Answer:
x = 20
Step-by-step explanation:
assuming if this was a triangle
3x + 4x +2x = 180
9x = 180
180/9 = 20
Answer:
20
Step-by-step explanation:
You know that the angle measurements in a triangle add up to 180 degrees.
using the equation 3x+4x+2x= 180, you can find x
Simplify:
9x=180
x=20
Your answer is B) x = 20
Hope this helps!
DVD players are going out of fashion in the modern era. If 400,000 DVD players were sold this year and sales are declining at a rate of 31% per year, how many will be sold 3 years from now?
130,000
131,404
128,000
399,876
Answer:
c
Step-by-step explanation:
Answer:
399,876
Step-by-step explanation:
So, 400,000 DVD sales with a 31% decline means in the first year following, there will be a decline of 124,000 DVDs sold. So we need to take 400,000-124,000 which equals a starting point for your two is 276,000 dvds. Then, add 123,876, which gives you 399,876.
Which of the statements about the x-axis are true?
1. The x-axis intersects the y-axis at the origin.
II. The x-axis is a vertical number line that passes through the origin.
III. The x-axis is the second coordinate in an ordered pair that describes the horizontal distance from the origin.
IV. The x-axis is a horizontal number line that passes through the origin.
A. I and II
B. IV only
C. lll only
D. I and IV
Reset
Submit
Answer:b
Step-by-step explanation:
Because b makes the most sense
Answer: D
Step-by-step explanation: II isn't it because the X-axis is the horizontal number line. III isn't it because the ordered pair is (x, y)
Hope this helps! :) Can you mark me brainliest?
will the answer to 3 × 6 be even or odd?
help please!
-x - (-15) + -3.5x + 15
Answer: -4.5x + 30
Step-by-step explanation:
Simplify.
-x- (-15) - 3.5x +15
Remove parentheses.
-x + 15 -3.5x + 15
Collect like terms.
(−x−3.5x)+(15+15)
Simplify.
-4.5x + 30
ANSWER ASAP PLS AND TY
4. At Lowell High School, the cost to attend special events depends on whether or not a student has
purchased a S10 discount card.
Option A: The student buys a discount card. The cost is $5 per event.
Option B: The student does not buy a discount card. The cost is $7.50 per event.
Graph the relationship between total cost and number of events for each option on the grid.
LABEL BOTH LINES!! (Option A/Option B)
a) Under what conditions is it best to buy a discount card?
b) Under what conditions is it best to not buy the discount card?
c) Are there any conditions where it doesn't matter!
|x+5|=3. Find all possible values for x (There are 2 possible values)
Answer:
x=-2 and x=-8
Step-by-step explanation:
(x+5)=3
Subtract 5 from both sides, to isolate x
x=-2
-(x+5)=3
Distribute the -
-x-5=3
Add 5 to both sides to isolate x
-x=8
Multiply both sides by -
x=-8
Hope this helps! Please mark brainliest :)
what is the volume of the square pyramid ?
A. 2530 cubic feet
B. 10,240 cubic feet
C. 11,605.3 cubic feet
D. 30,720 cubic feet
(50 points)
Answer:
D
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
The volume of a square pyramid is [tex]\frac{a^2h}{3}[/tex], where a is the base edge and h is the height. Substituting in these values we get 10240.
An in-ground swimming pool is meters long, meters wide, and meters deep. The water-resistant paint needed for the pool costs $ per square meter. Step by step.
1. How many sides of the pool do you have to paint?
2. How much paint (in square meters) do you need to paint the pool?
3. How much will it cost to paint the pool?
4. How much water will the pool hold?
Answer:
Step-by-step explanation:
I'm going to assume you meant to put numbers in the question, but I will answer in terms of x, y, and z, for length, width, and depth, respectively.
1. You need to pain 4 walls as well as the floor, so 5 surfaces total.
2. This question is asking for the surface area of the pool. There is 1 floor, 2 long walls and 2 wide walls.
Surface Area = 2 (wide) + 2 (long) + 1 (floor)
= 2(x*z) + 2(y*z) + 1(x*y)
*remember to answer in meters squared*
3. Total Cost = (surface area) * (cost per square meter)
*remember this is in dollars*
4. This question is asking about the volume of the pool:
Volume = x*y*z
Find the slope of this line: y=2x+7
Answer:
The slope is 2
Step-by-step explanation:
Y = mx+b y = mx+b is the shape of the slope-intercept where m is the slope.
