Answer:
The Constant of Proportionality of number 11 is equal to number 11=1Step-by-step explanation:
#hopeithelpsstay safe and keep wellmark me as your brainliest pls4) Does the point (0, -4) satisfy the
inequality
y > 8x + 2?
B) no
A) yes
Answer:
B) NO
Step-by-step explanation:
(-4)=8(0)+2
-4=0+2
-4=2
Incorrect
PLEASE HELP!!!
What is the interquartile range of the data?
(73 points)!!
Answer:
2,5
Step-by-step explanation:
2.5+3.0+3.5+0.0= 9
9:4= 2.5
Which of the following values is a solution for the inequality statement?
Select all that apply.
-5 ≤ -4r + 3
A.7
B. 4
C. -5
D. 0
E. 3
Answer:
-5 and 0
Step-by-step explanation:
what is 42 + 40 x 5 (3 +8) x 25
Answer:
55042
Step-by-step explanation:
Answer:
55042
Step-by-step explanation:
Which is a simplified form of the expression 6(2t – 3) + 3(t + 5)?
A. 11t - 2
B. 12t - 8
C. 9t - 2
D. 15t - 3
Answer:
it's option D.
Step-by-step explanation:
see attachment in case u need steps
Answer:
d
Step-by-step explanation:
Complete the function for this graph.
Answer:
1 and 4
Step-by-step explanation:
The vertex of the graph is (1,4) which is translated up 4 units
14. A cellular telephone company recently conducted research into the length of calls (in
minutes) made by customers. In a random sample of 30 calls, the sample mean was
x= 18.6 minutes and the standard deviation was s=5.2 minutes. Construct and interpret
a 90% confidence interval for true mean call length. (4-step process)
Answer:
The correct answer is "16.987, 20213".
Step-by-step explanation:
Given that,
[tex]n=30[/tex]
[tex]\bar x=18.6[/tex]
[tex]s = 5.2[/tex]
[tex]df=30-1[/tex]
[tex]=29[/tex]
[tex]\alpha = 0.10[/tex]
By using the table, the critical values of t will be:
= [tex]\pm 1.699[/tex]
Now,
The confidence interval will be:
= [tex]\bar x \pm \frac{t\times s}{\sqrt{n} }[/tex]
By putting the values, we get
= [tex]18.6 \pm \frac{1.699\times 5.2}{\sqrt{30} }[/tex]
= [tex]16.987,20.213[/tex]
I’m so confused, I will try to mark brainliest, sorry if I can’t figure it out.
Answer:
[tex]x^{\circ}+105^{\circ}=180^{\circ},\\x^{\circ}=z^{\circ},\\180^{\circ}-z^{\circ}=y^{\circ}[/tex]
Step-by-step explanation:
Statement 1:
True - These two angles are supplementary (add up to 180 degrees) because they form one side of a line.
Statement 2:
True - These two angles are vertical angles (opposite to each other at intersection of two lines). All vertical angles are equal.
Statement 3:
False - These two angles are vertical and therefore are equal. Thus, they cannot have a difference of 105.
Statement 4:
False - Two of these angles form one side of a line which is equal to 180 degrees. Since the third angle is greater than zero, they cannot all add up to 180 degrees.
Statement 5:
True - These two angles are supplementary (add up to 180 degrees) because they form one side of a line.
Statement 6:
False - These two angles are supplementary (add up to 180 degrees) because they form one side of a line and therefore cannot be equal to 105.
Answer and Step-by-step explanation:
The answers are:
x + 105 = 180 (Supplementary angles = 180 degrees)
x = z (Vertical angles are congruent)
180 - z = y (Supplementary angles = 180 degrees)
#teamtrees #PAW (Plant And Water)
I need help with this problem. please help. thanks
Answer:
D
Step-by-step explanation:
Answer:
Option B. ( For Question 32...)
Step-by-step explanation:
Can someone help me with this? Will Mark brainliest.
You're answer is Major Arc.
The volume of a cylinder is 156 pi centimeters cubed. What is the volume of a cone with the same base and height as the cylinder?
Answer:
52 pi centimeters cubed
Step-by-step explanation:
volume of a cylinder = πr^2h
Volume of a cone 1/3(πr^2h)
π = 22/7
r = radius
The volume of a cone is one-third that of a cylinder
volume of cone = 156/3 = 52
The volume of a rectangular prism is 768 ft3. What is the volume of the same shape if the width is changed by a scale factor of 13?
Answer:
The volume is:
[tex]V_{2}=9984\: ft^{3}[/tex]
Step-by-step explanation:
The equation of the volume of a rectangular prism is:
[tex]V=L*W*H[/tex]
Where:
L is the lengthW is the widthH is the heightWe know the volume is 768 ft³ and the new width change a 13 factor, in other words, W(2) = 13W(1), so we can divide each equation of the volume to find the new volume.
[tex]\frac{V_{1}}{V_{2}}=\frac{L*W*H}{L*W*13H}[/tex]
[tex]\frac{768}{V_{2}}=\frac{L*W*H}{L*W*13H}[/tex]
L and W remain constant.
