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Marat540 [252]
3 years ago
14

Which of the following is a true statement?

Mathematics
2 answers:
GaryK [48]3 years ago
8 0
1. 2, 3, 4 are correct

Lina20 [59]3 years ago
5 0
1) last three cba to do the rest soz
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28 x 9 x 3 - 1 = ?<br><br> HELP PLS
erma4kov [3.2K]
The correct answer is 755
3 0
3 years ago
Can you help me solve this equation?
dem82 [27]

Sure

Answer:

x = -2

If the steps aren't belong to the lesson that you want, just tell me the lesson title so I can get the answer for you !!!!

...

The steps

Multiply all terms by (x-3)(x+3) and cancel:

x(x+3)+2x(x−3)=18

3x2−3x=18(Simplify both sides of the equation)

3x2−3x−18=18−18(Subtract 18 from both sides)

3x2−3x−18=0

3(x+2)(x−3)=0(Factor left side of equation)

x+2=0 or x−3=0(Set factors equal to 0)

x=−2 or x=3

Check answers. (Plug them in to make sure they work.)

x=−2 (Works in original equation)

x=3 (Doesn't work in original equation)

7 0
2 years ago
PLS HELP! URGENT 10 POINTS!!!
mixer [17]

Answer: 392.7

Step-by-step explanation:

A=πr2=π·52≈78.53982cm² (or 78.54)

78.54 x 5

8 0
3 years ago
Read 2 more answers
Part 3: Write the equation of and graph an ellipse.
tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

The center is halfway between vertices, at (4, -6).

It is also halfway between foci.

:::::

The vertices are vertically aligned, so the parabola is vertical.

General equation for a vertical ellipse:

 (y-k)²/a² + (x-h)²/b² = 1

with

 center (h,k)

 vertices (h,k±a)

 co-vertices (h±b,k)

 foci (h,k±c), c² = a²-b²

Apply your data and solve for h, k, a, and b.

center (h,k) = (4, -6)

h = 4

k = -6

vertices (4,-6±a) = (4,-6±9)

a = 9

foci (4,-6±c) = (4,-6±5√2)

b² = a² - c² = 9² - (5√2)² = 31

b = √31

The equation becomes

 (y+6)²/81 + (x-4)²/31 = 1

:::::

length of major axis = 2a = 18

length of minor axis = 2b = 2√31

8 0
3 years ago
Flower bed has the shape of a rectangle 24 ft long and 9 ft wide what is the area in square yards
natali 33 [55]
The answer is 24 square yards
24ft=8yd
9ft=3yd
So 8*3=24 square yard

Hope this helps
6 0
3 years ago
Read 2 more answers
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