Answer:
Slope = 2
Step-by-step explanation:
y=mx+b, in which m is the slope. Whatever number is paired with x is the slope.
State the 3 primary Trigonometrie Formulas and draw a well labelled triangle to help illustre, cely
indicating the unknown angle you are labelling the sides in reference to
Answer:
I think this is what you want:
Step-by-step explanation:
HELP ASAP WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER
Answer:
x = 13
48 = 5x - 17
+17 + 17
5x = 65
x = 13
A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of the spinner landing on yellow?
A. 2/25
B. 1/5
C. 1/4
D. 2/5
Answer:
b. 1/5
Step-by-step explanation:
10/50 = 1/5
Find the area of a circle with a diameter of 4.
Either enter an exact answer in terms of or use 3.14 for i and enter your answer as a decimal.
Answer:
12.57
Step-by-step explanation:
Show the Euler-Descartes formula holds for the Great Pyramid of Cheops
Answer:
For the great pyramid of Cheops, V + F = E + 2 gives 5 + 5 = 8 + 2 which proves Euler-Descartes formula
Step-by-step explanation:
The great pyramid of Cheops is a square based pyramid therefore we have;
V + F = E + 2
Where:
V = Vertices
F = Faces
E = Edges
Hence, we have for a square pyramid;
V = 5 vertices (One at the peak, and four at the base edges)
F = 5 faces (The four lateral or side faces and the base)
E = 8 edges ( The four lateral edges and the four base edges)
Hence;
5 + 5 = 8 + 2 which proves Euler-Descartes formula.
plz help it is urgent edge
Answer:
1,3,4
Step-by-step explanation:
Answer:
1 3 4 on edge 2022-2023
Step-by-step explanation:
hoped this helped
have a good day
Solve the following equation:
12(b+2)+3b=−1
Enter your answer as a fraction.
Answer: -5/3
Step-by-step explanation:
12(b + 2) + 3b = -1
12b + 24 + 3b = -1
15b + 24 = -1
15b = -1-24
b = -25/15 = -5/3
The solution to the equation 12(b+2) + 3b = -1 is b = -5/3.
What is the solution to the given equation?Given the equation in the question:
12( b + 2 ) + 3b = -1
To solve the equation 12( b + 2 ) + 3b = -1, first apply the distributive property.
Distribute the 12 across the terms inside the parentheses:
12( b + 2 ) + 3b = -1
12×b + 12×2 + 3b = -1
Simplifying, we get:
12b + 24 + 3b = -1
Collect and combine the like terms on the left side of the equation:
12b + 3b + 24 = -1
15b + 24 = -1
Subtract 24 from both sides of the equation:
15b + 24 - 24 = -1 - 24
15b = -1 - 24
15b = -25
Divide both sides by 15:
b = -25/15
Simplify
b = -5/3
Therefore, the value of b is -5/3.
Learn more about equations here: brainly.com/question/14686792
#SPJ2
Which function has a domain of x>3?
Answer:
The answer is C
Step-by-step explanation:
Answer:
Step-by-step explanation:
Function (c) has a domain of x ≥ 3. (Your " >3" does not match the problem statement.)
Justification: for x ≥ 3, the quantity under the radical sign is ≥ 0, as it must be.
What is the twentieth term of the arithmetic sequence described by the
equation an= 3n - 10?
Answer:
The twentieth term is 50.
Step-by-step explanation:
The equation that describes the arithmetic sequence describes it's "general term", which means that all the numbers in that sequence must follow that equation. For instance, if we want to find the first term of the sequence we must make a = 1 and we have:
a1 = 3*1 - 10
a1 = -7
Therefore to find the twentieth term we need to make n equal to 20. This is done below:
a20 = 3*20 - 10
a20 = 60 - 10
a20 = 50
The twentieth term is 50.
Which term can be added to the list so that the greatest common factor of the three terms is 12h3? 36h3, 12h6, __________
Answer:
36h6
Step-by-step explanation:
Answer:
48h^5
Step-by-step explanation:
what is the graph of f(x)=3(2/3)^x
Answer:
attached
Step-by-step explanation:
The required graph has been attached below which represents the given exponential function f(x) = 3(2/3)ˣ.
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
It is a relation of the form y = aˣ in mathematics, where x is the independent variable
The exponential function is given in the question, as follows:
f(x) = 3(2/3)ˣ
As per the given function, the y-intercept is (0, 3) which is shown in the attached figure.
Hence, the required graph has been attached below which represents the given exponential function.
Learn more about exponential function here:
brainly.com/question/11487261
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What is the solution to Negative 1 minus 7? A number line going from negative 10 to positive 10. –8 –6 6 8
Answer:
-8
Step-by-step explanation:
plug it into a calculator. its taking 7 away from an already negative number.
Answer:
-8 correct me if im wrong
Step-by-step explanation:
Solve 2x2 + x - 6 = 0
{-3/2, 2)
{-2, 3/2)
Answer:
-24
Step-by-step explanation:
What’s the answer???
And please explain
Answer:
35 square units
Step-by-step explanation:
[tex]area \: of \: { \parallel}^{gm} = b \times h \\ = 7 \times 5 \\ = 35 \: {units}^{2} [/tex]
Help me please and fast no photo math please already tried that
Steps to solve:
[tex]\frac{3x}{x^2+5x-14} -\frac{6}{x^2+5x-14}[/tex]
~Apply rule [ a/c ± b/c = a±b/c ]
[tex]\frac{3x-6}{x^2+5x-14}[/tex]
~Factor out [ 3 ]
[tex]\frac{3(x-2)}{x^2+5x-14}[/tex]
~Factor out [ x^2 + 5x - 14 ]
[tex]\frac{3(x-2)}{(x-2)(x+7)}[/tex]
~Cancel common factor [ x - 2 ]
[tex]\frac{3}{x+7}[/tex]
The answers are Options 1, 2, and 3
Best of Luck!
Math question down below
Answer:
6 and 3/4
Step-by-step explanation:
add all of the ones before 2 1/2
12. Use the graph of f(x) to find the solutions to the equation f(x)=0 (1 point)
two solutions: r= -10,2
two solutions: x = 10.-2
one solution: x= 10
no solutions
In North Carolina, the Tar River is 346 miles long. The Neuse River is 275 miles long. How much longer is the Tar River than the Neuse River?
Answer:
71
Step-by-step explanation:
You subtract both numbers.
Answer:
71 miles longer
Step-by-step explanation:
Subtract 275 from 346
Calculate the volume of the figure. Use 3.14 for π.
Enter your answer as the number of m3, rounded to the nearest hundredth if necessary, like this: 42.53
Answer:
[tex]586.13\,\,m^3[/tex]
Step-by-step explanation:
Given: Figure
To find: Volume of the figure
Solution:
The given figure is composed of two shapes:cylinder and hemisphere
Radius of cylinder = 4 m
Height of cylinder = 9 m
Volume of cylinder = [tex]\pi (radius)^2height=\pi (4)^2(9)=3.14(16)(9)=452.16\,\,m^3[/tex]
Volume of hemisphere = [tex]\frac{2}{3}\pi (radius)^3=\frac{2}{3}(3.14)(4)^3= \frac{2}{3}(3.14)(64)=133.9733\,\,m^3[/tex]
So,
total volume of the figure = Volume of cylinder + Volume of hemisphere = 452.16 + 133.97 =586.1333 [tex]m^3[/tex]
If 586.1333 is rounded to the nearest hundredth, it becomes 586.13 [tex]m^3[/tex]
Answer:
586.13 is the answer
Step-by-step explanation:
Can I please get help with this?
Answer: x = 20.
Step-by-step explanation:
x and (3x + 10) combine to form a right angle, shown in the diagram by the small square joining the perpendicular lines.
Right angles are 90 degrees, so you can add both angles to get 90:
[tex]x + (3x + 10) = 90\\\\4x + 10 = 90\\\\4x = 80\\\\x = 20[/tex]
Math question down below
Answer:
B
Step-by-step explanation:
