Answer:
Try asking again
Step-by-step explanation:
Cora is wrapping her sister's birthday present. She needs to cut a 47-centimeter piece of ribbon into 5 equal parts. How long will each part be?
Answer:
Step-by-step explanation:
If its fractions, you would do 5/47
Answers to 10 11 and 12 with explanations
Answer:
9. you did that right.
10.
A. x=4
B. (4,4)
C. (-∞,-∞)
11. you did not do it right and I will screenshot the answer.
Step-by-step explanation:
a graphing calculator helps a bunch with these types of problems. if you dont have one use demos an online graphing calculator.
9514 1404 393
Answer:
10. see attached
11. axis of symmetry: x=4; vertex: (4, 4); domain: all real numbers; range: y ≤ 4
12. x = -4, -2
Step-by-step explanation:
10. Your graph is substantially correct. (You might do yourself a favor by adding points ±1 either side of the vertex. This will help to make the graph more rounded near the bottom.) The red graph in the attachment is the graph of this function.
__
11. The vertex form of this equation is ...
f(x) = -(x² -8x) -12 = -(x² -8x +16) -12 +16
f(x) = -(x -4)² +4
This tells you the vertex is (4, 4). The axis of symmetry is the vertical line through the vertex, so is x=4. The domain of all polynomial functions is "all real numbers." This has a maximum at y=4, so the range is y ≤ 4.
__
12. The vertex form of this equation is ...
f(x) = (x +3)² -1
so the vertex is (-3, -1). Points at x = -3 ± 1 will be the x-intercepts, so the solutions to the equation f(x) = 0. The graph of it is the green graph in the attachment.
A company would like to advertise that their new fishing line has an average breaking strength greater than 15 kilograms. The lines breaking strength is known to vary in the population on average 2.8 kilograms. To test the breaking strength of their new product the company takes a random sample of 50 lines, the average strength measure is 16.1 kilograms. What type of procedure should they use to test whether there evidence that the average strength of the new fishing line is greater than 15 kilogram.
Answer:
A right-tailed test should be used to test whether there evidence that the average strength of the new fishing line is greater than 15 kilogram.
Step-by-step explanation:
Type of procedure:
We want to test if the breaking strength is greater than a value, which means that the type of procedure used to solve this question is a right-tailed test, which is when we find the probability of having a mean higher than the sample mean found.
Other types of procedures:
Not related to this question speficially, but to similar problems.
To test if a measure is less than another measure, the procedure used is a left-tailed test.
To test if a measure is different from another measure, the procedure used is a two-tailed test.
dressed like me walk talk and act like me just might be the next best thing but not quite me
Answer:
Okay..
Step-by-step explanation:
Your are cunfoosing, help meh understand what ur sayin
Divide using common factors.
(x - 9) ÷ x^2 – 81
Answer: Hello Luv.......
Factor the numerator and denominator and cancel the common factors.
−(81−1x+9x2)
Step-by-step explanation:
Hope this helps. Mark me brainest please.
Anna ♥
Which is an advantage of using equations for solving problems?
O A. Equations must always be used with a table, graph, or diagram.
B. You can use algebra to solve the equation.
C. What the equation represents can be difficult to remember.
D. Every problem needs an equation in order to be able to solve it.
Answer:
D.Every problem needs an equation in order to be able to solve it
The figure below shows a right triangle with a square made from its hypotenuse. What is the area of the square?
Answer:
50cm^2
Step-by-step explanation:
side length is square root 50 so you multiply square root 50 by square root 50 which gives you 50
What is the smallest number that can be added to 652 to make it completely divisible by 3
Answer:
2
Step-by-step explanation:
652/3 = 217 1/3
Add 2 it becomes 654
654 / = 218
Answer:
I believe the smallest you can add is two, because 654 / 3 is 218.
Step-by-step explanation:
652 / 3 = 217.333333333
653 / 3 = 217.666666667
654 / 3 = 218
A photographer has 12 photographs and needs to select 8 of them for a gallery show. How many ways can the photographer choose the 8 photographs?
19,958,400
445
495
990
Answer:
19,958,400
Step-by-step explanation:
There are 12 ways the photographer could go in picking the first card.
After picking the first one, there will be 11 ways left for the second.
After picking the first one, there will be 10 ways left for the third, and so on...
So our answer = (12)(11)(10)(9)(8)(7)(6)(5) = 19,958,400
Please can someone help will give brainliest. No links or will get banned?
Answer:
F
Step-by-step explanation:
9/15- ratio of two legs of the smaller triangle
13.5/x- ratio of two legs of the larger triangle
9/15= 13.5/x
cross multiply
9x= 202.5
x=22.5
Use the following graph of the function f(x) = 3x^4 − x^3 + 3x^2 + x − 3 to answer this question: What is the average rate of change from x = −1 to x = 0?
A. −6
B. −3
C. 3
D. 6
9514 1404 393
Answer:
A. -6
Step-by-step explanation:
The average rate of change on that interval is given by ...
m = (f(0) -f(-1))/(0 -(-1)) = f(0) -f(-1)
m = -3 -(3) = -6
The average rate of change on the interval is -6.
