Please answer this correctly

Answer:

a

Step-by-step explanation:

By substituting x = 5i in to the equation y = x+1/2-x, we find that y = 1/2.

To solve for y in the equation y= x+1/2-x given that x= 5i, we simply substitute x with 5i.

So, y = 5i + 1/2 - 5i

The term 5i in the numerator and the denominator cancels out so we are left with: y = 1/2

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Answer:

12 ft long by 5½ ft wide  

Step-by-step explanation:

1. Set up an expression for the area.

   Let l = the length of the rectangle

and w = the width. Then

     2w = twice the width and

2w + 1 = 1 more than twice the width. Then

        l = 2w + 1

The formula for the area of a rectangle is  

                 A = length × width

                 A = lw

               66 = (2w +1)w

               66 = 2w² + w

2w² + w - 66 = 0

2. Solve the quadratic for w

2w² + w - 66 = 0

(a) Multiply the first and last terms

2 × (-66) = -132

(b) List all the factors of 132

 1  132

2   66

3    42

4    33

6    22

11     12

(c) Find a pair of factors whose product is -132 and whose sum is 1.

After some trial and error, you will choose -11 and +12,

-11 × 12 = -132 and -11 + 12 = 1.

(d) Rewrite w as -11w + 12w

2w² - 11w + 12w - 66 = 0

(e) Factor by grouping

w(2w - 11) + 6(2w - 11) = 0

(w + 6)(2w - 11) = 0

(f) Use the zero product theorem

w + 6 = 0     2w - 11 = 0

     w = -6          2w = 11

                           w = 5½

We reject the negative answer, so w = 5½ ft

3. Calculate l

l = 2w + 1 = 2 × 5½ + 1 = 11 + 1 = 12 ft

The rectangle is 12 ft long and 5½ ft wide.

The dimensions of the rectangle are length = 12 ft and wide = 5½ ft

The area of the triangle is the product f length and breath.

Calculation:-

  Let l = the length of the rectangle

        w = the width.

According to the question: length     l = 2w + 1

   The area of a rectangle is  

            ⇒   66 = (2w +1)w

             ⇒      66 = 2w² + w

             ⇒ 2w² + w - 66 = 0

wide=5.5 ft = 5½ ft

lenght =12 ft

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Answer:

0(0,2)

Step-by-step explanation:

0(0,2)

0(0,-6)

0(2,0)

0(-6,0)

The line perpendicular to the line AB passes through the point  (0, 2)

Two geometric objects are perpendicular if their intersection forms right angles at the point of intersection called a foot.

The condition of perpendicularity may be represented graphically using the perpendicular symbol, ⟂.

Given is a graph of a line, we need to find the which point on the y-axis lies on the line that passes through point C and is perpendicular to line AB,

From the given figure in the question it is observed that the line AB passes through the points (-2, 4) and (2, -8)

The coordinate of point C is, (6, 4)

Obtain the slope of the line AB.

-8-4 / 2+2 = -3

Consider the slope of AB as, m1

m1 = -3

Consider a line which is perpendicular to the line AB passing through the point C.

Assume the slope of the perpendicular line as m2,

The product of the slope of two mutually perpendicular lines is always equal to -1

The equation formed for the slope is as follows: 1/3

Finding the equation of the line,

y-y₁ = m(x-x₁)

3y - x = 6

Therefore, the equation of the perpendicular line is 3y - x = 6

In option 3 it is given that the line perpendicular to AB passes through the point (0, 2)

The equation of the line which is perpendicular to AB is 3y - x = 6

Substitute for in the above equation

3y - (0) = 6

3y = 6

y = 2

From the above calculation it is concluded that the line passes through the point (0, 2).

This implies that option 3 is correct.

Hence, the line perpendicular to the line AB passes through the point  (0, 2)

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Answer:

Step-by-step explanation:

Remove the brackets.

x + y + x + y + 3y + 15

Collect the like terms

2x + 5y + 15

This should be your answer.

Answer: 2x + 5y + 15

[tex]3.5 \times 3.5 = 12.25 \: for \: are \\ 3.5 \times 4 = 14 \: for \: perimeter[/tex]

Answer:

Refer to pics

Step-by-step explanation:

Vertical angles are two angles which are vertically opposite and have the same measure. Thus, the two angles are to be congruent.

Vertical angles are often formed when two straight lines intersect at a point.

From the given question, the steps to prove that angle 2 and angle 4 are congruent are:

With reference to the sketch attached to this answer;

<AOC + <AOD + <BOC + <BOD = [tex]360^{o}[/tex] (sum of angle at a point)

Thus,

<AOC + <AOD = [tex]180^{o}[/tex] (supplementary angle property)

also,

<BOC + BOD = [tex]180^{o}[/tex] (supplementary angle property)

So that;

<AOD ≅ <BOC (vertically opposite angle property)

Therefore,

<2 and <4 are congruent (vertically opposite angle property)

It can be concluded that vertically opposite angles are equal in measure, thus congruent.

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Answer:

They are orthogonal.

Step-by-step explanation:

u = <3, 0> v = <0, -6>

u.v =|u| |v|cosθ

if u.v is 0 this means that cos θ is 0 so θ = 90°

[tex]\theta=cos^{-1}\frac{u.v}{|u|\ |v|}[/tex]

If u.v = 0 then they are orthogonal.

If u.v ≠ 0 then they are neither parallel nor orthogonal

If u.v ≠ 0 and u = kv where k is constant then they are parallel

u.v = 3×0+0×-6

⇒u.v = 0

They are orthogonal.

Answer:

x=17

Step-by-step explanation:

In circle A, ∠BAE ≅ ∠DAE.

∠BAE = 3x-24

∠DAE = x+10

According to the given condition:

∠BAE ≅ ∠DAE.

3x-24 = x+10

Combine the like terms:

3x-x=10+24

2x=34

Divide both the sides by 2

2x/2 = 34/2

x=17

Therefore the value of x = 17

The correct option is 17....

Answer:

The answer is 17 units on edg

Step-by-step explanation:

Answer:

The area of the shaded region is [tex]8\ units^{2}[/tex]

Step-by-step explanation:

step 1

Find the curved area ACD (formed by segment AD, segment DC and the curved segment AC)

we know that

The curved area ACD is equal to the curved area ACB

The curved area ACD is equal to the area of the square minus the area of a quarter of circle

[tex]ACD=b^{2} -\frac{1}{4}\pi b^{2}[/tex]

we have that

[tex]b=4\ units[/tex]    

substitute

[tex]ACD=4^{2} -\frac{1}{4}(3)(4)^{2}[/tex]

[tex]ACD=16 -12=4\ units^{2}[/tex]

step 2

Find the area of the shaded region

The area of the shaded region is equal to the area of the square minus two times the curved area ACD

so

[tex]4^{2} -2(4)=16-8=8\ units^{2}[/tex]

Answer:

1.5 = 1,500

Step-by-step explanation:

I actually converted 1.5 to milliliters.

That is how I got 1,500.

The bottle holds 1500 milliliters soda.

We know that, 1 liter = 1000 milliliters

So, to convert something from liter to milliliter, we have to multiply the given value by 1000.

Given, the bottle of soda holds 1.5 liters of soda.

So, we have to multiply 1000 with that to get the required value.

∴ 1.5 liters = (1.5 × 1000) milliliters

                 = 1500 milliliters

The required quantity of soda is 1500 milliliters.

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Answer:

21 times

Step-by-step explanation:

To find out how many times the spinner would land on the 7, take the probability times the number of times spun

250 * .083

20.75

It would land on 7 approximately 21 times

Answer:

The spinner will land on 7 approximately 21 times

Step-by-step explanation:

According to your question. The probability of spinning a 7 on the spinner is 0.083 (8.3%). You spin the spinner 250 times and you would like to know how many times the spinner would land on 7 based on the previous probability. To do this we will need to multiply the probability of the spinner landing on 7 in one spin with the amount of total spins.

[tex]250*0.083 = 20.75[/tex]

As shown above we can see that with a probability of 8.3% on 250 spins, the spinner will land on 7 approximately 21 times.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

Answer:

=8 yd³ 22 ft³ 1712 in³

Step-by-step explanation:

To perform the indicated operation we need to convert the given measurements of volume to common units.

1 yd = 3 ft

1 yd³=27ft³

1 ft³=1728 in³

Thus 9 yd³=(27×9)ft³

=243 ft³

113 in³ into ft= 113/1728

9 yd³ 113 in³= 243  113/1728 ft³

4 ft³ 129 in³= 4 129/1728 ft³ = 4 43/576 ft³

Performing the operation given in the equation:

243  113/1728 ft³ - 4 43/576 ft³ = 238  1712/1728 ft³

238 ft³= 8 yd³ 22 ft³ + (1712/1728) × 1728

=8 yd³ 22 ft³ 1712 in³

Answer:

  x^4 + 8x          

  -----------------

    (4-x^3)^2

Step-by-step explanation:

d /dx  (x^2/(4-x^3)​)

When we differentiate a fraction u/v

df/dx = u/v

         =  v du/dx-u dv/dx

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

                         v^2

we know u = x^2   so du/dx = 2x

               v = (4-x^3)  so dv/dx = -3x^2

d dx =   (4-x^3) (2x)- x^2 ( -3x^2)

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

                   (4-x^3)^2

Combining terms

           (8x-2x^4) --3x^4

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

                   (4-x^3)^2

           8x-2x^4 +3x^4

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

                   (4-x^3)^2

             x^4 + 8x          

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

                   (4-x^3)^2

Answer:

The y-intercept is located at (0, -6/7)

Step-by-step explanation:

First, we should convert this equation from Standard Form(ax+by+c=0) into Slope-Intercept Form(y = mx+b), with b being the y-value of the y-intercept.

Work:

3x+7y+6=0

First, isolate the variables by subtracting 6 from both sides to keep the equation equal

3x+7y = -6

Next, isolate the y-variable by subtracting 3x from both sides to keep the equation equal

7y = -3x - 6

Then, divide by +7 on both sides to keep the equation equal and to simplify the left side even more, to completely isolate the variable

y = -3x/7 -6/7

The y-intercept is located at (0, -6/7)

Answer:

Ten more than x x + 10

Step-by-step explanation:

Answer:

No.

10-x and x-10 are only the same when x=10.

They are not the same because subtraction is not commutative.

Step-by-step explanation:

A number less than 10 is 10-x .

The difference of a number and 10 means x-10.

10-x is not the same as x-10

We can find out when they are the same by solving:

10-x=x-10  

Add x on both sides:

10=2x-10

Add 10 on both sides:

20=2x

Divide both sides by 2:

10=x

So they are only the same when x=10.

It is mainly not an identity because subtraction isn't commutative.

Answer:

its c

3 : 7

3/7

Step-by-step explanation:

Answer:

3/7

Ratio is explained in sentence: For every 3 cups of chocolate, she added 7 cups of milk.

This is another way to say/show a ratio. It is also said as: 3:7, 3/7, and 3 to 7

Answer:

Please see attached image

Step-by-step explanation:

An analysis of the expression can be seen in the image below

See attached figure

Answer:

(x-5) (x+1)

Step-by-step explanation:

x^2 -4x-5

What 2 numbers multiply to -5 and add to -4

-5*1 = -5

-5+1 = -4

(x-5) (x+1)

Answer:

1.61

Step-by-step explanation:

1 mile × (5280 ft / 1 mile) × (1 kilometer / 3280.84 ft) = 1.61 kilometers

To convert miles to kilometers, divide the number of feet in a mile (5,280) by the number of feet in a kilometer (3,280.84). This calculation reveals that there are approximately 1.61 kilometers in a mile, a conversion factor that facilitates precise and efficient measurement conversions.

The question asks how many kilometers are in a mile, given that there are 3,280.84 feet in a kilometer and 5,280 feet in a mile. To find the answer, you can use the information that 1 kilometer equals 3,280.84 feet. Therefore, to convert feet to kilometers, you divide the number of feet by 3,280.84.

To find how many kilometers are in a mile, you follow these steps:

To the nearest hundredth, there are 1.61 kilometers in a mile. This conversion is useful for making quick and accurate estimates between the two units of measurement commonly used in many parts of the world.

Answer:

it is C

Step-by-step explanation:

Answer:

The is A. Not c

Step-by-step explanation:

Answer:

a) Adding -5x on both sides of the equation to remove the smaller x-coefficient

b) Adding -4 on both sides will remove the constant from the right side of the equation

Step-by-step explanation:

Given equation:

5x + (−2) = 6x + 4

a) What tiles need to be added to both sides to remove the smaller x-coefficient?

Smaller x-coefficient is 5x to remove the smaller x-coefficient

So, Adding -5x on both sides of the equation to remove the smaller x-coefficient

b) What tiles need to be added to both sides to remove the constant from the right side of the equation?

the constant on right side is 4

Adding -4 on both sides will remove the constant from the right side of the equation

Answer:

What tiles need to be added to both sides to remove the smaller x-coefficient?

✔ 5 negative x-tiles

What tiles need to be added to both sides to remove the constant from the right side of the equation?

✔ 4 negative unit tiles

What is the solution?

✔ x = –6

Answer:

[tex]4\sqrt{2}[/tex] which is none of your choices....

Did you mean (8,-3) and (4,-7)?

Step-by-step explanation:

We need to first find the distance between the x's.

Then the distance between the y's.

The distance between the x's is 8-4=4.

The distance between the y's is -3-(-7)=4.

So the distance between two points [tex](x_1,y1)\text{ and }(x_2,y_2)[/tex] is [tex]\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}[/tex].

So we already found x1-x2 and y1-y2 so now we have:

[tex]\sqrt{(4)^2+(4)^2}[/tex]

[tex]\sqrt{16+16}[/tex]

[tex]\sqrt{2(16)[/tex]

[tex]\sqrt{16}\sqrt{2}[/tex]

[tex]4\sqrt{2}[/tex]

Answer:

27/40

Step-by-step explanation:

We want to isolate the variable c. In order to do so, we have to subtract 1/8 from both sides. Then, on the left side, we have c, and on the right side we have 4/5-1/8. The fractions 4/5 and 1/8 do not have a common denominator, so we need to multiply 4/5 by 8/8 and 1/8 by 5/5 in order to reach a common denominator of 40 (5 and 8's least common multiple). Then, we get 32/40-5/40, or 27/40.

Side note: we are able to multiply by 8/8 and 5/5 because both of those fractions equal 1.

Answer:

2.4 rad

Step-by-step explanation:

To convert degree measure to radian measure

radian measure = degree measure × [tex]\frac{\pi }{180}[/tex]

Thus for 140°

radian = 140 × [tex]\frac{\pi }{180}[/tex] = [tex]\frac{7\pi }{9}[/tex] ≈ 2.4

Answer:

7π/9

Step-by-step explanation:

Degrees To Radians : × · π/180

Radians To Degrees : × · 180/π

Plug into Equation And Solve: 140π/180

Simplify: 7π/9

Answer:

A) 46 mph

Step-by-step explanation:

Step 1: To find the speed, you need to find the distance and time to travel between Chicago and Cleveland.

Distance = 354 miles

Time = 9: 50 am to 5: 30 pm

Time = 7 hours 40 minutes

Step 2: Convert time to hours

1 hour = 60 minutes

40 minutes = 60/40 = 2/3 hours

Step 3: Find the speed

Speed = Distance/Time

Speed = 354/7 + 2/3

Speed = 1062/23

Speed = 46.17 miles per hour rounded off to 46 mph

Therefore, A is the correct answer.

!!

Answer:

By mean, find the average. Add them all up and divide by how many numbers are there.

22+37+49+15+92= 215

215/5= 43.

Therefore, the answer is D, 43.

To find the mean, you add up all the values and then divide by the number of values. In this case, the mean is 43, which corresponds to option D.

To find the mean (average) of a set of data values, you sum all the values and then divide by the total number of values. In this case, you have the following data values: 22, 37, 49, 15, and 92.

Mean = (22 + 37 + 49 + 15 + 92) / 5

Mean = (215) / 5

Mean = 43

So, the mean of the given data values is 43.

The correct answer is D. 43.

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Answer: 1/21 of the bag

Step-by-step explanation:

If only one person eats the meal they are consuming 1/3 of a bag of potatoes. However if more than one person is eating the potatoes we need to multiply 1/3 by the reciprocal of how many people are eating.

For example:

2 people 1/3*1/2=1/6

3 people 1/3*1/3=1/9

So then we apply this principle for seven people.

7 people 1/3*1/7=1/21

We can check our answer by working backwards

1/21*7=7/21=1/3

So each person got 1/21 of the bag.

Answer:

x = -30

cos(x - 30) = ½

Step-by-step explanation:

Look at the picture

Answer:

y = - 5x - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

here m = - 5 and b = - 4, hence

y = - 5x - 4 ← equation of line