Answer:
1. x=6
2. x=2
Step-by-step explanation:
2:6
x:18
From 6 to 18, 6 was multiplied by 3. To keep the equality, we must multiply the other side by three as well. Therefore, x is equal to 2*3 which equals 6.
x=6.
5:7
(x+3):7
For this one, the second value did not change, so we know that x+3 has to equal 5. Therefore, x=2.
x=2
What is the y-intercept of a line that passes through the points (1-7) and (5-25)?
Given:
A line passes through the points (1,-7) and (5,-25).
To find:
The y-intercept of the line.
Solution:
The line passes through the points (1-7) and (5-25). So, the equation of the line is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-(-7)=\dfrac{-25-(-7)}{5-1}(x-1)[/tex]
[tex]y+7=\dfrac{-25+7}{4}(x-1)[/tex]
[tex]y+7=\dfrac{-18}{4}(x-1)[/tex]
[tex]y+7=-4.5(x-1)[/tex]
Subtracting 7 from both sides, we get
[tex]y=-4.5x+4.5-7[/tex]
[tex]y=-4.5x-2.5[/tex]
Putting x=0, we get
[tex]y=-4.5(0)-2.5[/tex]
[tex]y=0-2.5[/tex]
[tex]y=-2.5[/tex]
Therefore, the y-intercept of the given line is -2.5 and the vertex form of (0,-2.5).
The cost of 2 hamburgers, french fries, and a soft drink at a fast food restaurant would
be about
a) $15.
b) $50.
c) $5.
Answer:
a) $15
solving this realistically no fast food place would be above 50 or below 5 (unless is a discount thing)
Need help immediately I will give brainilest
Answer:
the answer is 12
I think
Throwing a ball describes what kind of graph.
Answer:
parabola
Step-by-step explanation:
The path followed by a ball can be modeled by a graph.
Throwing a ball is a parabola or quadratic graph.
When a ball is thrown, the path it follows can be represented by:
[tex]\mathbf{f(x) = ax^2 + bx + c}[/tex]
or
[tex]\mathbf{f(x) = a(x - h)^2 + k}[/tex]
The above equations are functions of a parabola or quadratic graph.
Hence, throwing a ball is a parabola or quadratic graph.
Read more about graphs at:
https://brainly.com/question/9915751
Evaluate 8x^2 + 2x + 5, when x =7
Answer:
432
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
8x² + 5x + 5
x = 7
Step 2: Evaluate
Substitute in x: 8(7)² + 5(7) + 5Evaluate exponents: 8(49) + 5(7) + 5Multiply: 392 + 35 + 5Add: 427 + 5Add: 4323 is less than w, and 8 is greater than w
Answer:
Whats the question?
Step-by-step explanation:
Srry i couldnt help
Answer: 3 < w < 8
Step-by-step explanation:
If 3 is less than w you would write that as 3 < w.
Now you have 8, which is greater than w and that is written as 8 > w or w < 8.
Therefore, 3 < w < 8
What is the value of this expression?
8-4x3^3+11
Answers:
119
23
-89
-17
[tex]8 - 4( {3}^{3} ) + 11 \\ 8 - 4(27) + 11 \\ 8 - 108 + 11 \\ 8 - 97 \\ - 89[/tex]
Which is closest to the quotient 4,367 ÷ 0.004 A. 1,000 B. 10,000 C. 100,000 D. 1,000,000 explain how you got the answer pls btw 6th grade
Answer:
D) 1,000,000
Step-by-step explanation:
Here it is.
Prokaryotic cells are cells that _____. Select all that apply.
1.are simple
2.have no nucleus
3.have cell walls with peptidoglycan
4.have membrane-covered organelles
probably 1 and 2, I'm only in 6th grade tho so I forgot (love the pfp btw)
Adult tickets cost $9 each and student tickets cost $6 each. A total of 29 tickets were sold worth $210. How many adult tickets were sold?
Answer: 12 adult tickets where sold
Step-by-step explanation:
Help please
Look at picture
Supplementary angles
Answer:
Both are supplementary angles so
(2x-3) +71 = 180
2x - 3= 180 - 71 = 109
2x = 109 +3 =112
X = 112 / 2= 56
x = 56
A isosceles triangle
B right triangle
C equiangular triangle
D equilateral triangle
please follow me
-3x^2+ 3
What is the difference quotient
Answer:
-6x - 3h
Step-by-step explanation:
Write as a function.
[tex]f(x)=-3x^{2}+3[/tex]
Consider the difference quotient formula.
[tex]\frac{f(x+h)-f(x)}{h}[/tex]
Find the components of the definition.
[tex]f(x+h)=-3h^{2}-6hx-3x^{2}+3\\f(x)=-3x^{2}+3[/tex]
Plug in the components.
[tex]\frac{f(x+h)-f(x)}{h}=\frac{f(x+h)=-3h^{2}-6hx-3x^{2}+3}{h}[/tex]
Simplify
[tex]\frac{3h(-h-2x)}{h}[/tex]
-6x - 3h
good luck, i hope this helps :)
4. Let's say you flip two colns, roll a six-sided die, and pick a random card out of a standard deck of cards. What is the probability of landing on two tails, rolling on an odd number, and
drawing a club card?
0.00
0.13
0.03
0.16
Answer:
0.03
Step-by-step explanation:
1/2x 1/2 x 13/52 x 3/6
39/1248 = 0.031 or 3%
Answer:
0.03
Step-by-step explanation:
Find x and Find m<MNO please help fast
Help please I’ll give u brainliest but pls explain how as well
Answer:
Its 9!
Step-by-step explanation:
6×3=18
18/2=9
Hope this helps and don't forget to follow!
Subtract the sum of 12xy –10y2 –18x2 and 9xy + 12y2 + 14x2 from the sum of
xy + 2y2 and 3y2 – x2.
Answer: -20xy + 3y² + 3x²
Step-by-step explanation:
(xy + 2y² + 3y² - x²) - (12xy - 10y² - 18x² + 9xy + 12y² + 14x²)
(xy + 5y² - x²) - (21xy + 2y² - 4x²)
xy + 5y² - x² - 21xy - 2y² + 4x²
-20xy + 3y² + 3x²
If a=6 and b=24 what is (a+b)^2
Answer:
900
Step-by-step explanation:
6+24=30
30^2=900
Answer:
900
Step-by-step explanation:
(a+b)^2
(6+24)^2
30^2= 900
The following are the temperatures of 10 days in winter in °C. -5, 1, -2, 7, -3, 9, 7, -5, -2, -5 Work out the mean temperature.
Answer:
probably 0.2 and sorry if wrong
Please answer and explain I’ll mark brainliest!!!!!
Answer:
See below
Step-by-step explanation:
Problem 1
If n is the smallest of the consecutive integers, the next integer would be n+1.
Problem 2
The equation is terms of n is going to be
s = n + n + 1 + n + 2 + n+3
Problem 3
Collect like terms on the right
s = 4n + 6
Problem 4
4n + 6 = s Subtract 6 from both sides
4n = s - 6 Divide by 4
n = (s - 6)/4
Problem 5
Solve for n when s = 2174
n = (2174 - 6)/4
n = 2168 / 4
n = 542
check
n = 542
n + 1 = 543
n + 2 = 544
n + 3 = 545
Total 2174 Just as it should
You deposit $3000 in an account earning 5% interest compounded monthly. How much will you have in the account in 15 years?
Answer:
9000
Step-by-step explanation:
Answer:
6236.78454 or 6236.78
Step-by-step explanation:
Use formula A=P(1+r)^t
A=3000(1+0.05)^180/12
*convert 15 years to moths* 180 months
A=3000(1.05)^180/12
A=3000(2.07892818 )
A=6236.78454 or 6236.78
Hope this helps ^-^
PLEASE HELPPPP! Emily is entering a bicycle race for charity. Her mother pledges $0.80 for every 0.5 mile she bikes. If Emily bikes 8 miles, how much will her mother donate?