Answer:
A. -6Step-by-step explanation:
#CarryOnLearningwhich system or equation is represented in the graph?
(A) y=-2
x-2y=6
(B) y=-2
x+2y=6
(C) y=-2
2×-y=3
(D) y=-2
2×+y=-3
Answer:
[tex] (A)\displaystyle \begin{array} {ccc} \displaystyle y = - 2 \\ x - 2y = 6\\ \end{array} [/tex]
Step-by-step explanation:
Equation of the blue line:since the line is horizontal and passes -2 the equation of the blue line should be
[tex] \displaystyle \large y = - 2[/tex]
Equation of the red line:remember The form of equation of a line
[tex] \displaystyle \boxed{ \displaystyle y = mx + b}[/tex]
where m is slope of the line and b is the y-intercept we can clearly see that the red line crosses y-axis at (0,-3) therefore b=-3
to figure out m we can consider the following formula:
[tex] \displaystyle m = \frac{ \Delta y}{ \Delta x} [/tex]
from the graph we acquire ∆y=1 and ∆x=2
thus substitute:
[tex] \displaystyle m = \frac{ 1}{ 2} [/tex]
so we have figured out m and b
therefore our equation of blue line is
[tex] \displaystyle y = \frac{1}{2} x - 3[/tex]
our given options are in standard form so
move -3 to left hand side and change its sign:
[tex] \displaystyle y + 3= \frac{1}{2} x [/tex]
cross multiplication:
[tex] \displaystyle 2y + 6= x[/tex]
move 6 to right hand side and x to left hand side and change its sign
[tex] \displaystyle - x + 2y = - 6[/tex]
multiply both sides by -1:
[tex] \displaystyle x - 2y = 6[/tex]
hence, our system of linear equation is
[tex] \displaystyle \begin{cases} \displaystyle y = - 2 \\ x - 2y = 6\\ \end{cases}[/tex]
Find the slope and y intercept of each line.
Answer: y=x+1
Step-by-step explanation:
what is the answer to this problem please3 3/8 - 5 1/2 =?
Answer:
-2 1/8
Step-by-step explanation:
In Problems 59–62, find the length of each side of the triangle
determined by the three points P1, P, and Pz. State whether the
triangle is an isosceles triangle, a right triangle, neither of these, or
both. (An isosceles triangle is one in which at least two of the sides
are of equal length.)
59. P = (2,1); P2 = (-4,1); Pz = (-4,-3)
9514 1404 393
Answer:
right triangle
Step-by-step explanation:
Segment P1-P2 is horizontal of length 2-(-4) = 6. Segment P2-P3 is vertical of length 1-(-3) = 4. The horizontal and vertical sides are perpendicular to each other, so it is a right triangle. The sides are of different lengths, so it is a scalene triangle (not isosceles).
What is the area of the irregular polygon shown below?
Answer:
86
Step-by-step explanation:
the rectangle portion is 18*4= 72
1 triangle portion is 1/2bh where the base is 4 and height is 3.5
1/2*14=7
the 2nd triangle as the same proportions, so it is also 7
72+7+7=86
Use the order of operations to find the value of the expression: 12 ÷ 3 + 4 x 5
40
42
24
18
Show how you will find the remainder when 2x^2 + 5x – 3 is divided x + 3 by using synthetic division.
Given:
Dividend = [tex]2x^2+5x-3[/tex]
Divisor = [tex]x+3[/tex]
To find:
The remainder by using the synthetic division.
Solution:
We have,
Dividend = [tex]2x^2+5x-3[/tex]
The coefficients of dividend are 2, 5, -3. Write these elements in the top row of synthetic division.
Divisor = [tex]x+3[/tex]
The value of divisor is 0 at [tex]x=-3[/tex]. So, write -3 on the left side of division.
Write down the first coefficient of dividend in bottom row, then multiply it by -3 and write the result below the next coefficient of dividend then add the coefficient and write the result in bottom row, then repeat the steps up-to last coefficient.
-3 | 2 5 -3
| -6 3
------------------------------------------
2 -1 0
-----------------------------------------
Here, the first two elements of the bottom row represent the coefficient of quotient and last element represent the remainder.
Therefore, the remainder is 0.
If a + b+ c = 9 and ab + bc + ca = 26, find a2 + b2 + c2.
9514 1404 393
Answer:
29
Step-by-step explanation:
We can use ...
(a +b +c)² = a² +b² +c² +2(ab +bc +ca)
9² = a² +b² +c² +2(26)
a² +b² +c² = 81 -52 = 29
Step-by-step explanation:
We know the formula:
(a+b+c)² = a² + b² + c² + 2(ab+bc+ca)
Given:
a+b+c = 9 & ab+bc+ca = 26
Now putting the values in the above formula,
We get,
(9)² = a² + b² + c² + 2×26
81 = (a² +b² +c²) + 52
(a² +b²+c²) = 81-52
(a² + b² + c²) = 29 (Answer)
What is the diameter of a circle with the equation (x – 4)2 + (y + 6)2 = 64?
