be smart and help me please i can’t fail again i will give branliest

Answer:

Vertical angles are congruent

9514 1404 393

Explanation:

The quadrilateral will be a parallelogram if the diagonals bisect each other. That will be the case if the sums of their end-point coordinates are the same.

  A + C = (-3, 6) +(9, -9) = (6, -3)

  B + D = (6, 0) +(0, -3) = (6, -3)

Both diagonals have their midpoint at (3, -1.5), so the diagonals are mutual bisectors. The figure ABCD must be a parallelogram.

___

The midpoint of AC is (A+C)/2 = (6, -3)/2 = (3, -1.5).

Answer:

The decimal number system in use today was first recorded in Indian mathematics.

Step-by-step explanation:

In the classical period of Indian mathematics (400 AD to 1200 AD), important contributions were made by scholars like Aryabhata, Brahmagupta, Bhaskara II, and Varāhamihira. The decimal number system in use today was first recorded in Indian mathematics.

Answer:

Decimal point system.

Step-by-step explanation:

Answer:

4h^2-6h-7

Step-by-step explanation:

[tex](4h^{2} -h+5) - (8h-3h+12)\\4h^{2} -h+5 - 8h+3h-12\\4h^{2}-9h+3h-7\\4h^{2}-6h-7\\[/tex]

Answer:

She drew the graph too steep, if she is going down at a constant rate of 300 ft per hour, at 1 hour she would be at 2,700 ft. it would take her about 10 hours to get down the mountain.

Answer:

676

Step-by-step explanation:

I think this is an arithmetic series, so

Sn = 26/2[2(1) + (26 - 1)2]

Sn = 13[2 + 50]

Sn = 13[52]

Sn = 676

Answer:

676

Step-by-step explanation:

A = 1

B = 3

C = 5

D = 7

...

Z = 51

              1   + 3    + 5   + 7    + 9 + 11  + 13  + 15  + 17  + 19 + 21 + 23 + 25

(+)       + 51 + 49 + 47 + 45 + 43 + 41 + 39 + 37 + 35 + 33 + 31 + 29 + 27

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

          52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52

13 * 52 = 676

Answer: 676

Answer:

Step-by-step explanation:

Answer:

oligarchy

Step-by-step explanation:

Answer:

its B and E

Step-by-step explanation:

I already did the review

Answer:

she not with him tonight

she not with Jim tonight

she in the gym tonight

Answer:yes

Step-by-step explanation:

Answer:

EF=FC =22 ( diagonals bisect each other )

then EC=2 EF =2 x 22 =44

Answer:

(x-4)² + (y-3)² =29

Step-by-step explanation:

The equation of a circle is

(x-h)² + (y-k)² = r², where (h, k) is the center of the circle and r is the radius.

In this circle, the center is at (4, 3)  

(x-4)² + (y-3)² = r²

and we have point (-1 ; 1)

r²=(-1-4)² + (1-3)² = 25+4=29

(x-4)² + (y-3)² =29

Answer:

(x - 4)² + (y - 3)² = 29

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here (h, k ) = (4, 3 )

The radius r is the distance from the centre to a point on the circle.

Calculate r using the distance formula

r = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (4, 3)

r = [tex]\sqrt{(4+1)^2+(3-1)^2}[/tex]

  = [tex]\sqrt{5^2+2^2}[/tex]

   = [tex]\sqrt{25+4 }[/tex] = [tex]\sqrt{29}[/tex]

Then

(x - 4)² + (y - 3)² = ([tex]\sqrt{29}[/tex] )² , that is

(x - 4)² + (y - 3)² = 29 ← equation of circle

Answer:

9/8 or 1.125

Step-by-step explanation:

multiply 6/1 * 3/16 = 18/16

divide both by 2

9/8

Answer:

Step-by-step explanation:

We know the formula for a rectangular prism is length × width × height

We also know all the sides so we can rewrite the formula replacing variables.

The length is 8, the width is 2[tex]\frac{1}{2}[/tex] and the height is 2[tex]\frac{1}{2}[/tex]

8 × 2[tex]\frac{1}{2}[/tex] × 2[tex]\frac{1}{2}[/tex]

Multiply which ever way is easy for you. I am just multiplying from left to right.

8 × 2[tex]\frac{1}{2}[/tex] = 20

20 × 2[tex]\frac{1}{2}[/tex] = 50

Now we get 50. Before we put our answer as 50, there are two more steps.

First we need to add the measurement unit which is feet or ft

We also need to add ³ since it is volume

50 ft³ is our final answer

Step-by-step explanation:

here's your solution

==> Total number of students in class = 45

==> percentage of girls in class = 60%

==> number of girls in class = (60/100)*45

==> number of girls = 27

==> number of boys = 45 - 27

==> number of boys = 18

hope it helps

Answer:

27

I'm not sure how to explain it

Answer:

A and D

Step-by-step explanation:

It can't be B because of the negative...

It would have to be less than 3.3 since 0.2 is less than and the 3.3 is negative

A and D are the same?

-3.3 * 0.2 = -0.7

Answer: 7/45, 7/18

Step-by-step explanation:5/9 - 2/5 = 25/45 - 18/45 = 25 - 18/45 = 7/45

and 1/2 - 1/9 = 9/18 - 2/18 = 7/18

Answer:

0.625

Step-by-step explanation:

5÷8=0.625

This is equal to the number of pizzas Celia ate.

plz mark me as brainliest.

Answer:

0.625

Step-by-step explanation:

Fraction of pizza she ate = 5/8

5/8 x 125 =  625/100= 0.625

I hope im right!

Answer:

455 ( I think )

Step-by-step explanation:

Lets start with the red shape.

The triangle on top is 5x3, and the equation for a triangle is base•height•1/2

So each triangle equals 7.5, as 15/2=7.5. Remember there are 2 triangles so the total of both triangles is 15.

The front side of the red shape is 6x5, which equals 30.

Same with the back.

The side though, is 3x6, which equals 18.

So 15 (both triangles)+60 (the front and back of the shape)+18 (the side)= 93

The red shape is 93 inches cubed.

The green shape is a rectangular prism.

The sides, are both 3x7, which equals 21. Remember there are 2 sides so together they equal 42.

The next part is 3x16= 48. There are 2 of these so it equals 96.

The top and bottom is 7x16=112, which is 224.

42 (sides) + 96 (front and back) + 224 (top and bottom)= 362

The green shape is 362 inches cubed.

362+93=455 inches cubed as a total

(I think)

Answer:

the answer is approximately normal

Step-by-step explanation:

Answer:

well well well

Step-by-step explanation:

dont cheat on live classwork pls

Answer:

descending order, meaning standard form.

Step-by-step explanation:

Ex: x^2-5x+2

or

Ex: 2x^3 -5x^2 -2x +3

tell me if it doesn't make sense

your answer should be three.

~iwa-chan

Answer:

3

Step-by-step explanation:

to find the parallel  of this line we need to find function with same slope

1) x+y=-2 ⇒ y=-x-2

2)x=1    

3) x-y=5  ⇒ y=x-5

4)y=1

so third

Consider the below figure attached with this question.

Given:

A, B & C lie on a straight line. D, C & E lie on a different straight line.

[tex]\angle y=117^\circ,\angle z=63^\circ[/tex]

To find:

The value of x.

Solution:

A, B & C lie on a straight line.

[tex]m\angle ABD+m\angle DBC=180^\circ[/tex]    (Linear pair)

[tex]y+m\angle DBC=180^\circ[/tex]

[tex]m\angle DBC=180^\circ-y[/tex]

According to the exterior angle theorem, the measure of an exterior angle of a triangle is equal to the sum of two opposite interior angles.

[tex]m\angle DBC+m\angle BDC=m\angle BCE[/tex]        (Exterior angle theorem)

[tex]180^\circ-y+z=x[/tex]

[tex]180^\circ-117^\circ +63^\circ =x[/tex]

[tex]126^\circ =x[/tex]

Therefore, the value of x is 126 degrees.

Answer:

£8.4

Step-by-step explanation:

Since she swapped half and now has £4.20, then multiply that by 2

                                                     4.20 × 2 = 8.4

Alex initially had £8.4

The initial amount of Alex's 2p coins is £8.40

Let the initial worth of 2p coins = y

We can then solve for the worth of y, which is the titla amount Alex had initially ;

Therefore, the amount of money Alex had initially is £8.40

Learn more : https://brainly.com/question/18109354