Answer:
-5
Step-by-step explanation:
Which polynomial is in standard form?
Answer:
B
Step-by-step explanation:
Standard form is just descending powers.
Highest power in the polynomial is 5,
Second highest is 2,
Third Highest is 1 (x^1 = 9x)
Lowest is x^0 (the 12 is actually 12*x^0 = 12*1)
:-)
The points A, B, C and D lie on a circle. CDE is a straight line. BA=BD, CB=CD, Angle ABD =32 degrees Work out the size of angle ADE. You must give a reason for each stage of working.
Answer:
[tex]\angle ADE =[/tex] [tex]69^\circ[/tex]
Step-by-step explanation:
Given:
[tex]\angle ABD = 32^\circ[/tex]
BA = BD
CB = CD
In [tex]\triangle ABD:[/tex]
BA = BD
We know that in a triangle, angles opposite to equal sides will also be equal.
[tex]\Rightarrow \angle BAD = \angle BDA[/tex]
We know that sum of internal angles of a triangle is equal to [tex]180^\circ[/tex]
[tex]\angle BAD + \angle BDA +\angle ABD=180^\circ\\\Rightarrow \angle BAD + \angle BDA +32=180\\\Rightarrow \angle BAD + \angle BDA = 180 -32\\\Rightarrow \angle BAD + \angle BDA = 148\\\Rightarrow \angle BAD = \angle BDA = \dfrac{148}{2} = 74^\circ[/tex]
Quadrilateral ABCD is cyclic so, sum of opposite angles is equal to [tex]180^\circ[/tex].
[tex]\angle BAD + \angle BCD = 180^\circ\\\Rightarrow 74 + \angle BCD = 180\\\Rightarrow \angle BCD = 180-74 = 106^\circ[/tex]
In [tex]\triangle BCD:[/tex]
BC = CD
We know that in a triangle, angles opposite to equal sides will also be equal.
[tex]\Rightarrow \angle DBC = \angle CDB[/tex]
We know that sum of internal angles of a triangle is equal to [tex]180^\circ[/tex]
[tex]\angle DBC + \angle BCD +\angle CDB=180^\circ\\\Rightarrow \angle DBC + 106 +\angle CDB=180\\\Rightarrow \angle DBC +\angle CDB=180 - 106\\\Rightarrow \angle DBC =\angle CDB=\dfrac{74}{2} = 37^\circ[/tex]
It is given that the line CDE is a straight line, so the sum of angles on one side of point D is [tex]180^\circ[/tex].
[tex]\angle CDB + \angle BDA +\angle ADE = 180^\circ\\\text{Putting values of } \angle CDB \text{ and }\angle BDA:\\\Rightarrow 37 + 74 + \angle ADE = 180\\\Rightarrow \angle ADE = 180 -111\\\Rightarrow \angle ADE = 69^\circ[/tex]
So, the answer is [tex]\angle ADE =[/tex] [tex]69^\circ[/tex]
The size of ∠ADE of the cyclic quadrilateral is;
∠ADE = 53°
We are given;
BA = BD
CB = CD
∠ABD = 32°
Now, ΔABD is an isosceles triangle and since sum of angles in a triangle is 180°, then;
∠ABD + ∠BAD + ∠BDA = 180°
∠BAD + ∠BDA = 180 - 32
∠BAD + ∠BDA = 148°
Since isosceles, then;
∠BAD = ∠BDA = 148/2
∠BAD = ∠BDA = 74°
Now, in cyclic quadrilaterals, opposite angles are supplementary and as such add up to 180°. Quadrilateral ABCD is cyclic and Thus;
∠BAD + ∠BCD = 180°
74 + ∠BCD = 180°
∠BCD = 180 - 74
∠BCD = 106°
ΔBCD is an isosceles triangle and as such;
∠CBD = ∠CDB = 106/2
∠CBD = ∠CDB = 53°
Now, sum of angles on a straight line add up to 180°. Thus;
∠CBD + ∠BDA + ∠ADE = 180°
Plugging in the relevant values gives;
53° + 74° + ∠ADE = 180°
∠ADE = 180 - (53 + 74)
∠ADE = 53°
Read more at; https://brainly.com/question/24339167
A number cube is rolled. What is the likelihood that a number less than or equal to three is rolled?
The probability that a number less than or equal to three is rolled is 1/2.
Given that, a number cube is rolled, we need to find that what is the probability that a number less than or equal to three is rolled,
So, the probability = favorable outcomes / total outcomes
Here, the favorable outcome = 1, 2, 3 = 3
The total outcomes = 1, 2, 3, 4, 5, 6 = 6
So, the probability = 3/6 = 1/2
Hence, the probability that a number less than or equal to three is rolled is 1/2.
Learn more about probability click;
https://brainly.com/question/30034780
#SPJ2
Find the value of x
4x - 13 = 3x +7
Step-by-step explanation:
4x - 13 = 3x + 7
4x - 3x = 7 + 13
x = 20
Therefore x = 20
The chair of the meeting collects $2702 from 28 people.Whats the unit rate?
Answer:
$96.50
Step-by-step explanation:
Square the following numbers: 3 8 10
Answer:
3^2 = 9
8^2 = 64
10^2 = 100
Three out of seven students in the cafeteria line are chosen to answer survey questions. How many different combinations of three students are possible? 7 C 3 = StartFraction 7 factorial Over (7 minus 3) factorial 3 factorial 7 35 70 210
Answer:
The number of different combinations of three students that are possible is 35.
Step-by-step explanation:
Given that three out of seven students in the cafeteria line are chosen to answer a survey question.
The number of different combinations of three students that are possible is given as:
7C3 (read as 7 Combination 3)
xCy (x Combination y) is defines as
x!/(x-y)!y!
Where x! is read as x - factorial or factorial-x, and is defined as
x(x-1)(x-2)(x-3)...2×1.
Now,
7C3 = 7!/(7 - 3)!3!
= 7!/4!3!
= (7×6×5×4×3×2×1)/(4×3×2×1)(3×2×1)
= (7×6×5)/(3×2×1)
= 7×5
= 35
Therefore, the number of different combinations of three students that are possible is 35.
There are 35 different combinations to chose 3 students from the 7 students
How to determine the number of combinations?The given parameters are:
Students, n = 7
Selected , r = 3
The number of different combinations is calculated using:
Combination = nCr
This gives
Combination = 7C3
Using the combination formula, we have:
Combination = 35
Hence, there are 35 different combinations to chose 3 students from the 7 students
Read more about combination at:
https://brainly.com/question/11732255
#SPJ5
A square tile has a width of 1 foot. How many tiles will fit end-to-end along a
4-foot wall?
Answer:
4
Step-by-step explanation:
Starting at the left end of the wall, you'll find that you can set four (4) tiles end to end along this wall.
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!
Answer:
-1/5
Step-by-step explanation:
h(0) is 5, and h^-1 is 1/h, so 1/-5 is -1/5.
On a game show, contestants shoot a foam ball toward a target. The table includes points along one path the ball can take to hit the target where x is the time that has passed since the ball was launched and y is the height at this time.
Time (x)
Height (y)
0 10
2 24
16 10
How high was the ball after 8 seconds?
Answer:
42
Step-by-step explanation:
A dilation is given by the transformation (x, y) - (.75x, 75y). What type of dilation is this
A -enlargement
B- it is not a dilation
C- reduction
If (2 − √3) is a zero of a quadratic polynomial then the other zero is __________.
Answer:
(2+sqrt3)
Step-by-step explanation:
Assertion(A): (2-√3) is one zero of the quadratic polynomial then the other zero will be (2+√3).
Reason (R): Irrational zeros (roots) always occurs in pairs.
What is the other zero of the polynomial if one zero of the quadratic polynomial?Since the given polynomial is a quadratic so it has only two zeros. Let other zero be x. Hence, the other zero is (2 -√3).
What is one zero of the quadratic polynomial?Polynomials that have only one zero mean both values of the variable are the same. This is the case of equal zeros of a quadratic equation. Let x be the variable of a quadratic equation and both zeroes of the quadratic equation are 2, i.e., equal roots.
Learn more about quadratic polynomial at
https://brainly.com/question/20515167
#SPJ2
If a conditional statement is “If the sun shines, people will be in good moods”, what is the statement “If the sun does not shine, people will not be in good moods.” A. converse B.conditional C. inverse D. contrapositive
Answer:
C. Inverse
Step-by-step explanation:
The second statement is the inverse, because in an inverse, the hypothesis and the conclusion are both negated. In this case, the sun doesnt shine and the people wont be in a good mood, as opposed to the sun will shine, and the people will be in a good mood.
Answer:
Inverse
Step-by-step explanation:
Danielle says that her set of numbers are integers. Left-brace negative 253, negative 45, negative 0.9, 0, 26 Right-brace Danielle is wrong. Which explanation of why she is wrong is correct? Danielle has included negative numbers. Negative numbers are not integers. Danielle has included a decimal. Decimals are not integers. Danielle included zero. Zero is not an integer. Danielle included a positive number. Positive numbers are not integers.
Hey!Here is ur answer:
Danielle is wrong cause 'she has included a decimal'.
U might doubt that zero is might not be an integer but it is a neutral integer.
HOPE IT MAKES UR DAY BETTER!!
Danielle says that her set of numbers are integers the statement is wrong as the set contain decimal number because decimal numbers are not integers, so option C is correct.
What are integers?All whole numbers and negative numbers are considered integers. This means that if we combine negative numbers with whole numbers, a collection of integers results.
Given:
Danielle says that her set of numbers are integers. Left-brace negative 253, negative 45, negative 0.9, 0, 26 Right-brace,
Write the above phrase in the mathematical form as shown below,
(-253, -45, -0.9, 0, 26)
As we know that integers are whole numbers, they can't be a decimal numbers or a fraction,
Thus, the set of numbers are integers is wrong because it contains decimal numbers.
To know more about integers:
https://brainly.com/question/14624755?
#SPJ5
what are the values of the coefficient and constant term of 0 = 4 - 7 x^2 + x in standard form? a= b= c=
Step-by-step explanation:
0 = 4 - 7 x^2 + x
0= (-7)x^2 + (1)x + 4
a= -7
b = 1
c= 4
Solve for x. I WILL MARK BRAINLIEST.
Answer:
73 degreesStep-by-step explanation:
We all know that the inner degrees of a pentagon add up to 540°
thus we can use the following equation to solve for x:
33+140+2x+x+x+75=540
173+4x+75=540
248+4x=540
4x=540-248
4x=292
x=292/4
x=73
Thus, the answer is 73 degrees
Answer:
[tex]x=73[/tex]
Step-by-step explanation:
The sum of all interior angles of a pentagon is 540°.
[tex]33+140+2x+x+x+75=540[/tex]
Add all like terms.
[tex]33+140+4x+75=540[/tex]
[tex]4x+248=540[/tex]
Subtract 248 on both sides.
[tex]4x=540-248[/tex]
[tex]4x=292[/tex]
Divide 4 on both sides.
[tex]x=292/4[/tex]
[tex]x=73[/tex]
Select the correct answer.
Which of these numbers are 11 units from 0 on the number line?
A:0
B: +11
C: -11
A. A and B
B: A and C
C: B and C
D: C only
the 11 units from 0 is c only
Write the fraction as a percent. Round to the nearest tenth of a percent if necessary.
17/40
Plsss help !!
Answer:42.5%
Step-by-step explanation:
Answer:
the answer is 42.5%
Step-by-step explanation:
you multiply both 40 and 17 by 2.5 to get 42.5/100 which is the percent in fraction form
which of the following rational functions is graphed below
Answer:
D.
Step-by-step explanation:
The simplest and fastest way to answer this question is to graph the equations given. Once you do so, then you should see that D is the correct answer.
[x^2+2y]^3
expand it
[tex](a + b) {}^{3} = a {}^{3} + 3a {}^{2} b + 3ab {}^{2} + b {}^{3} \\ \\ x {}^{6} + 6x {}^{4} y + 12x {}^{2} y {}^{2} + 8y {}^{3} [/tex]
Answer:
x^6 + 6x^4 y + 12x^2 y^2 + 8y^3.
Step-by-step explanation:
Using the Binomial Theorem:
(x^2 + 2y)^3 = (x^2)^3 + 3C1 (x^2)^2 (2y) + 3C2 x^2 (2y)^2 + (2y)^3
= x^6 + 3*x^4*2y + 3*x^2*4y^2 + 8y^3
= x^6 + 6x^4 y + 12x^2 y^2 + 8y^3.
I run a book club with $n$ people, not including myself. Every day, for $365$ days, I invite five members in the club to review a book. What is the smallest positive integer $n$ so that I can avoid ever having the exact same group of five members over all $365$ days?
Answer:
Step-by-step explanation:
if we have n people and we want to do groups of 5, the total number of different combinations is:
[tex]c = \frac{n!}{(n - 5)!5!}[/tex]
find the smallest n such c > 365.
let's do it by brute force:
if n = 5, we have:
[tex]c = 5C_5 = 5[/tex]
if n = 6
[tex]c =6C_5 =6[/tex]
if n = 7
[tex]c = 7C_ 5= 21[/tex]
if n = 8
[tex]c = 8C_5 = 56[/tex]
if n = 9
[tex]C = 9!/(4!*5!) = 126[/tex]
so 9 is not enough, let's see N = 10
C = 10!/(5!*5!) = 252
10 is not enough, let's see with 11.
C = 11!/(6!*5!) = 462
So you need at least 11 members in the club.
Then the minimum number of members such we have more than 365 combinations is 11 members
Client need al least 11 members in the club.
Permutation and CombinationAccording to the question,
Group of five members, the combination will be:
→ [tex]c = \frac{n!}{(n-5)! \ 5!}[/tex]
By using Brute force,
If n = 5,
c = 5,
C₅ = 5
If n = 6,
c = 6,
C₅ = 6
If n = 7,
c = 7,
C₅ = 21
If n = 8,
c = 8,
C₅ = 56
Now,
If n = 9,
→ C = [tex]\frac{9!}{(4!\times 5!)}[/tex]
= 126
and, If n = 10,
→ C = [tex]\frac{10!}{(5!\times 5!)}[/tex]
= 252
and, If n = 11,
→ C = [tex]\frac{11!}{(6!\times 5!)}[/tex]
= 462
Then perhaps the minimal number of individuals required to have more than 365 possible combinations seems to be 11.
Thus the response above is correct.
Find out more information about combination here:
https://brainly.com/question/11732255
can someone please help???
Answer:
2/3
Step-by-step explanation:
.that's the answer
plz help me, brainliest to be given
Answer:
4%
Step-by-step explanation:
R=INTEREST X 100% / TIME X PRINCIPAL
r=40 x 100=4000
4000/500 x 2=1000
4000/1000=4%
Shelley sells 5 bone-shaped treats for $3.50. How much should she charge for a package of 12 treats? Which proportion is needed to solve the problem? StartFraction 5 over 12 EndFraction = StartFraction x over 3.5 EndFraction StartFraction 12 over 3.5 EndFraction = StartFraction 5 over x EndFraction StartFraction 3.5 over 12 EndFraction = StartFraction 5 over x EndFraction StartFraction 5 over 3.5 EndFraction = StartFraction 12 over x EndFraction
Answer:
StartFraction 5 over 3.5 EndFraction = StartFraction 12 over x EndFraction
or [tex]\frac{5}{3.5}[/tex] = [tex]\frac{12}{x}[/tex]
Step-by-step explanation:
Answer:
it’s D
Step-by-step explanation:
Lisa sees a dress in a sale .The normal price of the dress is $45 the price that she reduced by 12% in a sale work out the price of the dress in the sale
Answer:
$39.6
Step-by-step explanation:
Use the grouping method to factor x3 + x2 + 3x + 3.
A.(x + 1)(x2 + 3)
B.(x + 1)(x + 3)
C.x(x + 3)(x + 1)
D. (x + 1)(x+3)
Answer:
(x+1) (x^2+3)
Step-by-step explanation:
x^3 + x^2 + 3x + 3
x^3 + x^2 + 3x + 3
Factor out x^2 from the first group and 3 from the second group
x^2(x+1) +3(x+1)
Then factor out (x+1)
(x+1) (x^2+3)
Answer:
[tex](x + 1)( {x}^{2} +3 )[/tex]
Answer A is correct
Step-by-step explanation:
[tex] {x}^{3} + {x}^{2} + 3x + 3 \\ {x}^{2} (x + 1) + 3(x + 1) \\ = ( {x}^{2} + 3)(x + 1)[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
She needs to build a line of dominoes 21 and 1/4 in a long with each domino spaced 1 and 1/4 in. apart. How many will she need?
Answer:
17 dominoes
Step-by-step explanation:
21 and 1/4 in divided by how far they need to be spaced apart, 1 and 1/4 in, is equal to 17 dominoes.
If sin 2X = COS ZY and m2X = 72°, what is the measure of ZY?
18°
072°
90°
108°
Answer:
18°
Step-by-step explanation:
sin 2x=cos zy
m(2x)=72°
cos(π/2-a)=sin a
cos(π/2-72°)=sin72°
cos18°=sin72°
=>m(zy)=18°
There are 46 children attending the Hefner field trip. Each van will hold 8 children. How many van's will be needed to transport each child to and from the field trip?
Answer:
6
Step-by-step explanation:
There are 46 children attending the field trip.
Each van needs to transport 8 children.
To find the number of vans they need, we will divide the number of children by the number of children per van:
46 / 8 = 5.75 ≅ 6 vans
They need 6 vans.
what types of solutions does this equation have?
Answer:
Two imaginary solutions.
Step-by-step explanation:
In order to simplify the equation, we square root both sides. As the argument (value in the root) is negative, and we know that the square root function's domain is only positive numbers, we would have two imaginary solutions.
This would be positive/negative [tex]3i\sqrt{5}[/tex].
Another way to visualize this is by looking at the parabola's graph. Through algebraic manipulation, we know that the parabola is z^2 + 45. This parabola never crosses the x-axis. Therefore there are two solutions that are imaginary.
I hope this helps!
