore , if there are 8 children , the number of slices of pizzas each child receives is 3 slices
Hence , The number of pizzas each kid will receive if there were 12 children was 2 slices each
The number of pizzas each kid will receive if there were 8 children was 3 slices each
To learn more about equations click :
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Easy points if u know it
Answers
Answer:
x=20 degrees
Step-by-step explanation:
Line y is a perpendicular bisector making a 90 degree angle with the base of the triangle. The Interior Angle Sum Theorem states that the sum of the interior angles of a triangle is always equal to 180 degrees. Add 70 to 90
70+90=160 degrees
Subtract the sum from 180
180-160=20 degrees
One x is equal to 20 degrees. Both x's are equal to 40 degrees.
Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.
Answer:
x=20 degrees
Step-by-step explanation:
Tbh I just copied from the other guy I just wanted points thanks :)
A repairman charges an inspection fee plus $16 per hour. A customer with a coupon for 30% off the inspection fee pays $74 for a 2-hour repair. How many hours are worked when a customers pays $124 without a coupon?
Answers
Answer:
I want to say that the hours worked was 4. I hope that is right.
Step-by-step explanation:
30% off of $60 is 42
16*2=32 and 32+42=74
124-60=64
16*4=64
so he would have worked 4 hours for $64 and a fee of $60
64+60= 124
A cyclist travels at a speed of 20 km/hour. How far will he travels in 50
minutes?
Answers
Answer:
This is not my answer btw
Step-by-step explanation:
Given that speed(v) = 20km/h and time(t) = 50 min
We have to find distance (d)
First convert speed into m/s
v = (20*1000m)/(1*3600s)
v = (50/9) m/s
Now convert time into second
t = 50*60 = 3000 sec
As we know that
d = v*t = (50/9)*3000 = 50000/3
d = 16666.67m or 16.67km
Ans: 16666.67m or 16.67km
DROP YALL FAV ANIMESS :))) mines if aot
Answers
Answer:
monster masume
Step-by-step explanation:
whats 2 plus 2 divided by 63.11111
Answers
Answer:
0.06338
Step-by-step explanation:
2+2=4
4/63.1111=0.06338
Answer:
2.03169
Step-by-step explanation:
please answer #7 <3
tysm
if u can explain why i’ll give u brainlist
Answers
Answer:
BC=2
Step-by-step explanation:
The equation is
AB+BC+CD=21
7+BC+12=21
19+BC=21
BC=21-19
BC=2
Answer:
Bc = 2
Step-by-step explanation:
Just add AB + CD
you'll get 19
substract it from AD
21 - 19 = 2
In Above question b = 39°
Not 31
find the value of x.
Answers
20 POINTS AND WILL GIVE BRAINLIEST
The function y=f(x) is graphed below. What is the average rate of change of the function f(x) on the interval −6≤ x ≤−1?
Answers
Answer:
1. F=y/x
2. F(x)= fx
3. -6< x <-1
This is what I think, It look like it going to be the same answer for me but I don’t know if you want it
Step-by-step explanation: I try really I did
A restaurant manager states the number of customers that enter the restaurant is equal to 3 times the number of people that buy a hotdog from the hotdog cart plus 15. The manager also states that the number of customers that enter their restaurant is equal to 2 times the number of people that buy a hotdog from the hotdog cart plus 60. What number of people buying a hotdog from the hotdog cart across the street makes the equation 3x+15 = 2x+60 true?
Answers
Answer: true
Step-by-step explanation: The number of people would be 45
Bus Stop: A graph has time (minutes) on the x-axis, and distance (miles) on the y-axis. A line goes through points (0, 5), (6, 8), and (12, 11). Friend's house: A 2-column table with 3 rows. Column 1 is labeled Time (minutes) with entries 3, 6, 9. Column 2 is labeled Distance (miles) with entries 4, 6, 8.
Recall that Seth's house is 17 miles from school. Which location should Seth start off at to get to school faster and how long will it take?
from the bus stop is faster, taking 17 minutes
from the bus stop is faster, taking 24 minutes
from his friend’s house is faster, taking 15 minutes
from his friend’s house is faster, taking 22.5 minutes
Answers
Answer:
from his friend’s house is faster, taking 22.5 minutes
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
i just got it right :)
Given m∥n, find the value of x.
Answers
Answer:
x = 20
Step-by-step explanation:
The 2 given angles are alternate interior angles and are congruent, thus
7x - 3 = 6x + 17 ( subtract 6x from both sides )
x - 3 = 17 ( add 3 to both sides )
x = 20
I need help with this answer someone please help with this
Answers
Answer:
120cm
Step-by-step explanation:
i hope this helps you
Answer:
the 2 sides are 15 and the top is 30 for the 60 cm one
Step-by-step explanation:
120-60=60
2 sides are the same
60/2 =30
30/2 = 15
^ that is for the sides
then the remainder is for the top
y + 2x = 4 How do I complete this?
Answers
Here’s how to solve:
y+2x=4
-2x -2x
y=4-2x
4-2x + 2x =4
4=4
So if you’re trying to see if it is true, then your answer is that it’s true.
If you’re trying to find the linear equation, then your answer is y=-2x+4.
Need help see pictures for details
Answers
Answer:
plot the points
(-4, 2.5) (-3, 3) (-2, 1.5) (-1, 2) (0, 1)
(1, 2) (2, 3.5) (3, 0.5) (4, 2.5)
Step-by-step explanation:
does that help any???
Can i have help plz will mark
Answers
Answer:
x=-1 y=0
(-1,0)
Step-by-step explanation:
Answer: x= -1, y= 0
Step-by-step explanation: hope this helps
-3x-5<10 Equations
Answers
Answer:
x>-5
Step-by-step explanation:
First, we need to isolate the variable. To start doing this we can add five to both sides. We now have -3x<15. We then have to divde by -3. When working with inequalites you flip the inequality sign when dividing by a negative number. That then leaves us without answer, x>-5.
1/12 divided by 3/4 help please
Answers
Step-by-step explanation:
(1/12) / (3/4)
= (1/12) * (4/3)
= 1/9.
Answer:
1/3
in decimal would be 0.3333333
Step-by-step explanation:
What is 3/4 divided by 1/8? Explain or show your reasoning
Answers
Answer:
6
Step-by-step explanation:
Which set of coordinates describes a function?
A {(2, -4), (-2, - 7), (0, 2), (-3, 8)}
B {(8,9), (1, 5), (1, 6), (-1, 11)}
C {(6, -4), (-3, -3), (-8, -8), (6, -1)}
D{(8,3), (-8, -4), (2, 7), (2, 2)}
Answers
Kelly purchased 5 containers of ice cream for a party. Each container holds 8 cups of ice cream. Before the party, her brother ate 2 cups of ice cream. If one serving of ice cream is 23 of a cup, how many servings of ice cream will be left for the party?
Answers
Given:
Kelly purchased 5 containers of ice cream for a party.
Each container holds 8 cups of ice cream.
Her brother ate 2 cups of ice cream.
One serving of ice cream = 2/3 of a cup.
To find:
Number of servings of ice cream will be left for the party?
Solution:
We have,
1 container = 8 cups of ice cream
5 containers = 5×8 = 40 cups of ice cream
Her brother ate 2 cups of ice cream. So, remaining cups of ice cream is
[tex]40-2=38[/tex] cups
Now,
[tex]\dfrac{2}{3}[/tex] of a cup = 1 serving
1 cup = [tex]\dfrac{3}{2}[/tex] serving
38 cup = [tex]38\times \dfrac{3}{2}[/tex] serving
= [tex]19\times 3[/tex] serving
= 57 serving
Therefore, 57 servings of ice cream will be left for the party.
IF ANYONE HELPS ME WITH THIS I WILL GIVE U BRAINLIEST AND 100 POINTS BTW ITS INTEGRALS FOR CALCULUS
Answers
Answer:
[tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{e^\bigg{\frac{1}{4}}}{8} - \frac{e^\bigg{\frac{1}{9}}}{8}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
Terms/CoefficientsFactoringExponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]Calculus
Derivatives
Derivative Notation
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Integrals
Definite IntegralsIntegration Constant C
Integration Rule [Fundamental Theorem of Calculus 1]: [tex]\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)[/tex]
Integration Property [Multiplied Constant]: [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]
U-Substitution
eˣ Integration: [tex]\displaystyle \int {e^u} \, dx = e^u + C[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx[/tex]
Step 2: Integrate Pt. 1
Identify variables for u-substitution.
Set: [tex]\displaystyle u = 4x^{-2}[/tex][u] Differentiate [Derivative Rule - Basic Power Rule]: [tex]\displaystyle du = -8x^{-3} \ dx[/tex][du] Rewrite [Exponential Rule - Rewrite]: [tex]\displaystyle du = \frac{-8}{x^3} \ dx[/tex]Step 3: Integrate Pt. 2
[Integral] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{-1}{8}\int\limits^6_4 {\frac{-8}{x^3}e^{4x^{-2}}} \, dx[/tex][Integral] U-Substitution: [tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{-1}{8}\int\limits^{\frac{1}{9}}_{\frac{1}{4}} {e^u} \, dx[/tex][Integral] eˣ Integration: [tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{-1}{8}(e^u) \bigg| \limits^{\frac{1}{9}}_{\frac{1}{4}}[/tex]Evaluate [Integration Rule - Fundamental Theorem of Calculus 1]: [tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{-1}{8} \bigg[ -e^\bigg{\frac{1}{9}} \bigg( e^\bigg{\frac{5}{36}} - 1 \bigg) \bigg][/tex]Simplify: [tex]\displaystyle \int\limits^6_4 {\frac{1}{x^3}e^{4x^{-2}}} \, dx = \frac{e^\bigg{\frac{1}{4}}}{8} - \frac{e^\bigg{\frac{1}{9}}}{8}[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Integration
Book: College Calculus 10e
Find the distance between the two points rounding to the nearest tenth (if necessary).
(0,–8) and (-5, 4)
Answers
Find the area of the pool and the deck.
The figure is made up of a right triangle,
a square, and a semicircle.
10 ft
26 ft
26 ft
24 ft
about 1096.33 sq.ft
about 2061.33 sq.ft
about 1061.33 sq.ft
about 1601 sq.ft
Answers
Answer:
about 1061.33 sq. ft
Step-by-step explanation:
find the three areas
triangle:0.5(10)24=120
square:26²= 676
semicircle:[tex]\frac{\pi(13^{2}) }{3}[/tex]
(169π/3)+676+120
=972.9763862
Camden is making accessories for the soccer team. He uses 632.25 inches of fabric on headbands for 41 players and 4 coaches. He also uses 361.21 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answers
Headbands for 41 players and 4 coaches (45)
632.25 inches / 45 = 14.055 inches
Wristbands for 41 players
361.21 / 41 = 8.81 inches
14.055 + 8.81 = 22.86 inches
Camden used 22.86 in of fabric for each player.
What is division?Division is breaking a number up into an equal number of parts.
Given that, Camden uses 632.25 inches of fabric on headbands for 41 players and 4 coaches. He also uses 361.21 inches of fabric on wristbands for just the players.
4 coaches + 41 players = 45 persons
Fabric used for headband for one person = 632.25 / 45 = 14.05 in
Fabric for 41 players = 14.05 × 41 = 576.05 in
Fabric for wristband = 361.25
Total fabric used on players = 361.25+576.05 in = 937.26 in
For each of them = 937.26 in / 41 = 22.86 in
Hence, Camden used 22.86 in of fabric for each player.
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Write the equation of the line with the given slope and y-intercept.
slope: 3
y-intercept: -6
Answers
Answer:
y=3x-6
Step-by-step explanation:
y=mx+B
y replaces the b
the slope replaces the m
Error Analysis: Henry incorrectly said the rate 1/2 over 1/4 can be written as the unit rate 1/8 pound per quart.
What is the correct unit rate? What was Henry's likely error?
Answers
Answer:
1/2 = 2/4 = 4/8
Step-by-step explanation:
his error was probably that he only change the denominator since there all even
Neeeeeeeeeeeeeeed help!!!!!??!??!!
Answers
Answer:
-15?
Step-by-step explanation:
It's hard to tell where the point is exactly
how do i list ratios from least to greatest quickly?
Answers
Answer: you can look for the lowest number then you can just count up. There is no real hack for it
Step-by-step explanation:
Can someone please help me with this
Answers
Answer:
C
Step-by-step explanation: