PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS

Answer:

1m=100cm

Step-by-step explanation:

do it correctly, sooo ya

The equation ,[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex] represents a conic. The discriminant is is -31 , so the represents an ellipse .

A curve obtained by a cone and a plane is called conic .

Here given equation is

[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex]

we know that discriminants of equation

[tex]$$A x^{2}+B x y+C y^{2}+D x+E y+F=0$$[/tex]

is [tex]$$D=B^{2}-4 A C$$[/tex]

and if

D<0  it's ellipse

D=0 it's parabola

D>0 It's  hyperbola

Here, the is

[tex]$$D=5^{2}-4(-2)(-7)=-31$$[/tex]

Hence it's an ellipse

The equation ,[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex] represents a conic. The discriminant is is -31 , so the represents an ellipse .

To know more about conic visit :https://brainly.com/question/3456995

Answer:

-31 and ellipse

Step-by-step explanation:

on edge :)

I don't know what it's says

Answer:

  14

Step-by-step explanation:

The triangle inequality is usually expressed as ...

  a +b > c

for any permutation of a, b, c.

Here, that would mean ...

  1 + 14 > c

  c < 15

The largest whole-number value that the third side (c) can have is 14.

_____

Additional comments

Some authors write the triangle inequality as ...

  a +b ≥ c

If you use that version, the longest side could be 15. Such a "triangle" would look like a line segment, and have zero area.

__

We can also check the shortest length:

  c +1 > 14

  c > 13

The smallest whole-number value for the shortest side is also 14. That is, the only triangle with whole-number side lengths of 1 and 14 will be an isosceles triangle with two sides of length 14.

Answer:

80

Step-by-step explanation:

i gotchuuuuu

okok so a really easy way that this can be done is by not doing the full trapezoid, but splitting it up into 2 triangles and 1 rectangle

area of triangle: 1/2BH

area of rectangle: LW

Ookie so first the triangles:

both have the exact same measurements:

7 is the base, and the height is 8. Even tho it doesn't say 8 on one of them, we can visually see that it is the same height.

So, for BOTH triangles, 8*7=56, divided by 2=28.

Now, the rectangle:

width is 3, and length is 8.

8*3=24.

ADD TOGETHER: 28+28+24=80

AREA=80

Answer:

80

Step-by-step explanation:

area of the two triangles

= (7x8)/2x2

= 56

area of the rectangle

= 8x3 = 24

area of the trapezoid

= 56+24

=80

.7 * 38.5 = original price

.7 * 38.5 = $26.95

Answer:

there are 12 in a dozen so in 2 there will be 24 so 14400/24 is 600 so 600 an orange.

Step-by-step explanation:

Answer: It should be 270 ml

Step-by-step explanation:

To find 3/8 of 720, we need to know 1/8

Divide 720 by 8, this gives you 90

Now multiply 90 by 3 to get 3/8

Answer is 270 ml

Answer:

square root graph

Step-by-step explanation:

this is the graph given by a square root function

Answer:

Step-by-step explanation:

Givens

Greeting Card = 3.79

Total Cost = 5.11

Post cards = x

Equation

Total Cost = Greeting Card + 4x

Solution

Substitute the gives into the equation

5.11 = 3.79 + 4x                       Subtract 3.79 from both sides

5.11 - 3.79 = 3.79 - 3.79 + 4x  Combine

1.32 = 4x                                  Divide by 4

1.32/4 = 4x/4

x = 33

Each post card costs 0.33 dollars

Answer:

The answer is B- 10h( h+3+5j) AND C- 2(5h+15+25j)

Answer:

I think 36y+x

Step-by-step explanation:

I multiply then add X

This is as far as I can simplify

Sry If I am wrong

Answer:

B.(4,10)

Step-by-step explanation:

Its where the 2 lines cross at

Answer:

12

Step-by-step explanation:

[tex] \frac{4}{3} = \frac{x}{9} \\ \\ \implies \: 3x = 4 \times 9 \\ \\ \implies \: 3x =36 \\ \\ \implies \: x = \frac{36}{3} \\ \\ \implies \: x =12[/tex]

Answer:

12

Step-by-step explanation:

or;4/3=X/9

or;3x=4×9

or;3x=36

or;X=36/3

Therefore;X=12

Answer:The solution is in the attached file

Step-by-step explanation:

Answer:

See Below

Step-by-step explanation:

The left side of the equation HAS TO BE GREATER THAN 3

So we take each ordered pair (x,y), plug it into the expression of left side of inequality and see which one is GREATER THAN 3. That's our answer.

A:

0.5x - 2y

0.5(-2) -2(0.5) = -2

NO

B:

0.5x - 2y

0.5(2) -2(1) = -1

NO

C:

0.5x -2y

0.5(2) -2(-1) = 3

NO

D:

0.5x -2y

0.5(-2) -2(-0.5) = 0

NO

None of them are solutions. C would have been a solution if the inequality had an "EQUAL SIGN" -- but it doesn't. Maybe the question is wrong, but if the question is right, then there is no correct answer.

Answer:

a = 92° , b = c = 143°

Step-by-step explanation:

a and 88° are same- side interior angles and sum to 180° , that is

a + 88° = 180° ( subtract 88° from both sides )

a = 92°

b and 37° are same- side interior angles and sum to 180° , then

b + 37° = 180° ( subtract 37° from both sides )

b = 143°

b and c are corresponding angles and are congruent , then

c = b = 143°

Answer:

true

Step-by-step explanation:

true because it is right

Answer:

B. True

Step-by-step explanation:

The initial value, or y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point at which the line crosses the y-axis.

Answer:

see explanation

Step-by-step explanation:

the 2 angles are on opposite sides of the transversal  and outside the parallel lines.

the 2 angles are alternate exterior angles

Answer:

65

Step-by-step explanation:

26/2 = 13

5 x 13 = 65

Have an amazing day!

PLEASE RATE!

Answer:

50.24 cm^2

Step-by-step explanation:

The formula for the area of a circle is A = πr^2

The radius is half of the diameter so r = 4

So now you can solve:

A = 3.14(4)^2

= 50.24 cm^2

Solution :

Let,

We know that,

[tex]{ \longrightarrow \bf \qquad \: (AB) {}^{2} +( BC) {}^{2} = (AC) {}^{2} }[/tex]

[tex]{ \longrightarrow \sf \qquad \: (AB) {}^{2} +( 4) {}^{2} = (5) {}^{2} }[/tex]

[tex]{ \longrightarrow \sf \qquad \: (AB) {}^{2} = (5) {}^{2} - ( 4) {}^{2} }[/tex]

[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{(5) {}^{2} - ( 4) {}^{2}} }[/tex]

[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{25 - 16 }}[/tex]

[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{9 }}[/tex]

[tex]{ \longrightarrow {\pmb {\bf\qquad \: AB = 3}}}[/tex]

Therefore,

Answer:

0.0073

Step-by-step explanation:

<3

Answer:

0.0025

Step-by-step explanation:

This is because , you have the number 75, and dividing that by 3 is 25, but since our number is 0.75, that means we are adding the 2 zeros from our 300 and add it on to be to 0.0025, this won’t work in some situations.

Hope that helps!

Answer:

89

Step-by-step explanation:

195+-25=170

170+-81=89

Hope this helps:)

Pls give brainliest.

Answer:

The answer is 13.25 I'm so sorry if its incorrect please let me know so I can fix it

Answer:

the answer is C.

Step-by-step explanation:

if you divide 10 divided by 2 it gives you 5 and then subtract it by 2.2 = 2.8

there goes your answer.