Answer:
x =-4
Step-by-step explanation:
3x − 7 = −19
Add 7 to each side
3x − 7+7 = −19+7
3x = -12
Divide by 3
3x/3 = -12/3
x =-4
Consider the sequence 8, 6.2 ,4.4 , 2.6 . The function that describes the sequence is f (x) = 9.8 - 1.8x . What is f (5)
Answer:
0.8
Step-by-step explanation:
f (5) = 9.8 - 1.8(5)
9.8 - 9 = 0.8
y - 7.3 = 2(x - 8.8) slope =
Answer:
Step-by-step explanation:
The voltage V required for a circuit is given by [tex]v=\sqrt{PR}[/tex] , where P is the power in watts and R is the resistance in ohms.
How many more volts are needed to light a 100-watt light bulb than a 75-watt light bulb if the resistance of both is 110 ohms? Round answer to the nearest tenth.
Answer:
✓11000-✓8250=~ 14 volts
Step-by-step explanation:
the answer is the difference by 100-watt light bulb to a 75 light bulb.
so, all you have to do is this:
v1-v2--------> ✓PR-✓P2R2
so you'll have ✓100.110-✓75.110= ✓11000-✓8250= 14
I hope it helps
)
The rate for a 2-year subscription to a magazine is $5.99 a month. The rate for a 3-year subscription to the same
magazine is $4.00 a month. The daily newspaper costs $1.50 a day. What is the total amount of money you will pay
if you order a 3-year subscription to the magazine?
You will pay $
.00 to order a 3-year subscription to the magazine.
Answer: You will pay 144 to order a 3 year subscription to the magazine.
Step-by-step explanation:
Evaluate
3/4•1/2
A.3/8
B.4/6
C.2/12
D.1/6
Answer: (A) 3/8
Step-by-step explanation:
3/4*1/2
3/4*2
= 3/8
Answer:
The correct answer is A.3/8
Step-by-step explanation:
According to the PEMDAS operations (parentheses, exponents, multiplication, division, addition, and subtraction) you must do multiplication before division. In order to do that we must change the equation to look like this: 3 x 1 / 4 x 2. Which would give you your answer of 3/8.
Hope it helps!
What are the x and y-intercepts of the line described by the equation? -6x + 3y = 12
Answer:
(-2,0) (0,4)
Step-by-step explanation:
How does a reflection across the y-axis change the coordinates of a shape?
Can someone hep me on this
A bag of potato chips contains 0.96 grams of sodium. If the bag is split into 8 equal servings, how many grams of sodium will each serving contain? Extension: What other ways can the bag be divided into equal servings so that the amount of sodium in each serving has two digits to the right of the decimal and the digits are greater than zero in the tenths and hundredths place?
Answer:
.12g of Na
Step-by-step explanation:
Rewrite each geometry formula using function notation. Use the same variables as the formula in your function. Evaluate each function when r=5 feet. Do not round; write answers in terms of pi, if necessary. Explain the meaning of the result.
a. Diameter, d=2r
The formula using function notation is _______; The value when r=5 is _______; The diameter of the circle is ______ feet when the radius is ________ feet.
b. Area, A=pi x r^2
The formula using function notation is _______; The value when r=5 is _______; The area of the circle is ______ feet when the radius is ________ feet.
c. Circumference C=2 x pi r
The formula using function notation is _______; The value when r=5 is _______; The Circumference of the circle is ______ feet when the radius is ________ feet.
Answer:
A) d(r) = 2r
Value when r = 5 is 10 ft.
diameter is 10 ft when the radius is 5ft
B) A(r) = πr²
Value when r = 5 is 25π ft²
Area is 25π ft² when radius is 5 feet
C) C(r) = 2πr
Value when r = 5 is 10π
Circumference is 10π when radius is 5 feet
Step-by-step explanation:
A) Using function notation, since d = 2r
d(r) = 2r
d(5) = 2(5)
d(5) = 10 feet
This means that the diameter is 10 ft when the radius is 5ft
B) Area = πr²
In function notation, its;
A(r) = πr²
When radius is 5 feet,
Area is; A(5) = π(5²) = 25π
It means Area is 25π ft² when radius is 5 feet
C) Circumference is 2πr
In function notation, it's;
C(r) = 2πr
When r = 5 feet,
Circumference is;
C(5) = 2π(5)
C(5) = 10π
What is the multiplicative inverse of 4 5/19
Answer:
The answer is 4 and 5 ii think Step-by-step explanation:
What is an equation of the line that passes through the point (2,-5) and is parallel
to the line 6x +y = 6?
Answer:
y = − 6 x + 7
Step-by-step explanation:
Find the slope of the original line and use the point-slope formula
PleEASSSE HELP ME WITH K AND L
The graph shows the amount of money paid when purchasing bags of peanuts at the zoo:
A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. The four points shown on the graph are ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars.
Write an equation to represent the relationship between the total cost (y) and the number of bags of peanuts (x).
y = 4x
y = one-fourth x
y = 3x
y = one-third x
Answer:
dive the cost by the number of bags for each dot:
4 / 1 = 4
8 / 2 = 4
12 / 3 = 4
This means each bag cost $4
The equation would be Y = 4X, because you would multiply each bag bought (X) by $4 to get the total cost (Y).
Step-by-step explanation:
BRAINLYIS TPLS
I need help fast!!
Which expressions have a value of 19 1/4
choose all that apply
A.77 ÷ 4
B. 231 ÷ 12
C. 151 ÷ 8
D. 315 ÷ 16
E. 298 ÷ 15
F. 385 ÷ 20
Answer:
A:77 divided by 4
Step-by-step explanation:
77 divided by 4 = 19.25 and 19.25=19 1/4
A function f(x) is graphed on the coordinate plane.
What is the function rule in slope-intercept form?
Enter your answer in the box.
Answer:
y = -4x - 2
Step-by-step explanation:
y-intercept: -2
Slope: -4
Which function h(x) results when g(x) is translated IT
units right and 1 unit down?
Answer:
b on edge
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Got it right on Edge
Solve 24x + 2y = 48 for y.
Answer:
y = 24 - 12x
Step-by-step explanation:
24x + 2y = 48
Get 2y by itself and subtract 24 x on both sides.
24x + 2y = 48
-24x -24x
2y = 48 - 24x
To have y all by itself, divide by 2 on both sides.
2y = 48 - 24x
/2 /2
(You have to divide 2 by everything on the other side so...)
y = 24 - 12x
Hopefully this helped you out...have a great day c:
The midpoint of AB is M(4,1). If the coordinates of A are (2,8), what are the
coordinates of B?
Answer:
(6,-6)
Step-by-step explanation:
2 to 4 is + 2 so 4+2 is 6 for X
8 to 1 is -7 so 1-7 is -6 for Y
is 3.66227766017 rational or irrational?
Answer:
I think it's irrational (viewpoint)
Hi! I’m super confused on the second page but for the first page I only need help on #11. Could you please let me know if the problems I did answer on the first page are correct?
Answer:
So ummmm..... I personally think that all of your answers on the first page should be flipped.
Second page:
#9: domain= [0,6] range=[-6,6]
#10: Domain= (-infinity, infinity) range: (-infinity, infinity)
#11: Domain= (-infinity, infinity) range: [-2, infinity)
Thats all I have time for
(Write infinity as the sideways 8)
A function is a relationship between input values and output values such that each input has exactly one output
The correct values are;
First page
11. A skateboarder motion
Second page
9. The square is not a function
10. Domain; -∞ < x < ∞
Range; -∞ < x < ∞
11. Domain of the graph is; -∞ < x < ∞
Range is; 2 ≤ y < ∞
12. A circle is not a function
13. Domain is; -∞ < x < ∞
Range; -2 ≤ y ≤ 4
14. Domain; -∞ < x < ∞
Range; y = 2
15. The relationship is a function
16. The relationship is not a function
17. The relationship is not a function
18.The given relationship is not a function
19. The relationship is a function
20. The relationship is not a function
21. The relationship is a function
22. The relationship is not a function
Reason:
First page;
11. The given graph can be described by the following real life situation;
A skateboarder rides up hill using an initial speed which is reduced at a constant rate by gravity. At the top of the hill, the skateboarder continues at a constant low speed and then drives down the hill, with her speed constantly being increased by gravitySecond page;
The domain and range of a
The domain of a function is set values of the input to the function where the function is defined
The range of a function are is the set of the output values of the function
9. The given figure of a square is not a function
10. The graph extends to infinity towards the top right, and the bottom left
The domain of the function is; -∞ < x < ∞The range of the function is; -∞ < x < ∞11. The graph of the function extends infinity at the top left and top right
Therefore, the domain of the graph is; -∞ < x < ∞The graph has a minimum at y = 2, while it extends to infinity as the y-values increases, therefore;
The range is; 2 ≤ y < ∞12. The graph of a circle is not a function
13. The end behavior of the graph is as follows;
The graph is repeating and extending to infinity at the left and right ends
Therefore;
The domain is; -∞ < x < ∞The maximum y-value is y = 4, the minimum y-value is y = -2, therefore;
The range of the function is; -2 ≤ y ≤ 414. The graph of the function is an horizontal line, y = 1, extending to infinity to the left and right, therefore;
Therefore;
The domain of the graph is; -∞ < x < ∞The range of the graph is; y = 215. The given data are; {(-2, 6), (2, 0), (3, 0), (4, -1), (5, 3)}
In the given data, each value of the input has exactly one output, given that the x-values of the data are not repeatingThe relationship is a function
16. The given data values are presented as follows;
{(-3, 2), (-2, 2), (1, 2), (-3, 1), (0, 3)}
The given data has two x-values, (-3) which are have the same y-value, (2, and 1), therefore, the given data does not represent a functionThe relationship is not a function
17. The given data are presented as follows;
[tex]\begin{array}{|c|cc|}\mathbf{x}&&\mathbf{y}\\-2&&-3\\-1&&0\\5&&5\\4&&3\\-1&&7\end{array}\right][/tex]
The x-value, -1, has two different outputs, 0, and 7, therefore, the data is not a function
The relationship is not a function
18. In the given data, the x-value, 6, has two y-values, 3 and 5, therefore, the given relationship is not a function
19. The given graph is a function because each vertical line drawn from the horizontal axis, crosses the data points only once
The relationship is a function
20. The given graph is not a function because each vertical line crosses the graph only once
The relationship is not a function
21. The graph of is a function because each vertical line drawn from the horizontal axis crosses the graph at one point only
The relationship is a function
22. The graph is not a function because it has several points on the side that is vertical to the y-axis
Learn more about functions here:
https://brainly.com/question/18142260
https://brainly.com/question/17299449
At a football stadium, 2% of the fans in attendance were teenagers. If there
were 350 teenagers at the football stadium, what was the total number of
people at the stadium?
Answer:
17500
Step-by-step explanation:
350/2%
Answer:
17500
Step-by-step explanation:
look at the awenser above me and believe him
write and algebraic expression for nine times of the square of a number
Answer:
9• x2
Step-by-step explanation:
Well you have 9 and then you times(•) then X is the number we don’t know. Then x would be squared(like the image below).
Plz Help and Thank you :/
Answer:
I believe c is correct
he microsphere nanoscope is a powerful tool that allows humans to see structures 9 × 10–9 meter in diameter.
How is this number expressed in standard form?
Pls help we just started today
Answer:
5.4
Step-by-step explanation:
using pythagoras theorem
a²+b²=c²
5²+2²=c²
c²= 25+4
c²=29
[tex] \sqrt{c ^{2} } = \sqrt{29} [/tex]
c=5.4
9a = b^3 + 4H
How do you solve for a
Ok, to solve for (a) you need to get it alone. So divide 9 by all.
9a/9 = b^3/9 + 4H/9
Then your left with your equation, which is
a = b^3/9 + 4H/9
Hope this helps, if so please mark brainliest.
work out the value of 2 ^ 0
Answer:
Anything to the 0 power is 1
Step-by-step explanation:
Answer:
2^0=1
Step-by-step explanation:
58 (6x+2)
Find the value x
Directions: Multiply, divide, and simplify the following exponential expressions.
Pls help
