Answer:
Answer: I think c,e
Answer: The students were in school and were not allowed to text
The time-span from 10 AM to 3:59 PM is when 0 messages were sent in total. This is likely the duration of either the entire school day or much of it. So it's likely the school does not allow texting or does not allow phones to be in use.
x² + 6x +8=0
In factoring algorithm
Answer:
(x+2)(x+4)
Step-by-step explanation:
Answer:
( x + 2 ) ( x + 4 )
Step-by-step explanation:
Hi can some1 help me for q3 only.. thanks!! If possible please help for q4 too!!
How do I Graph y=-2x+5
Answer:
Slope-Intercept Form y = mx + b
Y = 5
Slope = -2/1
Step-by-step explanation:
Slope-Intercept Form y = mx + b
m = Slope; Rise over Run; Remember there is always an understood 1 in the denominator. If the slope is positive it goes up and to the right and if the slope is negative it goes down and to the right.
b = Y-intercept; This is where the line crosses the y-axis at. If it's positive it's above the x-axis and if negative below.
I don’t understand. I need help ASAP. Thank you for the help!
im crying plz helpme nooooooooooooooooooo aaaaaaaaaaaaaaaa
Answer:
11 or C
Step-by-step explanation:
We have to find the zeros, so we set h(t) as 0 and solve for t. Solving we get t=-3 or 11. Since the time cannot be negative, we have t=11.
Can you mark me BRAINLIEST?
Answer:
:c
Step-by-step explanation:
Determine which ordered pairs are also in the relation where the rise is -2, the run is
3, and (6,2) lies on the line.
a) (-9, -12) and (-6, 2)
b) (-3, 4) and (3,8)
c) (0,9) and (-2, 12)
d) (9,0) and (12, -2)
Answer:
idk
Step-by-step explanation:
idk :)
The ordered pair that has a rise of -2 and a run of 3, and also lies on the same line as the point (6, 2) is: d) (9,0) and (12, -2)
The Rise and Run of a LineThe rise of a line is the change in the y-values.The run of a line is the change in the x-values.The rise of the ordered pair, (9,0) and (12, -2):
Rise = change in y = -2 - 0 = -2.
The run of the ordered pair, (9,0) and (12, -2):
Run = change in x = 12 - 9 = 3.
Therefore, the ordered pair that has a rise of -2 and a run of 3, and also lies on the same line as the point (6, 2) is: d) (9,0) and (12, -2)
Learn more about rise and run of a line on:
https://brainly.com/question/14043850
Which object shown below could we slice perpendicular to its base/face to create a cross-section whose shape has two edges, one straight and one curved?
This question is not complete because it lack the options to choose from.
Complete question:
Which object shown below could we slice perpendicular to its base/face to create a cross-section whose shape has two edges, one straight and one curved?
A- Cone
B- Cube
C- Cylinder
D- Sphere
Answer:
A- Cone
Step-by-step explanation:
A cone is a one of the geometric shapes in which objects exist in that we have. A cone is 3 Dimensional shape.
A cone has a top point and a base and it is formed when a group or send of lines are drawn from the top point and it's connects to the both sides of the base.
A cone is a shape that when we slice the perpendicular to its base/face, we create a cross-section and the resulting shape has two edges, one straight and one curved.
Which graph represents Y=2/5x+2
Answer:
Your graph will have a y intercept of (0,2) and from that point move up 2 and to the right 5 to the point (5,4) then draw a line connecting and extending beyond these two points.
Step-by-step explanation:
y = mx + b
m = slope which is rise over run
b = y intercept
y = 2/5x + 2
m = 2/5
b = 2
This means that your graph will have a y intercept of (0,2) and from that point move up 2 and to the right 5 to the point (5,4) then draw a line connecting and extending beyond these two points.
A ) What is the volume of the cone?
B) Explain
Please help me :))
Answer:
a) 16[tex]\pi[/tex]
b) Using [tex]\pi[/tex] is more accurate because it represents the exact and full value of pi, rather than an estimation or approximation like 3.14.
