Answer:
24 g
Step-by-step explanation:
hello,
The big cube is compose by the 8 small cubes.
Because of the symmetry we can check what's happening to one of this small cube.
As Amanda has already painted the big cube it means that the same cube has 3 faces painted, so 3 faces are left unpainted. only 50 % is painted.
so Amanda need 24 grams to paint the unpainted surfaces of the 8 cubes.
hope this helps
Classify the following triangle. Check all that apply.
Answer:
Isosceles, obtuse triangle
Step-by-step explanation:
The triangle is isosceles since there are equal acute-angles which therefore prove two equal sides.
The triangle is obtuse because it consists of one obtuse angle which is 98 and is greater than 90 degrees.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
A soccer player gets 2 points for a goal and 1 point for an assist. If the combined number of goals and assists that a player has is 24, and the total number of points that the player has is 42, which system of equations can be used to determine the number of goals and assists the player has? Assume g represents the number of goals and a represents the number of assists.
A)g + a = 24. g + 2 a = 42.
B)g + a = 24. 2 g + a = 42.
C)g + a = 42. g + 2 a = 24.
D)g + a = 42. 2 g + a = 24.
Answer:
B
Step-by-step explanation:
The soccer player has g goals and a assists.
For every goal, he/she gets 2 points and for every assist, he/she earns 1 point. This means that if we multiply g by 2, we get the number of points the player receives from g goals and if we multiply a by 1, we get the number of points the player receives from a assists.
And, that total number of points is equal to 42, so we can write:
2 * g + 1 * a = 42
2g + a = 42
Now, we understand that g and a are the number of goals and assists the player has made, and we also know that the total number of such kicks is 24, so we can write:
g + a = 24
Thus, our system is:
g + a = 24
2g + a = 42
The answer is B.
~ an aesthetics lover
Answer:
The correct answer is B. g + a = 24. 2 g + a = 42
how do you calculate a length of a triangle
Answer:
Perimeter-width=Length
Hope this helps :)
Answer:
Area- A= b (base) times h (height) divided by 2
Perimeter- P= a+b+c
Step-by-step explanation:
Help me please 20 points!!!
Answer:
Step-by-step explanation:
7- 4!= 4*3*2*1=24
8- 10C3 = 10!/(3!*(10!-3!) = 120
9- 7 P3 =7!/(7-3)! = 210
simplify the expression (x - 2y) + (3x + 4y)
Simplifying the expression (x - 2y) + (3x + 4y).
Work:
(x - 2y) + (3x + 4y)
Combine like terms.
x + 3x = 4x
-2y + 4y = 2y
Reform the expression.
4x + 2y
Simplified Expression: 4x + 2y.
What is the period of the function y= 3/2 cot(3/5x) +5?
A. Pi/5 units
B. 3pi/5 units
C. 2pi/3
D. 5pi/3
Answer:
D; 5pi/3 units
Step-by-step explanation:
Here, we want to find the period of the function;
y = 3/2 cot (3/5x) + 5
By definition, the period of a function is the interval between two matching points in the function.
Let’s say it is the distance between two peaks, crests, etc on a function.
To find the value of the period. We shall standardize the function.
What this means is that we shall be writing the function in the standard form.
The standard form is as follows;
f(x) = A trig(Bx -C) + D
Where trig refers to the accompanying trigonometric function in question.
Comparing this standard form with our question, we can see that;
A is 3/2
B is 3/5
C is 0
D is 5
Now for cot and tan functions, we shall need to divide pi by the absolute value of B
Thus we have; pi divided by 3/5 which gives 5pi/3 units
Answer:
D. 5pi/3, period is the distance between the repetition of a function.
Step-by-step explanation:
Simplify. 192−−−√ 83√ 643√ 106√ 824−−√
Answer:
192 - 4√291341371
Step-by-step explanation:
If your question is: 192 - √83(√643)(√106)(√824) - √0
Then you multiply all the √s together and then subtract it from 192. √0 is 0, so you don't have to worry about that.
If your question is to simplify 192 in √ form, then the answer is none of the above. To find the √ form of 192, square it: 192² = 36864. So to simplify 192 in √ form, it would be √36864.
I NEED HELP PLEASE, THANKS! :)
Answer: tan(14x)
Step-by-step explanation:
Consider the Sum Formula for tan:
[tex]tan(A + B)=\dfrac{tan(A)+tan(B)}{1-tan(A)(tan(B)}\\\\\\tan(9x+5x)=\dfrac{tan(9x)+tan(5x)}{1-tan(9x)(tan(5x)}\\\\\\\large\boxed{tan(14x)}=\dfrac{tan(9x)+tan(5x)}{1-tan(9x)(tan(5x)}[/tex]
Answer:
[tex]\tan(4x)[/tex]
Step-by-Step Explanation:
Notice that this resembles the difference identity for tangent. Specifically:
[tex]\displaystyle \tan(\alpha-\beta)=\frac{\tan(\alpha)-\tan(\beta)}{1+\tan(\alpha)\tan(\beta)}[/tex]
So, given our equation, we can pretend that α=9x and β=5x. Therefore:
[tex]\displaystyle \frac{\tan(9x)-\tan(5x)}{1+\tan(9x)\tan(5x)}=\tan(9x-5x)=\tan(4x)[/tex]
PLEASE HELP QUICK!!!!!!!!! Given the equation x2 + 4x + c = 0, determine a value for c that gives the equation: a) Two real solutions and find its solutions. b) Complex solution(s) and find its solution(s). c) Exactly one real solution and find its solution.
Answer:
a. two (distinct) real solutions.
c = 3, x=¨{-1,-3}
b. two complex solutions
c = 17, x={-2+sqrt(13)i, -2-sqrt(13)i}
c. two coincident roots (i.e. one real solution)
c=4, x = {-2}, or x = {-2, -2}
Step-by-step explanation:
Given:
x^2+4x+c =0
a. two (distinct) real solutions.
c = 3
(x+1)(x+3) = 0
x=¨{-1,-3}
b. two complex solutions
c = 17
x^2+4x+17=0
does not have real factors.
x={-2+sqrt(13)i, -2-sqrt(13)i}
c. two coincident roots (i.e. one real solution)
c=4
x^2+4x+4=0 => (x+2)^2 = 0 => perfect square
x = {-2}, or x = {-2, -2}
Which relation defined by a graph is not a function?
Step-by-step explanation:Answer:a
Step-by-step explanation:horizonal line test can tell if it is a function or not.if we get more than one value of y for a value of x then it is not a function. In the option (a) we get +2and -2 for x=0
Can someone help me I really need help please help me thank you
Answer:60 degrees
Step-by-step explanation:
60 degress
43 + 167 + 90 = 300
360 - 300 = 60
<!> Brainliest is appreciated! <!>
HELP
Find the volume of the sphere in terms of Pi
Answer:
Hey there!
The volume of a sphere is 4/3pir^3
If d=5, then r=2.5,
Thus, we have 4/3(15.625)pi
20.83pi
The first choice is correct.
Hope this helps :)
Answer: num 1
Step-by-step explanation:
4/3*pi*r^3
4/3*pi*15.625
20.83*pi
hope i halped
can i get brainliest?(im trying to level up)
pls
-Zylynn
Which table represents a linear function
Answer:
The first photo
Step-by-step explanation:
Its a i think
Please help me I will give BRAINLIST and a like :))))
Answer:
18.75%
Step-by-step explanation:
Hello,
3 students are both female and senior
the total number of students is 7+10+8+5=30
so the probability to select one female senior is 3/30=1/10=0.10
probability to select one female is 16/30=16/30
probability that the student is a senior given that it's female is
=P(female and senior)/P(female)
=1/10*30/16=3/16
hope this helps
Answer:
19%
Step-by-step explanation:
Find the number of female students
3+4+6+3 = 16
P( senior given that it is female = senior/ female
= 3/16
=.1875
18.75%
To the nearest whole percent 19%
someone help with question number 3 asap
Answer:
Please check the attached file.
Hope this helps!
:)
Answer:
the side opposite to right angle is hypotenuse ,AB is side opposite to thita nd BC is the side adjacent to thita.
ann pays 300 for membership to a local gym. she is allowed to bring one guest on any visit. John pays Ann 5 to go to the gym with her occasionally. describe what the expression 300- 5t could represent. then evaluate the expression. t = 5,10,15, and 20
Answer:
The expression represents Ann's membership cost as a function of how many times she brings John along. For t = 5 the cost is 275, for t = 10, the cost is 250 and for t = 20 the cost is 200.