Answer: $12.80
Step-by-step explanation:
:)
Answer:
$12.80 donated money if she bikes 8 miles. solved by finding out how much money she'll get in a mile add .80+.80 and get $1.60. this is way easier to set up equation instead if doing it by half mile. equation is y=1.6(x) // y is money donated, x is $1.60
Chapter 6 Study Guide
Tickets for a school play cost $6 for adults and $4 for students. At the end of the play, the school sold a total of 60 tickets
and collected $360
Answer:
what is the question
Step-by-step explanation:
The girls hockey team has 7 sixth grade and 9 seventh grade students on their team. What is the ratio of seventh grade students to sixth grade students?
Step-by-step explanation:
7:9 I'm pretty sure that's it
Find the area of the trapezoid at the right
Answer:
A = 15
Step-by-step explanation:
A = [tex]\frac{a+b}{2}h[/tex]
A = (3 + 7 ÷ 2) ÷ 3
A = 15
good luck, i hope this helps :)
A ladder is leaning against a building so that the distance from the ground to the top of the ladder is one foot less than the length of the ladder. Find the length of the ladder if the distance from the bottom of the ladder to the building is 5 feet.
A right triangle with the hypotenuse measuring x and one leg measuring x minus 1.
(1 point)
11 feet
14 feet
12 feet
13 feet
Answer:
Length of ladder (hypotenuse) = 13 ft
Step-by-step explanation:
Given:
Length of base (base) = 5 ft
Length of ladder (hypotenuse) = a
Distance between ground and ladder top (perpendicular) = a - 1
Find:
Length of ladder
Computation:
a² = 5² + (a-1)²
a² = 25 + a² - 2a + 1
2a = 26
Length of ladder (hypotenuse) = 13 ft
A hailstone falls from a cloud at a height of 1,600 ft. If the equation for height as a function of time is h(t) = -16t2 + initial height where t is time in seconds and h(t) is height in feet, how many seconds will it take for the hailstone to hit the ground? [?] seconds
Answer:
10 seconds
Step-by-step explanation:
The function is
[tex]h(t)=-16t^2+\text{Initial height}[/tex]
Initial height = 1600 ft
t = Time taken
[tex]0=-16t^2+1600[/tex]
[tex]\Rightarrow -16t^2=-1600[/tex]
[tex]\Rightarrow t^2=\dfrac{1600}{16}[/tex]
[tex]\Rightarrow t^2=100\\\Rightarrow t=\pm 10[/tex]
So, time taken by the hailstone to reach the ground is [tex]10\ \text{seconds}[/tex].
Answer:
10 seconds
Step-by-step explanation:
BRAINLYIST to first person to answer is correct.
Which graph shows the solution set for 2 x + 3 greater-than negative 9?
A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the left of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the right of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the left of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the right of the circle is shaded.
Answer:
i think its A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the right of the circle is shaded.
Step-by-step explanation:
So , the value of x is greater then -6 . So , Correct option is A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the right of the circle is shaded.
Combine the like terms to create an equivalent expression:
-3x - 6+ (-1)
Stuck? Watch a video or use a hint.
Answer: -3x-7
Step-by-step explanation:
SOMEONE PLEASE HELP WILL MARK BRAINLIEST PLEASE EXPLAIN
Answer:
a. (x+5)^2 = 49
b. (x+7)^2 = (x+1)^2
Step-by-step explanation:
So the term "a number" is always going to be x. input x into the sentences. "X plus five, then squared, is forty-nine". when they do "is __", that means equal to. In the second question, seven more than x is x + 7 (the two numbers are interchangeable here). Equivalent also means equal. hope this helped :)
Answer:
a: x + 5^2 = 49
b: 7>x^2=(put three lines not two) (1>x)^2
Step-by-step explanation: