Answer:
a = 19
If the rate of change is -8, everytime you do up for x you will minus 8. For example, x = 10 so y = 27 ; x=11 so y = 27-8 = 19 ; x = 12 so y = 19-8 = 11.
Therefore, when x is 11; y is 19
Pablo drove 715 miles in 11 hours.
At the same rate, how many miles would he drive in 9 hours?
Answer:
585 miles
Step-by-step explanation:
divide 715 by 11 so that you can see the mph (miles per hour). Then multiply that number by 9 for the amount of miles he would travel in nine hours
715/11=65
65x9=585
the electricity goes out in a house. the temperature in the house changes by -8 fahrenheit in 4 hours. on average, by how many degrees is the temperature changing per hour?
Answer:
-2 degrees per hour
Step-by-step explanation:
Answer:
-2 degrees per hr
Step-by-step explanation:
-7a + 2b - 3a - 3c what is it
Answer:
-10a + 2b - 3c
Step-by-step explanation:
hope this helps :)
Rewrite the expression in the form z^n
Answer:
[tex]z^{ \frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\sqrt{\frac{z}{z^{\frac{1}{3}} } } = \sqrt{z \times z^{-\frac{1}{3}}[/tex] [tex][ \ \frac{a}{a^x} = a \cdot a^{-x} \ ][/tex]
[tex]= \sqrt {z^{\frac{2}{3}}}\\\\[/tex] [tex][ \ a^x \cdot a^y = a^{ x+ y} \ ][/tex]
[tex]= (z^{\frac{2}{3}})^{ \frac{1}{2}}[/tex] [tex][ \ \sqrt{x^y} = (x^{y}) ^{\frac{1}{2}} \ ][/tex]
[tex]= z^ {\frac{1}{3}}[/tex] [tex][ \ (a^x)^y = a^{xy} \ ][/tex]
Write in standard form the equation of a line with a slope of -3/5 and a y intercept of -3
Answer:
5y+3x=-9
Step-by-step explanation:
Let us start by the general form of the standard equation, Ax+By=C. One way we can solve this problem is by finding the slope-intercept form of this equation, y=mx+b, and converting it into the standard equation. In the slope-intercept form, m represents the slope, b represents the y intercept.
From this problem, we are given both the slope and the y intercept. We know have the equation:
[tex]y=-\frac{3}{5}x -3[/tex]
Great! Now let us rearrange the terms so that the y and x terms are on one side of the equation.
[tex]y+\frac{3}{5} x=-3[/tex]
This seems right, but a standard equation must have coefficient values that are real numbers. So, A and B must be real numbers. We can do this by multiplying the entire equation by 5 and ridding the denominator of the A term.
[tex]5y+3x=-9[/tex]
I hope this helps! Please let me know if you have any questions :)
Work out the equation of the line that is parallel to the line y = 5x - 3 but also passes through (-2, -4).
Answer:
[tex]y = 5x + 6[/tex]
Step-by-step explanation:
Parallel lines have the same slope
→ Since the equation is [tex]y = 5x - 3[/tex] and the form of a linear equation is [tex]y = mx + b[/tex], with [tex]m[/tex] being the slope, therefore 5 is the slope
Which creates the equation this far:
[tex]y = 5x + b[/tex]
→ Now, substitute the values of the point (-2, -4) into equation [tex]y = 5x + b[/tex]
[tex](-4) = 5(-2) + b[/tex]
→ Solve for [tex]b[/tex]
[tex]-4 = -10 + b\\-4 + 10 = b\\6 = b[/tex]
Resulting in the equation :
[tex]y = 5x + 6[/tex]
(X+16),(4x-12),(x+10)
Answer:
Glad you're using brainly now! Next time put a worded question and the equation so we can know how to help you.
Step-by-step explanation:
If these are points:
If these are lines: first link to graph below
If you were looking for the LCM its 12x(X+16)(x+10)
Iff u were looking to add them: X+5x+14
If u were looking to multiply: 4x2X+28xX+64x2−120X+448x−1920
if u were looking to simplify the matrix: X+16,4x−12,x+10
i hope this helped, im not sure what you wanted help with
A closed container has 2.04 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10−24 grams. Which of the following shows and explains the approximate total mass, in grams, of all the atoms of the gas in the container?
0.34 grams, because (2.04 ⋅ 1.67) ⋅ (1023 ⋅ 10−24) = 3.4068 ⋅ 10−1
0.37 grams, because (2.04 + 1.67) ⋅ (1023 ⋅ 10−24) = 3.71 ⋅ 10−1
3.41 grams, because (2.04 ⋅ 1.67) ⋅ (1023 ⋅ 10−24) = 3.4068
3.71 grams, because (2.04 + 1.67) ⋅ (1023 ⋅ 10−24) = 3.71
Answer: 0.34 grams
Step-by-step explanation:
Given:
Number of atoms in a closed container
Weight of one atom
Total mass of all the atoms of the gas in the container
Thus A is the right option.
Answer:
0.34 grams
Step-by-step explanation:
find the value of x.
Answer:
139 degrees
Step-by-step explanation:
we only have a central angle here (angle at the center of the circle).
and that angle remains the same along these 2 lines all the way out to the circle arc (and beyond, wherever these 2 lines take us).
so, if there is nothing missing in this graph, then x is the same as the inner angle : 139 degrees
I need help with question please help me it’s due today
Answer:
A.) 4 x (y + 7)
Step-by-step explanation:
4 times means that you are going to be multiplying something by 4. It says 4 times the sum of y and 7. This means that you are going to multiply whatever y and 7 equal by 4. Sum means addition. So that's going to be that you are multiplying what the combined total of y and 7 is by 4.
I hope this helped :)
Two lines are intersecting. What is the value of x? Enter your answer in the box. Two straight lines intersecting each other where the consecutive angles formed are x plus twenty three degrees and two x plus four degrees.
Answer:
x = 51
Step-by-step explanation:
Supplementary angles total 180º
(2x + 4) + (x + 23) = 180
Combine like terms
3x + 27 = 180
Subtract 27 from both sides
3x = 153
Divide both sides by 3
x = 51
Answer:
Hello! x = 51
Step-by-step explanation:
OMG I CAN ANSWER FINALLY!
it is forming a supplementary angle meaning it will add up to 180 degrees
51 × 2 = 102 102 + 4 = 106
51 + 23 = 74
106 + 74 = 180 therefore x = 51 Hope that helps.
The diagram shows a sector OAPB of a circle, centre O.
AB is a chord of the circle.
OA = OB = 5.4 cm.
Angle AOB = 72°
Calculate the area of the shaded segment APB.
Give your answer correct to 3 significant figures.
Answer:
4.44 cm²
Step-by-step explanation:
If the diagram attached below is required to complete the question,
Applying,
Area of the shaded segment(A) = Area of the sector- area of the triangle
A = (πr²∅/360)-(r²sin∅/)2................ Equation 1
Where r = radius of the circle, ∅ = angle at the center of the circle,π = pie
From the question,
Given: r = 5.4 cm, ∅ = 72°
Constant: π = 3.14
Substitute these values into equation 1
A = (3.14×5.4²×72/360)-(5.4²/2×sin72)
A = 18.31-13.87
A = 4.44 cm²
which function is graphed below?
Answer:
f(x) = sin(x)
Step-by-step explanation:
sin(x) = 0 for x = n×pi, n>=0
sin(x) = 1 for pi/2 and so on
so, clearly that graph is a pure sine wave.
What is the value for X?
Answer:
5
Step-by-step explanation:
6x + 4 + 73 + 73 = 180
6x + 150 = 180
6x = 30
x = 5
Those little marks on AB and BC denote congruence. That makes the triangle isoceles. That means the base angles are equal. Both 73.
Triangle Sum Theory states all angles of a triangle add to 180.
Give FIVE (5) real life examples of functions
Answer:
Physics - The position of a particle experimenting an uniform accelerated motion. (Quadratic function)
Chemistry - The velocity of the chemical reaction as a function of temperature. (Exponential function)
Physics - Convective heat transfer of an element with its surroundings. (Linear function)
Physics - Time conversion from seconds to minutes. (Linear function)
Physics - Radiative heat transfer from an element. (Quartic function)
Step-by-step explanation:
There are many examples of applications of function in real life:
Physics - The position of a particle experimenting an uniform accelerated motion. (Quadratic function)
[tex]y = y_{o} + v_{o}\cdot t + \frac{1}{2}\cdot a \cdot t^{2}[/tex] (1)
Where:
[tex]y[/tex] - Current position.
[tex]y_{o}[/tex] - Initial position.
[tex]v_{o}[/tex] - Initial velocity.
[tex]a[/tex] - Acceleration.
[tex]t[/tex] - Time.
Chemistry - The velocity of the chemical reaction as a function of temperature. (Exponential function)
[tex]k = A\cdot e^{-\frac{E_{o}}{R\cdot T} }[/tex] (2)
Where:
[tex]A[/tex] - Frequency factor.
[tex]E_{o}[/tex] - Activation energy.
[tex]R[/tex] - Ideal gas constant.
[tex]T[/tex] - Temperature.
[tex]k[/tex] - Kinetic constant.
Physics - Convective heat transfer of an element with its surroundings. (Linear function)
[tex]\dot Q = h\cdot A_{s} \cdot (T-T_{\infty})[/tex] (3)
Where:
[tex]h[/tex] - Convective constant.
[tex]A_{s}[/tex] - Surface area.
[tex]\dot Q[/tex] - Heat transfer rate.
[tex]T_{\infty}[/tex] - Temperature of the surroundings.
[tex]T[/tex] - Surface temperature of the element.
Physics - Time conversion from seconds to minutes. (Linear function)
[tex]t' = \frac{1}{60}\cdot t[/tex] (4)
Where:
[tex]t[/tex] - Time, in seconds.
[tex]t'[/tex] - Time, in minutes.
Physics - Radiative heat transfer from an element. (Quartic function)
[tex]\dot Q = \epsilon \cdot \sigma \cdot A_{s}\cdot T^{4}[/tex] (5)
Where:
[tex]\dot Q[/tex] - Heat transfer rate.
[tex]T[/tex] - Surface temperature of the element.
[tex]A_{s}[/tex] - Surface area.
[tex]\epsilon[/tex] - Emissivity.
[tex]\sigma[/tex] - Stefan-Boltzmann constant.
When figuring out the total amount of debt you are responsible for, you should include: a) Car loans and home loans b) Car loans, home loans, and school loans c) Car loans, home loans, school loans, and any credit card debt d) Any debt that must be repaid within 3 years
Answer:
Car loans,home loans,school loans,and any credit card debt
Answer:
C)
Step-by-step explanation:
¿cuál es el máximo común divisor de 44c⁵, 22c³ y 11c⁴?
Please Help if not the right answer you will get reported if u are wasting this question for points
7a* Consider the distance is x
2/3x = 240
x = 360
The Distance between two points = 360 Km
7b* Consider the average speed at 2/3 distance was V
(45+V)/2 = 54
45+V = 108
V= 108-45= 63km/hr
The average speed for the last 2/3 trip was 63 km/hr
please solve thissssss 5x + 3x = 28
Answer:
x= 3.5
Step-by-step explanation:
5x + 3x = 28
8x = 28
x = 28/8
x = 3.5
Answer:
5x + 3x = 28
8x=28
x=28/8
x=3.5
PLEASE HELP!! (Look at the photo)
Answer:
option A. Values greater than 1
Step-by-step explanation:
5 - 2x < 3
5 - 3 < 2x
2 < 2x
1 < x
Answer: i think it’s A.
Step-by-step explanation:
Try answer the following:
-299= -3×n+1
n=
Answer:
[tex]n = 100[/tex]
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
PLEASE HELPPP!!
What number line represents the solution set for the inequality 3(8-4x)<6(x-5)?
Answer:
3(8-4x) < 6(x-5)
24-12x < 6x-30
24+30 < 6x+12x
54 < 18x
54\18 < x
3 < x
It means the ans is option no. b
Step-by-step explanation:
3(8-4x)<6(x-5)
24-12x<6x-30
-12x-6x<-30-24
-18x>-54
Divide both sides by -18
=x>3
Ans is B(second number line)
A line has a slope of
3/2
and a y-intercept of
4/5
Which of the following is an equation of the line?
9514 1404 393
Answer:
(d) 15x -10y = -8
Step-by-step explanation:
Using the given values for slope (m) and y-intercept (b), the slope-intercept form of the equation is ...
y = mx + b
y = 3/2x +4/5
Multiplying both sides by 10 gives ...
10y = 15x +8
Subtracting 10y+8 from both sides, we have ...
-8 = 15x -10y
In standard form, this is ...
15x -10y = -8
3. Fred bought an LCD TV 12 inches long. The diagonal of the LCD TV
measures 20 inches. Find the width of of the tv
Answer: 16 inches
Step-by-step explanation:
To solve this question, we will use the Pythagoras theorem which will be:
Diagonal² = Length² + Width²
20² = 12² + width²
400 = 144 + width²
width² = 400 - 144
Width² = 256
Width = ✓256
Width = 16
The width of the tv is 16 inches
Find the 10th term of the geometric sequence 8,-16,32
Answer:
4096
GP = {8 , 16 , 32 , 64 , 128 , 256 , 512 , 1024 , 2048 , 4096...} Therefore , the 10th term of the sequence is 4096.
I hope it help you
The required 10th term of the geometric sequence 8, -16, 32 is -4,096.
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
To find the 10th term of the geometric sequence 8, -16, 32, we first need to determine the common ratio (r) between consecutive terms.
r = (second term) / (first term) = (-16) / 8 = -2
So the common ratio is -2.
The nth term of a geometric sequence is given by the formula:
[tex]a_n = a_1 * r^{(n-1)}[/tex]
where [tex]a_n[/tex] is the nth term, [tex]a_1[/tex] is the first term, r is the common ratio, and n is the term number.
To find the 10th term, we plug in a1 = 8, r = -2, and n = 10:
[tex]a_{10} = 8 * (-2)^{(10-1)}a10 = 8 * (-2)^9a_{10} = 8 * (-512)a_{10} = -4,096[/tex]
Therefore, the 10th term of the geometric sequence 8, -16, 32 is -4,096.
Learn more about geometric progression here: https://brainly.com/question/4853032
#SPJ2
Solve each proportion.
6/n-6 = 8/n
* please show the work too!
9514 1404 393
Answer:
n = 24
Step-by-step explanation:
Multiply the given equation by the product of denominators. Then subtract 6n and go from there.
[tex]\dfrac{6}{n-6}=\dfrac{8}{n}\\\\6n=8(n-6)\qquad\text{rid of fractions}\\\\0=2n-48\qquad\text{subtract 6n, simplify}\\\\0=n-24\qquad\text{divide by 2}\\\\\boxed{24=n}\qquad\text{add 24}[/tex]
_____
Alternate solution
Any proportion can be written 4 ways. If we write this one "sideways," we have ...
6/8 = (n -6)/n
1 -1/4 = 1 -6/n . . . . . expand in parallel fashion
6/n = 1/4 . . . . . . . . subtract 1, multiply by -1
n = 24 . . . . . . . . . multiply by 4n
__
Another alternate solution (can be done mentally)
The above "sideways" proportion can be reduced to ...
3/4 = (n -6)/n
The difference between values on the left is 1 unit. On the right, the difference between values is 6. (The numerator is 6 less than the denominator.) The denominator on the left (4) is 4 times the difference, so the denominator on the right (n) will likewise be 4 times the difference: n = 4·6 = 24. Check: 3/4 = 18/24.
Here is a picture of three towers.
Not all the cubes can be seen in the towers.
Edith uses 1 cube to build tower 1.
Edith uses 6 cubes to build tower 2. There are 5 cubes on the bottom layer.
The sequence below shows the number of cubes used for the bottom layer of each tower.
Answer:
nth term = the previous number times 4(x-1)
Step-by-step explanation:
As you see the first tower has 1 then it is 5 for the next tower and then it is 13 for the next tower and then 25. Well this means that as you see, the expressions adds 4 to the previous 4 and then adds to the tower. Let me show you how it works.
Tower 1: 1
Tower 2: 1 + 4 = 5
tower 3 : 5 + 8 = 13
tower 4: 13 + 12 = 25
tower 5: 25 +16 = 41
a rectangle is 12 feet long and 5 feet wide. if the length of the rectangle is increased by 25% and the width is decreased by 20% what is the change in the area of the rectangle
Answer:
60% decrease in area
Step-by-step explanation:
12 x5 == 60 sq feet (original area)
9 x 4 == 36 sq feet (new area)
36/60 = 6/10 = 60%
Which expression is equivalent to -x² + 5x + 94 = 13?
A.(x + 7)(x + 12) = 13
C.(x – 12)(x – 7) = 13
b. (x - 12)(x + 7) = 3
d. -(x - 7)(x + 12) = 3
In the diagram, MN is tangent to K at M, NP is tangent to K at P, MN = 128 and NP = 2x + 70. Find x
SHOW YOUR WORK
Answer:
A
Step-by-step explanation:
Tangents that are both tangent to a same point equal each other. sk
[tex]2x + 70 = 128[/tex]
[tex]2x = 58[/tex]
[tex]x = 29[/tex]