-7x+3y=1 and 3y+12=-6
Answers
Answer:
the sums are given in explainationhope you like the answerplease mark the answer as brainliest
Related Questions
Use the given equation to complete the table: s = 16 t squared t (sec) s(ft) 0 1 2 3 Using the points from the table select the graph that best represents the equation. Graph A On a coordinate plane, a parabola opens up. It goes through (negative 1, 16), has a vertex at (0, 0), and goes through (1, 16). Graph B On a coordinate plane, a parabola opens up. It goes through (negative 1, 4), has a vertex at (0, 0), and goes through (1, 4). a. 0, 16, 64, 144; Graph A b. 0, 4, 8, 12; Graph A c. 0, 16, 64, 144; Graph B d. 0, 4, 8, 12; Graph B
Answers
Answer:
a 0, 16, 64,144 graph A edge
Step-by-step explanation:
The graph that best represents the equation is option A.
What is an Equation?
An equation is a mathematical statement that is formed when two algebraic expressions are equated using an equal sign.
The equation is
s = 16t²
The table is
s t
0 16*0 = 0
1 16 * 1 = 16
2 16 * 4 = 64
3 16 * 8 = 108
The points represents a parabola opening upwards, vertex is at (0,0) and goes through the point (-1,16)
This has been confirmed by the graph plotted for the equation.
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A population of a particular yeast cell develops with a constant relative growth rate of 0.4225 per hour. The initial population consists of 3.9 million cells. Find the population size (in millions of cells) after 3 hours. (Round your answer to one decimal place.)
Answers
Answer: The population after 3 hours is 13.9 mill.
Step-by-step explanation:
When we have an exponential with:
A = initial population.
r = constant relative growth rate:
t = time.
The function that models this is:
P(t) = A*e^(k*t)
In this case we know that:
A = 3.9 mill.
r = 0.4225 1.
Then the function that models the population of this yeast cell is:
P(t) = (3.9 mill)*e^(0.4225*t)
where t represents the time in hours.
Then if we want to know the population after 3 hours, we should replace t by 3.
P(3) = (3.9 mill)*e^(0.4225*3) = 13.85 mill.
And we want to round our answer to one decimal place, then we must look at the second decimal place, we can see that is a 5, so we should round up.
The population after 3 hours is 13.9 mill.
The exponential function is often used to model the growth or decay of a population
The population size of the yeast cell after 3 hours is 7.9 million
The given parameters are:
[tex]\mathbf{a = 3.9m}[/tex] --- initial number of cells
[tex]\mathbf{r = 0.4225/hr}[/tex] --- rate
The nth term of an exponential function is:
[tex]\mathbf{f(n) = a(1 + r)^{n-1}}[/tex]
After 3 hours; n = 3
So, we have:
[tex]\mathbf{f(3) = a(1 + r)^{3-1}}[/tex]
Substitute values for a and r
[tex]\mathbf{f(3) = 3.9(1 + 0.4225)^{3-1}}[/tex]
[tex]\mathbf{f(3) = 3.9(1 + 0.4225)^{2}}[/tex]
[tex]\mathbf{f(3) = 3.9 \times (1.4225)^{2}}[/tex]
[tex]\mathbf{f(3) = 7.9}[/tex]
Hence, the population size of the yeast cell after 3 hours is 7.9 million
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Is 4.55555..... a rational or irrational number?
Answers
Answer:rational
Step-by-step explanation:
Answer:
It is rational
Step-by-step explanation:
Since it repeats 5 over and over again it is rational. If the decimal didn't have a pattern like the number 4.598389599527... then the answer would be irrational.
what is the slope of the line that passes through the points (-3,1) and (7,-14)
Answers
Answer:
[tex] - \frac{3}{2} [/tex]
Step-by-step explanation:
[tex]\boxed{gradient = \frac{y1 - y2}{x1 - x2} }[/tex]
Using the formula above,
slope of line
[tex] = \frac{1 - ( - 14)}{ - 3 - 7} \\ = \frac{1 + 14}{ - 10} \\ = \frac{15}{ - 10} \\ = - \frac{3}{2} [/tex]
What is 1000% percent of 99.
Answers
I think the answer would be 990.
What is the vertical distance between 670 feet above sea level and 300 feet below sea level? You answer
Answers
Answer:
970 feet is the difference between 670 feet above sea level and 300 feet below sea level.
Step-by-step explanation:
670-(-300)
970 feet
2
What are the coordinates of the image?
Rx-axis (1, 6)
Answers
Answer:
over one to the right, up six
The reflection of the point (1,6) across the x-axis is (1,-6).
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
A figure's mirror image in the axis or plane of reflection is its image by reflection.
Given that the coordinate is (1,6). The reflection of the coordinates across the x-axis will be,
R(x₁ , y₁) ⇒ R(x₁,-y₁)
R(1,6) ⇒ R( 1,-6)
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I need help ASAP ......
Answers
Answer: No, Madeline did not ser up her work correctly.
Step-by-step explanation:
It’s supposed to be 4-12 over(/) 7-9 which it would equal to m=4
Remember that the formula is y(2)-y(1)/x(2)-x(1) and they did y(2)-y(1)/x(1)-x(2)
Hope this helped!!
An attic floor is shaped like a triangle with a height of n yd and a base of 6 yd.
Which expression represents the area of the floor?
A. 6n
B. 3n
C. 3n/2
D. N+6
Please explain I don't get it helpppp
Answers
Explanation:
Area of triangle = (Base x Height)/2
Base = 6 yd
Height = n yd
=> A = (6 x n)/2
=> A = 6n/2
=> A = 3n
I don't understand this answer.
Answers
Answer:
10 units I think im not sure
Step-by-step explanation:
what is the square root of 49
Answers
Answer:
2
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Write the number in exponential form with the base of 7
[tex]\sqrt{7^{2} }[/tex]
Reduce the index of the radical and exponent with 2
7
Solution
7
DISTANCES OF PLANETS TO SUN & EARTH Saturn Closest to sun: 135 billion km Mercury Closest to sun: 40 million km Closest to Earth: 773 million km Venus Closest to sun 107 million to Closest to Earth: 40 million km Earth Closest to sun: 147 million km Clowest to Earth:12 billion km Uranus Closest to sun 275 billion km Closest to Earth: 257 billion, kun Neptune Closest to sum: 4.45 billion km Closest to Earth: 43 billion km Pluto Mere Closest to sun 205 milion km Closest to Earth:05 million km Jupiter Closest to sun 41 million km Closest to sun 444 billion kan to Earth: 4.28 billion kin Closest to Earth 588 million km
Answers
Answer:
whats the question
Step-by-step explanation:
What system works with the circulatory system to provide oxygen to cells?
Integumentary System
Repertory System
Skeletal System
Digestive System
Answers
Answer:
Step-by-step explanation:
bro im out n can come scoop
1. The value of 25 x (8.5) is:
a.
More than 250
b. Less than 250
Answers
Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The value of 25×8.5 is less than 250. The correct option is B.
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
The value of 25×8.5 is needed to be calculated in order to know if the product is more than 250 or not. Therefore, the value of the 25×8.5 can be calculated as,
25×8.5
= 25 × (85/10)
= 2125/10
= 212.5
Since the value of the product of 25 and 8.5 is 212.5 which is less than 250. It can be calculated that the number is smaller than 250.
Hence, the value of 25×8.5 is less than 250.
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what is y + 1=x in slope intercept form?
Answers
Answer:
My answer is in the equation
Step-by-step explanation:
where m is the slope and b is the y-intercept. Subtract x from both sides of the equation. Multiply both sides by −1
HELP! WILL MARK BRAINLIEST!
Answers
Answer:
1
Step-by-step explanation:
Convert 299 fractions, 1/2, 1/3, 1/4, ……, 1/300 to decimals. How many finite fractions in those fractions?
Answers
9514 1404 393
Answer:
20
Step-by-step explanation:
An equivalent decimal fraction is non-repeating if and only if the fraction denominator has a prime factorization consisting only of powers of 2 and 5.
Powers of 2 less than 300 are ...
2, 4, 8, 16, 32, 64, 128, 256
Powers of 5 less than 300 are ...
5, 25, 125
A fraction will have a finite decimal representation if its denominator is one of these numbers, or some product of these numbers.
Products would include ...
10, 50, 250, 20, 100, 40, 200, 80, 160
The count of all of the listed numbers is ...
8 powers of 2 + 3 powers of 5 + 9 powers of 2 and 5 = 20 listed numbers
There are 20 finite decimal fractions among the fractions 1/2 ... 1/300.
The problem has been started for you
780 divided by 9
What is the quotient
Answers
Answer:
B. 86.6 :))
Step-by-step explanation:
took the test on edge
V 11. What is the result of multiplying 2.5 x 10 10 by 3.5 x 10 -7
Answers
Answer:
(2.5 x 10^10) x (3.5 x 10^-7) <--- When multiplying, numbers can be arranged in any order.
= (2.5 x 3.5) x (10^10 x 10^-7) <--- When you multiply numbers with the same base, add their exponents.
= 8.75 x 10^3
Step-by-step explanation:
Write an equation (any form) for the quadratic graphed below
Answers
Answer:
[tex]-\frac{1}{2} (x - 1)^2 + 1[/tex]
Explanation:
Since it is flipped and now extending to negative infinity, we make [tex]x^2[/tex] negative, so it is [tex]-x^2[/tex].
Lastly, there are a few shifts, it is shifted right once and up once.
To shift it right once, you would subtract a 1 from x directly: [tex]-(x - 1)^2[/tex]
To shift it up once, you would add 1 to the entire equation: [tex]-(x - 1)^2 + 1[/tex]
To account for the stretching, it would be: [tex]-\frac{1}{2} (x - 1)^2 + 1[/tex]
what is the equation of the line that passes through (-1,-4) and (9,-5) ?
Answers
Answer:
y=-1/10 x - 41/10
Step-by-step explanation:
slope: y2-y1 / x2-x1 = -5-(-4) / 9-(-1) = -1/10
y= -1/10 x +b, substitute (-1,-4) to solve b
-4=-1/10 (-1) +b
b=-41/10
the price of an ink cartridge for scott's printer has decreased from $15.00 to $12.00. what is the percent of decrease?
a. 20%
b. 25%
c. 50%
d. 80%
Answers
Answer:
a
Step-by-step explanation:
15*20%=3
15-3=12
Determine weather or not the following is a function:{-2,9)
Answers
Answer:
THis is a function
Step-by-step explanation:
Each x value corresponds to one y-value. It is a function.
Y-3=2x in slope intercept form
Answers
Slope int form is y=Mx+b
So you have to add three to both sides to get the y alone
How can you use mental math to find the produce 6 x 295?
Answers
Answer:
Break up the number
Step-by-step explanation:
6 x 295 = 1770
295 = 200 + 90 + 5
(6 x 200) + (6 x 90) + (6 x 5) = 1770
1200 + 540 + 30
1740 + 30
1770
The value of the expression 6 x 295 using the property of multiplication will be 1770.
What is Algebra?Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and correctly.
The numbers are given below.
6 and 295
Then the multiplication of the numbers 6 and 295 will be given by putting a cross sign between the numbers 6 and 295. Then we have
⇒ 6 x 295
⇒ 1770
The value of the expression 6 x 295 will be 1770.
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The temperature at 1:00 pm was 94° F and it was
82° F at 10:00 pm. Find the average rate of change
in degrees Fahrenheit per hour. Write a sentence
interpreting the slope as an average rate of change.
Be sure to include units in your answer.
Answers
The temperature dropped an average of 3 Fahrenheit per 1 hour.
The slope = -3/1
Are the two fractions proportional? 6/8 and 24/28
Answers
Answer:
no
Step-by-step explanation:
for them to be proportional they would be equal when simplified
if we simplify both
6/8=3/4 (divide by 2)
24/28=6/7 (divide by 4)
they are not the same therefore not proportional
Write and solve an equation to find the value of x and the missing angle measures
Answers
Answer:
6x-4=4x+14
Step-by-step explanation:
x=
9
FIRST TO ANSWER GETS BRAINLIEST
The product of 1.3 times 10 Superscript negative 4 and a number n results in 2.6 times 10 Superscript 12. What is the value of n?
A. 2 times 10 Superscript negative 8
B. 2 times 10 Superscript negative 3
C. 2 times 10 Superscript 16
D. 2 times 10 superscript 48
Answers
Answer:
The answer is c
Step-by-step explanation:
got it right on edge
Answer:
C / 2 times 10 Superscript 16
Step-by-step explanation:
Which expression is equivalent to 6(x-4)
Answers
Answer:
is it multiple choice? is 6x -24 an option?