Step-by-step explanation:
The formula to find the volume of a cone is [tex]\frac{1}{3} \pi r^{2} h[/tex]. We know the radius is 6, so all we need to find is the height, h. By using the Pythagorean theorem, we can see that the height is [tex]10^{2} - 6^{2} = \sqrt{64}[/tex], or 8. Plugging in all the values into the formula gives us:
V = [tex]\frac{1}{3} \pi (6)(8)[/tex]
V = 16[tex]\pi[/tex]
Hope this helped! :)
The Math Club wants to order t-shirts to recognize students who improved their performance in Algebra I for their hard work and effort. Hot Shirts charges $10 per shirt with a $15 set up charge. T-Shirt World charges $5 per shirt with a $50 set up charge.
Answer:
Cost of ordering t-shirts the same at both sides is 7
The cost is $85
Step-by-step explanation:
let x equal the number of tshirts
Hence:
15 + 10x = 50 + 5x
10x-5x= 50-15
5x = 35
35/5x
x = 7
Therefore the cost of ordering t-shirts the same at both sides is 7
The cost is $85
The diagram shows a right-angled triangle and a parallelogram.
24 cm side of triangle
30 cm base of parallelogram
7cm base of triangle
The area of the parallelogram is 5 times the area of the triangle.
The perpendicular height of the parallelogram is hcm.
(b) Find the value of h.
Answer:
see explanation
Step-by-step explanation:
i know this is very late but ..
area of triangle= b*h/2
24*7/2=84
and it said the parallelogram is 5 times the area so we do
84*5=420 which is the total area of the parallelogram
now to find h we need to do
420/30=14
h=14 because 30*14=420
The required value of h is 14 cm for the given parallelogram.
What is Parallelogram?A parallelogram is defined as a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
The area of the triangle is (247)/2 = 84 square cm.
Since the area of the parallelogram is 5 times the area of the triangle, the area of the parallelogram is 845 = 420 square cm.
The area of the parallelogram is equal to the base (30 cm) multiplied by the height (h cm), so we can set up the equation:
30h = 420
To find the value of h, we can divide both sides of the equation by 30:
h = 420/30
h = 14 cm
Thus, the required value of h is 14 cm.
Learn more about parallelograms here:
brainly.com/question/11220936
#SPJ2
The inside of a refrigerator in a medical laboratory measures 17 inches long by 18 inches wide by 42 inches high. How many cubic inches can it hold?
Answer:
12,852
Step-by-step explanation:
V= l*w*h
V=17*18*42
V= 12,852
Imani sells shirts packed in boxes that are each 15in. x 10in. x 2in. Imani stacked 3 boxes and wrapped them with one piece of paper. How much paper did she use, not including overlap?
Answer:
She used 600 square inches of paper.
Step-by-step explanation:
Since the box are 15 in x 10 in x 2 in and are stacked on top of each other, they form a bigger rectangular prism with 15 in x 10 in x 6 in. In order to calculate how much paper she used, we need to calculate the surface area of this prism, this is done by using the following formulla:
surface area = 2*width*length + 2*width*height + 2*length*height
surface area = 2*15*10 + 2*15*6 + 2*10*6 = 300 + 180 + 120
surface area = 600 in².
She used 600 square inches of paper.
what’s the answer for this
Answer:
63 yd²
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
Here b = 7 and h = 9, thus
A = 7 × 9 = 63 yd²
what is 2x + 5 = 12
Answer:
x = 7/2 (or 3 1/2 or 3.5)
Step-by-step explanation:
2x + 5 = 12
2x = 7
x = 7/2 (or 3 1/2 or 3.5)
Answer:
3 or 3.5
Step-by-step explanation:
2(3)+5=12
6+5=12
Or
When you want to find x:
2x+5=12
-5=-5
2x=7
2/2x=7/2
3.5x
A composite figure is shown. What is the volume of the composite figure?
4 cm
6 cm
4 cm
9 cm
5 cm
Answer:
4320
Step-by-step explanation:
You need to multiply all of the numbers, hope that helps
What is 2(n-1)+4n=2(3n-1)
Answer:
Infinite solutions
Step-by-step explanation:
Distribute the 2 to (n - 1), and distribute the 2 to (3n - 1), like so:
2(n - 1) + 4n = 2(3n - 1)
2n - 2 + 4n = 6n - 2
Add like terms (2n and 4n):
6n - 2 = 6n - 2
Subtract 6n from both sides:
-2 = -2
Since we ended up with the same term on both sides, we can't do anything else, meaning this equation has infinite solutions.
Bob the Wizard makes magical brooms. He charges 125 gold pieces for each magical broom he makes for his customers. He also charges a one-time fee of 50 gold pieces for his initial consultation. The total number G of gold pieces Bob charges is a function of x, the number of magical brooms he makes. Write the function's formula.
Answer:
y= 125x + 5o
Step-by-step explanation:
Since the constant is 125 we add the x to show each broom he makes. The one time fee is not a constant so therefore it will only be added once.
Answer:
f(x)=125g+50
Step-by-step explanation:
He is charging $125 for each gold piece so you would multiply “g” and 125.
You would add 50 as a one time fee so you add 50.
Describe when you would need to solve a system of linear equations, instead of a single linear equation
Answer:
See explanation below
Step-by-step explanation:
A system of linear equations is a system that is formed when you have two or more variables, for example:
[tex]x=2y+z\\3y-4x=7y+2z\\2y+z=4x+3y[/tex]
In this case, we have 3 equations with 3 variables in total (x, y and z). Thus, we would need to solve a system of linear equations (they are linear because none of the variables have exponents).
On the other side, a single linear equation has only one variable that we need to find, for example:
[tex]3x=\frac{5}{3}[/tex]
In this case we would just have to solve for x
[tex]3x=\frac{5}{3} \\9x=5\\x=\frac{5}{9}[/tex]
Thus, we need to solve a system of linear equations when we have more than one variable (and more than one equations) as opposed to when we have just one variable and a single equation (single linear equation)
For what values of theta (0
r=-3 + 4 cos(theta)? Note that the maximum r-value occurs at a point that is the maximum distance from the pole.
Answer:
[tex]\theta = \pm \pi \cdot i[/tex], [tex]\forall i \in \{0,2,4,...\}[/tex]
Step-by-step explanation:
The determination of the maximum can be done with the help of the First and Second Derivative Tests. The first and second derivatives of the function are, respectively:
[tex]r' = -4\cdot \sin \theta[/tex]
[tex]r'' = -4\cdot \cos \theta[/tex]
First Derivative Test
[tex]-4\cdot \sin \theta = 0[/tex]
[tex]\sin \theta = 0[/tex]
Given the periodicity of the function, there are multiple solutions. The set of solutions is represented by:
[tex]\theta = \pm \pi \cdot i[/tex], [tex]\forall i \in \mathbb{N}_{O}[/tex]
Second Derivative Test
There are multiple solutions. If [tex]i[/tex] is an odd number, then cosine is negative and output is positive, which means that associated value is an absolute minimum. Otherwise, if [tex]i[/tex] is zero or an even number, the cosine is positive and output is negative, which means that associated value is an absolute minimum. Consequently, the values of [tex]\theta[/tex] so that [tex]r[/tex] is a maximum are:
[tex]\theta = \pm \pi \cdot i[/tex], [tex]\forall i \in \{0,2,4,...\}[/tex]
Clara slept for a total of 126 hours over the cousrve of two weeks.If she sleeps for the same amount of each time each night,how many hours does she sleep per night?
Answer:
9
Step-by-step explanation:
Answer:
9 hours per night
Step-by-step explanation:
Assuming a week is 7 days
7 * 12 = 14 days
126/14=9
She slept 9 hours per night
Solve for 2.
Write the smaller solution first, and the larger solution second.
(3x – 6)(-x + 3) = 0
smaller x =
larger x =
Answer:
(3x – 6)(-x + 3) = 0
=> 3x - 6 = 0 => x = 6/3 = 2
and
=> -x + 3 = 0 => x = 3
Hope this helps!
:)
A rectangular prism has a length of 19ft, a height of 19ft, and a width of 6ft. What is its volume, in cubic ft?
Answer:
[tex] \boxed{Volume \: of \: rectangular \: prism = 2166 \: {ft}^{3}} [/tex]
Explanation:
Volume of rectangular prism is same as volume of cuboid
Length = 19 ft
Width = 6 ft
Height = 19 ft
Volume of rectangular prism = Length × Width × Height
= 19 × 19 × 6
= 19² × 6
= 361 × 6
= 2166 ft³
please help me quick
Answer:
d
Step-by-step explanation:
because -2 and going to the left means that it is less than.
BJ = 2x + 1
BF = y + 1
AG = 2y - 3 = ? feet
BG = 6x - 2.5 = ? feet
Answer:
Is there anything else to this question cause it's confusing and I would help you but if there is more information
Step-by-step explanation:
a lab has two bacteria cultures. culture a contains 8*10^4 bacteria and culture b contains 4*10^6 bacterias how do the two cultures compare in zise
Answer:
Culture B has 500 times more bacteria than Culture A
Step-by-step explanation:
8*[tex]10^{4}[/tex]=8*1000=8,000
4*[tex]10^{6}[/tex]=4*1,000,000=4,000,000
Culture A : Culture B
8,000 : 4,000,000
1 : 500
Answer:
b is 500 times more
Step-by-step explanation:
Solve the equation 3(x + 4.5) = 36. If you get stuck, use the diagram.
What is the solution x =
Answer:
x = 7.5
Step-by-step explanation:
Answer:
X is 7.5
Step-by-step explanation:
36 ÷ by 3 = 12
12 - 4.5 =7.5
Therefore X is 7.5.
Hope this Helps!
Fifteen of the 100 digital video recorders (DVRs) in an inventory are known to be defective. What is the probability you randomly select a DVR that is not defective? The probability is nothing.
Answer:
17/20Step-by-step explanation:
Fifteen of the 100 digital video recorders (DVRs) in an inventory are known to be defective, the total number of non-defective DVRs will be 100-15 = 85 DVRs.
If 85 DVRs are not defective, the probability that you randomly select a DVR that is not defective can be expressed as:
P(non-defective DVRs) = Total number of non-defective DVRs /Total DVRs
P(non-defective DVRs) = 85/100
P(non-defective DVRs) = 17/20
Answer:
0.85
Step-by-step explanation:
Given;
Number of defective DVRs D = 15
Total number of DVRs T = 100
Number of non defective DVR N = T - D = 100 - 15 = 85
The probability of selecting a non defective DVR P(N) is equal to the number of non defective DVR divided by the total number of DVRs.
P(N) = N/T
Substituting the values;
P(N) = 85/100
P(N) = 17/20 = 0.85
Rewrite as a simplified fraction.
2.31 with the 1 repeating
Answer: [tex]\frac{104}{45}[/tex]
Step-by-step explanation:
[tex]2.31^-[/tex]
Let x be equal to that.
[tex]x=2.31^-[/tex]
Multiply by 1 followed by as many zeros as repeating numbers. In this case it's just one repeating decimal, therefore, 1 followed by 1 zero or 10.
[tex]10x=2.31^-*10[/tex]
This basically moves the decimal point one number to the right.
[tex]10x=23.11^-[/tex]
Subtract the first equation from this new equation.
[tex]10x=23.11^-\\-x=2.31^-[/tex]
--------------------------
The repeating decimal is eliminated and we are left with:
23.1
- 2.3
---------
20.8
We also have 10 - 1 = 9. We are left with:
[tex]9x=20.8[/tex]
Divide by 9.
[tex]x=\frac{20.8}{9}[/tex]
To get rid of the decimal, multiply by 1 followed by as many zeros as decimals. In this case 1.
[tex]x=\frac{20.8}{9} (\frac{10}{10} )[/tex]
[tex]x=\frac{208}{90}[/tex]
Let's simplify.
208/2=104
90/2=45
[tex]x=\frac{104}{45}[/tex]
whats the circumference of a circle with a radius of 21 meters
Answer:
C =131.88 meters
Step-by-step explanation:
The circumference of a circle is given by
C = 2*pi*r
where r is the radius
C = 2 * pi * 21
C = 42 pi
If we approximate pi by 3.14
C = 42(3.14)
C =131.88 meters
Answer:
131.88 m^2
Step-by-step explanation:
Circumference formula: 2pi × radius
2 × 3.14 = 6.28
6.28 × 21 = 131.88
