2 years ago

Factor the expression completely. -50x^2 +45

Mathematics

1 answer:

stich3 [128]2 years ago

8 0

Answer:

Step-by-step explanation:

-5(10x^2 - 9)

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What is the slope of the line that passes through the points (2,-6) and (-3,7)?

dmitriy555 [2]

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2 years ago

Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

$r=\sqrt{100}\ units$

$r=10\ units$

step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

$(x-5)^2+(y+4)^2=100$

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2 years ago

Answer all of the questions below in order to determine the volume of the rectangular prism. 10 3 5 Press the play button: play

soldier1979 [14.2K]

Answer:

10, 50, 150

Step-by-step explanation:

i just did it lol.

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2 years ago

X sqaured plus 4x plus 20 equlas 12x minus 5

skelet666 [1.2K]

Answer:

x² + 4x + 20 = 12x - 5

x² + 4x - 12x + 20 + 5 = 0

x² - 8x + 25 = 0

Δ = √b² - 4ac

= √(-8)² - 4×1×25

= √64-100

= √(-36)

x ∉ R

3 0

2 years ago

Read 2 more answers