Step-by-step explanation:
The expression "300 - 5*t" represents the cost of Ann's membership plan on the local gym, where "t" is the number of visits John pays Ann. This means that the more times John goes to the gym with Ann, the less is her cost to pay the membership.
For t = 5:
[tex]cost = 300 - 5*t\\cost = 300 - 5*5 = 275[/tex]
For t = 10:
[tex]cost = 300 - 5*t\\cost = 300 - 5*10 = 250[/tex]
For t = 20:
[tex]cost = 300 - 5*t\\cost = 300 - 5*20 = 200[/tex]
What has to be broken before you use it?
Answer:
An egg has to be broken before you use it
please help me with quadratic graph
Answer:
Step-by-step explanation:
Given function is,
y = x² + 3x - 1
a). Table of values for the given equation will be,
x -4 -3 -2 -1 0 1
y 3 -1 -3 -3 -1 3
b). From the graph.
For minimum point of the graph is (-1.25, -3.25)
Therefore, minimum value of y = -3.25
c). Value of y when x = -3.5,
y = 0.75
d). Value of x when y = 3,
x = -4
a line has a gradient of 4 and passes through the post (1,7). what is the equation?
Answer:
y = 4x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 4, thus
y = 4x + c ← is the partial equation
To find c substitute (1, 7) into the partial equation
7 = 4 + c ⇒ c = 7 - 4 = 3
y = 4x + 3 ← equation of line
Answer:
The equation is y = 4x+3
Step-by-step explanation:
The slope intercept form of a line is
y = mx+b where m is the slope and b is the y intercept
y = 4x + b
Substitute the x and y value into the equation
7 = 4(1)+b
7 = 4+b
Subtract 4
7-4 =b
3=b
The equation is y = 4x+3
I really need help with this question, it's confusing. It's geometry btw
Answer:
Two regular nonagons and nine congruent rectangle
Step-by-step explanation:
Two regular nonegon=on the surface and base..
Nine congruent rectangle=look at beside it will be look like 9 rectangle.. I hope it will be right.
15 POINTS!!!!! suppose f(x)=x find the graph of f(x+2) please include what the graph would look like
Answer:
The graph f(x+2) would make the graph go left by 2 units.
Step-by-step explanation:
Using graph transformations, adding two would make the graph go left 2 and subtracting would make it go right 2
02.27.49
Which of these shapes have rectangular cross sections when they are cut perpendicular to the base? Select three
options.
rectangular prism
VX
triangular prism
cylinder
cone
square pyramid
triangular pyramid
Next
Submit
Mark this and return
Answer:
Rectangular prism, triangular prism, cylinder
Step-by-step explanation:
has base in the form of rectangle,so when cut perpendicular to base,the base as well as other faces, will be in the shape of Rectangle. Same for the triangular prism and cylinder.
Anyone I need help at this dont type other things. Pls now I need the solution anyone.
Answer:
see explanation
Step-by-step explanation:
(a)
Since there are 360° in the complete pie chart the 40° represents
360° ÷ 40° = 9 parts of the chart
Since 40° represents 7 cars then there are a total of
9 × 7 = 63 cars in the car park
(b)
The circumference (C) of a circle is calculated as
C = πd ( d is the diameter )
Given C = 28 , then
πd = 28 ( divide both sides by π )
d = [tex]\frac{28}{\pi }[/tex]
Anyone know this one?
Answer:
(-3, 5), (1, 4), (-2, 3), and (0, 2).
Step-by-step explanation:
When a function is inverted, the x-values become y-values, and the y-values become x-values.
The ordered pairs for the function are (5, -3), (4, 1), (3, -2), and (2, 0).
After inversion, the ordered pairs will be (-3, 5), (1, 4), (-2, 3), and (0, 2).
Hope this helps!
Can some one help me
Answer:
Step-by-step explanation:
divide 4 and 2 then add 2 and 1
Answer:
y = - 4x + 17
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (4, 1) and (x₂, y₂ ) = (2, 9)
m = [tex]\frac{9-1}{2-4}[/tex] = [tex]\frac{8}{-2}[/tex] = - 4, thus
y = - 4x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (4, 1) , then
1 = - 16 + c ⇒ c = 1 + 16 = 17
y = - 4x + 17 ← equation of line
Find the value of b. Round your answer to the nearest tenth.
