Answer:
w = -6
Step-by-step explanation:
2w + 6 = -6
-6 -6
2w = -12
÷2 ÷2
w = -6
Answer:
Step-by-step explanation:
w - 6 = 2w + 6
Subtract 6 from both sides
w - 12 = 2w
subtract 1w, or w, from both sides
-12 = w
i need help with this please mathematics
What is the slope of the line 6,3 and 3,2
y = x2+x-30
what are the factors
Answer:
2 and x are the factors of 2
Step-by-step explanation:
An isotope of iodine has a mass of 134 amu. How many neutrons does the
isotope contain?
A. 67
B.153
C. 81
D. 74
Answer:
The correct option is C: the isotope of iodine contains 81 neutrons.
Step-by-step explanation:
The mass (A) of the iodine isotope is given by:
[tex]A = Z + N[/tex]
Where:
Z: is the number of protons
N: is the number of neutrons
For iodine Z= 53, so if A = 134 the number of neutrons is:
[tex] N = A - Z = 134 - 53 = 81 [/tex]
Therefore, the correct option is C. The isotope of iodine contains 81 neutrons.
I hope it helps you!
Find the value of side b. Show what equation you used, what values you plugged
into the equation, your work, and the answer.
Answer:
If it's hypotenuse for the side angle I think the answer is 25
Step-by-step explanation:
[tex]\sqrt[n]{15^{2} + 20^2} = 25 If you're doing hypotenuse[/tex]
What is the purpose of a regression line?
to connect all the points in a scatterplot
to show the general tendency of the points in a scatterplot
to provide a scale for the x-coordinates of the points in a scatterplot
to provide a scale for the y-coordinates of the points in a scatterplot
Answer:
B). to show the general tendency of the points in a scatterplot
Step-by-step explanation:
The purpose of a regression line is to show the general tendency of the points in a scatterplot option (B) is correct.
What is a regression line?A regression line is a graph that illustrates the pattern of a group of statistics. In other words, it shows the data's best pattern.
It is given that:
The regression line is a line of best fit.
From the definition of the regression line, line is a graph that illustrates the pattern of a group of statistics and to show the general tendency of the points in a scatterplot.
Thus, the purpose of a regression line is to show the general tendency of the points in a scatterplot option (B) is correct.
Learn more about the regression line here:
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HELP I HAVE 10 MINUTES!!
-109+9x=86-4x
Answer:
x=15
Step-by-step explanation:
[tex]-109+9x=86-4x\\ +109+4x=+109+4x\\13x=195\\x=15[/tex]
add 109 to both sides and add 4x to other sides
divide 13 by 195
Dan eats of a pizza.
2
Rachel eats another of the pizza.
What fraction of the pizza was eaten?
the answer is 3/5 on slime
ANSWER THIS PLSSSS ASAPPPPP
Answer:
3rd choice (1, -6)
Step-by-step explanation:
−3(4 – 3x) = 5x + 16 what is x?
Answer:
x = 7 (i think..)
Step-by-step explanation:
-3 (4 - 3x) = 5x + 16
* multiple -3 to each number in the parenthesis
-12 + 9x = 5x + 16
* add 12 to both sides to cancel it and combine like terms on the other side
9x = 5x + 28
* subtract 5x from both sides to cancel it out and combine like terms
4x = 28
* divide 4 from both sides to get x alone
x = 7
Stephanie has the same number of dimes and nickels. She has $6.10 in all. Write an equation that you could use to find the number of dimes and nickels Stephanie has.
Answer:
The equation is
15x = 610
Step-by-step explanation:
A dime is 10 cents while a nickel is 5 cents
$6.10 is same as 610 cents
Let the number of dimes and number of nickels be x
10x + 5x = 610
15x = 610
In 2006, there were 72 million dogs in U.S. Homes. In 2010, there were 70 million dogs. What was the percent decrease in the number of dogs in U.S. Homes from 2006 to 2010? A. about 0.03% B. about 0.97% C. about 3% D. about 97% Speed: NormalVoice: Female Volume: 70%
Answer: C. about 3%
Step-by-step explanation:
In 2006 , Number of dogs in U.S. dogs = 72 million
In 2010, Number of dogs in U.S. dogs = 70 million
The percent decrease in the number of dogs in U.S. Homes from 2006 to 2010 =
[tex]\dfrac{\text{Change in number of dogs}}{\text{Number of dogs in 2006}}\times100\%\\\\=\dfrac{(72-70)\text{ million}}{70\text{ million}}\times100\%\\\\=\dfrac{2}{7}\times10\%\approx3\%[/tex]
So, the percent decrease in the number of dogs in U.S. Homes from 2006 to 2010 was about 3%.
Hence, the correct option is C. about 3%
Given f(x) = 17(3+x) what is the value of f(-2)
Answer:
Step-by-step explanation:
f ( x ) = 17 ( 3 + x )
f ( -2 ) = 17 ( 3 + -2 )
f ( -2 ) = 51 + -34
f ( -2 ) = 17
= 17
2 1/3 + 3 2/4 =
Fractions
Step-by-step explanation:
2 1/3+3 2/4=7/3+14/4
=28/12+42/12 (common denominater)
=70/12
=5 10/12
[tex]5x+3\ \textless \ 16[/tex]
What is 6/7 x 8-/9 hi ok pls help
Answer:
48/63
Step-by-step explanation:
16/21 in fraction form
Answer:
-16/21
Step-by-step explanation:
Multiply the numerators together then the denominators. (-48/63)
Reduce Divide each side by 3 (-16/21)
The graph shows the proportions of red and blue food coloring that Taylor mixes to make the purple frosting. What is the slope of the line? Tell what it means in the problem situation. The graph is ( 50, 70 ) ( 25, 35 )
Answer:
The slope is 7/5
Step-by-step explanation:
Here, we want to find the slope of the line
We use the slope equation
m = (y2-y1)/(x2-x1)
m = (35-70)/(25-50) = -35/-25 = 7/5
what it means is that the rate of change of the number of red drops to number of blue drops to form the purple color is in the ratio of 7 to 5
Or simply put
To form a purple color, add 7 part red to 5 parts blue drops
I’ll give the Brainliest to who answers this question with a reasonable explanation.
What is the ratio of circumference to diameter for the circle with a 7.2 cm circumference?
A) 22.61 cm/7.2 cm
B) 20.10 cm/7.2 cm
C) 7.2 cm/20.10 cm
D) 7.2 cm/22.61 cm
Thank you!
Answer:
I
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
So it’s asking for the ratio for a diameter of 7.2 so if you look at the table 22.61 is the one next to it. So it’s A because it says circumference to diameter not diameter to circumference
9) State the coordinates of the endpoints of a
line segment that intersects the y-axis.
Answer:
(5,4) and (3,4)
Step-by-step explanation:
A line segment has 2 end points which can be denoted as:
[tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
When this line segment intersects at y.
This means that the coordinate on the y axis is the same at both end points
i.e.
[tex]y_1 = y_2 = y[/tex]
[tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] becomes [tex](x_1,y)[/tex] and [tex](x_2,y)[/tex]
x1 and x2 can be any value but the y value must remain unchanged
Using the above analysis, a possible coordinate is:
[tex](5,4)[/tex] and [tex](3,4)[/tex]
Note that there are as many answers as possible as long as the coordinate pair satisfy is of the form [tex](x_1,y)[/tex] and [tex](x_2,y)[/tex]
Take for instance, another possible pair is:
[tex](1,-3)[/tex] and [tex](0,-3)[/tex]
a circle has a circumference of 54π cm what is the radius?
Answer:
circumfrence = 108
Step-by-step explanation:
Radius = half the circumfrence
radius * 2 = circum.
54*2 = 108
108 = circum
A bakery delivers a total of 2176 cookies equally to 8 coffee shops daily. How many cookies does the bakery deliver to each coffee shop in one week
Answer:
1904 cookies
Step-by-step explanation:
2176/8=272
272 is how many cookies a shop gets a day
272x7=1904
Hope this helps
A boat travels with velocity vector (25, 25 StartRoot 3 EndRoot). What is the directional bearing of the boat? N 30° E E 30° S E 30° N N 30° W
Answer:
The directional bearing of the boat is N 30º E
Step-by-step explanation:
Let [tex]\vec v = (25, 25\sqrt{3})[/tex], where [tex]\vec v[/tex] is the vector velocity. Given that such vector is represented in rectangular, a positive value in the first component is the value of the vector in the east direction, whereas a positive value in the second component is in the north direction. The directional bearing of the boat ([tex]\theta[/tex]), measured in sexagesimal degrees, is determined by trigonometrical means:
[tex]\theta = \tan^{-1}\frac{v_{y}}{v_{x}}[/tex] (1)
If we know that [tex]v_{x} = 25[/tex] and [tex]v_{y} = 25\sqrt{3}[/tex], then the directional bearing of the boat is:
[tex]\theta = \tan^{-1} \sqrt{3}[/tex]
[tex]\theta = 60^{\circ}[/tex]
In consequence, we conclude that the direction bearing of the boat is 30 degrees to the East from the North (N 30º E).
Answer:
A) N 30 E
Step-by-step explanation:
A bag contains 6 red marbles, 7 white marbles, and 8 blue marbles. Find P(Green)
Answer:
Is there a picture or choices?
Step-by-step explanation:
what is the cost per ounce for 10 ounce package of cashews
Answer:
you have to give more explanation as right now the equation is unsolvable
Step-by-step explanation:
0.8 as a percentage?
Answer:
0.8 = 80%
Details:
To write a number as a percetage, just multiply the decimal value by 100. In this case we have: 0.8 × 100 = 80% (answer).
➥ The ease way:
1) Shift the decimal point two places to the right:
0.8 → 8 → 80.
2) Add a percent sign: 80%
Answer: 80%
Answer:
8% sorry if I'm wrong but I'm pretty sure
Use the graph to determine the input values that
correspond with f(x) = 1.
Ox=4
O x = 1 and x = 4
O x= -7 and x = 4
O x = -7 and x = 2
Answer: x = -7 and x = 2
(x,y)
look at the 2 that y=1
Using the graph the input values that correspond with f(x) = 1 is x = -7 and x = 2.
What is graph?A graph is a visual representation of data or information, often used to show the relationship between variables.
The given graph is of a function f(x) which is shown on the y-axis. The horizontal line at y = 1 is also shown on the graph.
To find the input values that correspond with f(x) = 1, we need to look for the points where the function f(x) intersects with the horizontal line y = 1.
From the graph, we can see that there are two such points:
One point is where the function intersects the line at x = -7. At this point, f(x) = 1, since the function value is equal to the y-coordinate of the intersection point.
The other point is where the function intersects the line at x = 2. At this point, f(x) = 1 as well.
Therefore, the input values that correspond with f(x) = 1 are x = -7 and x = 2. So the answer is "x = -7 and x = 2".
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20 points hurry plz due in 1 hr
Answer:
2*2*2*3*3*5*7 is the answer
or B
Step-by-step explanation:
Answer:
answer 2
Step-by-step explanation:
Juanita constructed a number line to test her brother's understanding of opposites. She tested him on all points that were labeled with letters. Her brother had trouble representing the opposite of point A. A number line going from negative 20 to positive 20 in increments of 5. The points are: negative 20, blank, A, B, 0, 5, C, blank, D. Which represents the opposite of Point A? Negative (negative 10) Negative (negative 5) 0 Negative (10)
Answer: Negative (negative 10)
Step-by-step explanation:
Given that:
- 20, blank, A, B, 0, 5, C, blank, D in Increment of 5
-20, - 15, - 10, - 5, 0, 5, 10, 15, 20
The point A on the number line is - 10 ;
The opposite of point A : will be
- (point A) = - (-10)
The opposite of point A should be (10) which is the equivalent point to the right of the number line and can be represented as - (-10)
Answer:
-(-10)
Step-by-step explanation:
the other person is correct
edge 2020/2021
What is the slope of this graph?
A. -1/4
B. 1/4
C. -4
D. 4
Answer:
-4
Step-by-step explanation:
its negative because it is decreasing from left to right and 4 because it goes down 4 over one not down one over four
Answer: B : -1/4
Step-by-step explanation: The line is going down to the right which is a negitive slope. So that takes out the options B and C. Then to find the slope you find a point and go over one down four, therefour -1/4. Hope This Helps!
What is the equation of the line shown in the graph?
Answer:
y=4x-3
Step-by-step explanation:
We're given that the equation is linear (a line), so it must be in the form y=mx+b. We're also given that it contains the points (0,-3) and (1,1).
Plugging the values of the x and y coordinates in that first point, we get the equation -3=m*0+b, simplifying to -3=b. Therefore, the b-value is -3.
Next, we can plug in the values from the second point to get the equation 1=m*1-3, which simplifies to 1=m-3. Adding 3 to both sides, we get m=4. Therefore, the equation of the line is y=4x-3.
Note that -3 is the value where the line intercepts the y-axis, which means -3 is known as the y-intercept. The value of b is always the y-intercept.