f(g(x))
√9(x+7)√9x+63The smallest no for the domain is -63 as square root of a negative no not possible.
For -63
√-63+630Answer:
x = -7
Step-by-step explanation:
[tex]\begin{aligned}f \circ g=f[g(x)] & = \sqrt{9(x+7)}\\& = \sqrt{9}\sqrt{x+7}\\ & = 3\sqrt{x+7}\end{aligned}[/tex]
Domain = input values (x-values)
As we cannot square root a negative number, the domain is:
x ≥ -7 → [-7, ∞)
Therefore, the smallest number that is in the domain of [tex]f \circ g[/tex] is -7
can someone please explain how to factor a polynomial. {will mark as brainliest}
To factorize a polynomial you need to find the zeros, and then you can write the polynomial as a product of bynomials.
How to factor a polynomial?
For a polynomial of the form:
[tex]p(x) = A_n*x^n + A_{n-1}*x^{n-1} + ... + A_1*x + A_0[/tex]
We define the zeros as the values of x such that:
p(x) = 0.
On the above case, the degree of the polynomial is n (the maximum exponent). Then the number of zeros of the polynomial is n (same as the degree).
Once we know the n zeros, we can factorize the polynomial as:
[tex]p(x) = A_n*(x - x_1)*(x - x_2)*...*(x - x_n)[/tex]
For example, for the polynomial:
[tex]p(x) = 2x^2 - 8[/tex]
The two zeros are x = 2 and x = -2, then it can be rewriten as:
[tex]p(x) = 2*(x + 2)*(x - 2)[/tex]
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Please help me with this
Answer:
10 percent
Step-by-step explanation:
look closl
it's 10 percent ...................... 10%
What is the value of the expression 9+4n-1 when n = 3?
Student attendance at football games
sampling method
results of survey
collin surveys 63 students by randomly choosing names from the school
69% attend football games.
directory.
karl surveys 30 students that were sitting near him during lunch. 87% attend football games.
collin's method is (select) v than karl's method. karl's method picks students who
(select)
Collin's sampling method will better represent the entire population.
Missing part of the questionDetermine which sampling method will better represent the entire population.
How to determine the better method?From the question, we understand the Collin selected random names from the school directory.
While Karl surveyed only the students sitting close to him.
Karl's method is biased because students sitting far from him do not have a chance of being surveyed.
Hence, Collin's sampling method will better represent the entire population.
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What is the distance in units between (15,-17) and (-20,-5)
Answer:
41.34
Step-by-step explanation:
We can use the Pythagorean theorem to solve for the distance. First we will create an imaginary triangle with the leg lengths being the x distance and y distance between the 2 points and the hypotenuse being the distance between the 2 points.
x distance =
[tex]15 - (-20) = 35[/tex]
y distance =
[tex] |-17-5| = | - 22| = 22[/tex]
We can now use the Pythagorean theorem (a²+b²=c²) with our imaginary triangle
xdistance²+ydistance²=distance²
35²+22²=distance²
1709=distance²
[tex] \sqrt{1709} = distance[/tex]
In decimal form the distance would be around 41.34.
That is the answer
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Coach palmer makes 9 quarts of iced tea. she fills 12 bottles with 2 cups of iced tea each to share with her team. how many quarts of iced tea are left?
The amount of iced tea left in quartz is 3 quartz
How to find amount of tea left in quartz?
The coach makes 9 quarts of iced tea.
she fills 12 bottles with 2 cups of iced tea each to share with her team.
1 quartz = 4 cups
Therefore, she shared the following amount of tea in cups:
amount shared = 12 × 2 = 24 cups
Then, let's convert to quartz,
4 cups = 1 quartz
24 cups = ?
amount shared in quartz = 24 / 4 = 6 quarts
Therefore,
the amount of ice tea left = 9 - 6 = 3 quartz
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(x + 8/3)^2 + y^2 = 1 What is the center of the circle? what is the radius?
(x+8/3)²+y²=1
(x+8/3)²+y²+0²+2×0y=1
(x+8/3)²+(y+0)²=(V1)²
->center: C(8/3,0)
-> radius: V1
jamie is shopping for sports equipment. he purchases equipment worth 202 bout pays only 168. What is the discount amount?
Answer:
Discount amount = 34
Step-by-step explanation:
Discount amount = 202 - 168 = 34
The formula for the volume, V, of a cone having the radius, r, and the height, h, is shown below.
Write the formula to calculate the height, h.
The formula for calculating the height is h = 3V/πr²
Subject of the formulaThe formula given is the formula for calculating the volume of a cone
V = 1/3πr²h
where
h is the height
r is the radius
Make h the subject of the formula
Cross multiply
3V = πr²h
Divide both sides by πr²
3V/πr² = πr²h/πr²
h = 3V/πr²
Hence the formula for calculating the height is h = 3V/πr²
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Determine if the following polygons are similar.