O 4
O 8
O 16
O 64
Answer:
the answer is 16
Step-by-step explanation:
i hope i helped you but next time study well :)
35. Look at the expression Which shows an equivalent expression that can be used to find the sum? a) 1
Answer:
P u s s y + p e n I s = babyyyyyyyyyy
If Ax) = 3x-12, what is f(2)?
O A. -18
B. 18
C. 6
D. -6
Answer:
D
Step-by-step explanation:
f(x) = 3x - 12
f(2) = 3(2) - 12
= 6 - 12
= -6
Answer:
The answer is -6
Step-by-step explanation:
f(x) = 3x - 12; f(2)
f(2) = 3x - 12
f(2) = 3(2) - 12
f(2) = 6 - 12
f(2) = -6
Thus, The answer is -6
-TheUnknownScientist
Help please I’ll give extra poubts
Answer:
the answer is B
Step-by-step explanation:
subtract 33 from 90
Evaluate the expression for r=6
19+r=
Answer:
25
Step-by-step explanation:
r = 6
19 + r
= 19 + 6
= 25
25 is the answer.
Answer:
The answer is 25
Step-by-step explanation:
19 + r; r = 6
19 + r
19 + 6 = 25
Thus, The answer is 25
-TheUnknownScientist
If x - 12y= -210 and x -6y=90, then x=
Answer: x = -30
Step-by-step explanation:
y = -20 by using process of elimination substitute y as -20 in either of the equations you get -30 for x
The solution to the system of equations is x = 390 and y = 50. The value of x is equal to 390.
To find the value of x, solve the system of equations using the method of substitution . Let's use the method of elimination:
Given equations:
x - 12y = -210 (1)
x - 6y = 90 (2)
To eliminate x, we can subtract equation 2 from equation 1:
(x - 12y) - (x - 6y) = (-210) - 90
Simplifying the equation:
x - 12y - x + 6y = -210 - 90
-6y = -300
Divide both sides of the equation by -6:
y = -300 / -6
y = 50
Now, substitute the value of y back into either equation:
x - 6(50) = 90
Simplify the equation:
x - 300 = 90
Add 300 to both sides of the equation:
x = 90 + 300
x = 390
Therefore, the solution to the system of equations is x = 390 and y = 50.
Learn more about Substitution method here:
https://brainly.com/question/22340165
#SPJ6
A jewelry store is featuring a diamond in the shape of a square pyramid. The side length of
the diamond is 8 millimeters and the slant height is 6 millimeters.
Answer:
128√5/3 mm³
Step-by-step explanation:
Since we are not told what to find, we can as well look for the volume of the pyramid
Volume of a square pyramid: V = (1/3)a²h
a is the side length of the square
h is the height of the pyramid
Given
a = 8mm
l² = (a/2)² + h²
l² = (a/2)² + h²
6² = (8/2)² + h²
h² = 6² - 4²
h² = 36 - 16
h² = 20
h = √20
Volume of a square pyramid = (1/3)*8²*√20
Volume of a square pyramid = 1/3 * 64 * 2√5
Volume of a square pyramid = 128√5/3 mm³
Please help me please
Answer:
F
Step-by-step explanation:
The average height of Sally, Jackson, Tina and David is 150 cm per
person. The average height of Sally, Jackson and Tina is 145 cm per
person. Tina is 5 cm taller than David. Jackson is 4/5 as tall as
David. How tall is Sally? (in centimeters)
Answer:
129 cm
Step-by-step explanation:
The total height of all the people: 150 × 4 = 600 cm
The total height of Sally, Jackson and Tina: 145 × 3 = 435 cm
David’s height: 600 – 435 = 165 cm
Tina’s height: 165 + 5 = 170 cm
Jackson’s height: 170 × 4/5 = 136 cm
Therefore, Sally’s height: 600 – 165 – 170 – 136 = 129 cm
Thenks and mark me brainliest :))
The height of Sally will be 133 centimeters and the height of Jackson is 132cm.
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
The average height of Sally, Jackson, Tina, and David is 150 cm per person. Then the equation is given as,
(S + J + T + D) / 4 = 150
S + J + T + D = 600 ...1
The average height of Sally, Jackson, and Tina is 145 cm per person. Then the equation will be
(S + J + T) / 3 = 145
S + J + T = 435 ...2
Tina is 5 cm taller than David. Then the equation will be
T = D + 5 ...3
Jackson is 4/5 as tall as David. Then the equation will be
J = (4/5)D ...4
From equations, 1 and 2, then we have
435 + D = 600
D = 165 cm
From equation 4, then we have
J = (4/5) x 165
J = 132 cm
From equation 3, then we have
T = 165 + 5
T = 170 cm
From equation 2, then we have
S + 132 + 170 = 435
S = 133 cm
The height of Sally will be 133 centimeters.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ5
The combination for a lock uses three of the digits 1, 2, 3, and 4. How many three-digit combinations can the lock have? Explain your answer.
Answer:
24
Step-by-step explanation:
First you start by writing down all the combinations that start with each number. Then you just write the left over numbers and you'll end up with 24 because the is six of each starting number. Ex: 123, 132, 134, 143, 124, 142...
The graph shows the quadratic function f. Find f (-4)