3 years ago

I need to know if this is a False conjecture

Mathematics

1 answer:

Nataliya [291]3 years ago

6 0

It is true. Supplementary angles lie on the same line, just like a linear pair.

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3/4x^2+8x+20=0 factor

elena-s [515]

$\frac{3}{4} {x}^{2} + 8x + 20 = 0$
multiplied by 4
$3 {x}^{2} + 32x + 80 = 0 \\ (3x + 20)(x + 4) = 0 \\ so \: x = - \frac{20}{3} \: or \: x = - 4$

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3 years ago

What is the diameter of the following?

Tamiku [17]

Answer:

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

(x - 9)² + (y - 4)² = 36 ← is in standard form

with r² = 36 ⇒ r = $\sqrt{36}$ = 6

diameter = 2 × r = 2 × 6 = 12

4 0

3 years ago

Please help as soon as possible

alexira [117]

I think that there’s around 16 squares.

5 0

3 years ago

Use each digits 2,3,7,8 to make numbers FROM 20,21,22 SO ON ALL THE WAY TO 50 FOR EXAMPLE 2+3+7+8=20

Ahat [919]

2+3+7+8=20

2 x 3+7+ 8= 21

2 x 7 + 3+ 8= 25

8 x 2 + 7 + 3= 26

3 x 7 +8 - 2= 27

8 x 3 + 7 - 2= 29

8 x 7 ÷ 2 + 3= 31

7 x 2 x 3 -8 = 34

There is a couple, but i am not doing all of them
I hope this helps anyway :).

5 0

3 years ago

Evaluate y/2x-z x=4y=3and z=2

Gwar [14]

First you plug in the missing values
y=3 x=4 z=2
3÷2×4-2
than you solve
the answer is 4

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3 years ago