All categories

2 years ago

Help me awnser these questions please

Mathematics

1 answer:

Naya [18.7K]2 years ago

8 0

Answer: y=x-1

General equation of linear function: $y=mx+b$

A(-1;0); x=-1, y=0

B(0;-1); x=0, y=-1

Let's solve the system of equations

$\displaystyle\\\left \{ {{0=-1m+b} \atop {-1=0x+b}} \right. =>b=-1=>0=-m-1;m=-1$

You might be interested in

Solve the following quadratic equation:

Advocard [28]

Answer:

-3.5 or -6

Step-by-step explanation:

2x^2+19x+40=-2

2x^2+19x+40+2=0

2x^2+19x+42=0

2x^2+(12+7)x+42=0

2x^2+12x+7x+42=0

2x(x+6)+7(x+6)=0

(x+6)(2x+7)=0

either,

x+6=0

x=-6

or,

2x+7=0

2x=-7

x=-7/2

x=-3.5

4 0

3 years ago

Decide whether the triangles are similar. If so, determine the appropriate expression to solve for

astraxan [27]

Answer:

ΔABC ~ ΔEDF; x = r × w/z

Step-by-step explanation:

m∠ABC = 180 -47 - 62 =71 = m∠EDF

ΔABC ~ ΔEDF

w/z = x/r

x = r × w/z

6 0

3 years ago

Read 2 more answers

Diego is 59.5 inches tall. His brother is 40.125 inches tall. How much taller than his his brother is Diego?

lukranit [14]

He is 1 inch. Taller

6 0

2 years ago

Write an equation for an ellipse centered at the origin, which has foci at (\pm\sqrt{8},0)(± 8 ,0)(, plus minus, square root o

Alchen [17]

Answer:

The equation of ellipse centered at the origin

$\frac{x^2}{18} +\frac{y^2}{10} =1$

Step-by-step explanation:

given the foci of ellipse (±√8,0) and c0-vertices are (0,±√10)

The foci are (-C,0) and (C ,0)

Given data (±√8,0)

the focus has x-coordinates so the focus is lie on x- axis.

The major axis also lie on x-axis

The minor axis lies on y-axis so c0-vertices are (0,±√10)

given focus C = ae = √8

Given co-vertices ( minor axis) (0,±b) = (0,±√10)

b= √10

The relation between the focus and semi major axes and semi minor axes are $c^2=a^2-b^2$

$a^{2} = c^{2} +b^{2}$

$a^{2} = (\sqrt{8} )^{2} +(\sqrt{10} )^{2}$

$a^{2} =18$

$a=\sqrt{18}$

The equation of ellipse formula

$\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

we know that $a=\sqrt{18} and b=\sqrt{10}$

Final answer:-

The equation of ellipse centered at the origin

$\frac{x^2}{18} +\frac{y^2}{10} =1$

8 0

3 years ago

Read 2 more answers

Is it scalene isosceles or equilateral then write acute obtuse or right thx

almond37 [142]

It's scalene because it has different sides and obtuse because root 40²+30²=50
110>50

4 0

3 years ago