Therefore, we just need to solve it for V(2).
[tex]\frac{768}{V_{2}}=\frac{1}{13}[/tex]
[tex]V_{2}=13*768=9984\: ft^{3}[/tex]
I hope it helps you!
Question 2 of 10
f(x)=3✅x+11. Find the inverse of f(x).
A. f-1(x) = x^3 +11
B. f-1() = x^3 - 11
c. f-1(x) = (x +11)^3
D. f-1(x) = (x– 11)^3
SUBMIT
CAN SOMEONE PLEASE HELP ME AND SOLVE THE PROBLEM STEP BY STEP IF IT WAS DONE CORRECTLY I WIL PUT U AS BRANLIEST THANK YOU!!!
Answer: (5,3)
Step-by-step explanation:
y=x^2-10x+28
Complete the square.
y=(x-5)^2+3
Use the vertex form, y=a(x-h)^2+k to find the values of a, h, and k.
a=1
h=5
k=3
Find the vertex (h, k).
(5, 3)
sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and its length is 3 times its width
Answer:
Length: 12 meters
Step-by-step explanation:
Step 1:
Let us start with the formula of the perimeter of a rectangle, [tex]P=2l+2w[/tex], where l represents the length of the rectangle, and w represents the width of the rectangle.
We can set width as variable x. We are also given that the length is three times the width, hence it can be represented as 3x.
Step 2:
We can now write our equation and solve for x :
[tex]24=2x+2*2x\\24=2x+4x\\24=6x\\x=\fbox{4}[/tex]
We set x as width, so the width is 4 meters. However, in this problem we are looking for the length. The length is three times the width, so it would be [tex]\fbox{12}[/tex] meters.
I hope this helps! Let me know if you have any questions :)
Answer:
From the given information, there are two equations in terms of x and y:
2x + 2y = 24 (perimeter of the rectangular plot)
x = 3y (relationship between length and width)
The second equation is expressed in terms of x, so directly substitute the value of x into the first equation and find y:
2(3y) + 2y = 24
y = 3
Substitute y in the second equation to find x:
x = 3(3)
x = 9
The fencing cost is $25 multiplied by the length of the side Sam wants to fence: 25 × 9 = 225. Therefore, Sam needs to spend $225 to fence that side of his plot.
Step-by-step explanation:
Work out the value of x y z
Give your answer as a fraction in its simplest form.
Answer:
9/20
Step-by-step explanation:
1/3*3/5*(2*1/4)
1/3*3/5*9/4
(1*3*9)/(3*5*4)=27/60 = 9/20
Situation: Find the substance's half-life, in days. Round your answer to the nearest tenth. A 33 gram sample of a substance that's used for drug research has a k-value of 0.1081. Enter the correct answer. N = Noe DONE No = initial mass (at time t = 0) 000 OO N = mass at time t k= = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days
Answer:
1051 or..
10.51
Step-by-step explanation:
Since 33=30 and 0.1081 is supposed to be as a percentage since its already a decimal you could just round it and make it into a fraction then once you get the answer to the fraction it would either be 1081 since 0.1081 as a fraction is 1081/10000 or you could make into 10.81 as a decimal but after that you subtract "30 - 1,081" or 10.81 -30" either one of them and each of those numbers would give you the same exact number. Answer: 1051 or as a decimal 10.51
Answer:
The correct answer 6.4 on PLATO edmentum
Step-by-step explanation:
I did the test
What is the slope of the line on the graph
Answer:
[tex]\displaystyle m = \frac{1}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a coordinate planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph
Point (-4, 0)
Point (0, 2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m = \frac{2- 0}{0- -4}[/tex][Fraction] Subtract: [tex]\displaystyle m = \frac{2}{4}[/tex][Fraction] Simplify: [tex]\displaystyle m = \frac{1}{2}[/tex]I NEED HELP WITH THESE TWO QUESTIONS ASAP PLEASE!!!
Answer:
6. (2,1) 7. (2,2)
Step-by-step explanation:
Number 6, Since it is a dilation of .5 you divide the x and y coordinate by 2 to get (2,1). X - 4/2=2, Y - 2/2=1
Number 7, Since it's rotating 90 degrees counterclockwise you switch the x and y coordinates. So from (x,y) to (y,x) and also when going counterclockwise you have to make the y coordinate becomes negative, so the counterclockwise equation is (-y,x) plug in your numbers and you get (2,2) as your 90 degree counterclockwise rotated coordinates.
Sidewalk chalk comes in a pack of 24 for $2.59 Bruce takes $20 to the store and purchases as many packs of sidewalk chalk as he can with the money
After purchasing sidewalk chalk how much change your Bruce have assuming no sales tax?
note: type your answers decimal number
Answer:
He has $1.87 change left after purchasing 7 packs of chalk.
Step-by-step explanation:
20/2.59 = 7.722 approx.
So Bruce can purchase 7 packs of chalk at $2.59 each.
Change left
= 20 -7*2.59
= $1.87
which expression is the equivalent -2f-3+f?
Answer:
-f-3
hope this helps
have a good day :)
Step-by-step explanation:
Look at triangle STU:
A right triangle STU is shown with the right angle at T. The length of side ST is labeled as 42 cm, and the length of side TU is labeled as 56 cm.
What is the length (in centimeters) of side SU of the triangle?
70 centimeters
77 centimeters
90 centimeters
98 centimeters
Answer:
70 cm
Step-by-step explanation:
42^2 + 56^2 = c^2
1764 + 3136 = c^2
4900 = c^2
70 = c
Determine the equation of the circle graphed below
Answer:
[tex](x-1)^2+(y-6)^2=16[/tex]
Step-by-step explanation:
The equation of a circle is given by [tex](x-h)^2+(y-k)^2=r^2[/tex], where [tex](h,k)[/tex] is the center of the circle and [tex]r[/tex] is the radius of the circle.
From the diagram, we can find the following:
the radius of the circle is 4 the center of the circle is located at (1,6)Thus, we have:
[tex](x-1)^2+(y-6)^2=4^2,\\\boxed{(x-1)^2+(y-6)^2=16}[/tex]
Answer:
(x-1)^2 + (y-6)^2 = 16
Step-by-step explanation:
center = (1,6)
radius = 4
equation of a circle (x-h)^2+(y-k)^2=r^2
(x-1)^2 + (y-6)^2 = 16
Simplify each only using positive exponents:
2x^-3 • 4x^2
2x^4 • 4x^-3
2x^3y^-3 • 2x
[tex]\frac{2}{x}[/tex]
[tex]\frac{x}{2}[/tex]
[tex]\frac{4x^4}{y^3}[/tex]
Step-by-step explanation:a. 2x^-3 • 4x^2
To solve this using only positive exponents, follow these steps:
i. Rewrite the expression in a clearer form
2x⁻³ . 4x²
ii. The position of the term with negative exponent is changed from denominator to numerator or numerator to denominator depending on its initial position. If it is at the numerator, it is moved to the denominator. If otherwise it is at the denominator, it is moved to the numerator. When this is done, the negative exponent is changed to positive.
In our case, the first term has a negative exponent and it is at the numerator. We therefore move it to the denominator and change the negative exponent to positive as follows;
[tex]\frac{1}{2x^3} . 4x^2[/tex]
iii. We then solve the result as follows;
[tex]\frac{1}{2x^3} . 4x^2[/tex] = [tex]\frac{2}{x}[/tex]
Therefore, 2x⁻³ . 4x² = [tex]\frac{2}{x}[/tex]
b. 2x^4 • 4x^-3
i. Rewrite as follows;
2x⁴ . 4x⁻³
ii. The second term has a negative exponent, therefore swap its position and change the negative exponent to a positive one.
[tex]2x^4 . \frac{1}{4x^3}[/tex]
iii. Now solve by cancelling out common terms in the numerator and denominator. So we have;
[tex]\frac{x}{2}[/tex]
Therefore, 2x⁴ . 4x⁻³ = [tex]\frac{x}{2}[/tex]
c. 2x^3y^-3 • 2x
i. Rewrite as follows;
2x³y⁻³ . 2x
ii. Change position of terms with negative exponents;
[tex]2x^3.\frac{1}{y^3} .2x[/tex]
iii. Now solve;
[tex]\frac{4x^4}{y^3}[/tex]
Therefore, 2x³y⁻³ . 2x = [tex]\frac{4x^4}{y^3}[/tex]
Evaluate the expression 33.15/n n=1.5
Answer:
22.1
Step-by-step explanation:
33.15/n
33.15/1.5
= 22.1
1 of 10
Find the area of a circle with radius, r = 6.6m.
Give your answer rounded to 2 DP.
r
[tex]\sqrt{(-3-4)^{2}+(-7-3)^{2) }[/tex]
Answer:
Step-by-step explanation:
[tex]\sqrt{(-3-4)^2+(-7-3)^2[/tex]
[tex]\sqrt{(-7)^2+(-10)^2[/tex]
[tex]\sqrt{49+100[/tex]
[tex]\sqrt{149[/tex]
In Hackensack High School, the ratio of students to teachers is 9 to 2. If there
are 90 teachers at the High School, how many students are there?
Answer:
405?
Step-by-step explanation:
90 didved by two is 45
45 times nine is 405
Find the value of x ?
Answer: 6
Step-by-step explanation:
4+(x-3) = 2x-5
x+1 = 2x-5
x=6
Find the equation of the line passing
through the points (3,-2) and (4, 6).
y = 8x + [?]
Step-by-step explanation:
1.) Plug in one of the points.
y = 8x + b
6 = 8(4) + b
2.) Solve for b (or [?])
[tex]6 = 32 + b \\ - 32 \: \: \: \: \: \: \: \: \: - 32[/tex]
32 cancels out on the right side.
Subtract 32 from 6, which is -26
3.) -26 = b
4.) Check with other point:
-2 = 8(3) + b
-2 = 24 + b
Cancel out 24 on the right side: 24-24 = 0
-2 - 24 = -26
-26 = b