The figure shows acute triangle A B C. The measure of angle B is 40 degrees. The length of side A B is 10. The length of side B C is 12. The length of side C A is b.
Answer:
Side CA = 7.8
Step-by-step explanation:
Given:
Acute angled [tex]\triangle ABC[/tex].
[tex]\angle B =40^\circ[/tex]
AB = 10
BC = 12
We can use cosine rule here to find the side AC = b
Formula for cosine rule:
[tex]cos B = \dfrac{a^{2}+c^{2}-b^{2}}{2ac}[/tex]
Where
a is the side opposite to [tex]\angle A[/tex]
b is the side opposite to [tex]\angle B[/tex]
c is the side opposite to [tex]\angle C[/tex]
[tex]cos 40 = \dfrac{12^{2}+10^{2}-b^{2}}{2\times 12\times 10}\\\Rightarrow cos 40 = \dfrac{144+100-b^{2}}{240}\\\Rightarrow 0.77 = \dfrac{244-b^{2}}{240}\\\Rightarrow 244-b^{2} = 0.77 \times 240\\\Rightarrow 244-b^{2} = 183.85\\\Rightarrow 244-183.85 = b^{2}\\\Rightarrow b^2 = 60.15\\\Rightarrow b = 7.76[/tex]
To the nearest tenth b = 7.8
Water is being pumped into a reservoir tank. The total amount of water (w) after an amount of time (t) is given by the equation w =100+55t . If the total amount of water that will fit in the tank is 540 gallons, how much time will it take to fill the tank
Answer:
it will take 8 minutes
Step-by-step explanation:
Here, we want to
calculate the amount of time taken to fill the tank given the total amount of water in the tank.
Mathematically, the formula go
use is ;
w= 100 + 55t
540 = 100 + 55t
55t = 540-100
55t = 440
t = 440/55
t = 8
What is the missing value in this table of equivalent ratios?
Answer:
A
Step-by-step explanation:
follow the pattern in its timetables,hope this helps u!
Solve for x 5 x + 2 = 7 x − 4 plz help me
Answer:
3
Step-by-step explanation:
5 x + 2 = 7 x − 4
7x-5x= 2+4
2x= 6
x= 3
Answer:
The value of x in this equation is 3.
Step-by-step explanation:
5x + 2 = 7x - 4
Subtract 7x from both sides of the equation.
-2x + 2 = -4
Subtract 2 from both sides of the equation.
-2x = -6
Divide by -2 on both sides of the equation.
x = 3
In this activity, you will use a variable to create expressions for various relationships. Then you will use these expressions to form a linear equation. Finally, you will find the solution to the equation. Theresa has two brothers, Paul and Steve, who are both the same height. Paul says he is inches shorter than times Theresa’s height. Steve says he is inches shorter than times Theresa’s height. If they are both right, how tall is Theresa? To solve a problem like this one, you can use a linear equation where the variable represents Theresa’s height in inches. Let represent Theresa’s height in inches. Question 1 The relationships for Paul’s and Steve’s height with respect to Theresa’s height are described above. First you will write expressions for Paul’s height and for Steve’s height. Then you will relate the expressions. Part B Write an expression to represent Steve’s height in inches.
Answer:
Step-by-step explanation:
Some information is missing. The correct question is:
Theresa has two brothers, Paul and Steve, who are both the same height. Paul says he is 16 inches shorter than 1 1/2 times Theresa's height. Steve says he's 6 inches shorter than 1 1/3 times Theresa's height. If they're both right, how tall is Theresa?
Solution:
Let p represent Paul's height
Let s represent Steve's height
Let t represent Theresa's height
Since Paul and Steve are both of the same height, it means that p = s
Paul says he is 16 inches shorter than 1 1/2 times Theresa's height. It means that
p = 1.5t - 16
Steve says he's 6 inches shorter than 1 1/3 times Theresa's height. It means that
s = 4t/3 - 6
Since p = s, then
p = 4t/3 - 6
Therefore, it means that
1.5t - 16 = 4t/3 - 6
Multiplying through by 3, it becomes
4.5t - 48 = 4t - 18
4.5t - 4t = - 18 + 48
0.5t = 30
t = 30/0.5 = 60 inches
Theresa's height is 60 inches
Answer:
Part A : The expression that represents Paul’s height in inches is
3/2 t - 16
Part B : The expression that represents Steve’s height in inches is
4t/3 - 6