Answers
Related Questions
explain why the graph of [tex]y=2x^{2} +4x-k+1[/tex] has no x-intercepts when k=-5
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To rent a jet ski at Sam’s costs $25 plus $3 per hour. At Claire’s, it costs $5 plus $8 per hour. At how many hours will the rental cost at both shops be equal?
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step by step explanation:
3x - 25 = 8x + 5
- 3x. -3x
25 = 5x + 5
-5. -5
20 = 5x
/ 5. /5
X=4
Hope this helps
ANSWER QUICK I WILL GIVE BRAINLIEST THANKS
Answers
Answer:
25/14
Step-by-step explanation:
Answer:
7/2
Step-by-step explanation:
nth term of -7 -12 -17 -22 -27
Answers
Answer:
[tex]a_n=-2-5n[/tex]
Step-by-step explanation:
Arithmetic Sequences
The arithmetic sequences are those where any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.
The equation to calculate the nth term of an arithmetic sequence is:
[tex]a_n=a_1+(n-1)r[/tex]
Where
an = nth term
a1 = first term
r = common difference
n = number of the term
We are given the sequence
-7 -12 -17 -22 -27 ...
The first term of this sequence is a1=-7. We can calculate the common difference by subtracting two consecutive terms:
r = -12 - (-7) = -12 + 7 = -5
The nth term is:
[tex]a_n=-7+(n-1)(-5)[/tex]
Multiplying:
[tex]a_n=-7-5n+5[/tex]
Simplifying:
[tex]\boxed{a_n=-2-5n}[/tex]
Solve for x.
3(x - 4) = 2x + 6
Α. Ο
B. 2
C. 3.6
D. 10
E. 18
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3x - 12 = 2x + 6
3x = 2x + 6 + 12 (put all of the integers on one side)
3x = 2x + 18 (simplify - collect like terms)
3x - 2x = 18 (put all of the unknowns on one side)
x = 18 (simplify - collect like terms)
Therefore, we know that x is equal to 18, and so the answer is E.
4 + 4 (1 + 5m) = -132
Answers
Answer:
m=-7
Step-by-step explanation:
4+4+20m=-132
8+20m=-132
20m=-132-8
20m=-140
m=-7
The ratio of money in Terry's bank account to Faye's bank account was 3:5.
Terry then put £220 in his account and Faye withdrew £300 from her account.
They now had the same amount in their accounts.
How much did Terry initially have?
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Answer:
Terry had £780 initially and Faye had £1300
Step-by-step explanation:
System of Equations
We'll call the following variables:
x = Terry's balance in his bank account
y = Faye's balance in her bank account
The initial relation between them is:
[tex]\frac{x}{y}=\frac{3}{5}[/tex]
Cross-multiplying:
5x = 3y [1]
If Terry put £220 in his account he had x+220 and if Faye withdrew £300 from her account, she had y-300. Both quantities are equal, thus
x + 220 = y - 300
Subtracting 220:
x = y - 520 [2]
Substituting in [1]
5(y - 520) = 3y
Multiplying:
5y - 2600 = 3y
Adding 2600 and subtracting 3y:
2y = 2600
Dividing by 2:
y = 1300
From [2]:
x = 1300 - 520
x = 780
Terry had £780 initially and Faye had £1300
Simplify: 3 square root 3 + square root 12
Answers
Answer:
Step-by-step explanation:
Number Square Root (√)
12 3.464
Is (2,4), (3,9), (4,16), (5,25) a linear function
Answers
Answer:
Step-by-step explanation:
Yes
Chang and Carlotta solve this problem in two different ways.
You have $50 in your bank account.
You make $8 per hour mowing lawns.
How many hours must you mow lawns to have a total of $130 in your account?
Use the drop-down menus to complete the sentences below.
Answers
Answer:
10 hours
Step-by-step explanation:
130-50-80
80 divided by 8 equals 10
Answer:
Hope this helps:)
3 consecutive integers is 234. What is the equation to solve this equations and what are the 3 integers?
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Answer:
1. The equation to solve this equations is:
= 3x = 231
2. The three integers are 77, 78 and 79.
Step-by-step explanation:
The sum of 3 consecutive integers = 234
let x = first integer
let x+1 = second integer
let x+2 = third integer
Therefore,
= x + x + 1 + x + 2 = 234
simplified to:
= 3x = 231
b) Adding three consecutive numbers adds the smaller number to itself three times, and then adding 1 for the second number, and two for the third number. So, the sum of the three consecutive numbers is divisible by 3. Therefore, to get the second (or middle) number, divide the total by 3, and then subtract 1 and add 2 to get the first and the third numbers, respectively.
Which term describes -8/27
Integer
Natural number
Rational number
Whole number
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Answer:
I would say rational numberStep-by-step explanation:
hope it helps :)
Which would show that the diagonals of HJKL are perpendicular? Select all that apply.
Answers
Answer: A and D
Step-by-step explanation:
The diagonals are perpendicular since,
- HJ ⊥ KL
- Slope of HJ x Slope of KL = -1
Options A and D are the correct answer.
What is a parallelogram?Parallelogram is a quadrilateral that has two pairs of parallel sides.
In a parallelogram, opposite sides and angles are equal.
The adjacent angles add up to 180 degrees.
We have,
HJKL is a quadrilateral.
The diagonals are HJ and KL.
