Answer:
C) x = -2
Step-by-step explanation:
x = -2 is a vertical line with intersects the x-axis at -2; vertical lines are not functions
After 2014 the sales of new cell phones without cameras began declining. The number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=-30x+240, where x is the number of years after 2014
Answer:
60,000 people
Step-by-step explanation:
Given the number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=-30x+240,
x is the number of years after 2014
We can find the number of people that bought the cell phone in 2020. In year 2020, that will be after 6years
Substitute x = 6 into the expression
y=-30x+240
y=-30(6)+240,=
y = -180 + 240
y = 60
Since y is in thousands, hence the the number of people that have bought the cell phone by 2020 is 60,000 people
900% of what number is 6,030?
900% of is 6,030.
Answer:
6030 is 900% of 670
Step-by-step explanation:
Mark me brainliest, thanks have a wonderful day!!
is 8x+2x equivalent to 8+2x?
Answer:
As long as I know if it's not the same then its not equal, because if you solve it they will give you different answers.
I NEED HELP I NEED TO PASS THIS
Answer:
A. the area of the large pond is 16 times the area of the small pond
Step-by-step explanation:
let's say 4 is the radius of the small circle, which means the area is 50.26548
if the large circle is 4 times the small circle, that means it's radius is 16 which means the area is 804.24772
so if you divide the big circle area by the small circle area:
804.24772/50.26548
it gives you 16.00000079577 which is rounded to 16
therefore, the bigger circle is 16 times bigger than the smaller circle
what is y=-x-4 if x=-2
Answer:
-2
Step-by-step explanation:
The answer is -2
Explanation:
First of all we need to identify the problem.
Y= -X-4
We can tell already from this that the X is going to be negative.
If X=-2
Now we can change the problem to:
Y= -2-4
And can even change it to
-2-4
Well the way I learned it
A negative number minus a negative number is a negative number
A positive number minus a positive number is a positive number
Simple Right?
So what's a negative number minus a positive number?
Its a negative number!
So the answer is -6
17 more than twice Chrissy's height
The required expression is 2h+17 where h is the height of Chrissy.
What are expressions?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given is a statement, 17 more than twice Chrissy's height, we are asked to convert this statement into an expression,
Let Chrissy's height be h,
Then,
2h+17
Hence, the required expression is 2h+17 where h is the height of Chrissy.
Learn more about expressions, click;
https://brainly.com/question/14083225
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Select all of the following answer choices that are reciprocals of each other.
A. 2 and 1/2
B. -5 and 5
C. -7 and -1/7
D. 3 and 4
How many solutions does the system have? 2x+3y=-6 3x-4y=-12. A) exactly one solution b) no solution c) infinity many solutions
Answer:
a.
Step-by-step explanation:
by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17
A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe
Answer:
3:8
Step-by-step explanation: :)
Answer:
3 eggs : 8 cups of flour
=3:8
is depth the same thing as height?
Answer:
Depth is the downward direction actually and height is upward direction got it?
Step-by-step explanation:
Answer:
No height is like a positive number while depth is like a negative number
can someone check my answer? i got 600.
Answer:
Volume = 120 cubic cm
Step-by-step explanation:
We would apply the formula for determining the volume of a square bases pyramid which is expressed as
Volume = 1/3 x base area x height
From the diagram,
length of square base = 6 cm
The base area = 6^2 = 36
height = 10
Thus,
Volume = 1/3 x 3/6 x 10
Volume = 120 cubic cm
I hope this help you! :)
Iki kişiden biri merdivenin 8. basamağında diğeri ise 20. ba-
samağında iken alttaki her saniyede 5 basamak, yukarıdaki
ise her saniyede 3 basamak yukan çıkıyor.
Kaçıncı basamakta yan yana gelirler?
Answer:
Hey bu dosnt mantıklı, İngilizce formatı var mı? anlayabilirsem yardım edebilirim.
Teşekkürler!!
Step-by-step explanation:
Find the values of x and y.
Answer:
Step-by-step explanation:
y = 5
All sides measure the same So 8y= 40 y = 5
x = 30 degrees
The straight line of 40+40 is a straigth angle of 180 Each angle of equilateral triangle is 60 degrees.So its supplementary is 120.The other 2 angles need to add to 60 (30 each) to sum 180 in a triangle
Convert 60% into a decimal and a Fraction(Simplify)
Decimal
Fraction
Answer:
decimal: .6
fraction: 3/5
solve for x, Round to the nearest thenth. x,9.2,16.5
15/16 as a decimal rounded to the nearest tenth
Answer:
0.9
Step-by-step explanation:
[tex]\frac{15}{16}=0.9375\approx0.9[/tex]
9
Find mZWVT
T
35x-2
U
93 °
W
V
7x + 5
mZWVT =
Answer:
40
Step-by-step explanation:
[tex] \frac{35x - 2 - 93}{2} = 7x + 5[/tex]
[tex] \frac{35x - 95}{2 } = 7x + 5[/tex]
[tex]17.5x - 47.5 = 7x + 5[/tex]
[tex]17.5x = 7x + 52.5[/tex]
[tex]10.5x = 52.5[/tex]
[tex]x = 5[/tex]
Plug 5 in for 7x+5.
[tex]7(5) + 5 = 40[/tex]
HELP 25 POINTS BRAINLIEST EASY
Answer: the third one
Step-by-step explanation:
in a school the number of girls exceeds the number of boys by 15%. Find the ratio of the numbers of boys to girls?
Answer:
2 : 3 is the correct answer
Step-by-step explanation:
happy to help :)
A line with a slope of 5 passes through the point (1,9). What is its equation in slope-intercept form? Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
y = 5x + 4
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 = 5, then
y = 5x + c ← is the partial equation
To find c substitute (1, 9) into the partial equation
9 = 5 + c ⇒ c = 9 - 5 = 4
y = 5x + 4 ← equation of line
Evaluate g(10) if g(x)=12x−4.
Answer:
116
Step-by-step explanation:
plug in the 10 in the x values to get 12(10)-4 which is 116.
Between which two points is 95 located on the number line below?
Answer: A
Step-by-step explanation: The square root of 9 is 9.7 so it would be between 5 and 10
Answer:
A. W and X
Step-by-step explanation:
√95
9.74679434481
This number is close to 10.
5 and 15 are on the sides of 10.
X(10) is between W(5) and Y(15).
How much wood do you need to build a frame around a picture that is 8 inches tall and 10 inches wide?
Answer:
36 inches of wood
Step-by-step explanation:
8+8+10+10= 36
What is the slope of the line that passes through the points (-2, -5) and (6, 7)? A.3/2 B.2/3 C.-3/2 D.-2/3
Answer:
3/2
Step-by-step explanation:
y2 - y1/ x2 - x1
7 -(-5) / 6 - (-2)
12/ 8
3/2
I have alot of questions and I need help with a practice quiz
ok imma help u just it should not be chem
Negative ten is no less than two times a number plus fourteen.
Answer:
i this like true or false,if so its true
:)
Step-by-step explanation:
If x = 2 and y=5, what is the value of the expression below?
7x + y2
a. 24
b. 39
c. 82
d. 97
Suppose the population of a town is 17,400 and is growing 2% each year.
Predict the population after 9 years.
Answer: 20,532
Step-by-step explanation:
17,400(.02)=348
348(9)=3132
17,400+3132=20,532
Answer:
Step-by-step explanation:
This is an exponential growth function of the form:
[tex]y=ab^x[/tex] where a is the initial population and b is the growth rate. This could also be written as
[tex]y=a(1+r)^x[/tex] which is a bit more accurate. We'll use that one. r is the percent growth: 2% for us.
Filling in the formula:
[tex]y=17400(1+.02)^x[/tex] and then simplifying:
[tex]y=17400(1.02)^x[/tex]
That's the model for this population. Filling in any number of years for x will give you the population y. Our time is 9 years:
[tex]y=17400(1.02)^9[/tex]
Take care of the exponents first, giving us:
[tex]y=17400(1.195092569)[/tex] and then multiply to get
y = 20,794.6 or 20,794 people (since you can't have 6/10 of a person)
A model train is inches long. Each car in this train is inches in length. How many cars are in the train?
Answer:
5
Step-by-step explanation:
help out please !
Select all of the quadratic expressions in vertex form.
A (2+4)^2– 3
B (- 5)^2+ 2
C x^2+ 2x + 5
D x (x+2)
E (2+4)^2
Answer:
A C E
Step-by-step explanation: