ABCD is an isosceles trapezoid with AD II BC, mZB = 60°, and mZC = (3x +15) Solve for x.
A 15
B. 25
C. 35
D. 60

Answer:

8.6%

Step-by-step explanation:

To find the percent change, you will need to compute the positive difference and then divide the difference by the original (the older amount).

So the positive difference will be obtain by doing larger minus smaller:

 6300

- 5800

-----------

   500

The older amount was 5800.

So 500/5800 is the answer as a un-reduced fraction.

I'm going to reduce it by dividing top and bottom by 100:

500/5800  = 5/58

5/58 is the answer as a reduced fraction.

5 divided by 58 gives=0.086206897  in the calculator .

Approximately 0.0862 is the answer as a decimal.

To convert this to a percentage, multiply it by a 100:

8.62%

Rounded to the nearest tenths is 8.6%

-------------

So 5800+5800(.0862) should be pretty close to 6300 (not exactly though since we rounded).

5800+5800(.0862)=6299.96 using the calculator.

Answer:

A line where you put it in the middle of the shape and see if it's symmetrical or the same. You fold the shape and if one side matches to other, that is symmetrical. That is the line of symmetry.

A line of symmetry divides a figure into two parts such that each part is the mirror image of the other. In other words, if we flip one side of the figure over the line of symmetry, it should match up exactly with the other side.

Answer:

RS/VU=ST/UT and ∠S≅∠U

Step-by-step explanation:

we know that

The Side-Angle-Side Similarity Theorem states that: If two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar

In this problem the included angle is

∠S≅∠U

therefore

side RS must be proportional to side VU  and side ST must be proportional to side UT

so

RS/VU=ST/UT

Verify

substitute the given values

12/6=16/8

2=2 -----> is true

therefore

The two sides are proportional

so, we know his average speed is 1¾ of a mile in 1 hour, so how long is it to cover 9⅝ miles then?

[tex]\bf \begin{array}{ccll} miles&hour\\ \cline{1-2} 1\frac{3}{4}&1\\\\ 9\frac{5}{8}&x \end{array}\implies \cfrac{~~1\frac{3}{4}~~}{9\frac{5}{8}}=\cfrac{1}{x}\implies \cfrac{~~\frac{1\cdot 4+3}{4}~~}{\frac{9\cdot 8+5}{8}}=\cfrac{1}{x}\implies \cfrac{~~\frac{7}{4}~~}{\frac{77}{8}}=\cfrac{1}{x}[/tex]

[tex]\bf \cfrac{~~\begin{matrix} 7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\cdot \cfrac{\stackrel{2}{~~\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{\underset{11}{~~\begin{matrix} 77 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}} =\cfrac{1}{x}\implies \cfrac{2}{11}=\cfrac{1}{x}\implies 2x=11\implies x=\cfrac{11}{2}\implies x=5\frac{1}{2}[/tex]

The required time is 5.5 hours.

Linear equations are equations of the first order. The linear equations are defined for lines in the coordinate system. When the equation has a homogeneous variable of degree 1.

It is given that,

Speed=[tex]1\frac{3}{4}[/tex] mile per hour.

Distane:=[tex]9\frac{5}{8}[/tex] mile

[tex]Time=\frac{Distance}{Speed}[/tex]

Now, substituting the given values into the above formula we get,

[tex]T=\frac{\frac{77}{8} }{\frac{7}{4} }\\ =\frac{77\times4}{8\times 7} \\=\frac{11}{2}\\ T=5.5 hour[/tex]

Learn more about the time:https://brainly.com/question/19668173

Answer: a.) 3

Step-by-step explanation:

Using the common convention that the horizontal axis represents variable x and the vertical axis represents variable y, then x-intercept or horizontal intercept is a point where the graph of the function intersects the x-axis of the coordinate system. As such, these points satisfy y = 0 where the line crosses the x-axis.

Then replacing this value in the equation

2x-3y = 6

2x - 3*0 = 6

2x = 6

x = 6/2 = 3

The x-intercept is 3

Answer: a.) 3

[tex]\textit{\textbf{Spymore}}[/tex]

Answer:

a 3

Step-by-step explanation:

Given

2x - 3y = 6

To find the x- intercept substitute y = 0 into the equation and solve for x

2x - 3(0) = 6

2x = 6 ( divide both sides by 2 )

x = 3 ← x- intercept

Answer:

0.0203 meters

Step-by-step explanation:

If a coral reef grew 20.3 mm taller, it grew 0.0203 meters taller.

20.3 mm = 0.0203 meters

The coral reef grew by 20.3 millimeters last week, which is equivalent to 0.0203 meters. This is calculated by dividing the millimeters by 1000, as there are 1000 millimeters in a meter.

The amount of growth in the coral reef's height can be converted from millimeters to meters by using the conversion ratio of 1 meter being equal to 1000 millimeters. So, to find out how much the coral reef grew in meters, we would take the growth in millimeters (20.3 mm) and divide by 1000.

The calculation would be like this: 20.3 mm / 1000 = 0.0203 meters.

So, the coral reef grew by 0.0203 meters last week.

https://brainly.com/question/32030244

#SPJ2

Answer:

the answer you picked is the right one.

Step-by-step explanation:

both are obtuse angles

and

angle 2 = angle 3

they are also alternative interior angles

Answer:

The slope is -3/2.

Step-by-step explanation:

Hint: slope formula:

[tex]\displaystyle \frac{y_2-y_1}{x_2-x_1}=\frac{rise}{run}[/tex]

[tex]\displaystyle \frac{0-(-6)}{(-4)-0}=\frac{6}{-4}=\frac{6\div2}{-4\div2}=\frac{3}{-2}=-\frac{3}{2}[/tex]

[tex]\Large \textnormal{Therefore, the slope is -3/2.}[/tex]

Answer:

y=(-3/2)x+-6

or

y=(-3/2)x-6

Step-by-step explanation:

We are going to use slope-intercept form to find the equation for this line.

y=mx+b is slope-intercept form where m is the slope and b is the y-intercept.

y-intercept means where it crosses the y-axis; the x will be 0 here.  Look the question gives us the y-intercept which is -6.

So we already know b which is -6.

y=mx+-6  

Instead of finding the slope using the slope formula which you could.

I'm going to plug in the point (-4,0) into y=mx+-6 to find m.

So replace x with -4 and y with 0 giving you:

0=m(-4)+-6

0=-4m-6

Add 6 on both sides:

6=-4m

Divide both sides by -4:

6/-4=m

Reduce the fraction:

-3/2=m

The slope is -3/2.

Again you could use the slope formula which says [tex]m=\frac{y_2-y_1}{x_2-x_1} \text{ where } (x_1,y_1) \text{ and } (x_2,y_2) \text{ are points on the line}[/tex].

This is the same thing as lining the points up vertically and subtracting the points vertically then putting 2nd difference over first difference.  Like this:

(  0   , -6)

-( -4  ,   0)

---------------

  4        -6

The slope is -6/4 which is what we got doing it the other way.  

So the equation with m=-3/2 and b=-6 in y=mx+b form is

y=(-3/2)x+-6

or

y=(-3/2)x-6

Answer:

The graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up.

Step-by-step explanation:

The base of the quadratic function is

[tex]f(x) = {x}^{2} [/tex]

We can transform this function to look narrower or wider.

Looking narrower is termed a stretch.

This happens when a>1

Looking wider is termed a compression.

This happens when 0<a<1

We can also

[tex]g(x) = a {(x + h)}^{2} + k[/tex]

+h moves the parent graph to the left by h units

-h moves the parent graph to the left by h units.

+ k moves the parent function up by k units

- k moves the parent function down by k units.

The change that occurs to

[tex]f(x) = {x}^{2} [/tex]

given

[tex]f(x) = 2( {x + 2)}^{2} + 1[/tex]

is that, the graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up

Therefore the last choice is the correct answer.

Answer:

[tex]\large\boxed{(2,2)}[/tex]

Step-by-step explanation:

In this question, we're trying to find the midpoint of the line segment "ST"

In order to find the midpoint, we're going to need to sue the midpoint formula.

Mid point formula:

[tex]m=({\frac{x1+x2}{2}},\frac{y1+y2}{2})[/tex]

You would plug the numbers into the right spot. Plugging the first "x" coordinate to x1 and etc.

Your equation should look like this:

[tex]m=({\frac{-2+6}{2}},\frac{-4+8}{2})[/tex]

Now you will solve:

[tex]m=({\frac{-2+6}{2}},\frac{-4+8}{2})\\\\\text{Lets add all the numbers}\\\\m=({\frac{4}{2}},\frac{4}{2})\\\\\text{Now, you would simply divide the fractions}\\\\m=(2,2)[/tex]

When you're done solving, you should get (2,2)

This means that the midpoint of ST is (2,2)

The formula for midpoint is ([tex]\frac{x_{1}+x_{2}}{2}[/tex], [tex]\frac{y_{1}+y_{2}}{2}[/tex])

In this case:

[tex]x_{1} =-2\\x_{2} =6\\y_{1} =-4\\y_{2} =8[/tex]

^^^Plug in these number into the formula given above...

([tex]\frac{-2 + 6}{2}[/tex], [tex]\frac{-4 + 8}{2}[/tex])

([tex]\frac{4}{2}[/tex], [tex]\frac{4}{2}[/tex])

Simplify the fractions:

(2, 2)

^^^This is the coordinate of the midpoint

Hope this helped!

~Just a girl in love with Shawn Mendes

let's say the amount purchased was "x", so then that's the 100%.

if we know that 400 is the 1¼% and "x" is the 100%, what is "x"?

[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 400&1\frac{1}{4} \end{array}\implies \cfrac{x}{400}=\cfrac{100}{1\frac{1}{4}}\implies \cfrac{x}{400}=\cfrac{100}{\frac{1\cdot 4+1}{4}}\implies \cfrac{x}{400}=\cfrac{\frac{100}{1}}{\frac{5}{4}} \\\\\\ \cfrac{x}{400}=\cfrac{\stackrel{20}{~~\begin{matrix} 100 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{1}\cdot \cfrac{4}{~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies \cfrac{x}{400}=80\implies x=32000[/tex]

Answer:

The correct option is B....

Step-by-step explanation:

The  given equation is:

x + 2y = 12  -----equation 1

- x= -y-6. -------equation 2

lets take equation 2:

-x=-y-6

Take minus as common on R.H.S

-x= -(y+6)

x=y+6  (Lets call it equation 3)

Substitute the value of x in the first equation:

x+2y=12

y+6+2y=12

Combine the like terms:

y+2y = 12-6

3y=6

Divide both the sides by 3

3y/3=6/3

y=2

Now substitute the value of y in equation 3:

x=y+6

x=2+6

x=8

Thus the solution set is (x,y){(8,2)}.

The correct option is B....

Answer:

B. (8,2)

Step-by-step explanation:

Apex

Hope this helps Have a nice day

Answer:

A

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = x - 1 ( add 1 to both sides )

y + 1 = x

change y back into terms of x, hence

[tex]f^{-1}[/tex] (x ) = x + 1 → A

the correct (answer)

is A f1(x)=x+1

To solve for the distance from the base of the cliff, the time to hit the ground is calculated from the initial vertical velocity and the height of the cliff. The horizontal distance is then found by multiplying the time by the horizontal component of the initial velocity.

To determine how far from the base of the cliff a bullet strikes the ground, we use the concepts of projectile motion. The initial velocity components are [tex]v_{0x} = 800 \cos(30^{\circ}) m/s[/tex] (horizontal component) and v_{0y} = [tex]800 \sin(30^{\circ}) m/s[/tex](vertical component downwards). The time it takes for the bullet to hit the ground can be found using the equation for vertical motion: y =[tex]v_{0y}t + \frac{1}{2}gt^2[/tex], where y is the height of the cliff, g is the acceleration due to gravity [tex](-9.8 m/s^2[/tex] since the bullet is moving downwards), and t is the time. Solving for t we get two possible times, but we choose the positive one. Once we have t, we can find the horizontal distance using x = v_{0x}t. Using these calculations, the appropriate distance from the base of the cliff can be determined.

Answer:

624 people

(I put two ways to look at the problem.)

Step-by-step explanation:

What is describe here is an exponential function of the form:

[tex]P=P_0 e^{kt}[/tex]

[tex]t[/tex] is the number of years after 1761.

[tex]P_0[/tex] is the initial population.

So t=0 represents year 1761.

t=1 represents year 1762

t=2 represents year 1763

....

t=20 represents year 1781.

So we have the doubling time is 5 years.  This means the population will be twice what it was in 5 years.  Let's plug this into:

[tex]P=P_0e^{kt}[/tex]

[tex]2P_0=P_0e^{k\cdot 5}[/tex]

Divide both sides by [tex]P_0[/tex]:

[tex]2=e^{5k}[/tex]

Convert to logarithm form:

[tex]5k=\ln(2)[/tex]

Multiply both sides by 1/5:

[tex]k=\frac{1}{5}\ln(2)[/tex]

[tex]k=\ln(2^{\frac{1}{5}})[/tex] By power rule.

So in the next sentence they actually give us the initial population and we just found k so this is our function for P:

[tex]P=39e^{\ln(2^{\frac{1}{5}})t}[/tex]

So now we plug in 20 to find how many residents there were in 1761:

[tex]P=39e^{\ln(2^{\frac{1}{5}})(20)}[/tex]

This is surely going to the calculator:

[tex]P=624[/tex]

Now if you don't like that, let's try this:

Year 0 we have 39 people.

Year 5 we have 39(2)=78 people.

Year 10 we have 78(2)=156 people.

Year 15 we have 156(2)=312 people.

Year 20 we have 312(2)=624 people.

Answer:

Option 2

Step-by-step explanation:

Given

B = (-6,1)

B' = (-3,-2)

Step 1: Substitute the original and translated coordinates into (x,y) => (x+a,y+b)

B(-6,1) => B'(-6+a , 1+b) = B'(-3,-2)

Step 2: Write two equations

-6+a = -3 => a = -3+6 = 3

1+b=-2 => b = -2-1 = -3

Hence, we can conclude that Indira wrote the equations wrong which was her first error.

Therefore, Option 2 is correct ..

Answer:

The answer is -3x^2+2x+7 ....

Step-by-step explanation:

(3x2 + 2x - 9) - (6x2 - 16)

Open the parenthesis

Keep in mind that when you will open the parenthesis the signs of 2nd bracket will be multiplied by negative sign

3x^2+2x-9-6x^2+16

Arrange the terms:

3x^2-6x^2+2x+16-9

Solve the like terms:

= -3x^2+2x+7

Thus the answer is -3x^2+2x+7 ....

= (3x²+2x-9) - (6x²-16)

= 3x² + 2x - 9 - 6x² +16

= -3x² +2x + 7

While opening the brackets, make sure you change the signs accordingly. If there is a "-" sign outside the bracket then while opening the brackets, terms inside change their signs, which means "+" becomes "-" and vice versa.

He afford 5 games at bowling alley C.

Comparing Numbers means identifying a number that is smaller or greater than the rest. We can compare numbers using different methods such as on a number line, by counting, or by counting the number of digits, using place values of the numbers, etc.

According to the topic , we know

4 games at bowling alley B need to speed [tex]4 \times 5.25 = 21 > 20[/tex]

5 games at bowling alley C need to speed [tex]5 \times 3.75 =18.75 < 20[/tex]

5 games at bowling alley A need to speed [tex]5 \times 4.25 = 21.25 > 20[/tex]

6 games at bowling alley D need to speed [tex]6 \times 3.50 = 21 > 20[/tex]

So, the answer is 5 games at bowling alley C.

Option B is correct.

He afford 5 games at bowling alley C.

Find out more information about comparison of numbers here

brainly.com/question/13505153

#SPJ2

Step-by-step explanation:

If we graph elevation vs time, the rate of change is the slope of the line.

At t = 0, h = -90.

At t = 15, h = -20.

m = (-20 − (-90)) / (15 − 0)

m = 70/15

m = 4.67

The closest answer is B.  The elevator traveled upward at a rate of 4 feet per second.

Answer: 11.18

Step-by-step explanation:

You’re substituting 5 for x in the equations...

Sqrt[x^2+4x^2]

Sqrt[5^2+4(5)^2]

Sqrt[25+4(25)]

Sqrt[25+100]

Sqrt[125]

In the provided equation, substituting x with 5 and simplifying gives us the square root of 425, which is approximately 20.6. Therefore, the estimated length of the ladder when the base is 5 ft from the wall is about 20.6 feet.

In this problem, the length of the ladder should be the square root of the sum (x)^2 and (4x)^2. In this equation, you're given that the base of the ladder is 5 feet from the wall, represented by 'x'. First substitute x with 5 into the equation: √[(5)^2 + (4*5)^2]. This simplifies to √[25 + 400] = √425. The square root of 425 is about 20.6. Therefore, if you round it to the nearest tenth, the desired length of the ladder when the base is positioned 5 ft from the wall is approximately 20.6 feet.

https://brainly.com/question/28361847

#SPJ2

Answer:

36

Step-by-step explanation:

We have to compute 4 distances and then add them up.

It may help to draw this first to see which distances to compute.

So I'm going to start with computing the distance from (0,0) to (5,12), then from (5,12) to (9,9), then from (9,9) to (12,5), and then finally from (12,5) to (0,0).

So distance from (0,0) to (5,12)

d=sqrt((5-0)^2+(12-0)^2)=sqrt(25+144)=sqrt(169)=13

Distance from (5,12) to (9,9)

d=sqrt((9-5)^2+(12-9)^2)=sqrt(4^2+3^2)=sqrt(16+9)=sqrt(25)=5

Distance from (9,9) to (12,5)

d=sqrt((12-9)^2+(9-5)^2)=sqrt(3^2+4^2)=sqrt(9+16)=sqrt(25)=5

Distance from (12,5) to (0,0)

d=sqrt((12-0)^2+(5-0)^2)=sqrt(12^2+5^2)=sqrt(144+25)=sqrt(169)=13.

Up all of our distances 13+5+5+13=(13+13)+(5+5)=26+10=36

Answer:

c. 36

Step-by-step explanation:

that is what that one says up there

Answer:

A. good

Step-by-step explanation:

it is in the range of 660-749.

Answer:

"Good"

Step-by-step explanation:

"Good" is appropriate, because the score 726 is between 660 and 749.

Answer:

The correct answer is second option  option

9¹/⁸ ˣ

Step-by-step explanation:

Points to remember

Identities

ᵃ√x = = x¹/ᵃ

√x = x¹/²

(xᵃ)ᵇ = xᵃᵇ

To find the correct option

It s given that,

(⁴√9)¹/² ˣ

By using the above identities we can write,

(⁴√9)¹/²ˣ = (9¹/⁴)¹/²ˣ     [ since ⁴√9 = 9¹/⁴]

 = 9⁽¹/⁴ * ¹/²⁾ ˣ

 = 9¹/⁸ ˣ

Therefore the correct answer is second option  option

9¹/⁸ ˣ

Answer:

[tex]a_n=9(4^{n-1})[/tex]

Step-by-step explanation:

we know that

In a Geometric Sequence each term is found by multiplying the previous term by a constant, called the common ratio (r)

In this problem we have

[tex]a_2=36\\ a_5=2,304[/tex]

Remember that

[tex]a_2=a_1(r)[/tex] -----> [tex]36=a_1(r)[/tex] -----> equation A

[tex]a_5=a_4(r)[/tex]

[tex]a_5=a_3(r^{2})[/tex]

[tex]a_5=a_2(r^{3})[/tex]

Substitute the values of a_5 and a_2 and solve for r

[tex]2,304=36(r^{3})[/tex]

[tex]r^{3}=2,304/36[/tex]

[tex]r^{3}=64[/tex]

[tex]r=4[/tex]

Find the value of a_1 in equation A

[tex]36=a_1(4)[/tex]

[tex]a_1=9[/tex]

therefore

The explicit rule for the nth term is

[tex]a_n=a_1(r^{n-1})[/tex]

substitute

[tex]a_n=9(4^{n-1})[/tex]

Answer:

an=9(4^n-1)

Step-by-step explanation:

Answer:

[tex]\boxed{OY = 6.35 m} \\\boxed{AY=19.05 m}[/tex]

Step-by-step explanation:

The centroid of a triangle always cuts a triangle perfectly at 2/3.

What I mean by this is that the line that touches the tip of the triangle and touches the median of the base is cut into one third and its other part is cut into two thirds of the whole segment. This segment is AY.

Knowing this, I can tell that OY is 1/3 of the length of AO, which is given to be 12.7 m.

To find OY, make an equation where AO and OY add up to AY.

The variable x represents the length of AY, and 1/3x represents the length of OY (because it is one-third of AY).

Solve the equation by subtracting 1/3x from both sides.

Divide both sides by 2/3.

Now we know the length of AY (x). To find the length of OY substitute this value of x into 1/3x, which represents OY.

[tex]\frac{1}{3} (19.05)[/tex]

This gives us 6.35, which is the length of OY.

The final answers are:

Answer:

d

Step-by-step explanation:

3×3×3 is 27 so that's the answer

Answer:

y=-2x+13

Step-by-step explanation:

Slope-intercept form of a line is y=mx+b where m is slope and b is y-intercept.

The slope of y=-2x-2 is -2 since m=-2.

A line that is parallel to the given line is going to have the same slope.

So we already know the equation we are looking for should be in the form y=-2x+b.

We just to need to find b.

We can use the given point on our line do that.

5=-2(4)+b

5=-8+b

8+5=b

13=b

So the equation is y=-2x+13.

Answer:

y = -2x+13

Step-by-step explanation:

The slope of the original line is -2 so you take that and plug it in with the points (4,5) in point slope form to get y-5 = -2(x-4), then you simplify to get      y-5 = -2x+8 then y = -2x+13

Answer:

B. You had a math test on Thursday

Step-by-step explanation:

B is most likely the answer because you would have a math test regardless of the weather. Teachers do stuff like that. Also I just took this quiz on APEX.

Answer:

True.

Step-by-step explanation:

If the sides of one triangle are lengths 2,4 and 6 and another triangle has sides of lengths 3,6 and 9 then the triangles are similar.