Can someone help me with this question?

Answer:

4/21

Step-by-step explanation:

It should be a porpotion

Answer:

B. 40

Step-by-step explanation:

She starts with 46 and sells half of them

That leaves her with 23 stamps left.

She then buys 17 more, 23 + 17 is 40

Answer is B

Answer:

B. 40 stamps

Step-by-step explanation:

We know that she sold half of her stamps. She started with 46 stamps.

First, find 1/2 of 46.

Multiply 1/2 and 46, or divide 46 by 2.

1/2 *46= 23

46/2=23

She sold 23 stamps, and was left with 23 stamps.

Then, she bought 17 more. If she bought more, she added to the amount she already had.

Therefore, we can add 23 and 17.

23+17=40

She has 40 stamps now.

Answer:

Base of parallelogram= 2x+3

Height of parallelogram=3x-2

Area=b*h

=(2x+3)(3x-2) = 6x^2-4x+9x-6= 6x^2+5x-6

If x=30,

6*(30)^2+5*30-6=5400+150-6=5544

Step-by-step explanation:

Answer: B.) 0.5mi

Step-by-step explanation:

Measured value = 953 mi

The greatest possible error in a measurement is defined as half the precision unit adopted when taking the measurement.

Therefore, for a measured value of 953mi;

The precision unit adopted is 1. As the measurement ignored values after the last unit value.

Therefore ; half the precision unit = 1÷ 2 = 0.5mi

The value 953 mi could be any number between:

952.5 mi to 953.4

952.5 could be rounded up to 953

953.4 could be rounded down to 953

952.5 - - - - 953 - - - - - 953.5

+0.5 - - - - 0.5

Answer:

Step-by-step explanation:

Imagine the clock as a normal circle, with the minute hand as its radius.

a. Here, we are asked for the circumference of a small arc.

Find the circumference of whole clock:

pi x r x 2 = 3.14 x 2.8 = 8.792

Now calculate the distance in just that section of the clock

36/720 x 8.792 = 1/20 x 8.792 = 0.4396

Answer:

2400

Step-by-step explanation:

Area of a trapezoid: (b₁ + b₂) / 2 * h

= (70 + 50) / 2 * 40

= 60 * 40 = 2400

Answer:

50m

Step-by-step explanation:

The model rocket is 4% of the actual rocket and it is 2m high

That means that 4%=2m

4 fits into 100, 25 times so multiply both by 25:

100%=25*2m

100%=50m

100% being the actual rocket

hope this helped!

Answer:

False

Step-by-step explanation:

The triangles are similar because the angles are the same

We know nothing about the side lengths, so we can say nothing about concurrency.  They may or may not be congruent.  

Answer:

look below:

Step-by-step explanation:

Answer: See attachment - hopeful it helps -  

I will update post once I get it back --

Step-by-step explanation: Kindly give me brainly :)

Answer:

Option D is the right option.

solution,

[tex] \frac{ac}{bc} = \frac{bc}{dc} \\ or \: \frac{18}{ m} = \frac{m}{7} \\ or \: m \times \: m = 18 \times 7(cross \: multiplication) \\ or \: {m}^{2} = 126 \\ m = \sqrt{126} [/tex]

Hope this helps..

Good luck on your assignment.

Hope

Answer:

C. [tex] AB = 5\frac{5}{7} [/tex]

Step-by-step explanation:

When two polygons are considered similar, the ratio of their corresponding sides would also be equal.

Since ∆ABC and ∆ADE are similar, [tex] \frac{AE}{AC} = \frac{AD}{AB} [/tex]

[tex] \frac{7}{4} = \frac{10}{AB} [/tex]

Cross multiply

[tex] 7*AB = 10*4 [/tex]

[tex] 7*AB = 40 [/tex]

Divide both sides by 7 to find AB

[tex] \frac{7*AB}{7} = \frac{40}{7} [/tex]

[tex] AB = \frac{40}{7} [/tex]

[tex] AB = 5\frac{5}{7} [/tex]

Answer:

B

Step-by-step explanation:

because the numbers 0-9 consist of 10 numbers,

having a 70% chance of success means that out of the 10 numbers, 7 are correct.

thus, choice B is correct as it have 7 numbers in it

(rmb to count "0" as a number!)

Answer:

Step-by-step explanation:

There are 10 numbers from 0 to 9

x  -  number of numbers that represent a success

The probablity of success:    [tex]\dfrac x{10}[/tex]

[tex]\dfrac x{10}=70\%\\\\\dfrac x{10}=\dfrac{70}{100}\\\\\dfrac x{10}=\dfrac{7}{10}\\\\x=7[/tex]

there are 7 numbers from 0 to 6

Answer:

11.5% loss

Step-by-step explanation:

Discount = 25%

SP= 1425

MP= CP+18%

Profit or loss% - ?

---------

SP= MP- 25%= MP*0.75= 1425

MP= 1425/0.75= 1900

MP= CP+18%= CP*1.18

CP= MP/1.18= 1900/1.18 ≈ 1610.17

SP< CP, so there is loss

Loss%= (1610.17- 1425)/1610.17*100%= 11.5%

Answer: y=8

Step-by-step explanation:

Since DF is bisected, it means but in half. This means DU and UF are equal in length. We can set them equal to each other to find y.

2y=16          [divide both sides by 2]

y=8

Answer:

y=8

Step-by-step explanation:

when a triangle is bisected opposite sides become equal

Both sides are the same

2y=16 divide both sides by 2

y=8

Answer:b

Step-by-step explanation:

AB should be rotated by 180° or 360°.

Rotation can be defined as the motion of an object around an axis. It is a type of transformation that includes every point of a figure and rotates it by a specific number of degrees around a given point in a particular direction.

So, according to the given figure, if rotate the line AB, 180° clockwise or 360° clockwise, it will lie on AE.

Hence, AB should be rotated by 180° or 360°.

Learn more about rotations, click;

https://brainly.com/question/1571997

#SPJ2

Answer:

(x + 2)^2 + (y - 1)^2 = 25.

Step-by-step explanation:

The centre is at (-2, 1) so the equation is:

(x + 2)^2 + (y - 1)^2  = r^2   where r is the radius.

The radius is the distance from the centre to the point (-5, -3).

Using the distance formula:

r = √ [(-3- 1)^2 + (-5 - -2)^2]

and r^2 = (-3- 1)^2 + (-5 - -2)^2

= (-4)^2 + (-3)^2

= 16 + 9

= 25.

Answer:

pentagon has the sum of interior angles as 540

Step-by-step explanation:

i hope this will help you :)

Answer:

pentagon

Step-by-step explanation:

The sum of the interior angles of a triangle (in a plane) is 180°, the sum of the interior angles of a quadrilateral is 360°, the sum of the interior angles of a pentagon is 540°, the sum of the interior angles of a hexagon is 720°, and in general, the sum of the interior angles of an n-gon (a polygon with n sides) is 180°× (n-2).

JUST SOME EXTRA POINT YK

Answer:

6/18

Hope this helps :))

Answer:

a. 1/3

b. 7/9

Step-by-step explanation:

its adding and reducing the number you get in the fraction

a is 6/18 reduced

b is 14/18 reduced

Answer:

12

Step-by-step explanation:

An isosceles triangle are three sides of two sides being equal in lengths.

If that is the case, the two opposite slanting sides which are equal, must be longer. Invariably, the third side is 12.

The length of the third side of an isosceles triangle will be [tex]12[/tex] .

An isosceles triangle is the one which have two equal sides.

We have,

One side [tex]=2[/tex]

Second side [tex]=12[/tex]

So,

We know that,

In this condition,

Length of the third side should be [tex]12\ cm[/tex] Because if we take third side as [tex]2[/tex] cm then

The sum of two sides [tex]= 2+12= 14 cm[/tex]  

So,

[tex]2 < 12 < 14[/tex]

Hence, we can say that the length of the third side of an isosceles triangle will be [tex]12[/tex] .

To know more about an isosceles triangle click here

https://brainly.com/question/14662695

#SPJ3

Answer: y-2=1/4(x-1)

Step-by-step explanation:

The formula for point-slope is y-y₁=m(x-x₁). Since we are given the slope m, we can fill that in. We are also given the point (x₁,y₁). We can also fill that in.

y-2=1/4(x-1)

Answer:

I hope it will help you...

Answer:

so x=3

Step-by-step explanation:

-28=7(x-7)

opening the brackets by multiplying

-28=7x-49

adding 49 on both sides

-28+49=7x-49+49

21=7x

dividing 7 on both sides

21/7=7x/7

x=3

i hope this will help you :)

Answer:

-28=7(x-7)

First expand the terms on the right side

That is

-28 = 7x - 49

Group like terms

7x = -28 + 49

7x = 21

Divide both sides by 7

7x/7 = 21 /7

x = 3

Hope this helps

2 liters of paint / 1/3 liter  per wall = 2 x 3/1 = 6/1 = 6 walls

Answer:

c.5p

Step-by-step explanation:

we know that p + 4p can be simplified as 5 p.

Therefore when compared if theses 2 are equal or not , p+4p=5p

we can simply add p+4p(as p is 1p) which gives 5 p

Answer:

5p

Step-by-step explanation:

Answer:

y = 13

Step-by-step explanation:

Step 1: Distribute

3/2y - 3/2 = y + 5

Step 2: Subtract y on both sides

1/2y - 3/2 = 5

Step 3: add 3/2 on both sides

1/2y = 13/2

Step 4: Divide both sides by 1/2

y = 13

Answer:

y = 13.

Step-by-step explanation:

3/2(y-1) = y+5

3/2y - 3/2 = y + 5

3/2y - y = 5 + 3/2

1/2y = 6 and 1/2; 6.5; 13/2

y = 13.

To check out work...

3/2(13 - 1) = 13 + 5

3/2(12) = 18

3 * 6 = 18

18 = 18

On a number line, all you need to do is plot a point where it says 13. On a cartesian plane, you would have a horizontal line that expands infinitely in each direction, where y = 13.

Hope this helps!

Answer:

She didn't do the multiplication of 7 times the fraction 5/8 by using distributive property.

so the correct answer is the one that looks like:

Seven was not multiplied by StartFraction 5 over 8 EndFraction.

in your list of options.

Step-by-step explanation:

If one has a stack of seven books each [tex]2\frac{5}{8} \,\,in[/tex] thick, one should first convert the mixed number to an addition of an integer plus a fraction

[tex]2\frac{5}{8} =(2+\frac{5}{8})[/tex]

as she did, and then multiply 7 by the addition, making sure to use distributive property and multiply both terms:

[tex]7\,\,(2+\frac{5}{8})=7\,*\,12+7\,*\,\frac{5}{8}=14+\frac{35}{8}[/tex]

and she didn't do the multiplication of 7 times the fraction 5/8

Answer:

(0,-9)

Step-by-step explanation:

Well first we need to solve the rowing eqation by combining like terms and separating x.

[tex]3x - 9 = 4x - 9[/tex]

So let’s do -3x

-9 = x -9

+9

x = 0.

So if x is 0 we can plug that in one of the equations.

y = 4(0) - 9

y = -9

So the solution where the 2 lines meet is at (0,-9)

For more proof look at the image below.

Answer:

≈ 5.9

Step-by-step explanation:

AC/3= 5.5/2.8

AC= 5.5*3/2.8

AC ≈ 5.9

Answer:

(5,-3)

Step-by-step explanation:

Rewrite the equation in vertex form

y =-(x-5)^2 - 3

You take the value of -5 (that would be your x value) and change it to the opposite sign -> +5

Then you take -3 (that would be your y value) and take it as it is

therefore the answer is (5, -3)

Answer:

(-9, 0)

Step-by-step explanation:

To find the midpoint of the segment, we use the mathematical formula below;

(x,y) = {(x1+x2)/2 , (y1+y2)/2}

From the question;

(x1,y1) = (10,16)

(x2,y2) = (-28,-16)

Substituting these values into the equation we wrote above, we have;

(x,y) = (10-28)/2 , (16-16)/2

(x,y) = (-18/2, 0/2) = (-9,0)