To show that the diagonals are perpendicular,
We can have the following.
- HJ ⊥ KL _____(1)
- Slope of HJ x Slope of KL = -1 _____(2)
Thus,
The diagonals are perpendicular since,
- HJ ⊥ KL
- Slope of HJ x Slope of KL = -1
Learn more about parallelograms here:
https://brainly.com/question/1563728
#SPJ2
How can you prove a polynomial identity?
Answers
Answer:
To show that an equation is an identity: Start with either side of the equation and show that it can algebraically be changed into the other side. Or start with both sides of the equation and show that they both can be changed into the same algebraic expression.
Step-by-step explanation:
Help please 4x-22=9x + 2(1 - 4x)
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Answer:
[tex]4x - 22 = 9x + 2 - 8x \\ 4x - 22 = x + 2 \\ 4x - x = 2 + 22 \\ 3x = 24 \\ x = 8[/tex]
Ellen started playing a video game at 8:30 A.M. It took her 2 hours and 35 minutes to beat the first level and 1 hour and 30 minutes to beat the second level. Ellen played the final level for 25 minutes and finished the game. What time was it when Ellen stopped playing the game? ]
Answers
Answer:
1:00 PM
Step-by-step explanation:
8:30 AM + 2.35h + 1.30h + 25m = 1:00 PM
What is the quotient in simplest form?
Four-fifths divided by 8
StartFraction 1 Over 10 EndFraction
One-half
8
10
Answers
Answer:
StartFraction 1 over 10 end fraction
Answer:
is one over ten startfraction
Step-by-step explanation:
Please help me with the correct answer
Answers
Answer:
225 ft squared
Step-by-step explanation:
Area is length by width and since its a square the length and width are the same.
15 x 15 = 225
Answer:
225 ft squared
Step-by-step explanation:
area is L x W, area of a square is s^2
so 15ft x 15ft = 225 ft squared
p+4= 15
What is the value of p?
A. 6
O 8.9
OC. 11
D. 19
Answers
p+4=15
-4=-4
p=11
Which side is adjacent to
Answers
Answer:
Answer is on the pic
Step-by-step explanation:
I hope it's helpful!
I don’t know what the answer is, help plz
Answers
Answer:
[tex]10x^{2}[/tex] + 20x + 50
Step-by-step explanation:
[tex]a^{2} + b^{2} = c^{2} \\(x+7)^{2} + (3x+1)^{2} = 10x^{2} + 20x + 50[/tex]
Find the volume of a right circular cone that has a height of 11.6 in and a base with a
radius of 7.6 in. Round your answer to the nearest tenth of a cubic inch.
Answers
Answer:
701.64
Step-by-step explanation:
Lori needs more than 250 signatures to run for the position of class president for her middle school. She already has 75 signatures and believes that she can get 25 more signatures each day. She wants to figure out how many days, d, she should collect the signatures she needs. Which inequality and solution for d correctly represent Lori’s situation?
Answers
Answer:
75 + 25d > 250
d > 7
Step-by-step explanation:
Number of signatures needed : > 250
Amount of signatures ready = 75
Exoected number of signatures per day = 25
Number of days, d, needed signatures will be collected ;
Number of ready signatures + (expected number of signatures per day * number of days) > number of signatures needed
Mathematically,
75 + 25d > 250
25d > 250 - 75
25d > 175
d > 175 / 25
d > 7
A circle has an area of 314.1592. What is the diameter? (round to the nearest whole number)
Answers
Answer:
20
Step-by-step explanation:
The area of a circle is equal to pi*radius^2
We can then write this as
314.1592=π*r^2
We then divide pi to get
100=r^2
take the square root and you find that the radius equals around 10
The diameter is always equal to the radius times two which means that the diameter is 20
hope this helps
INEQUALITY WORD PROBLEM!!! GIVING BRAINLIEST AND MORE POINTS IF ANSWERED QUICKLY AND CORRECTLY.!!
Answers
Answer:thanks
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
IM HAVING A MENTAL BREAK DOWN. SOMEONE DO DAY 14 FOR ME PLEASE I BEG. IM CRYING AND STRESSED. I HAVE A TEST TOO
Answers
Answer:
7800 meters and 1600 miligrams
hope you feel better
Answer:
Step-by-step explanation:
Farad hiked 7.8 kilometers or 7800 meters
Humming bird ways 1600 milligrams
Hope this helps
solve for x by factoring and using the zero product property
3x^2-13x-10=0
Answers
move all terms to the left side and set equals to zero. then set each factor equal to zero
117 is what percent of 144.3
Answers
Answer:
81.25
Step-by-step explanation:
Answer:
81.081%
Step-by-step explanation:
Put 117 into the numerator's place and 144.3 into the denominator's. 117/144.3= .810810... Move the decimal two places to the right to get your percentage.
What value of x will make the two triangles similar? plz help
Answers
Answer:
x = 60
Step-by-step explanation:
The Factor of sides is 1.5 and I found that out by dividing one side to the identical side on the other triangle then you multiply the bottom side by 1.5 to get the answer
please give brainliest
I need help asap on number nine. it would be much appreciated. only number 9
Answers
Answer:
18
Step-by-step explanation:
they are vertical angles so they are equal
6y+40=10y-32
6y+40+32=10y-32+32
6y+72=10y
6y-6y+72=10y-6y
72=4y
72/4=4y/4
18=y
