ANSWER
[tex]32 \sqrt{3} {ft}^{2} [/tex]
EXPLANATION
The area of a tra-pezoid is half times sum of the bases times the vertical height.
From the diagram ( see attachment) we use the Pythagoras Theorem to obtain,
[tex] {x}^{2} + {(4 \sqrt{3}) }^{2} = {8}^{2} [/tex]
[tex] {x}^{2} + 48 = 64[/tex]
[tex]{x}^{2} = 64 - 48[/tex]
[tex]{x}^{2}=16[/tex]
[tex]x = \sqrt{16} = 4ft[/tex]
This implies that , y=10-4=6ft
The area of tra-pezoid
[tex] = \frac{1}{2} (10 + 6) \times 4 \sqrt{3} [/tex]
[tex] = \frac{1}{2} (16) \times 4 \sqrt{3} [/tex]
[tex] = 8\times 4 \sqrt{3} [/tex]
[tex] = 32 \sqrt{3} {ft}^{2} [/tex]
Which of the following is a solution of y > |x| - 6?
(-5, 1)
(-1, -5)
(5, -1)
ANSWER
(-5,1) is the correct answer
EXPLANATION
The given inequality is:
[tex]y \: > \: |x|- 6[/tex]
If any point satisfies this inequality, then it is a solution.
We need to substitute each point into the given inequality.
We substitute (-5,1) to get:
[tex]1\: > \: | - 5|- 6 \implies1\: > \: - 1[/tex]
This statement is true. Hence (-5,1) is a solution.
For (-1,-5), we have
[tex] - 5\: > \: | - 1|- 6 \implies - 5\: > \: - 5[/tex]
This is false.
For (5,-1), we have
[tex] - 1\: > \: | 5|- 6 \implies - 1\: > \: - 1[/tex]
This is also false.
Answer:
(-5,1) is the correct answer
Solve the proportion below. X/18= 8.5/17 x=?
Answer:
x=9
Step-by-step explanation:
we have been given the following proportion;
x/18 = 8.5/17
we are required to solve for x. In order to solve for x, we simply make x the subject on the left hand side . This can be done by multiplying both sides by 18;
(x/18)*18 = (8.5/17)*18
x = 153/17
x = 9
Answer:
9
Step-by-step explanation:
If f(x) = 4x + 5, which of these is the inverse of f(x)?
Answer:
A
Step-by-step explanation:
y=4x+5
x=4y+5
4y+5=x
4y+5-5=x-5
4y=x-5
4y/4= x/4 - 5/4
y= x-5/4
To find the inverse of the function f(x) = 4x + 5, switch x and y in the equation, then solve for y to get the inverse function, which is f-1(x) = (x - 5) / 4.
Explanation:To find the inverse of the function f(x) = 4x + 5, you would follow these steps:
Replace f(x) with y: y = 4x + 5.Switch the roles of x and y: x = 4y + 5.Solve the equation for y to find the inverse function:Subtract 5 from both sides: x - 5 = 4y.Divide by 4: y = (x - 5) / 4.The inverse function is: f-1(x) = (x - 5) / 4.This inverse function will satisfy the condition that f(f-1(x)) = x and f-1(f(x)) = x, which is the defining property of an inverse function.
how do you solve 5x³ divided by (5x) ³?
Answer:
[tex]\frac{1}{25}[/tex]
Step-by-step explanation:
note that (5x)³ = 5³x³ = 125x³
Hence
[tex]\frac{5x^3}{125x^3}[/tex]
Cancel the x³ on numerator/denominator and divide the 5 and 125 by 5
= [tex]\frac{1}{25}[/tex] ← in simplified form
9. David had $350. After shopping, he was left with $235. If c represents the amount he spent, write an equation to represent
this situation. Then use the equation to find the amount of money David spent.
Answer: meow 1. −6z + 13 = −11z − 7
2. 6 + 17z = 13z + 18
3. 4
5 k – 5 = –7 +
2
5 k
4. − 4
5 w +
1
4 =
1
5 +
1
3 w
5. 15(−42x + 40) = 15(−8x + 244)
6. 4 – 3
5 (3a + 4) = 7
7. 1
2 (15 + 7d) = − d
Step-by-step explanation:
Answer:
The amount of money David spent is $115.
Step-by-step explanation:
Consider the provided information.
David had $350. After shopping, he was left with $235.
Let the money spent by David is c.
As some money are spent from the total amount, So use a "-" sign and put the equation equals to 235, as this is the amount he left with.
The equation can be represented as:
350 - c = 235
Now simplify the above equation in order to find the money spent by David.
Isolate the variable by adding c and subtracting 235 from both sides.
350 - c + c -235 = 235 + c -235
115 = c
Hence, the amount of money David spent is $115.
Use a half-angled identity to find the exact value of sin 75 degrees
Answer:
[tex]\sin 75\degree=\frac{\sqrt{2+\sqrt{3}}}{2}[/tex]
Step-by-step explanation:
The haf-angle formula is given by:
[tex]\sin \frac{1}{2}\theta =\sqrt{\frac{1-\cos \theta}{2} }[/tex]
[tex]\sin 75\degree=\sin \frac{1}{2}(150\degree)[/tex].
This implies that:
[tex]\sin \frac{1}{2}(150\degree) =\sqrt{\frac{1-\cos 150\degree}{2} }[/tex]
[tex]\sin \frac{1}{2}(150\degree) =\sqrt{\frac{1--\frac{\sqrt{3}}{2}}{2}}[/tex]
[tex]\sin \frac{1}{2}(150\degree) =\sqrt{\frac{2+\sqrt{3}}{4}}[/tex]
We simplify the square root to obtain:
[tex]\sin \frac{1}{2}(150\degree)=\frac{\sqrt{2+\sqrt{3}}}{2}[/tex]
Answer:
[A] [tex]\frac{\sqrt{2 + \sqrt{3} } }{2}[/tex]
How many students tired out for the volleyball team is this a statistical or no
That question is not a statistical question since there will be only one answer. If it were to be statistical it would have multiple answers an example of that type of question would be, Why did you decide to try out for the volleyball team? This is statistical because some could say they joined for fun, credits, to do something active, etc.. there would be multiple answers. Your question, How many students tried out for the volleyball team isn't statistical since it will have one answer such as, 26 students, 15 student, 2 students, etc...
Hope this helped!
The question about how many students tried out for a volleyball team relates to statistics. It involves collecting, analyzing, and interpreting numerical data. For example, the number of students trying out for the team can be used as statistical data.
Explanation:The question 'How many students tried out for the volleyball team?' is one that relates to statistics. This is because it seeks to gather numerical data (in this case, the number of students) related to a specific event (trying out for the volleyball team). Therefore, the process of answering this question would involve collecting, analyzing, interpreting, presenting, or organizing this data.
For instance, let's say that 30 students tried out for the volleyball team. This count is a piece of statistical data which may be further used to compare with previous years, calculate percentages, or make projections for following years.
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Given: △EIJ, k(O, r)
EI = EJ = r=10 cm
EP ⊥ IJ
Find: JP
Answer:
[tex]JP=5\sqrt{3}\ cm[/tex]
Step-by-step explanation:
Connecting points O and E and points O and J, we get triangle EOJ. This triangle is equilateral triangle, because OJ=OE=JE=r=10 cm.
Since EP⊥IJ, then segment JP is the height of the triangle EOJ.
The height of the equilateral triangle can be found using formula
[tex]h=\dfrac{a\sqrt{3}}{2},[/tex]
where a is the side length.
So,
[tex]h=\dfrac{10\sqrt{3}}{2}=5\sqrt{3}\ cm.[/tex]
Select all that apply.
Given the points (3, 2) and (6,4), which of the following are true about the line passing through these points?
The line has a slope of 3/2
The line represents a direct variation function.
The line has a slope of 2/3
The point (-6.9) is also on the line.
Answer: The line represents a direct variation function.
Step-by-step explanation: Rest of them are not true. for 1 and 3, plug in the x and y value to the equation y=mx + b.
(x,y)
Can someone plz help me.
Answer:
1) (-2)+3
-2+3
=1
2) (-14)+(-7)
-14-7
=-21
3) 3-(-8)
3+8
=11
4) (-9)+14
-9+14
=5
5) (-8)-(-2)
-8+2
=-6
6) 5+(-8)
5-8
=-3
7) (-27)-24
-27-24
=-51
8) (-41)+(-40)
-41-40
=-81
9) 38-(-17)
38+17
=55
10) (-44)+(-9)
-44-9
=-53
11) (-16)-(-36)
-16+36
=20
12) (-6)-24
-6-24
=-30
hope this helps :)
What is the domain of y= 2x - 4/x^2 - 4?
Answer:
{x while x ≠2, -2}
Step-by-step explanation:
First let's define domain,
Domain is the set of all values on which the function is defined i.e. the function doesn't approach to infinity.
Given function is:
[tex]y = \frac{2x-4}{x^{2} -4}[/tex]
We will look for all the values of x on which the function will become undefined:
We can see that x= 2 and x=-2 will make the denominator zero as there is x^2 involved. The denominator zero will make the function undefined.
So, the domain of the function is set of all real numbers except 2 nd -2 {x while x ≠2, -2} ..
Answer:
[tex](-\infty,-2)\cup (-2,2)\cup (2,+\infty)[/tex]
Step-by-step explanation:
The given rational expression is:
[tex]y=\frac{2x-4}{x^2-4}[/tex]
We factor this expression to obtain:
[tex]y=\frac{2(x-2)}{(x-2)(x+2)}[/tex]
We can see that, this rational function has a hole at x=2 and a vertical asymptote at x=-2
Therefore the domain is
[tex]x\ne 2\: and\:x\ne -2[/tex]
Or
[tex](-\infty,-2)\cup (-2,2)\cup (2,+\infty)[/tex]
Evaluate 3x3y?, if x=-2 and y=-1
Answer:
18
Step-by-step explanation:
(3x)(3y)
= (3)(-2)(3)(-1)
= 18
Please simplify this expression thanks
Answer:
Step-by-step explanation:
Factor numerator: x^2 + x - 12 = (x + 4)(x - 3)
Factor denominator: x^2 + 7x + 12 = (x + 3)(x + 4)
Notice that the numerator and denominator have a common factor (x + 4).
They can cancel.
What is left is (x - 3)/(x + 3)
let f(x)=x^2-2x+2 and g(x)=x-3 find f(x)•g(x)
Answer:
[tex]\large\boxed{x^3-5x^2+8x-6}[/tex]
Step-by-step explanation:
[tex]f(x)=x^2-2x+2\\\\g(x)=x-3\\\\f(x)\cdot g(x)=(x^2-2x+2)(x-3)\qquad\text{use}\ \bold{FOIL}:\ (a+b)(c+d)=ac+ad+bc+bd\\\\f(x)\cdot g(x)=(x^2)(x)+(x^2)(-3)+(-2x)(x)+(-2x)(-3)+(2)(x)+(2)(-3)\\\\f(x)\cdot g(x)=x^3-3x^2-2x^2+6x+2x-6\qquad\text{combine like terms}\\\\f(x)\cdot g(x)=x^3+(-3x^2-2x^2)+(6x+2x)-6\\\\f(x)\cdot g(x)=x^3-5x^2+8x-6[/tex]
What’s y (Solve and show work): 3(y-2)= -21
I attached an image doing it out
Answer:
y = -5
Step-by-step explanation:
Equation:
3( y - 2 ) = -21
3y - 6 = -21
3y = -21 + 6
3y = -15
y = [tex]\frac{-15}{3}[/tex]
y = -5
I'm over thinking this please help it is multiple choice
Answer:
D) >20% are in favor
Step-by-step explanation:
Process of elimination:
Not C, since the same number is undecided for each
Not A, since more people are undecided
Not B, since 60 students decided compared to 40 undecided
The answer is D, since 25/100 = 25% of students are in favor
a.
8 + 12 + 16 + 20; 56
c.
8 + 12 + 16 + 20; 120
b.
8 + 16 + 32 + 64; 56
d.
8 + 16 + 32 + 64; 120
Answer:
a. 8 + 12 + 16 + 20; 56Step-by-step explanation:
[tex]\sum\limits_{k=2}^54k\\\\\text{Make a sum with components equal to 4k,}\\\text{ where k = 2, k = 3, k = 4 and k = 5}:\\\\4(2)=8\\4(3)=12\\4(4)=16\\4(5)=20\\\\8+12+16+20=56[/tex]
Can someone help me with this. Ill post a picture of everything.
Answer:
DCD, CDCStep-by-step explanation:
DDD
DDC
DCDCDD
CCC
CCD
CDCDCC
BC is tangent to circle A at point B. What is m2ACB if mZCAB = 22° ?
Answer:
68°
Step-by-step explanation:
We know that sum of 3 angles in a triangle is 180°.
In ΔBAC, there are angles B, A, and C. Thus we can say:
B + A + C = 180
Since, BC is tangent to circle, the point of tangency, B is a 90 degree angle. So angle B is 90.
Also, given angle CAB is 22, which, in other word, is angle A is 22.
Thus, we can write:
B + A + C = 180
90 + 22 + C = 180
112 + C = 180
C = 180 - 112 = 68
Measure of angle ACB = 68°
The measure of angle ACB is 68°.
We know that sum of 3 angles in a triangle is 180°.
In ΔBAC, there are angles B, A, and C. Thus we can say:
B + A + C = 180
Since, BC is tangent to circle, the point of tangency, B is a 90 degree angle. So angle B is 90.
Also, given angle CAB is 22, which, in other word, is angle A is 22.
Thus, we can write:
B + A + C = 180
90 + 22 + C = 180
112 + C = 180
C = 180 - 112 = 68
Which of the following statements are true?
Answer:
option A and B are correct.
Step-by-step explanation:
Given: [tex]p(t) = \frac{64}{1 + 11e^{-.08t} }[/tex]
Option A: [tex]\lim_{t \to \infty} \frac{64}{1 + 11e^{-.08(\infty)} } = \frac{64}{1 + 0} = 64[/tex]
Option A is true,
Option B: [tex]P(0) = \frac{64}{1 + 11} = 5.33[/tex]
Option B is also true.
Option C:
[tex]P(t + 1) = \frac{64}{1 + 11e^{-.08(t + 1)} } = \frac{64}{1 + 10.15e^{-.08t} } \\1.08 · P(t) = \frac{64 · 1.08 }{1 + 11e^{-.08t} } = \frac{69.12}{1 + 11e^{-.08t} }[/tex]
P(t + 1) ≠ 1.08 · P(t)
Option C is incorrect.
Option D: It is also incorrect, because according to option 2 earth's population will not grow exponentially without Bound.
The probability it will snow in the next two weeks is 1/12 for this week and 1/4 for next week.
What is P(snow this week, then snow next week)?
Answer:
1/48
Step-by-step explanation:
The probability of both happening is equal to the product of each probability.
P(A and B) = P(A) × P(B)
P = 1/12 × 1/4
P = 1/48
Answer:
i agree that the answer is 1/48
Step-by-step explanation:
Nick and June win some money and share it in the ratio 5:3. Nick gets £26 more than June. How much did June get?
The difference between the ratio 5:3 is 2 ( 5-3 = 2)
Nick gets 2 extra shares which is equal to £26
1 share = 26 / 2 = 13
June gets 3 shares: 3 x 13 = £39
June gets 3 shares: 3 x 13 is equal to the $39.
Nick and June win some money and share it in the ratio of 5:3.
Nick gets $26 more than June.
What is the difference?The word difference is the result of subtracting one number from another.
The difference between the ratio of 5:3 is 2 ( 5-3 = 2)
Nick gets 2 extra shares which is equal to $26.
1 share = 26 / 2 = 13
June gets 3 shares: 3 x 13 is equal to the $39.
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The type of transformation PQRS undergoes is a . If vertex Q is at (-4, -5), then vertex Q′ is at ?
Answer:
(-4, -5) it gives the answer in the question
Step-by-step explanation:
5x(2)
Explain to me please
Thanks
Answer:
10x
Step-by-step explanation:
5x(2)
When this is simplified, the answer is 10x
5x(2)
5x multiplied by 2 is 10x
The answer is 10x
This is because 5x is being multiplied by 2. We know this because parentheses are one of the several symbols of multiplication.
Even though 5 has an x attached to it you can just ignore it for now, multiply 2 to the 5 then just reattach the x at the end of your answer
Hope this helped!
~Just a girl in love with Shawn Mendes
A quadratic equation of the form 0=ax^2+bx+c has a discriminate value of -16. How many real number solutions does this equation have?
Answer:
0
Step-by-step explanation:
The disciminant [tex]\Delta[/tex] tells you how many real solutions a quadratic equation has, depending on its sign:
[tex]\Delta>0\implies\text{2 solutions}\\\Delta=0\implies\text{1 solution}\\\Delta<0\implies\text{no solutions}[/tex]
ANSWER
0
EXPLANATION
The discriminant of a quadratic equation in the form
[tex]a {x}^{2} + bx + c = 0[/tex]
is given by
[tex]D = {b}^{2} - 4ac[/tex]
The discriminant of a quadratic equation tells us the nature of the roots of that quadratic equation.
If the discriminant is negative, the equation has no real roots.
If the discriminant us positive, the equation has two real roots.
If the discriminant is zero, the equation has a repeated root.
Since the discriminant is -6, the equation has no real roots.
In other words, the number of real roots is 0.
What is the solution to 3/(2x+1) = 9/3x?
Answer:
Solution x = - 1
Step-by-step explanation:
3 / (2x+1) = 9 / 3x
Cross multiply
3(3x) = 9(2x + 1)
Distributive property
9x = 18x + 9
Subtract 18x from both sides
-9x = 9
Divide both sides by -9
x = -1
What is 10% of $4.30 ?
Answer: 0.43
Step-by-step explanation: if you ever need help like this for percentages again i just use this website its reallyyyy helpful :) https://percentagecalculator.net/
f(y) = 8y2 – 7y + 6. What is the constant of the function?
Answer:
+ 6
Step-by-step explanation:
The constant term in the function is the term which is only numeric and has no variable attached to it.
f(y) = 8y² - 7y + 6 → has constant term + 6
What is the common between 2,8, 14, 20, 26
Answer:
So i believe the answer is 2.
Step-by-step explanation:
The common denominator? Right? If so
2: 1 and 2
8: 1,8,2, and 4
14: 1,14,2, and 7
20:,1,20,2,10,4, and 5
26:1,26,13, and 2
Hope my answer has helped you!
Determine whether the function f(x) = -2x - 5x is even, odd, or neither.
Answer: odd
Step-by-step explanation:
A function is even if for any input value x and -x there is the same output value y. In other words, a function is even if:
[tex]f (-x) = f (x)[/tex]
A function is odd if it is true that:
[tex]f (-x) = -f (x)[/tex]
Then we must test if [tex]f(-x) = f(x)[/tex] for the function: [tex]f(x)=-2x - 5x[/tex]
[tex]f(-x)=-2(-x) - 5(-x)[/tex]
[tex]f(-x)=2x + 5x[/tex]
So [tex]f(-x) \neq f(x)[/tex]
The function is not even
Now we must test if [tex]f (-x) = -f (x)[/tex] for the function.
[tex]f(-x)=-2(-x) - 5(-x)[/tex]
[tex]f(-x)=2x + 5x[/tex]
[tex]f(-x)=-(-2x -5x)[/tex] and [tex]f(x)=-2x - 5x[/tex]
So [tex]f(-x) = -f(x)[/tex]
Finally the function is odd