Answer:
(d) opens the same; wider
Step-by-step explanation:
Multiplying a function by a constant has the effect of vertically scaling the graph of the function by a factor equal to that constant.
__
Here, you're multiplying by 2/3, so each y-value is 2/3 of its previous distance from the x-axis. The effect on the graph of a parabola is to make it "flatter", hence wider in appearance. This does not change the direction in which it opens.
The attachment shows an example.
An isosceles right triangle has legs of equal length. If the
hypotenuse is 18 centimeters long, find the length of each leg.
Step-by-step explanation:
hope you have a great day going so far today
100 Points!!!! Please Show Steps!
1. Given f(x)=x^2 - 2 and g(x) =4x + 1 Find
a. f(g(x))
b. g(f(x))
Go from right to left in such function questions
a. f(g(x))
⇒ f(4x + 1)
⇒ (4x + 1)² - 2
⇒ 16x² + 8x + 1 - 2
⇒ 16x² + 8x - 1
b. g(f(x))
⇒ g(x² - 2)
⇒ 4(x² - 2) + 1
⇒ 4x² - 7
Answer:
[tex]f[g(x)]=16x^2+8x-1[/tex]
[tex]g[f(x)]=4x^2-7[/tex]
Step-by-step explanation:
Given functions:
[tex]f(x)=x^2 - 2[/tex]
[tex]g(x) =4x + 1[/tex]
[tex]f[g(x)][/tex] means to substitute g(x) in place of x in f(x):
[tex]\begin{aligned}\implies f[g(x)] & =[g(x)]^2-2\\ & =(4x+1)^2-2\\ & = (4x+1)(4x+1)-2\\ & = 16x^2+8x+1-2\\ & = 16x^2+8x-1\end{aligned}[/tex]
[tex]g[f(x)][/tex] means to substitute f(x) in place of x in g(x):
[tex]\begin{aligned}\implies g[f(x)] & =4[f(x)]+1\\ & = 4(x^2-2)+1\\ & = 4x^2-8+1\\ & = 4x^2-7\end{aligned}[/tex]
Mariah needs to randomly select one of three groups of students to make their presentation first. Which simulation tools could she use in this
situation?
a full standard deck of cards
a spinner divided evenly into four sections, with each section a different color
a six-sided number cube
0 a bag containing 12 chips in three different colors, with four of each color
two coins
The simulation tool to use is (d) a bag containing 12 chips in three different colors, with four of each color
How to determine the simulation tool?From the question, we have the following parameter:
Group, n = 3
The probability of selecting a group is:
p = 1/3
This means that the simulation tool to select must have a probability value of 1/3
From the question, the option (d) has a probability of 1/3
This is so because, we have:
Chips = 12Colors = 3Chip of same color = 4So, the probability of selecting each color is 4/12 or 1/3
Hence, the simulation tool to use is (d)
Read more about probability at:
https://brainly.com/question/251701
Answer:
a bag containing 12 chips in three different colors, with four of each color
and i think
a six-sided number cube
Step-by-step explanation:
plato?
If 32 superscript 2 c baseline = 8 superscript c 7, what is the value of c?
If 32 superscript 2 c baseline = 8 superscript c 7 is the given expression then the value of c is 3.
What are exponents?The exponents of a number are defined as the representation of a number that shows how many times a number is multiplied by itself.
The given equation is 32 superscript 2 c baseline = 8 superscript c 7
[tex]32^{2c} = 8^{c+7}[/tex]
Write the expression in exponents form as
[tex](2^5)^{2c} = (2^3)^{c+7}[/tex]
[tex](2)^{10c} = (2)^{3c+21}[/tex]
Comparing the base,
10c = 3c + 21
10c - 3c = 21
7c = 21
c = 21/ 7
c = 3
Therefore, the value of c is 3.
Learn more about exponents;
https://brainly.com/question/5497425
5x + 3y -5.70 2x+10y+3.60
Answer:
I`m not really sure what i`s asking to solve but here`s my best answer.
5x + 3 - 5.70 = 2x + 10y + 3.60
3x + 3 - 5.70 = 10y + 3.60
3x + 3 = 10y + 9.30
3x = 10y + 6.30
^^^That`s the most it can be simplified without any new fractions or decimals
3x = 10y + 6.30
x = 3.33y + 2.10
^^^That`s the most it can be simplified to solve for x.
help me PLEASEE i really don’t understand
Given the points (0, 5), (1, 7), and (-2, -5), find the equation of the quadratic polynomial that contains
these points. Show your work.
Answer:
y=-x²+3x+5.
Step-by-step explanation:
1) the common view of the quadratic function is y=ax²+bx+c, where a, b and c - numbers;
2) according to the equation above, it needed to substitute the given coordinates and to make up the system of the equations:
point (0;5): c=5;
poit(1;7): a+b+5=7 ('c' is already known, 5);
point(-2;-5): 4a-2b+5=-5 (c=5);
3) to solve the system:
[tex]\left \{ {{a+b+5=7} \atop {4a-2b+5=-5}} \right. \ = > \ \left \{ {{a=-1} \atop {b=3}} \right.[/tex]
4) finally, if a=-1, b=3 and c=5, then
y=-x²+3x+5.
Find the new side lengths if the scale factor is 2/5. 35 inches 15 iches NEED ANSWER ASAP PLEASEEEE
Answer:
l = 14 inches , b = 6 inches
Step-by-step explanation:
multiply length l and breadth b by the scale factor , then
new length = [tex]\frac{2}{5}[/tex] × 35 = 2 × 7 = 14 inches
new breadth = [tex]\frac{2}{5}[/tex] × 15 = 2 × 3 = 6 imches
area = 756 cm^2
h = 18 cm
a = 39 cm
b = ?
Answer:
given,
area= 756cm^2
h = 18cm
a = 39cm
then,
area = (a+b)h/2
756 = (39+b)18/2
756= 351+9b
756-351= 9b
405 = 9b
405/9= b
b = 45cm
You are standing next to a really big circular lake. You want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! You decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400π m400, pi, start text, space, m, end text.
What is the diameter of the lake?
Answer:
diameter = 400 m
Step-by-step explanation:
Perimeter of circle = pi * d
400 pi = pi * d
d = 400 meters
An exponential function and a linear function are graphed below.
Over which interval does the growth rate of the exponential function continue to exceed the growth rate of the linear function?
Answer:
x = 1.79 to x = 3
Step-by-step explanation:
I think this is correct because the linear function grows at a constant rate so the point where the exponential function's line starts going up faster means that the growth rate is increasing. At the point (1.79,7.17) is when both lines intersect but the exponential function is growing at a faster rate than the linear function.
Answer:
x = 1.79 to x = 3
Step-by-step explanation:
211,207,203,...
Find the 38th term.
Answer:
63
Step-by-step explanation:
Using the formula attached, we can setup the equation:
[tex]211 + (38 - 1) - 4[/tex]
Then using a calculator you can solve
The required 38th term of the given arithmetic sequence is 63.
What is arithmetic progression?Arithmetic progression is the series of numbers that have common differences between adjacent values
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
here,
Given sequence,
211,207,203,...
First term, a = 211
Common difference, d = 207 - 211 = -4
Now.
Nth term of an arithmetic progression,
Nth term = a + (n -1)d
Nth term of given sequence
Nth term = 211 - (n - 1)4
Now, put n = 38
38th term = 211 - (38 - 1)4
38th term = 211 - [37](4)
38th term = 211 - 148 = 63
Thus, the required 38th term of the given arithmetic sequence is 63.
Learn more about arithmetic progression here: https://brainly.com/question/20334860
#SPJ2
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Need help with this
Answer:
6
Step-by-step explanation:
PLS GIVE ME BRAINILIEST!
60 points) khan academy geometry practice. Need help i in any way cannot miss this question please help!!
Please help guys much love
Step-by-step explanation:
1) Ans 3
2) Ans 6
3) Ans 4
4) Ans 1/5
5) Ans 1/23
A new washing machine is purchase by the hamilton family it cost 324.50 how much will the washing machine cost after 6% sales tax is
applied
Answer:
343.97
Step-by-step explanation:
price of vending machine is 100% = 324.50
100% + 6% sales tax = 106%=1.06
324.50*1.06
343.97
A circle has a circumference of 26 millimeters. What is the circle's
radius? Use 3.14 for pi and round your answer to the nearest tenth
PLS HELP!!! No links pls and ty <333
Answer:
22.5
Step-by-step explanation:
Radius = Circumference/(2*PI)
What is the simplified expression for:
Simplify the expression below: 3(7x) – 2(4 – x)
A. 13 – 2x
B. 13 + 2x
C. 23x – 8
D. 20x – 8
Answer:
C
Step-by-step explanation:
3(7x)=21x
-2(4-x)= -8+2x
21x-8+2x=23x-8
i just need the answer and ill do the labels
By the vertical angle theorem, the two angles '5y + 12' and '82' are equal
⇒ [tex]5y + 12 = 82[/tex]
[tex]5y = 70\\y = 14[/tex]
Thus x = 14
Hope that helps!
p.s. Definition of Vertical Angle Theorem: angles that are opposite each other and formed by two intersecting straight lines, are congruent
p.s. Diagram for what is Vertical Angle Theorem:
Answer:
y = 14
Step-by-step explanation:
82° = (5y + 12)°
5y = 82 - 12
5y = 70
y = 14
{calculate carefully{
(3+1)(6x9)-23
Using Pemdas explain and answer this question
Answer:
193
Step-by-step explanation:
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
3+1 can be simplified to 4
6 times 9 is 54
(4)(54)-23
216-23
193
If the simple interest on $5,000 for 6 years is 1,200 then what is the interest rate?
Answer:
4%
Step-by-step explanation:
You can use the formula below to find the simple interest rate.
Simple interest = P r t / 100
Here,
P ⇒ Principle ⇒ $ 5000
r ⇒ rate ⇒ ??
t ⇒ time ⇒ 6 years
simple interest ⇒ $ 1200
Let us find it now.
Simple interest = P r t / 100
1200 = 5000 × r × 6 / 100
1200 × 100 = 30000r
120000 = 30000 r
Divide both sides by r.
4 = r
Therefore, the interest rate is 4%
What is the slope of a line that is parallel to the line y = 3/4x + 2?
-4/3
-3/4
3/4
4:3
Answer: The Slope Is 3/4
Step-by-step explanation:
y = 3/4x + 2
This is given in slope intercept form y = mx+b where m is the slope
Parallel lines have the same slope
The slope is 3/4y = 3/4x + 2
Answer:
x is - 7
Step-by-step explanation:
as you do 4+3=7 then there is a - sign in front of itHelp pls!!! No links pls and ty <33
A circle has a circumference of 51 centimeters. What is the circle's
diameter? Use 3.14 for pi and round your answer to the nearest tenth
Answer:
16.2
Step-by-step explanation:
just divide the circumference by 3.14
Answer:
diameter= 16.2338
Step-by-step explanation:
D = C/π
c means CircumferenceD means diameterπ means pi=> D = 51/3.14
D = 16.2338
D = 16.2
What is the missing value (-15)+18=
Answer:
3
Step-by-step explanation:
(-15) + 18 = 3
We can check our answers by adding 15 to 3 when doing inverse operations.
Answer:
3
Step-by-step explanation:
-15 + 18 = 3
Cos²(90° -X).tan(180°-X).cos(180°+X)/sin(180°-X)
Recall some identities:
tan(x) = sin(x) / cos(x)
cos(x + y) = cos(x) cos(y) - sin(x) sin(y)
cos(x - y) = cos(x) cos(y) + sin(x) sin(y)
sin(x - y) = sin(x) cos(y) - cos(x) sin(y)
This means we have
• cos²(90° - x) = [cos(90°) cos(x) + sin(90°) sin(x)]²
… = sin²(x)
• tan(180° - x) = sin(180° - x) / cos(180° - x)
… = [sin(180°) cos(x) - cos(180°) sin(x)] / [cos(180°) cos(x) + sin(180°) sin(x)]
… = sin(x) / (-cos(x))
… = -tan(x)
(and we also get sin(180° - x) = sin(x))
• cos(180° + x) = cos(180°) cos(x) - sin(180°) sin(x)
… = -cos(x)
So, the given expression reduces to
sin²(x) (-tan(x)) (-cos(x)) / sin(x) = sin²(x)
since tan(x) and cos(x)/sin(x) = 1/tan(x) will cancel.
Find the number to add to x^2 + 14x to make it a perfect square trinomial. Write that trinomial as the square of a binomial.
Answer:
Option 2
Step-by-step explanation:
Divide the co efficient of 'x' by 2 and the square the result.
14 ÷2 = 7
7² = 49
To make it a perfect trinomial, 49 should be added
x² +14x + 49 = x² + 2*x *7 + 7² {Compare with a²+ 2ab + b² = (a +b)²}
= (x +7)²
Which statement about the simplified binomial expansion of (a – b)n, where n is a positive integer, is true? all terms of the expansion are positive. all terms in the expansion are negative. the first term in the expansion is positive. the first term in the expansion is negative.
If the value of n is a positive integer then the first term is always positive. Then the correct option is C.
What is binomial expansion?The binomial is a polynomial of two-term only. For example, x + 5 where x and 5 are the two separate terms.
The binomial expression is given (a – b)ⁿ.
If the value of the n is positive then the condition will be
There is a negative sign between a and b so it is impossible to have all the terms positive as well as negative.
But the first term will always be positive.
More about the binomial expansion link is given below.
https://brainly.com/question/12249986
Answer:c
Step-by-step explanation:
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HELP ME WITH THIS NOOOOWWWW
Answer:
A
Step-by-step explanation:
BD = 12
BC = 12/2 => 6
using Pythagoras theorem
AB² = AC² + BC²
AB² = 3² + 6²
AB² = 9 + 36
AB² = 45
AB = √45 (A)
Geometry math work! help needed please.
Answer:
I decided to use the actual formula this time and got 25.7
Step-by-step explanation:
first we find the length of the arc of bca
360-65
so its 295
then after I use the arc length formula which is
x/360 times 2(pie)r
295/360 times 2(pie)5
295/360 times 31.4159
9267.6983/360 (I multplied 295 and 31.4159)
Then we divide and get
25.743