Problem 1
Triangle ABE is similar to triangle DCE. This is because we have two pairs of congruent corresponding angles.
angle AEB = angle DEC (vertical angles)angle ABE = angle DCE (alternate interior angles)Refer to the angle angle (AA) similarity theorem for more info.
-------------------
For the other pair of triangles, we don't have enough info to determine if they are similar or not. We have info about one pair of sides, and a pair of angles, but that's about it.
We need to know if JL is proportional to MO, and in the same ratio as KL & NO are, if we wanted to use the side angle side (SAS) similarity theorem.
-------------------
Summary:Triangle ABE is similar to triangle DCE by the AA (angle angle) similarity theoremWe don't have enough info to know if triangles JKL and MNO are similar or not.============================================================
Problem 2
Divide the corresponding sides
LN/PO = 30/15 = 2LN/OQ= 26/13 = 2ML/QP = 26/13 = 2We see the three ratios are equal to the same value (2) and that proves the triangles LNM and POQ are similar by the SSS (side side side) similarity theorem.
-------------------
Like before, we'll divide the corresponding sides
1st Rectangle: horizontal/vertical = 10/4 = 2.52ndRectangle: horizontal/vertical = 3/8 = 0.375We don't have a match. Let's try rotating the second rectangle so that the side '8' is horizontal, and the side '3' is vertical
1st Rectangle: horizontal/vertical = 10/4 = 2.52nd Rectangle: horizontal/vertical = 8/3 = 2.67 approximatelyWe don't have a match here either. There are other approaches we could take, but basically the two rectangles are not similar.
-------------------
Summary:Triangles LNM and POQ are similar by the SSS (side side side) similarity theorem.The rectangles are not similar.1. You have a fair coin, flipping the coin has a 50% chance of showing a head. What is the probability of getting all heads when flip 10 times.
Answer:
1 / 1024
Step-by-step explanation:
Each flipping has 1/2 chance
In ten flippings:
[tex](\frac{1}{2} )^{10} =\frac{1^{10} }{2^{10} } =\frac{1}{1024}[/tex]
Hope this helps
WILL GIVE BRAINLIEST, ANSWER FAST PLEASE
Answer:
[tex]2( \frac{2}{5} x + 2) = \frac{4}{5} x + 4[/tex]
Step-by-step explanation:
Use the distributive property.
2y = x + 10
3y = 3x + 15
2y=x+10
3y=3x+15
2y-10=x
3y=3(2y-10)+15
2y-10=x
3y=6y-30+15
2y-10=x
0=3y+15
2y-10=x
3y=15
x=2y-10
y=5
2y=x+10
2×5=x+10
x=0
x=0, y=5
Which of the following is a solution made up by x + y=27 and y=2x?
Answer:
4. x = 9 and y = 18
Step-by-step explanation:
Hello there!
When given such a problem we have to methods to handle this:
substitution methodelimination method.On this problem, let's limit ourself to substitution method;
x + y = 27 ..................... eq.1
y = 2x ........................ eq.2
Eq.2 is already manipulated. Substitute it into eq.1
x + y = 27
=> x + 2x = 27
3x = 27
x = 9
Substitute x into eq.2
y = 2 (9)
= 18
In terms of x and y;
(x, y) => (9, 18)
I hope this helps you.
Have a nice time and nice studies.
Johnny is a very picky eater, so he likes to use a lot of condiments. He has ketchup, salt, pepper, and shredded cheese at his disposal. His mother tells him he may only make two additions to his meal (i.e., he can add condiments only twice, regardless of whether or not he already used them). How many different ways can Johnny improve his meal?
10
6
12
16
Answer:
see the attachment photo!
The different ways Johnny can improve his meal is 16
How many ways k things out of m different things (m ≥ k) can be chosen if order of the chosen things doesn't matter?We can use combinations for this case,
Total number of distinguishable things is m.
Out of those m things, k things are to be chosen such that their order doesn't matter.
This can be done in total of
[tex]^mC_k = \dfrac{m!}{k! \times (m-k)!}[/tex] ways.
If the order matters, then each of those choice of k distinct items would be permuted k! times.
So, total number of choices in that case would be:
[tex]^mP_k = k! \times ^mC_k = k! \times \dfrac{m!}{k! \times (m-k)!} = \dfrac{m!}{ (m-k)!}\\\\^mP_k = \dfrac{m!}{ (m-k)!}[/tex]
This is called permutation of k items chosen out of m items (all distinct).
Given;
Mother tells him he may only make two additions to his meal
First addition; 1C4
Second addition; 1C4
1C4=4
=4x4
=16
Therefore, by combinations and permutations their will be 16ways
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Find Median of 10,12,14 and 16
Step-by-step explanation:
the median is the value, where half of the other values is smaller (or equal), and the other half bigger (or equal).
with an even number of data points that is not directly possible to find.
in this case the 2 middle values are taken and their mean value is the median.
in our case, the 2 middle values are 12 and 14.
their mean value is
(12+14)/2 = 26/2 = 13
so,
13 is the median (even though if is not a data point itself).
Translate the shape A three squares right and three squares up.What are the coordinates of the vertices of the image?
Answer:
see explanation
Step-by-step explanation:
a translation of 3 squares right means add 3 to the x- coordinate
a translation of 3 squares up means add 3 to the y- coordinate
then
(1, 1 ) → (1 + 3, 1 + 3 ) → (4, 4 )
(3, 1 ) → (3 + 3, 1 + 3 ) → (6, 4 )
(1, 4 ) → (1 + 3, 4 + 3 ) → (4, 7 )
what are the least common denominators for 4 and 6
garcia is modeling the equation 5x
Find the value of x and y from the following figure.
Answer:
X=70
Step-by-step explanation:
aw we can for a triangle, where the 2 angles are complementary from the outer ones, so the 2 angles are 50, and 60
so the third one will be 70
What is the median of the following data set?
{6, 3, 9, 1, 7}
A. 3
B. 6
C. 8
D. 9
Triangle DEF, with vertices D(9,-8), E(8,-3), and F(2,-5), is drawn inside a rectangle,
as shown below.
What is the area, in square units, of triangle DEF?
[
Answer: A=?
units²
The area of the triangle DEF is 2 square units
How to determine the area?The given parameters are:
D(9,-8), E(8,-3), and F(2,-5),
The area of the triangle is calculated using:
Area = 0.5|x1 * (y2 -y3) + x2 * (y1 -y3) + x3 * (y2 -y1) |
This gives
Area = 0.5|9 * (-3 + 5) + 8 * (-8 + 5) + 2 * (-3 + 8) |
Evaluate
Area = 0.5|4|
Expand
Area = 2
Hence, the area of the triangle DEF is 2 square units
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Make this into an expression. the product of four and a number, divided by seven
Answer:
4x ÷ 7
Step-by-step explanation:
the product of 4 and a number (x)
would be 4x. Then you would divide by 7.
Please help i dont know what to do :(
In AGHI, ZG=590 Zl=900, and h=67m.
What is the length off-to the nearest metre?t9i& t)
If f(x) = x² + 2, which interval describes the range of this function?
(1) (-∞, ∞)
(2) [0, ∞)
(3) [2, ∞)
(4) (-∞ ,2]
Anna makes a pot of the soup. She is using a ¼ cup measuring cup. How many times will Anna need to fill the measuring cup to measure ⅞ cup of turnips? Show your work.
Answer:
2/7 ?
Step-by-step explanation:
Because 1/4 divided by 7/8th is 1/4. Hope this works
What is the sum of -26 and -37?
Answer:
-66
Step-by-step explanation:
add the numbers
-26 -37 = -66
[tex] - 26 - 37 = - 63[/tex]
Whenever the sign of the numbers is same , add them but don't forget the negative sign.
Please give brainliest
three consecutive odd integers have a sum of 51. what is the smallest integer
Answer:
15
Step-by-step explanation:
Let 2n+1 be the first odd integer.
Therefore, the consecutive odd integers will be 2n+3 and 2n+5
If the sum of the consecutive odd integers is 51 then:
⇒ 2n + 1 + 2n + 3 + 2n + 5 = 51
⇒ 6n + 9 = 51
⇒ 6n = 42
⇒ n = 7
To find the values of the integers, substitute the found value of n into the expressions:
First integer: 2(7) + 1 = 15Second integer: 2(7) + 3 = 17Third integer: 2(7) + 5 = 19Therefore, the three consecutive odd integers that sum to 51 are 15, 17 and 19. The smallest of which is 15.
Find the x-intercepts for the parabola defined
by this equation:
y = x² + 3x - 4
Write your answer as two ordered pairs
Answer:
(-4,1)
Step-by-step explanation:
Factoring, Guess and check.
Considering the probability you found in part D, which option makes more sense for Jake to choose? Explain your reasoning.
The probability that can be chosen by Jake will be 33.5%.
How to calculate the probability?The area of the whole dartboard will be:
= πr²
where r will be:
= 3 + (4 × 4)
= 3 + 16
= 19
Area = π(19)² = 361π²
The area of 30, 40, and 50 points will be:
= π × [3 + (2 × 4)]²
= 121π²
The probability will be:
= (361π - 121π) × 100
= 33.5%
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