Answer:
Step-by-step explanation:
Neither
In 2005, 120 students at Lincoln High School
had smart phones. By 2010, 345 students in the
same school had smart phones. Which of the
following best describes the annual rate of change
in the number of smart phones students had from
2005 to 2010 at Lincoln High School?
A) The average increase in the number of smart
phones per year is 40.
B) The average increase in the number of smart
phones per year is 45.
C) The average increase in the number of smart
phones per year is 50.
D) The average increase in the number of smart
phones per year is 55.
Answer:
The average increase in the number of smart
phones per year is 45
Step-by-step explanation:
Given that :
Number of students who had phones in 2005 = 120
Number of students who had phones in 2010 = 345
(345 - 120) / 5
225 / 5
= 45
Hence, average increase in number of smartphones per year = 45
A function is represented by the graph. Complete the statement by selecting from the drop-down menu. The y-intercept of the function y=3x+2 is Choose... the y-intercept of the function represented in the graph.
need help
Answer:
The y-intercept of the function represented in the graph will be: (0, 2)
The graph is also attached.
Step-by-step explanation:
Given the function
[tex]y=3x+2[/tex]
the y-intercept of the function can be determined by setting x=0 and solving for y.
so
[tex]y=3x+2[/tex]
[tex]y=3(0)+2[/tex]
[tex]y=0+2[/tex]
[tex]y=2[/tex]
Thus, the y-intercept of the function represented in the graph will be: (0, 2)
The graph is also attached.
Answer:
equal to
Step-by-step explanation:
i took test
At Thompson Pass, 12 inches of snow fell during a 16 hour period. At this rate how much snow would fall in 24 hours? Pls help!
Answer:
18 inches of snow
Step-by-step explanation:
First, you'll have to find how much snow falls in a hour: 12/16 = .75 inches
Secondly, you'll multiply that by 24 to find the inches in a full day: 24 x .75 = 18
Answer:
18 inches of snow
Step-by-step explanation:
12:16
24 if you know the butterfly method which is 12/16=24 multiply 12 and 24 together and get 288 and then divide it by 16 which you get 18 inches of snow
9 is subtracted by the sqaure of a number
Answer:
I believe it is x^2-9
Step-by-step explanation:
Since we don't have a specific "number" you use x. It says it's squared to put an exponent of 2. It also says that 9 is subtracted by it so put -9.
Daniel can eat 4 brussels sprouts in 1 minute. How many minutes would it take to eat 12 sprouts?
Answer: 3 minutes.
Work: This is just simple multiplication. 4 x _ = 12. If you look at a multiplication table, it's 3. So, it would take 3 minutes to eat 12 sprouts. I hope this helps, and stay safe! :)
Answer:
3 min
Step-by-step explanation:
[tex]12/4= 3[/tex]
An equation of a line can be written in point slope form given any point (_,_) on the line and the slope of the line ___.
Answer:
.... given any point (x,y) on the line and the slope of the line m.
Step-by-step explanation:
Its because a coordinate's variables are (x,y) due it's position on the graph on the x-axis and y-axis; and the slope of the line is called m in general (it's just a mathematical term/variable due to how it is defined in formulas)
Which statements describe an element? Check all that apply.
1. An element is a pure substance.
2.An element is made of only one type of atom.
3.An element is made of two or more different types of atoms.
4.An element can be broken down into a simpler form.
5.An element cannot be broken down into a simpler form.
Answer:
1,2,5
Step-by-step explanation:
That is just the definition of an element :) the other two answers contradict these.
Help me ASAP for this question
A point located at (-5, 2) is translated right 3 units. What are the coordinates of the image?
(-2,5)
(-2,2)
(-5,5)
(-5, -1)
PLEASE HELP ME
Function A is represented by the equation y= 2x+5.
Function B is a linear function that goes through the points shown in the
table
x134
y-13s9
Which statement correctly compares the rates of change of the two
functions?
OA. The rate of change of function A iS 5.
The rate of change of function B is 2
rate of change of function A is 5
OB.e of change of function B is 4.
OC. The rate of change of function A is 2
The rate of change of function B is 4
OD. The rate o ctag
he rate of
ge of function A is 2
of change of function B is 2
Answer:
D
Step-by-step explanation: BABABOOEY
Find the measure of the angle indicated in bold
Answer:
29) 60°
30) 80°
Step-by-step explanation:
29)
8x + 4 = 11 + 7x
x = 7
∴ ∠ = 11 + 7(7) = 60
30)
14x - 4 = 12x + 8
2x = 12
x = 6
∴ ∠ = 14(6) - 4 = 80
for geometry:(
will give brainist
Answer:
Clearly show i can't see ur answer
Answer:
x = 60
Step-by-step explanation:
These angles are alternate exterior angles because they are on the opposite side of the transversal line and on the outside of a set of two non-transversal lines.
The alternate exterior angles theorem explains that if a pair of non-transversal lines are parallel, then the alternate exterior angles are congruent.
We can use the following equation to solve:
46 = 3x-14
Simplify.
60 = 3x
x= 60
Jay has lost his mother’s favorite necklace, so he will rent a metal detector to try to find it. A rental company charges a one time rental fee of $15 plus $2 per hour to rent a metal detector. Jay has only $35 to spend. What is the maximum amount of time he can rent the metal detector?
Answer:
he can rent it for 10 hours
Step-by-step explanation:
35 - 15 = 20
20 divided by 2 equals 10
Answer:
10 hours
Step-by-step explanation:
Say x is the number of hours he can rent the detector at most. Using it, we can set up this equation:
15 + 2x = 35
Subtract 15 from both sides
2x = 20
Divide by 2 on both sides
x = 10
The graphs below have the same shape. What is the equation of the red
graph?
Step-by-step explanation:
Option B is correct as the y-intercept is 6.
Set up a tape diagram for the equation 2x + 10 = 20
Answer is X=5
Subtract
10 from both sides of the equation
Simplify
Divide both sides of the equation by the same term
and done
Ninety percent of the people who have a particular disease will have a positive result on a given diagnostic test. Ninety percent of the people who do not have the disease will have a negative result on this test. If 5 percent of a certain population has the disease, what percent of that population would test positive for the disease?
Answer: 0.14
Step-by-step explanation:
sehn ullum
can u guess what that means?
Answer:
nope
Step-by-step explanation:
blah blah blah blah
Find the area of the circle.
Answer:
A=346,6 in²
Alternative C
Step-by-step explanation:
Length of circunference:
L=2πR, where r is the radius
Area of circle:
A=πR²
We know that L=66
66=2πR, then:
πR=33in
[tex]R=\frac{33}{\pi }[/tex]
Thus:
[tex]A=\pi (\frac{33}{\pi} )^{2}[/tex]
[tex]A=\frac{1089}{\pi} \\\\A=346,63[/tex]
Find the inverse of the function.
Answer:
The option 'b' is true.
Step-by-step explanation:
Given the expression
[tex]f\left(x\right)=\frac{2}{x+7}[/tex]
A function g is the inverse of the function f if for y=f(x), x=g(y)
[tex]y=\frac{2}{x+7}[/tex]
Replace x with y
[tex]\:x=\frac{2}{y+7}[/tex]
solve for y
[tex]y=\:\:\frac{2}{x}-7[/tex]
Thus,
[tex]f^{-} (x)=\frac{-7x+2}{x}[/tex]
Therefore, option b is true.
A store has a sale for 20 % off. You decide to buy a $15 t-shirt. A) How much money will you save? B) How much money will you spend on the t-shirt?
Answer:
you will save 3 dollars and spend 12 on the shirt
Step-by-step explanation:
20 percent of 15 is 3 dollars. subtract the 3 from 15$ to get your discounted price.
The angles of AABC have the extended ratio of 7:8:15, respectively. Calculate the value for each of the angles A, B,
and C. Remember the angles in a triangle sum to 180 degrees!
Answer:
Step-by-step explanation:
Remark
A B C have to be multiplied by the same something. No matter what they are multiplied by the sum will be 180 degrees.
Equation
Let the angle ratios be multiplied by x
7x + 8x + 15x = 180
30x = 180
x = 180/30
x = 6
Answer
7*6 = 42
8*6 = 48
15*6 = 90
Total 180 as it should
-4(2x+4)=-7x
solve for x
Answer:
x should equal 16
Step-by-step explanation:
Sammy tried to verify the solution by substituting x = 5 back into the original equation. It did not result in a true statement. Which explains why Henry’s solution is incorrect?
Answer:
Step-by-step explanation:
x=5
EASY QUESTION- MERRY XMAS
Answer:
The answer will be B.
Step-by-step explanation:
When the number is with the x, it moves the graph in the horizontal direction, and when the number is NOT with the x, it moves the graph in the vertical direction.
So, since -6 is with the x, it is moving the graph Right 6 units. Changing it to 4 units results in the the graph moving 2 units left from 6 units.
The -1 is NOT with the x, so it moves the graph down 1 unit. Taking out the -1 (so putting a 0) results in the graph moving 1 unit up from -1.
So, the graph translated up 1 unit and left 2 units.
#teamtrees #WAP (Water And Plant)
Answer:
Its B
Step-by-step explanation:
Mike is 5 years older than David. Four times David’s age increased by three years equals three times Mike’s age decreased by two years. Find Mike’s age.
Answer:
15 years
Step-by-step explanation:
Write as an algebraic equation-
D+5=M
4D+3=3M-2
substitute
4D+3=3D+15-2
4D+3=3D+13
subtract 3 and 3D
D=10
Plug in D
10+5=M
M=15
CAN ANYBODY DO THESE
Answer:
1. 44.23077
2. 30%
3. 72
4. 214.2
5. 75%
Step-by-step explanation:
The variable m in slope intercept form represents the y- intercept ? True or false
No.
m represents the slope while b represents the y-intercept.
Answer: False
Step-by-step explanation:
Because the slope-intercept form is y=mx+b and m represents slope.
Alicia borrowed $3000 from a bike at a rate of 12% simple interest per year how much interest did she pay in four years
Answer:
$1440
Step-by-step explanation:
$3000 (12%) = 360
360 x 4 = 1440
Hope this helps!
It cost $2.50 to rent bowling.each game costs $3.25.you have $22. How many games can you bowl
Answer:
6 games
Step-by-step explanation:
Use the equation 2.5+3.25x=22 to solve in which $2.50 is the initial amount to rent for Bowling, $3.25 the amount of game that is played, $22 for what you have, and x in which is the amount of games you can play at the max. Subtract 2.5 on both sides to get to 3.25x = 19.5. Divide 3.25 on both sides to get your final answer as 6 for your x value in which you can play up to 6 games.
Answer:
6 games
Step-by-step explanation:
you do 2.50 - 22 this you divide 3.25 by what you have left
an angle measures 115.4° less than the measure of its supplementary angle what is the measure of each angle
Answer:
32.3° and
147.7°
Step-by-step explanation:
Supplementary angles are angles with the sum of 180°
if one of the angle is 115.4° less than other then
(180 - 115.4) ÷ 2 = 32.3° is the measure of smaller angle and
32.3 + 115.4 = 147.7° is the measure of larger angle
what is 17 + 64 + 124 + (3^2 x 5) - 14 = ?
Answer:
9x⁵ + 191
Step-by-step explanation:
Simplify: 17 + 64 + 124 + 9x⁵ - 14
Collect Like Terms: 9x⁵ + (17 + 64 + 124 - 14)
Simplify: 9x⁵ + 191
Brainliest Please!!?!!!!
- ElizabethKate